Containment apparatus for manual pipe tongs

Details Containment apparatus for manual pipe tongs Containment apparatus for manual pipe tongs

1993-02-01

1994-08-02

Kramer, Dean J.

Handling: hand and hoist-line implements

Grapple

Load shifting

2941022, E21B 1916

Patent

active

053339258

ABSTRACT:
The present invention relates to a method and apparatus for containing and restraining the fragmentation of the jaw portion of a set of mechanical pipe tongs, under stress load conditions. The apparatus comprising a flexible belts or the like surrounding the jaws of the tongs like a girdle and attached to an energy absorber located at either side of the tongs' body.

REFERENCES:
patent: 1501962 (1924-07-01), Montgomery
patent: 3675278 (1972-07-01), Powell
patent: 4661038 (1987-04-01), Kohler et al.
patent: 4741642 (1988-05-01), Carlton
patent: 4822200 (1989-04-01), Berner
patent: 5020844 (1991-06-01), Pickrell

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