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:
Nov. 24, 1992
Filed:
Apr. 11, 1991
Akira Tsukamoto, Tokyo, JP;
Kaoru Ito, Tokyo, JP;
Calsonic Corporation, Tokyo, JP;
Abstract
A coupler is disclosed which is constructed of metal. The coupler comprises a cylindrical major part having a first cylindrical bore formed therethrough, the cylindrical major part being formed about its cylindrical outer surface with an externally threaded portion and a polygonal enlarged head; and a collar part having a second cylindrical bore formed therethrough, the second cylindrical bore being greater in diameter than the first cylindrical bore. The cylindrical major part and the collar part are coaxially arranged and integrated with each other to constitute a monobloc cylindrical structure. In practical use, the second cylindrical bore can serve as a silencer.