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, 2016
Filed:
Mar. 21, 2014
Applicant:
Rolls-royce Plc, London, GB;
Inventor:
Bijoysri Khan, Derby, GB;
Assignee:
ROLLS-ROYCE plc, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 70/38 (2006.01); B29C 70/54 (2006.01); B29C 43/20 (2006.01); B29C 70/06 (2006.01);
U.S. Cl.
CPC ...
B29C 70/386 (2013.01); B29C 43/203 (2013.01); B29C 70/06 (2013.01); B29C 70/541 (2013.01); B29C 70/545 (2013.01); Y10T 428/24628 (2015.01);
Abstract
A method is described in which a composite tape or sheet is processed such that it has an improved drapability when applied to a former having a complex geometrical form. The tape or sheet is selectively perforated across its width as it is dispensed, with a suction force being subsequently applied over the tape's surface to thereby cause stretching of the tape. The degree of stretching varies across the width of the tape in proportion to the degree and local density of the selective perforations.