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:
Dec. 31, 1996
Filed:
Feb. 03, 1995
Noboru Matsushima, Fukushima, JP;
NOK Corporation, Tokyo, JP;
Abstract
A sealing structure for use in an automobile engine includes a retainer 1, a plurality of lips 2a, 2b, 2c, 2d and a metal ring 3. The retainer 1 has a main annular body made of a resin material. The lips 2a, 2b 2c, 2d are formed on the metal ring 3. After that, the metal ring 3 and the lips together are inserted in a die so as to produce the retainer 1 by an injection molding method. Thus, the retainer 1, the lips and the metal ring 3 are formed as an integral unit. Two inner lips 2a, 2d are positioned at an inner periphery of the ring 3 and contact a shaft 6 for the engine, while the other two outer lips 2b, 2c are made of a resilient or elastic material and positioned at an outer periphery of the ring 3 so that the main body of the retainer 1 supports the ring 3 and the inner lips 2a, 2d in a floating manner. (FIG. 2 A)