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:
Apr. 20, 2004
Filed:
Jun. 07, 2001
Applicant:
Inventors:
Keri Jane Montague, Yeovil, GB;
Dennis Winston Pugsley, Yeovil, GB;
Assignee:
Westland Helicopters Limited, Yeovil, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 7/044 ;
U.S. Cl.
CPC ...
B29C 7/044 ;
Abstract
A method of moulding articles from layers of composite material being fibres impregnated with uncured resin, includes draping at least one layer of the composite material over a moulding tool, applying over the composite material layer or layers a membrane, and establishing an at least partial vacuum between the membrane and the moulding tool to consolidate the composite material, and wherein the membrane is made of a resilient material, and the method includes applying a force to the membrane to stretch the membrane over the moulding tool and maintaining the force whilst the at least partial vacuum is established.