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:
Oct. 08, 1991
Filed:
Mar. 26, 1990
Applicant:
Inventors:
Max R Runyan, Huntington Beach, CA (US);
Carolyn Salmon, Long Beach, CA (US);
Scott D Silliman, Huntington Beach, CA (US);
Assignee:
McDonnell Douglas Corporation, Long Beach, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22F / ; B21D / ;
U.S. Cl.
CPC ...
148 / ; 148 / ; 156 79 ; 228157 ; 228193 ; 420902 ; 428178 ; 428593 ; 428594 ;
Abstract
A superplastically formed and diffusion bonded structure formed with two or more sheets and upset forging the material at the perimeter to provide the expulsive material between the inner most sheets so as to close the entrance angle formed between the expanded sheets at the line where the surfaces of the split forming fixture engage and the method of producing this structure. The upset forged material insures the structural integrity of the outside perimeter structure after removal of the flange which is normally present as a result of the holding fixture.