CA1123183A - Knife handle - Google Patents
Knife handleInfo
- Publication number
- CA1123183A CA1123183A CA344,903A CA344903A CA1123183A CA 1123183 A CA1123183 A CA 1123183A CA 344903 A CA344903 A CA 344903A CA 1123183 A CA1123183 A CA 1123183A
- Authority
- CA
- Canada
- Prior art keywords
- blade
- handle
- abutment
- slot
- thumb button
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 210000003813 thumb Anatomy 0.000 claims abstract description 29
- 238000005520 cutting process Methods 0.000 abstract description 8
- 230000000994 depressogenic effect Effects 0.000 abstract description 3
- 210000003811 finger Anatomy 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B5/00—Hand knives with one or more detachable blades
- B26B5/001—Hand knives with one or more detachable blades with blades being slid out of handle immediately prior to use
Abstract
ABSTRACT OF THE DISCLOSURE
An elongated knife handle is provided with a blade carrier with a thumb button extending through a longitudinal top slot in the handle and is depressed for manipulating and latching the blade carrier in its sheathed and unsheathed positions. An integral upstanding abutment which extends higher than the thumb button is provided adjoining the forward end of the top slot and extends rearwardly along both sides of the forward end of the top slot to form a recess in which the thumb button is nested when it is in its forward or operating position to prevent the accidental unlatching of the blade carrier during heavy cutting operations.
An elongated knife handle is provided with a blade carrier with a thumb button extending through a longitudinal top slot in the handle and is depressed for manipulating and latching the blade carrier in its sheathed and unsheathed positions. An integral upstanding abutment which extends higher than the thumb button is provided adjoining the forward end of the top slot and extends rearwardly along both sides of the forward end of the top slot to form a recess in which the thumb button is nested when it is in its forward or operating position to prevent the accidental unlatching of the blade carrier during heavy cutting operations.
Description
3~83 V
KNIFE HANDLE
This invention relates to knife handles and more particular-ly to a knife handle for a utility knife in which the blade may be slidably moved from a sheathed position in which it is stored within the handle and an extended unsheathed position.
A typical knife handle of this type is described in greater detail in U.S. patent 3,107,426 issued to W.H. Robinson, Jr.
on October 22, 1963 and entitled "Utility Knife". Such a knife incorporates a blade carrier which supports the blade and incorporates a thumb actuated button that can be de-pressed to unlatch the blade from one of several latched positions and shifted to another position. The thumb actuated button extends through a slot in the top of the knife handle and is secured to the blade carrier by means of a resilient finger. Such knives are of great utility in a wide variety of cutting operations. It has been found, however, that knives of the type described, are sometimes subject to the inadvertent or unintentional activation of the ~,, .
.,:
., :. ~:
~1~23~83 thumb adjusting button particularly when heavy pressure isapplie~
during the cutting opera~ion. Efforts to solve this problem have been made and one solution is described in U. S. patent 3,888,002, issued to J.J. Graham, on June 10, 1975. In the design disclosed in that patent, the thumb button is rotated so that it straddles the slot through the top of the knife handle and cannot be depressed.
The present invention isintended to provide a different solution to the problem and one which is extremely durable, can be inexpensively incorporated in existing knife handle designs without requiring extensive changes therein and does not involve any moving parts.
According to the present invention there is provided an elongated knife handle having a blade opening at the forward end thereof, a blade carrier within said handle for mounting a blade for longitudinal movement between a sheathed position in which it is stored in the handle and an extended unsheathed position, and a longitudinal slot along the top of the handle, said blade carrier including a latching member providing a thumb button extending through said top slot for manipulation of the blade carrier between its sheathed and unsheathed posi-tions, and improvement wherein an integral upstanding abutment is provided on the top of the handle aajoining the forward end of the top slot, said abutment extending higher than said thumb button to shield the thumb button from inadvertent pressure when the thumbbutton is positioned at the forward end of the slot with the blade in its unsheathed position.
One way of carrying out the invention is described below with reference to the drawings which illustrates a specific embod-iment in which:
Fig. l is a perspective view of a knife handle incorpor-ating the present invention;
B ~- 2 -31~3 Fig. 2 is a side elevational view of the knife handle of Fig. 1, partly broken away and partly in section;
Fig. 3 is a view similar.to Fig. 2 showing a modified form of the invention;
- 2a -u :: ,, ~ :: .. . . . . . .
~1~23~L~3 Fig. 4 is a front end view of the knife of Fig. 3;
Fig. 5 is a rear end view thereof;
5 Fig. 6 is a fragmentary side elevational view of another modified form of the invention; and Fig. 7 is a fragmentary top plan view of the knife handle of Fig. 6.
As more fully described in the aforesaid U.S. patent 3,107,426, the knife handle comprises a pair of mating handle members or halves 14, 16 which are assembled to form a hollow interior provided with guide ways 18, 20 for slidably mounting a gen-15 erally planar blade carrier 22 for rectilinear movement intoand out of an opening 23 at the front end of the handle. The blade carrier 22 in turn mounts a blade 24 which is nested be-tween the flanges 26, 28 of the blade carrier and is re~ained in a fixed longitudinal position on the blade carrier by a 20 tab 30 which engages a notch 32 in the edge of the blade.
As shown, an integral resilient finger 34 extends rearwardly of the planar blade supporting portion of the blade carrier 22, and provides an upwardly turned end forming a latching tab 36 25 which is adapted to be received in any one of the notches 38, 40, 42, 44, to latch the blade carrier and the blade in a selected sheathed or unsheathed position. A thumb button 46 is connected to the resilient finger 34 by a neck 48 which .. ... . ..
3~33 extends through a longitudinal slot 50 in the top of the handle and is conveniently accessible for thumb actuation. It will readily be seen that the longitudinal position of the blade carrier 22 may be adjusted by depressing the thumb button 46 to unlatch the latching tab 36 and shifting t~he blade carrier longitudinally with respect to the handle.
As previously stated, the thumb button 46 is exposed so that it is readily accessible for adjusting the blade carrier and 10 as such may be accidentally depressed particularly when heavy pressure is being applied during the cutting operation.
In accordance with this invention, means are provided to prevent such inadvertent pressure from being applied to the 15 thumb button while at the same time retaining the accessibil-ity of the thumb button foT the intentional manipulation of the blade carrier.
As shown in Figs. 1 and 2, an upstanding abutment 52 which 20 extends higher than the top surface of the thumb button 46 is formed integrally with the handle halves at the forward end of the slot 50. The abutment 52 provides a recess 54 defined by sidewalls 56, 58 of the abutment which overlap the forward end of the slot 50 so that button 46 may be nested in 25 the recess 54 when the blade 24 is in its unsheathed or op-erating position. Thus the abutment 52 shields the thumb button 46 during the cutting operation when heavy pressure might be applied.
. ~ .
- , .. . .
;
, .
,, ; ~, : , , : .. , ~ . .
, .
~Z3~33 In accordance with the preferred embodiment of the invention, the sidewalls 56,58 of the abutment 52 extend a distance so that approximately half of the th~b button 46 is nested in the recess 54, and shielded by the abutment 52 with the rear half of the thumb button:45 being exposed for manipulation as required to retract the blade into the knife handle. It will be realized that when the latching tab 36 is in notches 40 or 42, the abutment 52 does not shield abutment 46, nor is such shielding required. When the knife is in use, particularly dur-ing heavy cutting, the thumb applies a force to the area of the knife in the vicinity of abutment 52 to apply a heavy pressure so that the blade cuts more rapidly. When the latching tab is in the immediate notches, i.e., notches 40 and 42, thumb pressure, if applied, will still be applied at the same longi-tudinal point along the back of the handle. Since the button 46 is moved toward the rear of the handle, it will be longitu-dinally spaced from the place where the longitudinal pressure is applied and thus will not be subject to inadvertent pressure.
The modified design of Figs. 3-5 is one wherein the planar blade support portion of blade carrier 22a is provided with a flexible upstanding arm 22b mounting a tab 30a which secures the blade 24 longitudinally of th~ blade carrier. In this design, the handle half 16a is provided with a lateral recess 51 so that, when the blade carrier is in its forward position, the arm 22b may be deflected sideways into the recess 51 to disengage tab 30a from notch 32 of- the blade for the removal of the blade from the blade carrier 22a as more fully disclosed in U.S. patent 3,577,637, is'sued to P.A. Braginetz on May 4, 1971. Inthis design, the upstanding abutment is pro-vided with a longitudinal tunnel 60 formed by a bridging flange 62 of the abutment 52a on handle half 16a. This construction permits the arm 22b to pass through the tunnel 60 from its most forward position as shown in Fig. 3, wherein the blade is un-sheathed for use or replacement to itsrearward positiGn wherein the blade is sheathed or stored within the handle without di-,, . .:
- : . . . .
- , ,~ . : :,, . : ~-, ~Z3~1~3 minishing the surface area of the abutment for receiving thumb pressure auring cutting operations and without reducing the shielding effect of abutment 52a.
1 ~
- 5a -s ',, .
'. . ~: -: ' ',:
.~
.. . . :
~ 3~8~
Figs. 6 and 7 disclose a form of the invention similar to that of Figs. 3-5.
In this embodiment, the handle halves provide a pair of abutment portions 52a and 52b. Abutment porLion 52a provides a tunnel 60 for the passage of arm 22b of blade carrier22~ so that the blade carrier can extend the blade to its unsheathed position in the same manner as in Fig. 3. However, in this form of the invention, the abutment portion 52b extends forwardly of the abutment portion 52a to overlap arm 22b when arm 22b is in its forward position, and extends higher than arm 22b to shield arm 22b when cutting pressure is applièd to the handle.
As can be seen from the foregoing detailed description, the present invention provides a simple, durable, inexpensive, yet effectlve arrangem~nt for preventing the unintentional unlatching of the blade carrier during use, while at the same time retaining the requirements of accessibility of the thumb button for the rapid manipulation of the blade into a stored or sheathed position. It is further apparent that the invention provides a finger rest construction which can readily be incorporated into existing knife handle designs ~ithout requiring extensive changes therein.
.
~; , :, - -. .
. ~
KNIFE HANDLE
This invention relates to knife handles and more particular-ly to a knife handle for a utility knife in which the blade may be slidably moved from a sheathed position in which it is stored within the handle and an extended unsheathed position.
A typical knife handle of this type is described in greater detail in U.S. patent 3,107,426 issued to W.H. Robinson, Jr.
on October 22, 1963 and entitled "Utility Knife". Such a knife incorporates a blade carrier which supports the blade and incorporates a thumb actuated button that can be de-pressed to unlatch the blade from one of several latched positions and shifted to another position. The thumb actuated button extends through a slot in the top of the knife handle and is secured to the blade carrier by means of a resilient finger. Such knives are of great utility in a wide variety of cutting operations. It has been found, however, that knives of the type described, are sometimes subject to the inadvertent or unintentional activation of the ~,, .
.,:
., :. ~:
~1~23~83 thumb adjusting button particularly when heavy pressure isapplie~
during the cutting opera~ion. Efforts to solve this problem have been made and one solution is described in U. S. patent 3,888,002, issued to J.J. Graham, on June 10, 1975. In the design disclosed in that patent, the thumb button is rotated so that it straddles the slot through the top of the knife handle and cannot be depressed.
The present invention isintended to provide a different solution to the problem and one which is extremely durable, can be inexpensively incorporated in existing knife handle designs without requiring extensive changes therein and does not involve any moving parts.
According to the present invention there is provided an elongated knife handle having a blade opening at the forward end thereof, a blade carrier within said handle for mounting a blade for longitudinal movement between a sheathed position in which it is stored in the handle and an extended unsheathed position, and a longitudinal slot along the top of the handle, said blade carrier including a latching member providing a thumb button extending through said top slot for manipulation of the blade carrier between its sheathed and unsheathed posi-tions, and improvement wherein an integral upstanding abutment is provided on the top of the handle aajoining the forward end of the top slot, said abutment extending higher than said thumb button to shield the thumb button from inadvertent pressure when the thumbbutton is positioned at the forward end of the slot with the blade in its unsheathed position.
One way of carrying out the invention is described below with reference to the drawings which illustrates a specific embod-iment in which:
Fig. l is a perspective view of a knife handle incorpor-ating the present invention;
B ~- 2 -31~3 Fig. 2 is a side elevational view of the knife handle of Fig. 1, partly broken away and partly in section;
Fig. 3 is a view similar.to Fig. 2 showing a modified form of the invention;
- 2a -u :: ,, ~ :: .. . . . . . .
~1~23~L~3 Fig. 4 is a front end view of the knife of Fig. 3;
Fig. 5 is a rear end view thereof;
5 Fig. 6 is a fragmentary side elevational view of another modified form of the invention; and Fig. 7 is a fragmentary top plan view of the knife handle of Fig. 6.
As more fully described in the aforesaid U.S. patent 3,107,426, the knife handle comprises a pair of mating handle members or halves 14, 16 which are assembled to form a hollow interior provided with guide ways 18, 20 for slidably mounting a gen-15 erally planar blade carrier 22 for rectilinear movement intoand out of an opening 23 at the front end of the handle. The blade carrier 22 in turn mounts a blade 24 which is nested be-tween the flanges 26, 28 of the blade carrier and is re~ained in a fixed longitudinal position on the blade carrier by a 20 tab 30 which engages a notch 32 in the edge of the blade.
As shown, an integral resilient finger 34 extends rearwardly of the planar blade supporting portion of the blade carrier 22, and provides an upwardly turned end forming a latching tab 36 25 which is adapted to be received in any one of the notches 38, 40, 42, 44, to latch the blade carrier and the blade in a selected sheathed or unsheathed position. A thumb button 46 is connected to the resilient finger 34 by a neck 48 which .. ... . ..
3~33 extends through a longitudinal slot 50 in the top of the handle and is conveniently accessible for thumb actuation. It will readily be seen that the longitudinal position of the blade carrier 22 may be adjusted by depressing the thumb button 46 to unlatch the latching tab 36 and shifting t~he blade carrier longitudinally with respect to the handle.
As previously stated, the thumb button 46 is exposed so that it is readily accessible for adjusting the blade carrier and 10 as such may be accidentally depressed particularly when heavy pressure is being applied during the cutting operation.
In accordance with this invention, means are provided to prevent such inadvertent pressure from being applied to the 15 thumb button while at the same time retaining the accessibil-ity of the thumb button foT the intentional manipulation of the blade carrier.
As shown in Figs. 1 and 2, an upstanding abutment 52 which 20 extends higher than the top surface of the thumb button 46 is formed integrally with the handle halves at the forward end of the slot 50. The abutment 52 provides a recess 54 defined by sidewalls 56, 58 of the abutment which overlap the forward end of the slot 50 so that button 46 may be nested in 25 the recess 54 when the blade 24 is in its unsheathed or op-erating position. Thus the abutment 52 shields the thumb button 46 during the cutting operation when heavy pressure might be applied.
. ~ .
- , .. . .
;
, .
,, ; ~, : , , : .. , ~ . .
, .
~Z3~33 In accordance with the preferred embodiment of the invention, the sidewalls 56,58 of the abutment 52 extend a distance so that approximately half of the th~b button 46 is nested in the recess 54, and shielded by the abutment 52 with the rear half of the thumb button:45 being exposed for manipulation as required to retract the blade into the knife handle. It will be realized that when the latching tab 36 is in notches 40 or 42, the abutment 52 does not shield abutment 46, nor is such shielding required. When the knife is in use, particularly dur-ing heavy cutting, the thumb applies a force to the area of the knife in the vicinity of abutment 52 to apply a heavy pressure so that the blade cuts more rapidly. When the latching tab is in the immediate notches, i.e., notches 40 and 42, thumb pressure, if applied, will still be applied at the same longi-tudinal point along the back of the handle. Since the button 46 is moved toward the rear of the handle, it will be longitu-dinally spaced from the place where the longitudinal pressure is applied and thus will not be subject to inadvertent pressure.
The modified design of Figs. 3-5 is one wherein the planar blade support portion of blade carrier 22a is provided with a flexible upstanding arm 22b mounting a tab 30a which secures the blade 24 longitudinally of th~ blade carrier. In this design, the handle half 16a is provided with a lateral recess 51 so that, when the blade carrier is in its forward position, the arm 22b may be deflected sideways into the recess 51 to disengage tab 30a from notch 32 of- the blade for the removal of the blade from the blade carrier 22a as more fully disclosed in U.S. patent 3,577,637, is'sued to P.A. Braginetz on May 4, 1971. Inthis design, the upstanding abutment is pro-vided with a longitudinal tunnel 60 formed by a bridging flange 62 of the abutment 52a on handle half 16a. This construction permits the arm 22b to pass through the tunnel 60 from its most forward position as shown in Fig. 3, wherein the blade is un-sheathed for use or replacement to itsrearward positiGn wherein the blade is sheathed or stored within the handle without di-,, . .:
- : . . . .
- , ,~ . : :,, . : ~-, ~Z3~1~3 minishing the surface area of the abutment for receiving thumb pressure auring cutting operations and without reducing the shielding effect of abutment 52a.
1 ~
- 5a -s ',, .
'. . ~: -: ' ',:
.~
.. . . :
~ 3~8~
Figs. 6 and 7 disclose a form of the invention similar to that of Figs. 3-5.
In this embodiment, the handle halves provide a pair of abutment portions 52a and 52b. Abutment porLion 52a provides a tunnel 60 for the passage of arm 22b of blade carrier22~ so that the blade carrier can extend the blade to its unsheathed position in the same manner as in Fig. 3. However, in this form of the invention, the abutment portion 52b extends forwardly of the abutment portion 52a to overlap arm 22b when arm 22b is in its forward position, and extends higher than arm 22b to shield arm 22b when cutting pressure is applièd to the handle.
As can be seen from the foregoing detailed description, the present invention provides a simple, durable, inexpensive, yet effectlve arrangem~nt for preventing the unintentional unlatching of the blade carrier during use, while at the same time retaining the requirements of accessibility of the thumb button for the rapid manipulation of the blade into a stored or sheathed position. It is further apparent that the invention provides a finger rest construction which can readily be incorporated into existing knife handle designs ~ithout requiring extensive changes therein.
.
~; , :, - -. .
. ~
Claims (4)
OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. An elongated knife handle having a blade opening at the forward end thereof, a blade carrier within said handle for mounting a blade for longitudinal movement between a sheathed position in which it is stored in the handle and an extended unsheathed position,and a longitudinal slot .
along the top of the handle, said blade carrier including a latching member providing a thumb button extending through said top slot for manipulation of the blade carrier between its sheathed and unsheathed positions, the improvement wherein an integral upstanding abutment is provided on the top of the handle adjoining the forward end of the top slot, said abutment extending higher than said thumb button to shield the thumb button from inadvertent pressure when the thumb button is positioned at the forward end of the slot with the blade in its unsheathed position.
along the top of the handle, said blade carrier including a latching member providing a thumb button extending through said top slot for manipulation of the blade carrier between its sheathed and unsheathed positions, the improvement wherein an integral upstanding abutment is provided on the top of the handle adjoining the forward end of the top slot, said abutment extending higher than said thumb button to shield the thumb button from inadvertent pressure when the thumb button is positioned at the forward end of the slot with the blade in its unsheathed position.
2. A knife handle as recited in claim 1 wherein the abut-ment extends rearwardly along both sides of the forward end of the slot to form a recess to nest at least a portion of the thumb button when it is in said forward position.
3. A knife handle as recited in claim 1 wherein the carrier includes a flexible upstanding arm which extends through said top slot forwardly of the thumb piece, said arm includes means for securing the blade on the blade carrier, said handle provides a forward extension to the top slot for receiving the flexible arm when the blade is in its unsheathed position and a lateral recess for receiving the flexible arm when it is deflected laterally to remove the blade, and said abutment is longitudinally tunneled to permit the arm to pass under the abutment.
4. The knife handle of claim 3 wherein the abutment has a forward extension extending along the side of the forward extension to the top slot opposite the lateral recess.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/008,877 US4242795A (en) | 1979-02-02 | 1979-02-02 | Knife handle |
| US008,877 | 1979-02-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1123183A true CA1123183A (en) | 1982-05-11 |
Family
ID=21734210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA344,903A Expired CA1123183A (en) | 1979-02-02 | 1980-02-01 | Knife handle |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4242795A (en) |
| AU (1) | AU530469B2 (en) |
| CA (1) | CA1123183A (en) |
| DE (1) | DE3003528A1 (en) |
Families Citing this family (46)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4451982A (en) * | 1981-07-27 | 1984-06-05 | Collins Walter W | Bolt action knife |
| US4517741A (en) * | 1982-05-19 | 1985-05-21 | Castelluzzo James M | Knife with plural replaceable blade storage and means for single blade extension |
| US4509260A (en) * | 1983-07-12 | 1985-04-09 | Donald Gringer | Knife handle for accommodating different adjustable blade types |
| US4586256A (en) * | 1985-01-07 | 1986-05-06 | The Stanley Works | Knife handle |
| US4813132A (en) * | 1986-08-08 | 1989-03-21 | James Castelluzzo | Utility knife |
| US5099578A (en) * | 1991-05-07 | 1992-03-31 | Jan Rong S | Retractable knife |
| FR2702987B1 (en) * | 1993-03-25 | 1995-06-23 | Preposreve | COLD TRIMMING KNIFE OF THE EDGES OF THE WINDSHIELD PERIPHERY. |
| US5481804A (en) * | 1994-10-12 | 1996-01-09 | Platts; David | Retractable-bladed knife |
| US5509205A (en) * | 1995-01-30 | 1996-04-23 | Millers Falls Tool Company | Utility knife having blade retention feature |
| US5495670A (en) * | 1995-05-04 | 1996-03-05 | Fiskars Inc. | Utility knife |
| USD383963S (en) * | 1995-11-29 | 1997-09-23 | Peter Gold | Safety utility knife |
| US5813121A (en) * | 1996-06-17 | 1998-09-29 | Allway Tools, Inc. | Automatically retractable utility knife |
| US5878501A (en) * | 1997-08-08 | 1999-03-09 | The Stanley Works | Utility knife with retractable blade guard |
| US6000136A (en) * | 1998-04-27 | 1999-12-14 | The Stanley Works | Knife handle |
| US6044562A (en) * | 1998-07-27 | 2000-04-04 | Dillenbeck; Edward J. | Safety interlocking blade release mechanism for hand held cutting tools |
| US6263577B1 (en) | 1998-10-06 | 2001-07-24 | American Safety Razor | Automatic spring retractable utility knife |
| USD444368S1 (en) | 1999-05-07 | 2001-07-03 | American Safety Razor | Retractable utility knife |
| US6249975B1 (en) * | 1999-12-20 | 2001-06-26 | Hsing Tai Lin | Blade support device for a knife |
| US6324763B1 (en) * | 2000-04-07 | 2001-12-04 | Tai-Wang Lee | Structure art design knife |
| US6513246B2 (en) | 2000-11-14 | 2003-02-04 | Great Neck Saw Manufacturers, Inc. | Utility knife |
| US6446340B1 (en) | 2000-11-14 | 2002-09-10 | Great Neck Saw Manufacturers, Inc. | Utility knife |
| US6553674B1 (en) | 2001-12-19 | 2003-04-29 | Awi Acquisition Company | Utility knife that protrudes a blade from a stored stack of blades |
| US6796033B2 (en) | 2002-02-11 | 2004-09-28 | Greg J. Owoc | Utility knife |
| US6938345B2 (en) * | 2003-06-11 | 2005-09-06 | Zu Sheng Yu | Combination utility knife |
| US7131204B2 (en) * | 2003-11-10 | 2006-11-07 | Irwin Industrial Tool Company | Utility knife with actuator for moving blade carrier and for releasing blade therefrom, and related method |
| CN2685033Y (en) * | 2004-03-19 | 2005-03-16 | 仇建平 | Lock catching practical knife holder |
| CN101056745B (en) * | 2004-09-14 | 2011-10-05 | 阿韦洛公司 | Powered utility knife |
| US7231718B2 (en) * | 2005-01-28 | 2007-06-19 | James Timothy Outen | Multi-position locking tool |
| US7520059B2 (en) * | 2005-08-02 | 2009-04-21 | The Stanley Works | Compact utility knife |
| US7797836B2 (en) * | 2005-08-02 | 2010-09-21 | The Stanley Works | Compact utility knife |
| US8201336B2 (en) | 2008-05-02 | 2012-06-19 | Olympia Tools International, Inc. | Retractable utility knife |
| US8695221B2 (en) * | 2008-08-21 | 2014-04-15 | Wen Hao | Utility knife with extended travel carriage |
| US20100223793A1 (en) * | 2009-03-04 | 2010-09-09 | The Stanley Works | Utility knife |
| US8938883B2 (en) * | 2010-01-11 | 2015-01-27 | Allway Tools, Inc. | Cutting implements |
| WO2012088129A2 (en) * | 2010-12-23 | 2012-06-28 | Rosenhan Branden D | Safety suture cutting device and method |
| US8465512B2 (en) * | 2011-04-05 | 2013-06-18 | Branden D. Rosenhan | Safety suture cutting device and related methods |
| USD660675S1 (en) | 2011-06-09 | 2012-05-29 | Allway Tools, Inc. | Twin blade head for a knife |
| US9102068B2 (en) | 2012-05-10 | 2015-08-11 | Allway Tools, Inc. | Multifunction safety knife |
| EP2928394B1 (en) | 2012-12-05 | 2018-01-10 | Penblade, Inc. | Safety cutting device |
| US9901365B1 (en) | 2013-03-15 | 2018-02-27 | PenBlade, Inc. | Set of safety scalpels |
| USD779143S1 (en) | 2014-04-25 | 2017-02-14 | Unger Marketing International, Llc | Window scraper |
| US10575703B2 (en) | 2015-04-29 | 2020-03-03 | Unger Marketing International, Llc | Versatile cleaning devices |
| USD782271S1 (en) | 2015-04-29 | 2017-03-28 | Unger Marketing International, Llc | Tool handle |
| EP3165336A1 (en) | 2015-11-04 | 2017-05-10 | Stanley Black & Decker, Inc. | Spring assisted utility knife |
| EP3165337B1 (en) | 2015-11-05 | 2020-03-18 | Stanley Black & Decker, Inc. | Utility knife with skewed pivotal blade lock |
| US11752613B2 (en) | 2021-05-11 | 2023-09-12 | Andrew Christian | Manually operated convertible utility knife and scraper |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3192624A (en) * | 1963-10-30 | 1965-07-06 | Allway Mfg Co Inc | Knife handle with adjustable blade |
| US3316635A (en) * | 1964-05-06 | 1967-05-02 | Stanley Works | Scoring knife |
| US3943627A (en) * | 1973-11-28 | 1976-03-16 | Stanley Jr Conrad | Front loading utility knife |
| US4005525A (en) * | 1975-08-29 | 1977-02-01 | Allway Tools Inc. | Retractable cutting implement |
| GB1523168A (en) * | 1975-09-10 | 1978-08-31 | Plas Plugs Ltd | Hand grip for a hand knife |
| US4028758A (en) * | 1975-09-22 | 1977-06-14 | Connor John J O | Combination utility knife and staple remover |
-
1979
- 1979-02-02 US US06/008,877 patent/US4242795A/en not_active Expired - Lifetime
-
1980
- 1980-01-30 AU AU55065/80A patent/AU530469B2/en not_active Ceased
- 1980-01-31 DE DE19803003528 patent/DE3003528A1/en active Granted
- 1980-02-01 CA CA344,903A patent/CA1123183A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE3003528C2 (en) | 1989-03-23 |
| AU530469B2 (en) | 1983-07-14 |
| US4242795A (en) | 1981-01-06 |
| AU5506580A (en) | 1980-08-07 |
| DE3003528A1 (en) | 1980-08-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |