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:
May. 11, 1976
Filed:
Oct. 04, 1974
Gary W Vest, Cleveland, OH (US);
Other;
Abstract
An instrument for measuring and testing wet cell storage battery charge levels including the total charge level and the charge level of individual cells. The instrument has an autopolarity feature and utilizes a diode rectifier circuit with a DC voltmeter connected across the terminals. Separate circuits may be selected to provide two voltage readout scales including a scale for measuring the total charge level and a scale for measuring the charge of individual cells. The device has unique conductive probes at the ends of the test leads, the probes being adapted for immersion in the electrolyte of the cells in order to measure the charge level of individual cells. The probes are also used to provide electrical contact across the battery terminals for the total charge test. The probes are elongated steel rods coated with cadmium plating and having the outer ends ground off so that a roughened steel end surface is exposed to the electrolyte.