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. 31, 1977
Filed:
Mar. 15, 1976
Applicant:
Inventors:
Harold Kennedy, Jr, Birmingham, AL (US);
Robert M Graham, Birmingham, AL (US);
Assignee:
United States Pipe and Foundry Company, Birmingham, AL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
285236 ; 285 61 ; 285373 ;
Abstract
A coupling for joining the plain ends of pipe; specifically, plain ended, cast iron soil pipe or plastic drain, waste and vent piping. The coupling is particularly adapted to ease of construction and yet furnishes the ability to join and seal pipe and fittings of a given nominal diameter over the full range of their tolerances with excellent rigidity.