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:
Feb. 07, 1989
Filed:
Apr. 08, 1987
Katsuhide Fujisawa, Kanagawa, JP;
Toshimasa Takanaka, Kanagawa, JP;
Hiroo Buseki, Kanagawa, JP;
Masakatsu Takahashi, Kanagawa, JP;
Nippon Reinz Co., Ltd., Kanagawa, JP;
Abstract
A joint has a first flange rigidly secured to the outer peripheral surface of an end portion of a first pipe and a second flange rigidly secured to the outer peripheral surface of an end portion of a second pipe. The first and second flanges are aligned with each other and joined together by nuts and bolts so that the first and second pipes are connected together and maintained in a hermetically sealed state by a closed loop-shaped sealing member clamped between the first and second flanges. The sealing member is fitted on the end portion of the second pipe which slightly projects from the second flange. The sealing member is formed by wrapping a thin metal sheet around heat resistant material and has an inner diameter which is equal to or slightly larger than the outer diameter of the second pipe. A frusto-conical surface aligned with the sealing member defines a portion of the inner peripheral surface of the first flange.