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. 11, 1999
Filed:
Apr. 21, 1997
Hiroyuki Aihara, Kanagawa, JP;
Eizo Suyama, Tokyo, JP;
Calsonic Corporation, Tokyo, JP;
Abstract
A coupling structure between a cylindrically united end portion of a breeches pipe and a cylindrical end portion of a tubular pipe. The cylindrically united end portion has at diametrically opposed portions thereof respective grooves each extending axially from a circular end of the cylindrically united end portion. The cylindrical end portion of the tubular pipe has at diametrically opposed portions thereof respective slots each extending axially from a circular end of the cylindrical end portion. The cylindrically united end portion of the breeches pipe is inserted into the cylindrical end portion of the tubular pipe in such a manner that grooves are mated and merged with the slots respectively. The circular end of the tubular pipe is entirely welded to an outer surface of the cylindrically united end portion of the breeches pipe and a periphery of each slot is entirely welded to the corresponding groove to achieve a hermetic sealing therebetween.