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. 23, 1998
Filed:
Jul. 03, 1996
Applicant:
Inventors:
Martin C Hawley, East Lansing, MI (US);
Jes Asmussen, Jr, Okemos, MI (US);
Jianghua Wei, Raleigh, NC (US);
Trent A Shidaker, Brighton, MI (US);
Assignee:
Board of Trustees operating Michigan State University, East Lansing, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B / ; B29C / ;
U.S. Cl.
CPC ...
264404 ; 264101 ; 264478 ; 264490 ; 264491 ; 264489 ; 219746 ; 219759 ; 4251 / ;
Abstract
A method and apparatus for liquid thermoset resin or polymer molding using electromagnetic waves (particularly radiofrequency waves or microwaves), is described. The method and apparatus uses a metal mold (10, 212) with a cavity (401) for the molding as well as for confinement of the electromagnetic waves. Multiple low loss ports (A, B, C, D, E, p1, p2, p3) are provided for introducing the microwaves into the cavity.