Hand-held punch pliers

Details Hand-held punch pliers Hand-held punch pliers

1986-09-09

1991-06-11

Yost, Frank T.

Metal deforming

With cutting

By composite tool

30363, 30366, 72326, 72409, B21D 3102

Patent

active

050222538

ABSTRACT:
A hand-held punch pliers for simultaneously punching and connecting overlapping sheet metal as at the corners of overlapping ceiling tile grids and the like comprising a die handle to which a hollow die is affixed, a punch handle to which a punch is affixed. The punch is sized for insertion along an arcuate path into the die. A joint pivotably connects the die handle to the punch handle such that the die and the punch are moveable in arcuate paths about the joint into and out of punching engagement by manually squeezing and releasing the handles.

REFERENCES:
patent: 68687 (1867-09-01), Beck
patent: 764336 (1904-07-01), Bernard
patent: 824551 (1906-06-01), Levis
patent: 3842650 (1974-10-01), Hartmeister
patent: 3877280 (1975-04-01), Cornell
patent: 4291464 (1981-09-01), Garrett
"Pack a Punch" advertising brochure for HP18 Hole Punch and PL1 Punch Lock by Malco Products, Inc.
Instructions and Parts Lists for No. XX Hand Punch and No. 5 JR. Hand Punch by Roper Whitney Co.

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