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:
Dec. 08, 1981
Filed:
Dec. 07, 1979
Applicant:
Inventor:
Bill K Fox, Kansas City, MO (US);
Assignee:
Standard Havens, Inc., Kansas City, MO (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
356439 ; 250573 ; 250575 ;
Abstract
A method and apparatus for use in an outside collection baghouse to identify defective filter bags. Each filter bag is equipped with a sensing head adjacent the open mouth of the bag. Each sensing head includes a pair of optical fibers having free ends disposed in the path of gas flowing out the bag mouth. Light is applied to one optical fiber in each pair and the amount of light reaching the other optical fiber is sensed to provide a measurement of the amount of light intercepted by particulate matter leaking through the bag.