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:
Nov. 20, 1990
Filed:
Aug. 09, 1989
Egidio Berwanger, Joinville, BR;
Marcos G Schwarz, Joinville, BR;
Empresa Brosileria de Compresseres S/A-EMBRACO, Joinville SC, BR;
Abstract
Blocking valve for refrigeration or air conditioning systems, of the type which includes: a hermetic compressor driven by an electric motor, a condenser, an evaporator, a capillary tube between the condenser and the evaporator, and a blocking valve between the condenser and the capillary tube. The blocking valve has a housing (42) defining an inside chamber with inlet and outlet passage in fluid communication with the condenser (31) and, respectively, with the capillary tube (32). A magnetic slide (41) installed in the chamber can be displaced between an opening position and a closure position of the valve. Electromagnetic elements (46, 47) assembled in the housing (42) are selectively and automatically energized during a period of time sufficient to cause the displacement of the slide (41) from one operating position to another in accordance with an operating condition of the system, the slide (41) being retained in its operating positions by action of non-electromagnetic forces.