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:
May. 26, 1992
Filed:
Aug. 24, 1990
Bernhard Nysten, Aachen, DE;
William Prym-Werke GmbH & Co. KG, Stolberg, DE;
Abstract
A button wherein the deformable shank of a rivet (which carries the enlarged portion that is to pass through a buttonhole) must be caused to penetrate through a layer of textile or other carrier material and to thereupon enter a retaining device having a portion which deforms the free end portion of the rivet. The rivet is part of the male component of a universal joint which further comprises a socket secured to the rear surface of the enlarged portion. The retaining device has a shallow metallic cup- or pan-shaped enclosure for the rear portion of an elastically deformable insert which is deformed by the shank while the shank penetrates into and is deformed by the enclosure whereby the insert blocks extraction of the deformed shank from the enclosure and sealingly engages the adjacent rear side of the carrier material to prevent the flow of air and/or water through the hole which is formed in the carrier material as a result of penetration of the shank through the carrier material on its way into the retaining device. The insert fills the enclosure and is maintained in stressed condition when the deformation of the shank is completed.