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:
Mar. 04, 1986
Filed:
Dec. 13, 1984
Arnold O DeHart, Rochester, MI (US);
James D Symons, Southfield, MI (US);
General Motors Corporation, Detroit, MI (US);
Abstract
An improved sealing surface configuration consists of a grid-like pattern of indentations formed into the surface, uniformly spaced to create a consequently uniformly spaced series of intermediate seal support pads. Each indentation includes a sloped wall converging with an adjacent pad in the direction of seal lip motion. The consequent hydrodynamic pumping action pumps lubricant out of the indentations and over the pads, creating a uniform lip supporting film to reduce friction. A method of deforming and machining the sealing surface to produce the configuration is also disclosed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile