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. 27, 2001
Filed:
Nov. 22, 1995
Applicant:
Inventors:
Victor Frederick Thomas, Huntingdon, GB;
Michael Rigby, Huntingdon, GB;
Assignee:
PCME Limited, Cambridgeshire, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 2/500 ;
U.S. Cl.
CPC ...
G01N 2/500 ;
Abstract
An apparatus for detecting particles in a flow comprises a probe,positioned so that it projects into the flow and is charged triboelectrically by the particles in the flow. An electric circuit is coupled to the probe,and includes evaluating means for monitoring a signal from the probe,and for providing an output in dependence on the signal generated by the triboelectric charging of the probe,The part of the probe,that projects into the particle flow comprises an electrically conducting core covered with an insulating layer,which insulates the core from the particle flow.