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:
Mar. 03, 1992
Filed:
Dec. 07, 1990
Applicant:
Inventor:
Roberto Rosa-Miranda, Dover, NH (US);
Assignee:
Davidson Textron Inc., Dover, NH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B26D / ;
U.S. Cl.
CPC ...
83171 ; 219 68 ; 219221 ; 425292 ; 425298 ;
Abstract
A hot knife assembly for cutting excess organic polymeric material from a thermal forming mold includes a blade-like knife in the form of a thin flat plate having an inner edge connected to a heater and an outer edge with a cutting surface thereon. The thin flat plate has two flat surfaces substantially encapsulated by a refractory wedge. The refractory wedge in formed silicone material and extends coextensive and adjacent the blade-like knife for preventing stringing or re-welding of the cut material.