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. 20, 2001
Filed:
Mar. 12, 1997
Koji Ouchi, Ibaraki, JP;
Tokuju Maeno, Ibaraki, JP;
Yoshihiro Namekawa, Ibaraki, JP;
Hideki Hagiwara, Ibaraki, JP;
Katsuhiro Aoyagi, Ibaraki, JP;
Norio Tanioka, Ibaraki, JP;
Kenji Hirose, Ibaraki, JP;
Hisanobu Kanamaru, Ibaraki, JP;
Hiroya Murakami, Kanagawa, JP;
Hitachi Cable, Ltd., Tokyo, JP;
Abstract
A method of manufacturing a hose coupling from an intermediate blank material, the hose coupling having an inner tube or tubular nipple portion, an outer tube or tubular sleeve portion and a head portion, all formed by plastic deformation from an intermediate blank material. The head portion is provided with a bore at an end opposite the end where the nipple portion and the sleeve portion are joined. In addition, the head portion is internally provided with a female thread and a conical seal portion.