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:
Jul. 27, 1993
Filed:
Dec. 12, 1991
Daryl G Erbs, Palermo, NY (US);
Carrier Corporation, Syracuse, NY (US);
Abstract
A crankcase heater control system for a refrigeration system includes a first temperature sensor for sensing the outdoor temperature, and, a second temperature sensor for sensing compressor discharge temperature. A controller is operatively connected to temperature sensors and the crankcase heater. When the ambient temperature falls below a first pre-determined temperature the controller compares the compressor discharge temperature to a second pre-determined temperature which is greater than the first pre-determined temperature and energizes the crankcase heater when the compressor discharge temperature falls below the second pre-determined temperature.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile