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:
Nov. 14, 2017
Filed:
Aug. 31, 2016
Applicant:
Blue Line Engineering Company, Colorado Springs, CO (US);
Inventors:
Steven D. Roach, Colorado Springs, CO (US);
Gregory H. Ames, Colorado Springs, CO (US);
Philip N. Zercher, Colorado Springs, CO (US);
Assignee:
Blue Line Engineering, Colorado Springs, CO (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01V 3/10 (2006.01); G01D 5/22 (2006.01); G01N 27/90 (2006.01);
U.S. Cl.
CPC ...
G01D 5/2275 (2013.01); G01N 27/90 (2013.01); G01V 3/10 (2013.01);
Abstract
A transconductor converts voltage on an inductive sensor to a proportional current using two 'coupling' capacitors. Responsive to movement of an electrically conductive target from the null position a resonant current is formed between the two sensor coils. A single differential transistor pair switched by periodic drive signals commutes the net alternating current at the single input to direct current.