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US 5,333,925 AGranted
Containment apparatus for manual pipe tongs
OwnerLarry Foley, Jr.inventor
Life of this patent
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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.
Claims10
A girdle for pipe tongs comprising:
- a) a mechanical pipe tong having a body and a pivotal arms;
- b) at least one energy-absorbing means, attached to one side of said body;
- c) a flexible member, encircling said tong arm attached at one end to said energy absorbing means with the opposite end attached to said tong body opposite said energy-absorbing means;
- and
- d) a quick-release latch means integral with said flexible member, for parting said flexible member.
2 more elements
A mechanical pipe tong retainer for use in collectively containing dismembered components during fragmentation comprising:
- a) a mechanical pipe gripping apparatus, for use in separating threaded tubulars, having a body portion and a pair of pivotal arms, selectively movable between a normally open position to a closed gripping position around a pipe joint;
- b) a flexible member at least partially encircling the external perimeter of said pivotal arms when in the closed position;
- c) a biasing means for connecting the ends of said flexible member to said body portion;
- and
- d) a coupling means integral with said flexible member for parting said flexible member during positioning of said gripping apparatus around said pipe joint.
2 more elements
Dependencies are inferred from the claim text.