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:
Feb. 23, 1999
Filed:
Apr. 02, 1997
Applicant:
Inventors:
Donald R Cohee, Felton, DE (US);
Edgar G Ashmead, Lewes, DE (US);
Assignee:
ILC Dover, Inc., Frederica, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428102 ; 428174 ; 156 93 ; 264 31 ; 264 36 ; 264152 ; 264259 ; 264267 ; 264269 ;
Abstract
Rigidifiable composites are formed by stitching a reinforced B-stage resin sheet stock to form a three-dimensional preform. The preform is subsequently rigidified by initiating final cure of the resin. Molded articles, inflatable and other structures, such as, tank, tunnel and sewer liners are some of the typical structures which can be formed by the methods of the invention. Control of thread count, thread tension and thread spacing can be used to consolidate multi-ply or layered preforms, which, upon cure, can have up to 90% of the load carrying capacity of compression molded fiber reinforced articles.