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:
Nov. 14, 1989
Filed:
Nov. 10, 1987
Applicant:
Inventors:
Tetsu Kitami, Hadano, JP;
Jun Mito, Kanagawa, JP;
Assignee:
The Yokohama Rubber Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
138137 ; 138125 ; 138141 ; 138177 ; 138D / ; 4284747 ;
Abstract
A hose for transporting or otherwise handling refrigerants is disclosed which comprises an inner tube, an outer cover and a reinforcing layer disposed therebetween, the inner tube including a resinous inner wall and a rubbery outer peripheral wall. The inner peripheral wall is formed by a selected class of polymers having specified compositions, whereby the hose is rendered highly resistant to gas permeation and stress cracking and highly flexible and moisture-proofing.