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:
Sep. 12, 1989
Filed:
Aug. 22, 1988
Applicant:
Inventor:
O'Dell Brinegar, Middletown, OH (US);
Assignee:
Contech Construction Products Inc., Middletown, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
285 55 ; 285226 ; 285373 ; 285419 ; 285424 ; 285903 ; 29454 ;
Abstract
A rigid metal pipe coupling for joining pipe sections comprises a sheet of metal having opposite edges for rolling into a generally cylindrical rigid sleeve. The metal sheet has an integrally formed expansible and contractible means formed intermediate the ends of the sheet, said means is adapted after rolling into said sleeve and under the action of a predetermined force to expand and contract thereby allowing said sleeve to permanently bend and accommodate a desired angle of connection between pipe sections.