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:
Feb. 06, 2001
Filed:
Mar. 10, 1998
Applicant:
Inventor:
Timothy L. Herman, Napa, CA (US);
Assignee:
Advanced Technology Materials, Inc., Danbury, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B08B 9/027 ; F23J 3/02 ;
U.S. Cl.
CPC ...
B08B 9/027 ; F23J 3/02 ;
Abstract
An apparatus for cleaning a chamber is disclosed. Scraping blades are rotatably mounted within a chamber and parallel to a longitudinal axis of the chamber. The scraping blades are rotated circumferentially within the chamber, scraping the inner surface of the chamber to prevent the buildup of particulate matter. An annular gear assembly provides mounting support for the scraping blades. A pneumatically operated pushrod assembly rotates the scraping blades circumferentially within the chamber. The annular gear assembly and pushrod assembly do not obstruct a direct path through the chamber.