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. 08, 1990
Filed:
Dec. 27, 1988
Applicant:
Inventors:
Earl P Carley, New Kensington, PA (US);
Philip L Schell, Pittsburgh, PA (US);
Assignee:
PPG Industries, Inc., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428131 ; 428285 ; 4285428 ;
Abstract
A novel preform screen for use in producing preforms for structural liquid composite molding is described. The screen has a raised edge provided around the screen to catch fibers as they are directed toward the screen surface during production of a preform. The preforms produced have a perimeter which is composed of chopped rovings oriented parallel to the edges of the preform.