Cutlery – Perforating or indenting implements – Pivoted handles
Patent
1993-12-10
1995-01-03
Rada, Rinaldi I.
Cutlery
Perforating or indenting implements
Pivoted handles
30358, B26F 102
Patent
active
053774159
ABSTRACT:
An improved sheet metal punch including a second class lever system compounded with a hybrid first-third class lever system. A nutcracker-like tool employs two lever arms that are linked at the ends thereof by a fulcrum link and opposing fulcrum points, one on each of the lever arms, to actuate a hybrid first-third class lever system to drive a floating punch into a guide-stripper plate and die matrix assembly that are rigidly fixed to one of the levers. The punch assembly consists in a plate having a plurality of easily removable/replacable cylindrical tools projecting therefrom and which are used in combination with the die matrix to perforate sheet materials such as sheet metal, fiberglass and other relatively thin, planar substances.
REFERENCES:
patent: 732850 (1903-07-01), Hayden
patent: 750024 (1904-01-01), Etnyre et al.
patent: 2463213 (1949-01-01), Stewart
patent: 3505714 (1970-04-01), Boileau
patent: 4033037 (1977-07-01), Cooley
patent: 4525929 (1985-07-01), Brophy, Sr. et al.
patent: 4640117 (1987-02-01), Anderson et al.
patent: 4707924 (1987-11-01), Burney
patent: 4729170 (1988-03-01), Hartmeister
patent: 4753010 (1988-06-01), Franovich
patent: 4768693 (1988-09-01), Tomaszewski
patent: 4987683 (1991-01-01), Brych
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