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:
Jun. 26, 1990
Filed:
Sep. 19, 1988
Applicant:
Inventors:
Richard L Danforth, Missouri City, TX (US);
William H Korcz, Houston, TX (US);
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
264 26 ; 264 37 ; 264153 ; 264171 ; 264522 ; 264322 ; 4251 / ;
Abstract
Laminated billets are made by extruding a plurality of sheets, cooling and stacking said sheets to form a stack, laminating a portion of said stack using radio frequency radiation, cutting out at least the laminated portion from the stack and returning the resulting individual webs to their respective sheet extrusion process.