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:
Jul. 06, 2004
Filed:
Oct. 24, 2002
Applicant:
Inventor:
Robbie William Hall, Charlotte, VT (US);
Assignee:
Simmonds Precision Products, Inc., Charlotte, NC (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 2/556 ;
U.S. Cl.
CPC ...
G01N 2/556 ;
Abstract
A method of detecting a dry/wet state of a thermistor bead comprises the steps of: conducting current through the thermistor bead selectively between first and second current levels; measuring a difference in voltage across the thermistor bead in response to the first and second current levels; and detecting the dry/wet state of the thermistor bead based on the measured difference in voltage. In one embodiment, the first and second current levels conducted through the thermistor bead are both less than thirty milliamps. Apparatus for embodying this detection method is also disclosed.