Glass breaking tool

Details Glass breaking tool Glass breaking tool

1985-12-31

1987-09-15

Yost, Frank T.

Severing by tearing or breaking

Methods

With preliminary weakening

125 23R, 225 93, 225103, C03B 3302

Patent

active

046934030

ABSTRACT:
A glass breaking tool has a blunt end on a first member which is adapted to be placed adjacent a glass plate. A second member is moveable into striking engagement with the first member so as to transmit impact forces to the blunt edge to the glass, without relative motion between the first member and the glass plate. This permits breaking a glass plate along a score line, when the blunt edge is placed directly beneath a score line in a glass plate. The second member is guided in its travel by a guide rod, the guide rod having a retaining ring in the end thereof to retain the second member on the guide rod.

REFERENCES:
patent: 254415 (1882-02-01), Wellington
patent: 1162685 (1915-11-01), Derbyshire
patent: 1360446 (1920-11-01), Rose
patent: 2475041 (1949-07-01), Mattson
patent: 3169683 (1965-02-01), Pierce
patent: 3297015 (1967-01-01), Crawford
patent: 3565351 (1971-02-01), Ross
patent: 3568657 (1971-03-01), Gue
patent: 3570733 (1971-03-01), Allen
patent: 4405005 (1983-09-01), Zanker
patent: 4470440 (1984-09-01), Thor

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