Stepping type expansion bolt extracting gun

Details Stepping type expansion bolt extracting gun Stepping type expansion bolt extracting gun

1988-10-31

1990-06-12

Schmidt, Frederick R.

Work holders

Operator supported

Handle manipulation for jaw actuation

29282, 29267, 254 21, 254 18, B25B 100

Patent

active

049326384

ABSTRACT:
A stepping type expansion bolt extracting gun, making use of a shifting mechanism to shift a gun barrel by means of a stepping operation, and an arresting and releasing mechanism to prevent the gun barrel from returning. A check plate is provided to control the gun barrel to shift back to the original position. By means of said arrangement, the present invention is applicable to extract the live spindle of an expansion bolt in a labor-saving and most efficient way to replace the linking rod type actuation of the prior art.

REFERENCES:
patent: 3096975 (1963-07-01), Irwin
patent: 4311069 (1982-01-01), Walker
patent: 4627420 (1986-12-01), Katz

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