Effort-saving hand tool

Details Effort-saving hand tool Effort-saving hand tool

2009-05-20

2011-12-06

Francis, Faye (Department: 3725)

Metal deforming

With means to actuate both elements of tool-couple

Handle actuated

C029S750000

Reexamination Certificate

active

08069700

ABSTRACT:
An effort-saving hand tool includes a first shaft, a second shaft, a connection shaft, and a third shaft. The first shaft has a first end, a second end, and a pivot point located between the first end and the second end. The second end of the first shaft includes a first loading part. The second shaft has a first end and a second end. The pivot point of the first shaft is pivoted to the first end of the second shaft. The second end of the second shaft includes a second loading part. The connection shaft has a first end pivoted to the first shaft. The third shaft has a slender rear part, a first side, and a second side. The first side of the third shaft is pivoted to the second shaft. The second side of the third shaft is pivoted to a second end of the connection shaft.

REFERENCES:
patent: 3230758 (1966-01-01), Klingler
patent: 3710611 (1973-01-01), Filia
patent: 4022051 (1977-05-01), Ichikawa
patent: 4433569 (1984-02-01), Santinelli
patent: 5074142 (1991-12-01), Heskey et al.
patent: 6109088 (2000-08-01), Schrader et al.
patent: 7444851 (2008-11-01), Janson
patent: 7845588 (2010-12-01), Goodick
patent: 2005/0086993 (2005-04-01), Wang
patent: 2008/0196473 (2008-08-01), Chiasson et al.

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