Cutting – With product handling means – Means to move – guide – or permit free fall or flight of product
Patent
1984-07-16
1989-05-02
Yost, Frank T.
Cutting
With product handling means
Means to move, guide, or permit free fall or flight of product
83658, 83689, B26D 718
Patent
active
048257397
ABSTRACT:
A punch system for rigid and brittle plastic sheet materials such as polycarbonates comprising a punch body mounted in a carrier board and having an upwardly projecting head portion which defines the shape of the hole to be punched, a ring of high durometer urethane mounted on the punch head to serve as a stabilizer and stripper and a disk of high durometer urethane mounted on the under surface of the press platen directly opposite the punch to receive the punch head and the slug of punched material during the punching operation. The punch is used in combination with a steel rule die but can be used either with other punches or alone.
REFERENCES:
patent: 356113 (1887-01-01), Forbes
patent: 553715 (1896-01-01), Long et al.
patent: 2214701 (1940-09-01), Scull
patent: 2815814 (1957-12-01), Taylor
patent: 3130885 (1964-04-01), Fleming
patent: 3656394 (1972-04-01), McCutcheon
patent: 3850064 (1974-11-01), Dwyer
Bernal, Inc.
Hamill Jr. Tom
Yost Frank T.
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