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:
Apr. 21, 1998
Filed:
Jun. 17, 1996
Applicant:
Inventor:
William O Skinner, Fort Wayne, IN (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
277-95 ; 277 11 ; 277152 ; 285 23 ;
Abstract
A sealing assembly and method in which an elastomeric sealing sleeve is stretched over a strippable core, one end of the sleeve sealed to a hole in manhole structure either by casting in or by an expandable clamp. A pipe is inserted in the core and the core stripped out by tearing along a helical preweakening to allow the other end of the sleeve to constrict onto the pipe.