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:
Oct. 11, 1994
Filed:
Apr. 30, 1993
Applicant:
Inventors:
John D Sneed, Long Beach, CA (US);
Wilfried Krone-Schmidt, Fullerton, CA (US);
Michael J Slattery, Gardena, CA (US);
Howard S Bowen, Los Angeles, CA (US);
Assignee:
Hughes Aircraft Company, Los Angeles, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B08B / ;
U.S. Cl.
CPC ...
134-6 ; 134-7 ; 134 26 ; 134 30 ;
Abstract
An improved apparatus and method for removing trace contaminants from the surface of a chosen substrate, such as delicate surfaces or precision parts, wherein the improvement consists of heating a portion of a chosen substrate surface immediately before, during and/or after application of a stream of cleaning snow to the same portion of the substrate surface.