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:
Sep. 05, 1989
Filed:
Jun. 02, 1986
Tetsu Kitami, Hadano, JP;
Jun Mito, Kanagawa, JP;
The Yokohama Rubber Co., Ltd., Tokyo, JP;
Abstract
A hose for auomotive air-conditioning, transporting or otherwise handling refrigerants is disclosed which comprises an inner and an outer cover and a reinforcement disposed therebetween, the inner tube including an inner and an outer peripheral wall and a polyamide layer laminated therebetween. The inner and outer peripheral walls have a specified range of elasticity, and the polyamide layer has a specified thickness, whereby the hose is rendered highly resistant to heat, moisture-permeation and refrigerant-permeable, and flexible, and further free of damage from creeps or cracks from dynamic fatigue in the vicinity of metal fitting applied on the hose.