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. 06, 1977
Filed:
Sep. 15, 1975
Lawrence A Berger, Orange, CA (US);
Robert Carroll Hunt, Santa Ana, CA (US);
Uniloc, Incorporated, Irvine, CA (US);
Abstract
A method and apparatus for determining boiler water conductivity to minimize erratic readings due to the random presence of steam in the region of the conductivity sensor. The apparatus includes circuitry for providing a signal responsive to the peak conductivity detected by the sensor. This peak signal is stored in a storage circuit having a relatively slow decay rate so as to not be disturbed by subsequent lower and erratic conductivity probe signals, with the stored peak signals being updated by subsequent peak readings more indicative of the true conductivity of the water. An embodiment which steps to subsequent peak readings is also disclosed.