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. 05, 1993
Filed:
Mar. 18, 1991
Katsushi Washizu, Numazu, JP;
Abstract
A joint for coupling small-diameter pipes, comprises a body including a cylindrical joint wall having a bore, and a cylindrical wall defining a stepped enlarged chamber in communication with the bore and receiving seals and a bushing behind the seals, the cylindrical wall having a rear end extending outwardly to provide a flange, and the bushing having an open end, a collar having a rear end extending inwardly to provide a locking wall and a front end extending inwardly to provide a engagement wall engaged with the flange, and a plurality of resilient retainer each having one end engaged with the open end of the bushing and the other end bent to a V-shape to provide a pawl. When coupling is effected, a bent portion of the retainer is brought into engagement with the locking wall, and the pawl is brought into engagement with an annular projection wall formed on one end of a pipe inserted into the enlarged chamber.