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:
Apr. 07, 1987
Filed:
Jan. 21, 1986
Applicant:
Inventor:
William L Thompson, Montville, OH (US);
Assignee:
The Babcock & Wilcox Company, New Orleans, LA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01F / ; G01D / ;
U.S. Cl.
CPC ...
2502 / ; 7386124 ; 250227 ; 2502 / ;
Abstract
A fiber optic readout from an optic fiber which receives light from a driven LED and conveys it to a light detector, is processed by a preamp and sample and hold arrangement to produce an output of 4-20 mA. This output is applied to a conventional two-wire 4-20 mA line. Power is conserved by using a preamp in a variable pulse rate mode of operation.