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:
May. 12, 1992
Filed:
Apr. 10, 1991
Craig I Walker, Artarmon, AU;
Warman International Limited, New South Wales, AU;
Abstract
A rotary mechanical seal for a rotating shaft passing into a pressure vessel, the seal having stationary and rotating seal rings (12) with at least one of the rings (12) supported in an axially biased holder (9), characterized by an elastomeric annular seal (11) held in a groove, which groove is so designed as to obviate clogging or crystallizing in the gap between the seal face holder (9) and the housing (10). the groove has a protrusion located on its outer edge which has sloped inner and outer faces to cooperate with the annular elastomeric seal (11) so that the seal protrudes past or is flush with the edge.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile