RAY C JOHNSON
Engineering in Webster, NY
License number
Massachusetts 19182
Expiration Date
Jun 30, 1996
Type
Mechanical Engineer
Address
Address
Webster, NY 14580
Professional information
Method Of And Machine For Forming Compound Curvatures In Metal Sheets By Drawing
US Patent:
5086635, Feb 11, 1992
Filed:
Dec 10, 1990
Appl. No.:
7/624982
Inventors:
Charles Creaser - Lady Lake FL
Ray C. Johnson - Webster NY
Ray C. Johnson - Webster NY
Assignee:
Chu Associates, Inc. - Littleton MA
International Classification:
B21D 506
US Classification:
72176
Abstract:
An improved method of and apparatus for forming sheet material into compound curves by drawing, in which critical positioning, dimensioning and relative curvatures of forming bead stages are provided for such curvatures as sectors of paraboloidal antenna reflectors and other compound curve sheets.