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:
Feb. 16, 2021
Filed:
Jul. 30, 2020
John Walsh, Bozeman, MT (US);
Robert J. Mowris, Olympic Valley, CA (US);
John Walsh, Bozeman, MT (US);
Robert J. Mowris, Olympic Valley, CA (US);
Other;
Abstract
Apparatus to continuously charge a smart thermostat battery and enable control of a 2-wire millivolt gas fireplace/heating system or a Heating, Ventilating, Air Conditioning (HVAC) system with at least one 24 VAC control voltage signal. The apparatus comprises one diode in a thermostat element or at least one terminal with a diode and a switch in the smart thermostat, and two diodes and a switch device in a switch element. The apparatus is configured to conduct a rectified current signal to charge the smart thermostat battery, and the at least one rectified 24 VAC control voltage signal to energize the switch device to control a HVAC system. The apparatus may be integrated into a smart thermostat with a graphical display to provide simple instructions to easily install the apparatus and the smart thermostat for a HVAC system without a common wire or a 2-wire millivolt gas fireplace/heating system.