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:
Sep. 08, 1992
Filed:
Mar. 25, 1991
Applicant:
Inventor:
Gerald L Gill, Jr, Phoenix, AZ (US);
Assignee:
Westech Systems, Inc., Phoenix, AZ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B08B / ;
U.S. Cl.
CPC ...
15 971 ; 15 211 ; 15 77 ; 15 882 ;
Abstract
Apparatus for cleaning an offset semiconductor wafer includes first and second opposed brushes circumscribing a common drive shaft. The wafer includes a circular peripheral edge. At any given instant, a first portion of the offset semiconductor wafer is positioned between and contacts the brushes while the second remaining portion of the semiconductor wafer extends outwardly from between the brushes. The peripheral edge of the second portion of the wafer contacts and is turned by a rotating support member.