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. 31, 1993
Filed:
Feb. 04, 1992
Applicant:
Inventors:
David J Parker, Newtown, CT (US);
Dean Nguyen, Stamford, CT (US);
Assignee:
United Technlogies Corp., East Hartford, CT (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29D / ; B28B / ;
U.S. Cl.
CPC ...
264103 ; 156172 ; 264257 ; 264275 ; 264314 ; 4161 / ;
Abstract
A method for fabricating a composite swashplate ring utilizing a thermoplastic expandable mandrel which is rigid during braiding, yet softens after resin impregnation to allow expansion in a mold to increase fiber consolidation. Preferably, the mandrel accepts the incorporation of preformed structures prior to braiding with the braided mandrel suitable for incorporation in a resin transfer mold such that a dry fiber braided article having preformed structures may be impregnated with resin and consolidated to produce a net-shaped composite swashplate ring without machining.