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. 16, 1982
Filed:
Mar. 31, 1980
Gary G Hegler, Chesaning, MI (US);
Kenneth L Westercamp, Saginaw, MI (US);
General Motors Corporation, Detroit, MI (US);
Abstract
A universal joint has a housing which includes an attachment bore which opens into a housing chamber via a counterbore at the inner end of the attachment bore. A seal vent subassembly has an outer rim press which is fitted in the counterbore to form an outer vent chamber which is intersected by a vent hole which extends through the housing wall. The seal vent includes a seal disc which seals the inner end of the attachment bore and a vent disc forms an inner vent chamber in conjunction with the seal disc. The vent disc has a hole establishing communication between the housing chamber and the inner vent chamber, and the rim has holes establishing communication between the inner vent chamber and the outer vent chamber.