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:
Sep. 19, 1978
Filed:
Sep. 02, 1977
Claude Abbes, Saint Etienne, FR;
Andre Gournier, Saint Priest En Jarez, FR;
Christian Rouaud, Bourg Saint Andeol, FR;
Raymond DE Villepoix, Donzere, FR;
Commissariat a l'Energie Atomique, Paris, FR;
Abstract
Flexible annular joint having on the one hand a central core constituted by a helical spring made from metal wire with contiguous coils, which is closed on itself and in the inoperative state has the shape of a continuous ring, and on the other hand at least one envelope surrounding the central core and having in the inoperative state a cross-section formed by a curve which is not closed on itself. The internal helical spring comprises at least one continuous wire whose cross-section is a circular segment whose angle at the center is between 180.degree. and 360.degree., the chord of said segment producing the outer surface of said spring.