Cutting – With product handling means – Means to move – guide – or permit free fall or flight of product
Patent
1989-06-16
1991-06-25
Yost, Frank T.
Cutting
With product handling means
Means to move, guide, or permit free fall or flight of product
83143, 83685, 83698, 83821, B26F 114
Patent
active
050256912
ABSTRACT:
The invention involves a novel structure used in piercing a metal workpiece. Other workpieces made from materials other than metal may be used, if desired. The structure uses a punch plate having movably connected below it a stripper plate. A spring means connects these two plates so that they are movable toward each other. The stripper plate has an aperture centrally located therein and a tubular punch guide fitted over the aperture. A punch housing containing a punch is telescopically fitted within said tubular punch guide and will travel through the length of the punch guide and will travel through the length of the punch guide, through the aperture and puncture a workpiece held below. The tubular punch guide prevents side to side movement of the punch and punch housing to substantialy minimize damage to the punch and supporting structures.
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patent: 4007653 (1977-02-01), Cady
patent: 4257292 (1981-03-01), Faull
Rada Rinaldi
Ralabate James J.
Yost Frank T.
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