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:
Mar. 03, 1981
Filed:
Apr. 10, 1979
W Sidney Aitken, Burbank, CA (US);
Russell J Sarno, Burbank, CA (US);
Other;
Abstract
A pipe coupling particularly adapted for use with plastic pipe carrying fluid at high pressure has a body section from which there extend in the axial direction, two concentric sleeve sections with a concentric annular space between them. The end of a pipe to be coupled is fitted over the internal sleeve and an annular wedge is placed in the annular space between the pipe and the external section. A nut having an annular sleeve is threaded to the external section so that the annular nut sleeve enters the annular space and engages the wedge. Torquing of the nut urges the wedge along a camming surface into tight engagement with the pipe, thus deforming it to prevent its withdrawal from the coupling. The tightness of the coupling is enhanced by variation of the diameter of the internal sleeve in the vicinity of the wedge and by ridges on the internal sleeve into which material of the pipe is forced by the wedge to flow.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile