Punching machine for cutting glass

Details Punching machine for cutting glass Punching machine for cutting glass

1999-07-08

2000-11-28

Banks, Derris H.

Abrading

Machine

Rotary tool

451178, 83128, B24B 700, B24B 900

Patent

active

061528129

ABSTRACT:
A punching machine for cutting glass having a punch body comprises a hollow punch holder on a top side of the punch body; a hollow punch on a bottom side of the punch body having a cavity on a front end and a circumferential portion with a plurality of sand formed thereon surrounding an outer surface of the cavity an elastic member; and a knockout pin provided through the punch holder and the punch having one end urged against one end of the elastic member in the punch holder and the other end extended downwardly from the cavity in a stored position; whereby as the circumferential portion is cutting through a glass surface, the knockout pin is urging against a portion of glass until the portion is separated from the glass completely.

REFERENCES:
patent: 3190160 (1965-06-01), Armcost
patent: 3620113 (1971-11-01), Gargrave
patent: 4051754 (1977-10-01), Harcuba et al.
patent: 4691602 (1987-09-01), Schlueter
patent: 4704825 (1987-11-01), Moore
patent: 5482498 (1996-01-01), Hisgashikawa

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