Fluid-operated pipe clamp

Details Fluid-operated pipe clamp Fluid-operated pipe clamp

1993-12-03

1995-08-01

Cherry, Johnny D.

Handling: hand and hoist-line implements

Hook, hoistline, or grab type

Locking device

138 99, 294 661, 294106, 901 37, 901 39, F16L 55168

Patent

active

054374898

ABSTRACT:
This invention provides a hydraulically-actuated pipe clamp for sealing leaks in pipe lines located in remote or hazardous places. The pipe clamp consists of a split block having hinged jaws that may be clamped around a pipe by a hydraulic actuator. The jaws are then mechanically latched in place so that the clamp will remain closed after the hydraulic source has been disconnected.

REFERENCES:
patent: 2684166 (1954-07-01), De Jarnett
patent: 2695189 (1954-11-01), Chrisman et al.
patent: 3744822 (1973-07-01), Arnold
patent: 4441328 (1984-04-01), Brister
patent: 4441749 (1984-04-01), Blaschke et al.
patent: 4535822 (1985-08-01), Rogers
patent: 4756338 (1988-07-01), Guyatt et al.
patent: 5297584 (1994-03-01), Goad et al.

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