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:
Jul. 17, 2001
Filed:
Nov. 29, 1999
Mannesmann AG, Düsseldorf, DE;
Abstract
A press fitting for producing a nondetachable tight connection of smooth-ended pipes which has at least one portion receiving a toroidal sealing element and an adjoining cylindrical area extending in the longitudinal direction, and is provided with a shoulder acting as a stop for the pipe which can be pushed in or pushed on. The sealing element has, in the circumferential direction, at least one portion which is provided with a cross section diverging from the starting cross section in that a bulge extends along the circumference and along the cross-sectional plane and a recess facing the pushed in pipe extends radially in the cross section of the sealing element, the volume of the bulge compared with the starting cross section is at least equal to the volume of the recess lacking at the starting cross section and, before pressing, the recess of the sealing element forms a through-opening in the axial direction viewed in cross section.