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. 24, 2004
Filed:
Jan. 09, 2003
Applicant:
Inventors:
Assignee:
Hoshizaki Denki Kabushiki Kaisha, Toyoake, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E25C 1/14 ;
U.S. Cl.
CPC ...
E25C 1/14 ;
Abstract
A bypass passage is provided between a discharge pipe and a suction pipe of a compressor being a component of an auger type refrigeration circuit, for allowing a hot gas on the high-pressure side of the circuit to recirculate back to the low-pressure side. An electromagnetic valve is disposed on the bypass passage, and an ammeter is provided to a geared motor that drives an auger, which detects an overcurrent value indicative of an overload acting on the geared motor. In response to detection of an overcurrent value by the ammeter, the electromagnetic valve operates to allow a hot gas on the high-pressure side to be supplied to the low-pressure side through the bypass passage.