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:
Oct. 12, 1993
Filed:
Jun. 19, 1990
Rick L Bunch, Tecumseh, MI (US);
Robert L Morse, Clayton, MI (US);
Tara C Kandpal, Tecumseh, MI (US);
Tecumseh Products Company, Tecumseh, MI (US);
Abstract
The present invention is a crankcase heater for preventing the migration of liquid refrigerant. The heater is located on the compressor housing surface near the oil sump. The heater is positioned within a fence of a terminal assembly, covering substantially all the surface area enclosed by the fence except for the terminal cluster itself. The heater provides heat to the housing and the interior of the compressor, and the gasket insulates the heater and interiorly reflects the heat produced. Liquid refrigerant in the oil sump is boiled off to increase the pressure inside the housing and inhibit migration of refrigerant from the evaporator or accumulator.