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. 03, 1979
Filed:
Dec. 30, 1977
Robert Baboian, Johnston, RI (US);
Gardner S Haynes, Attleboro, MA (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A sensor is adapted to be mounted so that it comes in contact with coolant fluid of a vehicular cooling system. When the corrosion inhibiting characteristic of the fluid is effective to prevent corrosion a first potential range is produced whereas when the characteristic is ineffective a second range exists. The effectiveness of the inhibiting characteristic can be displayed in the form of a high impedance voltmeter mounted in the dashboard or other convenient location or indicating means such as a light can be actuated when the potential reaches a threshold level indicating that the inhibiting characteristic is not effective to prevent corrosion. The sensor comprises a reference electrode used with a single sensor electrode on one embodiment and with a pair of sensor electrodes in a second embodiment.