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. 09, 2001
Filed:
Mar. 25, 1999
Thomas Pferdehirt, Wuppertal, DE;
YKK Europe Ltd., London, GB;
Abstract
The press fastener comprises, in addition to a press fastener ball fixed to a first carrier web, a press fastener eyelet firmly connectable to a second carrier web by a rived shaft emanating from a rivet cap and passing through a central perforation. A simple construction involving low manufacturing cost, with high durability, i.e. a high number of closing and opening cycles, can be achieved if the press fastener eyelet is formed by a substantially annular, plastic moulding having the central perforation and comprising a round ball reception area and a temporarily widenable locking area which tapers towards the insertion end for the press fastener ball and extends roughly coaxially to the ball reception area. the said plastic body comprises a ring flange-like outer edge, to which is connected in axially displaced manner the central area having the central perforation. Moreover, an all-round groove increasing the resilient action of the locking area is provided in the ring flange-like outer edge of the plastic body radially outside the locking area, with the locking area being constructed polygonally. The plastic moulding may advantageously be moulded from POM (polyoxymethylene).