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. 14, 1984
Filed:
Mar. 29, 1982
Mario F Briccetti, Liverpool, NY (US);
Carrier Corporation, Syracuse, NY (US);
Abstract
An electrical system which is part of a control system for a heat pump is disclosed. In addition to other functions, the electrical system protects an AC power supply for the control system from a short circuit condition in an electrical load connected to the power supply. The electrical system includes a device for monitoring the voltage drop across the load and for generating an electrical clock signal only when the monitored voltage drop exceeds a selected level indicating no short circuit condition in the load, a microcomputer having an internal timer for receiving any generated clock signal, and relay means controlled by the microcomputer for operating switches to disconnect the AC power supply from the load when a short circuit condition is detected in the load.