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.:

US 6938429 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 06, 2005

Filed:

Oct. 28, 2003
Applicants:

Kenichiro Katogi, Fujieda, JP;

Hidefumi Uesugi, Shizuoka, JP;

Masashi Watanabe, Shizuoka, JP;

Yasutaka Inaba, Shizuoka, JP;

Inventors:

Kenichiro Katogi, Fujieda, JP;

Hidefumi Uesugi, Shizuoka, JP;

Masashi Watanabe, Shizuoka, JP;

Yasutaka Inaba, Shizuoka, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B007/00 ; F25B041/00 ; F25B049/00 ;
U.S. Cl.
CPC ...
Abstract

A refrigerating and air-conditioning system includes a refrigerating machine connected to a showcase by a first refrigerant flow passage, an air-conditioning apparatus for connection of an indoor equipment and an outdoor equipment by means of a second refrigerant flow passage, which forms a different refrigerant circuit from a refrigerant circuit formed by the first refrigerant flow passage, and a centralized control unit for controlling the refrigerating machine and the air-conditioning apparatus, the centralized control unit configured to reduce a cooling operation set temperature in the air-conditioning apparatus relative to a fixed value according to a load on the showcase. When a load on the showcase increases, an indoor temperature is reduced by the air-conditioning apparatus so that a load on the showcase is reduced, reduction in operating efficiency of the refrigerating machine is suppressed, and an improvement in energy saving quality is achieved.


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Katogi, Kenichiro. (2005). Refrigerating and air-conditioning system (U.S. Patent No. 6938429). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6938429

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