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. 20, 1989
Filed:
Sep. 04, 1986
Stephen A Denman, Centerville, OH (US);
Other;
Abstract
A universal joint comprising a pair of coupling devices each including a generally cylindrical portion having an extension at one end including a plurality of projections which are outwardly divergent and circularly spaced. Such projections of each coupling device are arranged to have their successively adjacent side surfaces formed to define therebetween spaces the bounding sides of which are divergent. In the assembled relation of the coupling devices the projections of the respective extensions thereof are relatively rotatively displaced and interfit and the projections of one thereof are respectively projected in, through and beyond the spaces defined between the bounding sides of the projections of the other of said extensions. The projections of said coupling devices as so interrelated are formed and spaced to variously have a slip, sliding and longitudinal and lateral overlapping relation during use of the joint of which they form a part the nature of which is such to induce a self balancing and biasing of the parts of the joint to the positions in which they are set for use thereof.