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:
Jun. 30, 1981
Filed:
Oct. 11, 1979
Gordon K Butler, Columbus, IN (US);
Robert T Jefferson, Crothersvill, IN (US);
Cummins Engine Company, Inc., Columbus, IN (US);
Abstract
This disclosure relates to a seal which is particularly suited for use in a coolant pump of an internal combustion engine. The seal parts are subjected to high rotational torques during operation of the pump, and the seal parts are constructed and assembled in such a manner as to accommodate the rotational torques. The seal includes a flexible bellows having a composition which withstands the engine coolant on one side and oxidation on the other side, and has ribs which strengthen it. The seal faces are constructed of a material and have dimensions to reduce the magnitude of the rotational torques. The seal parts are secured together so as to prevent them from being pulled apart by the rotational torques, adhesives being used for this purpose which withstand the engine coolant.