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. 31, 1995
Filed:
Nov. 14, 1994
Applicant:
Inventors:
Susan L Oldham, Torrance, CA (US);
Jordan L Rosengard, Woodland Hills, CA (US);
Assignee:
Hughes Aircraft Company, Los Angeles, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
1562757 ; 156335 ;
Abstract
Bonding of polystyrene foam details together to produce lost foam molds suitable for casting metallic details is accomplished by coating one of the two mating surfaces of the parts with a phenol-formaldehyde adhesive. The two parts are joined together and the mated assembly is placed in a microwave oven. Exposure of the assembly to microwave energy for a pre-selected period of time effects the bonding.