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:
Oct. 26, 1993
Filed:
Jan. 23, 1992
Applicant:
Inventor:
David M Kenworthy, Sheffield, GB;
Assignee:
Fusion Group PLC, Chesterfield, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
285 21 ; 285 23 ; 285 92 ; 285 93 ; 285199 ; 138 89 ;
Abstract
A closure for sealing the cutter guide tube of a pipe saddle fitting comprises a cap of thermoplastic material having a screw-threaded section (5) to enable releasable attachment of the closure to the tube, and a section (6) with a cylindrical surface incorporating a heating coil (8) to which a welding current is delivered to fix the closure permanently to the tube when the pipe joint has been completed and tested.