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:
Mar. 22, 2005
Filed:
Nov. 06, 2001
Applicant:
James Edward Ellis, Tempe, AZ (US);
Inventor:
James Edward Ellis, Tempe, AZ (US);
Assignee:
Credence Engineering, Inc., Tempe, AZ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22D011/16 ; F16K021/18 ;
U.S. Cl.
CPC ...
Abstract
A level control system for controlling the thickness of a work material in a slurry form cast upon a moving belt includes a fluid reservoir disposed above the belt, a sensor lens assembly for sensing the slurry height within such reservoir, and a control valve for adding slurry to the reservoir. A lens disposed near the moving belt and above the reservoir is coupled by fiber optics to a remote sensor amplifier for detecting the height of the slurry. A control circuit responsive to the light sensor regulates the flow rate of the slurry through the control valve.