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:
Jan. 15, 1991
Filed:
Dec. 21, 1989
Michel Domer, Valdampierre, FR;
Hutchinson, , FR;
Abstract
Resilient joint with differentiated radial rigidity, of the type comprising a resilient material block (3) bonded between two tubular frames (1, 2) which are coaxial at rest, and which may be caused to pivot with respect to each other about their axis, said resilient material block (3) being then subjected to a shearing action under twisting, this block further including, along its periphery, variations of section so as to have unequal rigidity under compression in at least two different radial directions, characterized in that said variations of section are progressive, thus resulting in a thickness of resilient material (3)--measured in directions parallel to said axis--which is progressively variable between ridges (12) and hollows (13), without interruption of continuity.