Brakes – Rod
Patent
1988-01-28
1989-04-25
Halvosa, George E. A.
Brakes
Rod
285144, 2941022, 403377, 188244, 188251M, B65H 5910
Patent
active
048239194
ABSTRACT:
A support construction including a supporting bowl to receive a plurality of circumferentially disposed slips to engage and support a tubular member. The slips include at least one pair of slip inserts that are carried in axial grooves provided on the innermost surfaces of the slips, the inserts provided as a pair of cooperating, interengaging members, the innermost slip insert relative to the tube having inwardly extending teeth to engage the tube outer surface. The inner and outer slip inserts are made from materials having a different modulus of elasticity, the modulus of elasticity of the innermost slip insert, relative to the tube axis, having a modulus of elasticity from about 3 to about 7 times greater than that of the outer slip insert, relative to the tube axis.
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Halvosa George E. A.
Premiere Casing Services, Inc.
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