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:
May. 09, 1989
Filed:
Dec. 23, 1985
Applicant:
Inventors:
Steven C Soloski, Los Angeles, CA (US);
Lowell M Hobrock, Los Angeles, CA (US);
Assignee:
Hughes Aircraft Co., Los Angeles, CA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B / ; B64D / ; B24B / ;
U.S. Cl.
CPC ...
219522 ; 219200 ; 219201 ; 219203 ; 219219 ; 219483 ; 219486 ; 219543 ; 219547 ; 2441 / ; 2441 / ; 52171 ;
Abstract
Uniform electrical heating of a circular, single crystal germanium window (18) uses its bulk resistance and pairs of electrodes (20) equally spaced about the window's periphery. The electrode pairs are sequentially switched at a rate high enough to avoid thermal switching transients.