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:
Dec. 27, 2011
Filed:
Feb. 28, 2008
Applicants:
Henri Azibert, Windham, NH (US);
Steven Bernoth, Billerica, MA (US);
Inventors:
Henri Azibert, Windham, NH (US);
Steven Bernoth, Billerica, MA (US);
Assignee:
A.W. Chesterton Company, Woburn, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J 15/00 (2006.01); F16J 15/34 (2006.01);
U.S. Cl.
CPC ...
Abstract
A dual seal accommodates radial and axial movement, and accommodates positive and negative pressure differentials, when in sealing engagement about a rotating shaft.