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. 29, 2019
Filed:
Mar. 04, 2016
Pentair Water Pool and Spa, Inc., Cary, NC (US);
Keith Lewis, Moorpark, CA (US);
Greg Lyons, Ojai, CA (US);
Pentair Water Pool and Spa, Inc., Cary, NC (US);
Abstract
A chemical controller for an aquatic application comprising at least one output relay. The chemical controller further includes a current detection circuit configured to detect current on an output of the at least one output relay and a current fault detection device configured to output a current fault signal indicative of the occurrence of a current fault condition. The chemical controller further comprises at least one relay latch configured to receive the relay enable signal and the current fault signal and to decouple the relay enable signal from a corresponding relay latch output when the current fault signal indicates the occurrence of a current fault condition. A relay drive circuit is configured to receive a signal from the corresponding relay latch output to and to responsively activate and deactivate the at least one output relay.