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:
Sep. 30, 1986
Filed:
Aug. 06, 1984
Hiroyasu Nadamoto, Mitaka, JP;
Koichi Yoinara, Sano, JP;
Nihon Radiator Co., Ltd., Tokyo, JP;
Abstract
An apparatus for alarming abnormal coolant in a space cooling cycle, comprising a coolant passage for guiding high-pressure side liquid coolant in said space cooling cycle, a sensor disposed in said coolant passage and provided with a movable part having an operating fluid sealed therein and adapted to be operated by the difference of the pressure of said operating fluid and that of said liquid coolant, and a switch and an alarm device disposed in said coolant passage and interlocked with the movable part, and said operating fluid having higher saturated pressure than the saturated pressure of said coolant and possessing an ability to operate said switch when the extent of subcool of said coolant exceeds a prescribed level and the pressure of the coolant exceeds the pressure of said operating liquid and when the pressure of the coolant exceeds the pressure under which said operating fluid is wholly in a gasified state.