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:
Sep. 30, 2014
Filed:
Oct. 26, 2009
Applicant:
Jan Erik Pedersen, Kristiansand S, NO;
Inventor:
Jan Erik Pedersen, Kristiansand S, NO;
Assignee:
National Oilwell Norway AS, Kristiansand S, NO;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16F 7/12 (2006.01); E21B 41/00 (2006.01); E21B 19/00 (2006.01); E21B 19/14 (2006.01);
U.S. Cl.
CPC ...
E21B 19/14 (2013.01); E21B 41/00 (2013.01); E21B 19/00 (2013.01);
Abstract
A mouse hole damper device positioned at the bottom portion of a mouse hole pipe, the mouse hole damper being arranged to dampen an impact from an object falling in the mouse hole pipe, and the mouse hole damper including a material which has been worked into forming walls around elongated openings, and the material being arranged in such a way that the openings are substantially parallel to the longitudinal axis of the mouse hole pipe.