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Publication numberWO2004110223 A3
Publication typeApplication
Application numberPCT/US2004/018689
Publication date22 Sep 2005
Filing date11 Jun 2004
Priority date11 Jun 2003
Also published asUS6938345, US20040250423, WO2004110223A2
Publication numberPCT/2004/18689, PCT/US/2004/018689, PCT/US/2004/18689, PCT/US/4/018689, PCT/US/4/18689, PCT/US2004/018689, PCT/US2004/18689, PCT/US2004018689, PCT/US200418689, PCT/US4/018689, PCT/US4/18689, PCT/US4018689, PCT/US418689, WO 2004/110223 A3, WO 2004110223 A3, WO 2004110223A3, WO-A3-2004110223, WO2004/110223A3, WO2004110223 A3, WO2004110223A3
InventorsZu Sheng Yu
ApplicantZu Sheng Yu
Export CitationBiBTeX, EndNote, RefMan
External Links: Patentscope, Espacenet
Combination utility knife
WO 2004110223 A3
Abstract
A retractable blade utility knife (100) is provided which comprises a knife housing (10), a blade (9) having a cutting surface (15) in a lower end and a sawing surface (28) in an upper end of the blade (9), a pencil housing (30) formed in a lower rear part of the knife housing to keep hold of a pencil, a pencil sharpening slot (8) connected to a conical bore (1) and a pencil chips storage room (7), a rope-cutting recess (16) for facilitating rope cutting by the blade, a blade carrier (22) for carrying the blade (9) and for sliding along a longitudinal axis of a knife groove (45) formed in one side of the knife housing, and a rear cover (20) of the knife having a pencil inlet hole (32) and a rear cover fixed switch (21), the rear cover (20) detachably coupled to a rear portion of the knife housing (10) via the rear cover fixed switch (21), thereby providing a pencil chip storage space (7) when closed to store pencil chips and a pencil chip outlet when detached to empty the pencil chips.
Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US4242795 *2 Feb 19796 Jan 1981The Stanley WorksKnife handle
US4248283 *26 Nov 19793 Feb 1981Lowell KayeCosmetic pencil sharpener
US4631829 *3 Sep 198530 Dec 1986Pacific Handy Cutter, Inc.Hand-held safety holder for a single-edge razor blade for cutting a sheet or strand
US4635309 *17 May 198513 Jan 1987Larsen Peter LMultiple use hand tool
US4891881 *16 May 19899 Jan 1990Mills Norman TCombined cutting tool and sharpener
US5315760 *17 May 199331 May 1994Emerson Stephen WRazor knife with built-in pencil sharpener
US5557818 *14 Nov 199424 Sep 1996Leon; MichaelUtility pen-knife
US5584123 *31 Oct 199517 Dec 1996Chi; Chih-SungMounting/carrying device for blades
US5979058 *10 Jun 19989 Nov 1999Warner Manufacturing CompanyContractor hand tool
US6219869 *21 Jan 199924 Apr 2001Peggy BurbaPocketknife with storage compartment
US6279186 *28 Oct 199928 Aug 2001Perry GartnerMultifunctional utility tool
US6363614 *12 Oct 19992 Apr 2002George H. UmsteadCombination utility retractable saw and knife device
Classifications
International ClassificationB43K29/18, B26B9/02, B26B11/00, B43K29/00, B43L23/08, B26B5/00, B23D61/12
Cooperative ClassificationB26B11/00, B26B5/002, B43L23/08, B43K29/18, B26B9/02, B43K29/004, B23D61/12
European ClassificationB26B5/00A1, B43L23/08, B23D61/12, B43K29/18, B43K29/00M, B26B11/00, B26B9/02
Legal Events
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2 Mar 2005121Ep: the epo has been informed by wipo that ep was designated in this application
2 Aug 2006122Ep: pct application non-entry in european phase