Two-position quick-change saw

Cutlery – Cutting tools – Saw

Reexamination Certificate

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Details

C030S513000

Reexamination Certificate

active

07007394

ABSTRACT:
A two-position, quick-change hacksaw consists of a back member, handle structure adjacent a rearward end portion of the back member, and a swing arm adjacent the forward end. The free end of the swing arm and the forward end portion of the back member have coplanar blade-engaging elements thereon which serve to engage the forward end of the blade and which are commonly disposed on an arc that circumscribes a third coplanar blade-engaging element disposed on a coupling block of a tensioning mechanism for mounting the rearward end of the blade. Two coplanar sets of transversely paired engagement elements enable mounting of the blade both in a plane parallel to a medial plane of the frame and also in a plane disposed at a substantial angle thereto. In one configuration, with the swing arm in its inoperative position, the saw is adapted for cutting within a relatively confined space; with the swing arm in its operative position the saw is configured for cutting within a relatively unconfined space.

REFERENCES:
patent: 1245345 (1917-11-01), Howell
patent: 1429195 (1922-09-01), Donaldson
patent: 2173365 (1939-09-01), Kessler
patent: 2514880 (1950-07-01), Leatherman
patent: 2556093 (1951-06-01), Leatherman
patent: 2612920 (1952-10-01), Williams
patent: 2645261 (1953-07-01), Swanstrom
patent: 2782821 (1957-02-01), Gunnerson
patent: 3822731 (1974-07-01), Keymer
patent: 4680863 (1987-07-01), Duffy
patent: 5873170 (1999-02-01), Stanley
patent: 6606795 (2003-08-01), Erisoty et al.
patent: 6742268 (2004-06-01), Chen

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