Hole punching apparatus

Details Hole punching apparatus Hole punching apparatus

1997-09-25

1999-07-20

Rachuba, M.

Cutting

Means to drive or to guide tool

Magnet- or solenoid-actuated tool

83588, 83590, B26B 700

Patent

active

059243503

ABSTRACT:
Hole punching apparatus for punching holes in thin sheet material and having a punch mounted for reciprocating movement. The punch includes a punch stem, and an elastomeric bumper mounted on the punch stem. The bumper acts as a shock absorber when the punch is moved in a first direction to punch a hole in the thin sheet material and eliminates collision of metallic parts as the punch reaches the end of its stroke.

REFERENCES:
patent: 4821614 (1989-04-01), Fleet et al.
patent: 4872381 (1989-10-01), Stroms
patent: 5079983 (1992-01-01), Bruhn
patent: 5140879 (1992-08-01), Haj-Ali-Ahmadi et al.
patent: 5222012 (1993-06-01), Frankeny et al.
patent: 5233895 (1993-08-01), Coneski et al.
patent: 5296828 (1994-03-01), Feinstein, Jr. et al.
patent: 5365211 (1994-11-01), Carbaugh, Jr. et al.
patent: 5410233 (1995-04-01), Carbaugh, Jr. et al.

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