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:
Apr. 10, 1990
Filed:
Jan. 06, 1989
Magnus T Walfridson, Sollentuna, SE;
Stig H Farndahl, Farsta, SE;
Aktiebolaget Electrolux, Stockholm, SE;
Abstract
The invention refers to an arrangement at a refrigerator cabinet (10) having an absorption refrigerating apparatus (16,18) operated by a heating cartridge (40) from at least one electric current source or by a gas burner (38). The arrangement shows a control apparatus (74) which automatically starts the gas burner (38) when the supply of current to the heating cartridge (40) ceases. The refrigerating apparatus (18) is with exception of its evaporator (16) enclosed in a heat insulated chamber (20) through which surrounding air circulates for cooling of the refrigerating apparatus (18). In order to prevent the refrigerant in the refrigerating apparatus from freezing to plugs at low temperature of the surrounding air, which plugs put the refrigerating apparatus out of function, means (86) are arranged to limit the air circulation through the chamber (20) and a temperature sensing means (80) is located in the chamber for breaking the current to the heating cartridge (40) at a certain low temperature in the chamber (20) so that the gas burner (38) is put into operation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile