The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 25, 1989
Filed:
Jan. 28, 1988
Asadoallah Hayatdavoudi, Lafayette, LA (US);
Premiere Casing Services, Inc., Lafayette, LA (US);
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.