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:
May. 29, 2001
Filed:
Dec. 04, 1998
Howard W. Hall, Shawnee, OK (US);
Uponor Innovation AB, Fristad, SE;
Abstract
A service riser,comprises a steel jacket,around a polyethylene pipe,which terminates in the riser at a transition zone,The transition zone,comprises a retainer sleeve,inserted in the end of the pipe,and sealed thereto by an O-ring,The retainer sleeve,extends out of the pipe,and is provided with grooves,separated by lands,on which an elastomeric sealing band,is received. The tube,is swaged down forming a swage groove,around the retainer sleeve,compressing the gasket,to a large extent over the lands,and a lesser extent over the grooves,the ideal compression for the gasket,being arranged somewhere between such degrees of compression. By this means the ideal degree of compression at some regions of the gasket,forming an annulus around the retainer sleeve,is guaranteed, despite tolerances in the dimensions of the tube,(especially) as well as the band,and sleeve