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.

Date of Patent:
Aug. 13, 1985

Filed:

Jul. 26, 1982
Applicant:
Inventors:

Robert D Williamson, St. Charles, MO (US);

Sidney M Furst, Maryland Heights, MO (US);

Assignee:

McDonnell Douglas Corporation, Long Beach, CA (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C / ; B65H / ; B32B / ;
U.S. Cl.
CPC ...
156212 ; 156 58 ; 156 59 ; 156191 ; 156194 ; 156265 ; 156297 ;
Abstract

Flat pattern equivalents for curved surfaces may be generated by developing a regular network of quadrilateral grid elements resembling a fish net which is mathematically smoothed onto the curved surface. Surface features such as boundaries and cutouts are mapped onto the network. The network is then transformed onto a flat mapping plane to form a grid in a manner analagous to smoothing a fish net mesh onto a flat surface. The surface features are then transformed to the flat surface grid. Individual plies or parts are then cut based upon the flat patterns. The plies or parts will conform to the curved surface exactly.


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