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:
Jan. 15, 1980
Filed:
Nov. 13, 1978
Applicant:
Inventor:
Joseph Antonini, Chicago, IL (US);
Assignee:
Dana Corporation, Toledo, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
277134 ;
Abstract
An improved liquid to gas seal is disclosed for a bi-directional rotatable shaft. The seal is of the annular lip type and has a circular sealing edge which engages the shaft. The gas side of the seal is provided with an annular bead parallel to and spaced from the sealing edge and with a plurality of asymmetrical ribs which efficiently pump liquid escaping past the sealing edge back to the liquid side of the seal.