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. 14, 2010
Filed:
Mar. 06, 2007
Applicants:
John A. Gorczyca, Lansdale, PA (US);
King K. Miller, Philadelphia, PA (US);
Inventors:
John A. Gorczyca, Lansdale, PA (US);
King K. Miller, Philadelphia, PA (US);
Assignee:
Illinois Tool Works Inc., Glenview, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/302 (2006.01);
U.S. Cl.
CPC ...
Abstract
Current is measured in an ionization device that includes a high voltage supply, and an emitter electrically coupled to the HV supply. An opto-isolator is provided that includes a light source and a light detector. The light source has a current flowing through it. The light source is electrically coupled to the emitter. The output of the light detector is measured. The output of the light detector is related to the current flowing through the light source.