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. 07, 2000
Filed:
Apr. 09, 1996
Ronald H Nelson, Salt Lake City, UT (US);
Dimitrije Milovich, Salt Lake City, UT (US);
Radius Engineering, Inc., Salt Lake City, UT (US);
Abstract
A method for manufacturing a composite shaft comprising providing an impregnated fibrous material comprising a fiber impregnated with a hardenable polymeric material, forming an impregnated fiber preform by wrapping the impregnated fiber material around a shaped pressurizable bladder, the bladder having outer dimensions to form a preform dimensioned closely to the final dimensions of the shaft and dimensioned to allow placement of the assembly of the bladder and the impregnated fiber preform into female tooling, placing the assembly of the bladder and the impregnated fiber preform into the female tooling, pressurizing the bladder to press the impregnated fiber against the tooling, and heating the tooling to form a hardened composite of the polymeric material and the fiber while maintaining pressure in the bladder, releasing the pressure in the bladder, and removing the bladder from the interior of the shaft.