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:
Feb. 09, 1982
Filed:
Jan. 25, 1980
Applicant:
Inventor:
Rosemary Rourke, Newton, CT (US);
Assignee:
Norfield Corporation, Danbury, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B29C / ;
U.S. Cl.
CPC ...
428116 ; 156197 ; 156292 ; 1563066 ; 1563082 ; 1563096 ; 264164 ; 264248 ; 264249 ; 264259 ;
Abstract
A method of bonding a sheet of hard to bond thermoformable material to a core made of expanded thermoformable material is disclosed. The sheet of thermoformable material is heated to its glass transition temperature and then pressed into voids in the core forming a mechanical bond in addition to the chemical bond.