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. 21, 1988
Filed:
Apr. 23, 1986
Bernhard Nysten, Aachen, DE;
William Prym-Werke GmbH. & Co. KG., Stolberg, DE;
Abstract
A snap fastener wherein the female component has an end wall with a rim extending from one side of the end wall and a centrally located elastically deformable female coupling element provided on a frustoconical central portion of the end wall. The central portion has a concave surface at the other side of the end wall. The male component has a mushroom-shaped male coupling element which can be forced, not unlike an arrowhead, the female coupling element from the concave side of the central portion of the end wall. The force which must be applied to extract the male coupling element from the female coupling element is several times the force which is required to insert the male coupling element because the central portion of the end wall yields more readily in a direction toward the one side of the end wall.