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. 19, 1995
Filed:
Nov. 07, 1994
Brian Harper, Hitchin, GB;
Victaulic PLC, Hertfordshire, GB;
Abstract
A pipe coupling comprises an annular sleeve member arranged in use at a free end thereof to overly an end of a plain ended pipe to be connected by the coupling, the free end of the sleeve member being inclined radially outwardly towards its end; an elastomeric annular sealing gasket disposed at least partly within the inclined free end of the sleeve member and held in place by an annular compression flange member; the compression flange having a skirt portion, axially outwardly, and an axially inwardly extending collar portion radially outwardly overlying the free end of the sleeve member; the gasket including, when in a relaxed condition, an axially outwardly directed rear surface arranged in use to engage an axially inwardly directed face of the annular radially inwardly extending portion of the flange member, a radially inner surface extending generally axially inwardly of the coupling from a gasket heel to a gasket toe, and an inclined surface extending generally between the two above mentioned surfaces of the gasket member and arranged in use to engage the inclined surface of the free end of the annular sleeve member; the inclined surface of the gasket being, in the relaxed condition, at a lesser angle than the inclined surface of the free end of the sleeve member with respect to the longitudinal axis of the coupling, and the rear surface of the gasket being slidable radially inwardly on the annually inner surface of the skirt portion of the flange, radial inward movement or tendency thereof to move being limited by engagement between shoulder portions on the rear face of the gasket and the axially inner surface of the flange member; and tightening elements associated with the compression flange member for applying in use the compressive force on the gasket whereby to ensure sealing of the gasket.