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. 21, 2002
Filed:
Dec. 17, 1999
William C. Fisher, Cuyahoga Falls, OH (US);
Michael R. Swails, Madison, OH (US);
Parker-Hannifin Corporation, Cleveland, OH (US);
Abstract
A flexible hose construction adapted for conveying fluids under relatively high internal pressures and capable of withstanding relatively high external pressures without collapsing. The construction includes a tubular first elastomeric layer having a first inner radial surface and a first outer radial surface, and a tubular second elastomeric layer having a second inner radial surface and a second outer radial surface. A helical reinforcement element is spiral wound over the first elastomeric layer as interposed between that layer and the second elastomeric layer. The element is wound at a predetermined pitch angle to define a series of turns each being spaced-apart from an adjacent turn to define an interstitial area therebetween. The first and second elastomeric members each extends into the interstitial area with the first outer radial surface of the first elastomeric member being bonded to the second inner radial surface of the second elastomeric member such that the spiral reinforcement member is encapsulated therebetween.