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:
Apr. 30, 1991
Filed:
Dec. 20, 1989
Mickey L Love, Oklahoma City, OK (US);
Douglas V Massey, Oklahoma City, OK (US);
Dana Corporation, Toledo, OH (US);
Abstract
An improved bearing for use in a ball and socket joint is disclosed. The bearing is generally cylindrical in shape, having a recess formed in one end thereof. The recess defines a semi-spherical bearing surface adapted to engage and support a head portion of a ball member of the joint. A plurality of lubricant passageways are formed through the bearing. Each of the passageways extends axially from the semi-spherical bearing surface to an annular channel formed in the opposite end of the bearing. A plurality of grooves are also formed in the opposite end of the bearing. The grooves extend radially inwardly from the channel to a central recess formed in the opposite end of the bearing. The channel functions as a reservoir for lubricant, thereby permitting the joint to be used without frequently re-injecting lubricant therein. An annular bead is formed about the circumference of the channel to provide a seal which prevents lubricant from escaping from the joint.