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:
Aug. 30, 1994
Filed:
Sep. 29, 1992
Applicant:
Inventors:
Michael H Gilbert, Sr, North Olmsted, OH (US);
Timothy J Hejl, Parma, OH (US);
Assignee:
Advanced Ceramics Corporation, Lakewood, OH (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C23C / ; H05B / ;
U.S. Cl.
CPC ...
219552 ; 118725 ; 118726 ; 392389 ;
Abstract
A pyrolytic boron nitride heating unit composed of a dielectric base of boron nitride and a pyrolytic graphite heating element having contact ends for connection to an external power supply through a contact assembly comprising graphite posts connected to the contact ends with each post having a pyrolytic boron nitride coating and exposed attachment ends spaced a predetermined minimum distance from the contact ends for connection to the power supply. The contact assembly preferably also includes flexible graphite washers for connection between the contact ends and the graphite posts.