Rigid clamp

Details Rigid clamp Rigid clamp

1993-04-16

1994-07-12

Bishop, Steven C.

Chucks or sockets

Expanding

Axially moving actuator

166206, 175230, 269 481, 279 219, B23B 3140

Patent

active

053281802

ABSTRACT:
The invention relates to a clamp mechanism that can be used to attach or temporarily support objects inside of tubular goods. The clamp mechanism can also be modified so that it grips objects. The clamp has a self-centering feature to accommodate out-of-roundness or other internal defections in tubular objects such as pipe. A plurality of clamping shoes are expanded by a linkage which is preferably powered by a motor to contact the inside of a pipe. The motion can be reversed and jaw elements can be connected to the linkage so as to bring the jaws together to grab an object.

REFERENCES:
patent: 1337017 (1920-04-01), Kenworthy
patent: 2323039 (1943-06-01), Hill
patent: 2711862 (1955-06-01), Kerr
patent: 4061289 (1977-12-01), Miura et al.
patent: 4763850 (1988-08-01), Hausner
"Standard Handbook of Machine Design" by Shigley & Mischke-p. 39.7.

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