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:
Jul. 30, 1996
Filed:
Jun. 07, 1994
Steven O Luzsicza, Huron, OH (US);
Clevite Elastomers, Milan, OH (US);
Abstract
A steel inner tube and thermoplastic outer tube are placed in an injection mold apparatus and a thermoplastic intermediate tube is molded between the inner and outer tubes. The intermediate tube shrink fit locks to the inner tube and shrinks relative to the outer tube to provide a selected journal-bearing torque relation therebetween. Projections and mating recesses on the inner tube and intermediate tube facilitate locking the intermediate tube to the inner tube without adhesives or other bonding agents. One or more thrust rings and recesses are formed on the mating surfaces of the outer tube and intermediate tube to preclude axial relative displacement therebetween in response to axial thrust loads. An elastomeric tubular member (or other known bushing construction) is secured over the outer tube and an outer steel tube is over the elastomeric member to provide an enhanced control arm bushing with a predetermined torque response for automotive suspension systems.