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:
Dec. 24, 1991
Filed:
Jul. 14, 1988
Jean-Pierre Gautier, Aulnay S/Bois, FR;
Bendix France, Drancy, FR;
Abstract
The invention relates to a process for the assembly, by crimping, of a cover (10) to a cylinder (12), in which the cylinder (12) has a rim (18) extending outwardly and the cover (10) has a border of which radial shoulder (14) is substantially parallel to the rim (18) and a cylindrical projection (16), in which a plurality of uniformly distributed oblong slots (22) has been made, is perpendicular to the rim which it surrounds. The cylinder (12) is fitted into the cover (10) after a deformable gasket (19) has been arranged between them and other components of the finished assembly have been enclosed, the cover (10) and cylinder (12) having previously been covered with a protective coating. According to the invention, the process involves the steps of the cover (10) and cylinder (12) being pressed against one another so as to crush the gasket (19), with zones of less resistance (24) being located between boundaries (25) of the slots ( 22) and a free edge of the cover (10) being stamped in such a way that the middle parts of the stamped boundaries (25) move away from a plane (Y) parallel to the rim (18) and passing through the ends of the slots (22), and pressure tending to crush the gasket (19) being released. The invention is used for the manufacture of brake boosters for vehicles.