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:
Aug. 17, 2010
Filed:
Oct. 05, 2004
Applicant:
David L. Sipos, Lafayette, LA (US);
Inventor:
David L. Sipos, Lafayette, LA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 19/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
The spider has a body with a slip bowl of extended vertical length to enable gripping diameters having a gripping range of at least twenty percent greater than the minimum diameter to be gripped. A plurality of slips are distributed about the slip bowl surface, each slip carrying a plurality of dies vertically distributed on and affixed on the slip. Each die has a vee shaped surface, each face of the vee shaped surface provided with the equivalent of teeth to engage the outer surface of pipe to be gripped. The vee shaped dies, collectively, provide pipe contact lines about equally spaced about the outer periphery of gripped pipe.