Combined punch retainer and fluid actuated stripper

Details Combined punch retainer and fluid actuated stripper Combined punch retainer and fluid actuated stripper

1980-04-04

1982-02-23

Schran, Donald R.

Cutting

With product handling means

Means to move, guide, or permit free fall or flight of product

83138, B26D 706

Patent

active

043163998

ABSTRACT:
A punch retainer is formed with a bore in its upper portion for releasably securing a punch therein. The lower portion of the punch retainer is formed as a cylinder for a vertically movable stripper piston. The portion of the cylinder above the piston is connected to a source of gas under pressure so as to bias the piston downwardly. The punch extends downwardly in sealed relation through a central bore in the piston and terminates slightly above the lower end of the piston when the piston is in its lowermost position.

REFERENCES:
patent: 2230043 (1941-01-01), Moran
patent: 2579940 (1951-12-01), Lobrovich
patent: 2983176 (1961-05-01), Taylor
patent: 4048889 (1977-09-01), Finley

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