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:
Aug. 16, 1994
Filed:
Jul. 31, 1991
Hiroshi Horikawa, Yokohama, JP;
Yoshikazu Tsuzuki, Yokohama, JP;
Hisashi Mogi, Yokohama, JP;
Kazuo Matsubara, Yokohama, JP;
Furukawa Electric Co., Ltd., Tokyo, JP;
Abstract
The present invention discloses a diameter-reducing member joint device, where connecting a first member to be connected as the boss of a flange joint or composed of relatively large-diameter pipes to a second member to be connected and having an outer diameter smaller than that of the first member, characterized by interposing a diameter-reducing pipe joint, which has at one end a large-diameter connection portion connected to the first member and also at the other end a small-diameter connection portion connected to the second member, between the first and second members to be connected, and by using a ring-like or cylindrical heat-shrinkable member made of a heat-shrinkable type of shape memory alloy. Namely, the large-diameter connection portion of the diameter-reducing pipe joint and the first member are connected to each other by tightening up due to the shape recovery force when the heat-shrinkable member is thermally shrunken, and the small-diameter connection portion at the other end of the diameter-reducing pipe joint is connected to the second member in a similar manner, so that the first member having a large diameter is connected to the second member and having an outer diameter smaller than that of the first member in a simple and reliable manner.