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:
Oct. 23, 2007
Filed:
Jul. 17, 2000
Applicants:
Douglas P. Hart, Charlestown, MA (US);
Mary C. Boyce, Winchester, MA (US);
Hugo M. Ayala, Cambridge, MA (US);
Oscar C. Yeh, Berkeley, CA (US);
Inventors:
Douglas P. Hart, Charlestown, MA (US);
Mary C. Boyce, Winchester, MA (US);
Hugo M. Ayala, Cambridge, MA (US);
Oscar C. Yeh, Berkeley, CA (US);
Assignee:
Massachusetts Institute of Technology, Cambridge, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/127 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to seals having textured features. The present invention particularly relates to seals having contact surfaces with said features wherein the contact surface seals properly and is resistant to wear. The contact surface is able to perform in very severe environments, such as those found in earthmoving applications.