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:
Jan. 26, 1988
Filed:
Dec. 22, 1986
Raymond J Andrejasich, Carmel, IN (US);
Roy F Kidd, Clayton, IN (US);
Ford C Jefferson, Beech Grove, IN (US);
Emhart Industries, Inc., Indianapolis, IN (US);
Abstract
There is a plurality of probes electrically connected to a central controller. Each of the probes is capable of providing a hydrocarbon signal, a water signal and a dry signal upon sensing these respective environments. The controller includes an audible alarm transducer and a switch for activating circuitry providing either a first alarm mode which provides an alarm in response to a hydrocarbon signal or a second alarm mode which provides an alarm in response to a hydrocarbon signal and also a water signal. A continuous alarm tone is provided upon receiving a hydrocarbon signal while an intermittent alarm tone is provided upon receiving a water signal. A yellow label links a 'water' sign and the transducer and a red label links an 'oil' sign and the transducer. The yellow label encircles only a small portion of the transducer and the red label encircles the major portion of the transducer so as to provide a visual indication that the shorter, intermittent tone indicates water while the longer, continuous tone indicates hydrocarbon.