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:
Mar. 13, 2001
Filed:
May. 11, 1999
David R. Johnson, Garden Grove, CA (US);
Other;
Abstract
A voltage and continuity tester consists of a positive probe, a negative probe, and a valve finder probe. An AC/DC activated loud buzzer is coupled across the positive probe and the negative probe. In the preferred embodiment, the valve finder probe is coupled to the negative probe via a diode. In operation, the voltage and continuity tester is a simple, convenient and affordable diagnostic tool used to systematically troubleshoot common problems with irrigation and other systems. The loud AC/DC activated buzzer allows diagnosis of system failures from a remote location and eliminates the need to stay within close visual range for interpretation of test results. When used to test irrigation systems, the valve finder probe allows a user to quickly and easily locate any valve in the system. In the preferred embodiment, the positive probe and the negative probe include piercing connectors that break through the insulation of a wire and directly contact the wire without having to cut the insulation.