Title:
POWER TOOLS AND BLADES FOR USE WITH POWER TOOLS
Document Type and Number:
WIPO Patent Application WO2003028966
Kind Code:
A3
Abstract:
This present invention provides a blade (40) for use with a power tool, said blade comprising: an arcuate cutting edge (54); an elongate body member having its longitudinal axis substantially aligned with a radius of said arcuate cutting edge; a first attachment point (42) for attaching said blade to said power tool, said first attachment point providing means whereby, in use of said blade, said arcuate cutting edge may be driven by said power tool in a reciprocating motion; a second attachment point (52), also for attaching said blade to said power tool, said second attachment point providing a pivot point about which, in use of said blade, said blade may pivot; wherein the centre of curvature (C) of said arcuate cutting edge is offset from said pivot point. In a second aspect, the present invention also provides a power tool for cutting into or through a workpiece, said power tool being suitable for use with such a blade.
Inventors:
WALKER ANDREW (GB)
Application Number:
PCT/EP2002/010934
Publication Date:
December 24, 2003
Filing Date:
September 30, 2002
Export Citation:
Assignee:
BLACK & DECKER INC (US)
WALKER ANDREW (GB)
WALKER ANDREW (GB)
International Classes:
B23D51/16; B23D61/02; B23D61/12; B27B19/00; (IPC1-7): B27B19/00; B23D61/02
Foreign References:
| FR2528753A1 | 1983-12-23 | |||
| US6022353A | 2000-02-08 | |||
| DE4024235A1 | 1992-02-27 | |||
| DE1760076U | 1958-01-16 | |||
| US3678934A | 1972-07-25 | |||
| US2492156A | 1949-12-27 | |||
| DE478354C | 1929-06-24 | |||
| US3087519A | 1963-04-30 | |||
| EP0842724A2 | 1998-05-20 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 017, no. 059 (M - 1363) 5 February 1993 (1993-02-05)
Download PDF:
Previous Patent: A THERMO-FORMED CONTAINER AND A METHOD AND APPARATUS FOR PRODUCING THE SAME
Next Patent: A PRESS, APPARATUS AND METHOD FOR MOULDING
Next Patent: A PRESS, APPARATUS AND METHOD FOR MOULDING