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:
Aug. 26, 1997
Filed:
Mar. 03, 1993
Applicant:
Inventors:
Assignee:
Toyoda Gosei Co., Ltd., Nishikasugai-gun, JP;
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
138126 ; 138124 ; 138137 ;
Abstract
A reinforced hose includes an inner tubular rubber layer, a cover layer made of rubber, and at least two reinforcing thread layers, including an upper thread layer and a lower thread layer, disposed between the inner tubular rubber layer and the cover layer. At least the lower thread layer includes a polyester thread having the following physical properties: a tensile strength of 8 grams or more per a unit denier, an elongation of 10.+-.1.5%, and a loaded elongation of 2.7.+-.1.0% per a unit denier under 3-gram load. With this construction, the reinforced hose satisfies the fatigue resistance and volume expansion requirements simultaneously.