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. 21, 2012
Filed:
Aug. 07, 2009
Applicants:
John Lemke, Sacramento, CA (US);
Lars Pedersen, Davis, CA (US);
Inventors:
John Lemke, Sacramento, CA (US);
Lars Pedersen, Davis, CA (US);
Assignee:
Geodaq, Inc., Sacramento, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 17/10 (2006.01); E21B 47/022 (2006.01);
U.S. Cl.
CPC ...
Abstract
A centralizer for an instrument such as an in-place inclinometer is described. The centralizer has a clamp with an inner receptacle configured for coupling to the instrument housing, and a plurality of elongate fingers extending from the clamp that center the instrument in the casing. The fingers carry rollers that fit into grooves in the instrument casing. The fingers are arcuate and provide a spring-like contact force that causes the rollers to abut the instrument casing and stabilize the instrument.