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:
May. 12, 1998
Filed:
Apr. 02, 1996
Hiroyuki Takahashi, Okazaki, JP;
Nobuhiko Yamamoto, Okazaki, JP;
Toyoda Koki Kabushiki Kaisha, Kariya, JP;
Abstract
A pressurized fluid supply hose which conducts pressurized fluid from a pump to a fluid operating device is disclosed. A nipple is caulked on an outer surface of a spiral tube formed by spirally winding two band members. By a caulking process, the nipple is formed at its inner surface with a flat portion and two taper portions. The taper portions are successive to the flat portion and sloped to gradually increase the inner diameter toward both ends of the nipple. The outer surface of the spiral tube is also deformed along the flat portion and the taper portions to be secured to the inner surface of the nipple. The spiral tube with the nipple is inserted into a flexible rubber hose and fixed to the rubber hose at a position corresponding to the nipple. Since the nipple is caulked so that the caulked amount of the spiral tube is gradually decreased toward the both ends of the nipple, a large clearance is prevented from being made between two outer and inner band members. It is therefore possible to effectively perform the operation to reduce the pulsation in the pressurized fluid.