Self-clearing punch with removable blade

Details Self-clearing punch with removable blade Self-clearing punch with removable blade

1984-07-30

1986-08-26

Meister, James M.

Cutting

With product handling means

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

83165, 83684, 83698, B26F 114

Patent

active

046075534

ABSTRACT:
A punch is disclosed having a hollow removable blade for punching an opening in a sheet of cardboard or other similar material. The blade has a beveled cutting edge about an inlet end. The diameter of the blade increases from the inlet end to the outlet end to prevent the slugs from becoming compacted in the blade.

REFERENCES:
patent: 1309157 (1919-07-01), Stockman
patent: 1718476 (1929-06-01), Messmer, Jr.
patent: 1942539 (1934-01-01), Deubel
patent: 1976992 (1934-10-01), Hinds
patent: 1993041 (1935-03-01), Singer
patent: 2087186 (1937-07-01), Freeman, Jr.
patent: 2187651 (1940-01-01), Jackson

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