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:
Jan. 28, 1992
Filed:
May. 06, 1991
Osamu Akamatsu, Akashi, JP;
Nippon Air Brake Co., Ltd., Kobe, JP;
Abstract
A tube seat installation device having a piping connecting part of a special coupling joint being attached on one side of the input piping opening or the output piping opening of the fluid pressure valve while at the same time having a cylindrical part of the special coupling joint fitted into a connecting hole of the tube seat via an O-ring sealing element. The piping connecting part of the special coupling joint is attached to the other side of an outlet piping opening or an inlet piping opening. The cylindrical part is fitted into the introduction part of the hollow body via an O-ring sealing element, or the introduction part of the hollow body is attached to the piping opening via an O-ring sealing element. A flange part of this hollow body is faced and fixed to another connecting hole of the tube seat via O-ring sealing element to which a fluid pressure valve is fixed by being sandwiched by the hollow body. A fluid path runs in the vicinity of the fluid pressure valve through a passageway so that it becomes possible to accommodate the flanges of different types which can be installed on a tube seat simply by using standard and inexpensive fluid pressure valves which have a piping opening fitted for a screw thread connection, and which can be mass-produced as a standard product.