Reciprocatory saw

Details Reciprocatory saw Reciprocatory saw

2011-01-04

2011-01-04

Payer, Hwei-Siu C (Department: 3724)

Cutlery

Cutting tools

Saw

C030S337000, C279S071000

Reexamination Certificate

active

07861418

ABSTRACT:
A reciprocatory saw, in particular, a jigsaw, is made up of a pitman with a chuck arranged for the releasable clamping of a saw blade. The chuck contains a movably mounted chuck jaw arrangement able to be clamped laterally against the saw blade shank, a wedge element arrangement adjacent to and for cooperation with the chuck means, a first spring acting downwardly on the inserted saw blade and a second spring acting on the wedge element arrangement downwardly. The wedge element arrangement is connected with the chuck jaw arrangement in a manner for the transmission of rotary movement and from the outside and is able to be shifted between a bottom clamping position clamping the chuck jaw arrangement against the saw blade shank and a top release position freeing the chuck jaw arrangement. The wedge element arrangement assumes an angular position turned in relation to the clamping position and is seated on a stationary holding face.

REFERENCES:
patent: 3750283 (1973-08-01), Hoffman
patent: 5306025 (1994-04-01), Langhoff
patent: 5340129 (1994-08-01), Wright
patent: 5487221 (1996-01-01), Oda et al.
patent: 5644847 (1997-07-01), Odendahl et al.
patent: 5946810 (1999-09-01), Hoelderlin et al.
patent: 6209208 (2001-04-01), Marinkovich et al.
patent: 6725548 (2004-04-01), Kramer et al.
patent: 7251897 (2007-08-01), Shuhua
patent: 2008/0209742 (2008-09-01), Kretschmar et al.
patent: 199 47 840 (2000-04-01), None
Office Action from the Germany Patent Office dated Oct. 5, 2007 (2 pages).

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