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. 05, 1995
Filed:
Feb. 01, 1994
Tomihisa Ohuchi, Tsukuba, JP;
Akira Nishiguchi, Ushiku, JP;
Seiichiro Sakaguchi, Ibaraki, JP;
Daisuke Hisajima, Ibaraki, JP;
Michihiko Aizawa, Ushiku, JP;
Takashi Nakao, Ibaraki, JP;
Yasuo Koseki, Hitachiota, JP;
Kyoji Kohno, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
The capacity control range of an interior unit of a multiple type absorption air conditioning system is enlarged, and turning on and off of cooling/heating and switch over between the cooling and heating can be readily and safely performed. The capacity control range is increased by reserving a liquid refrigerant in an absorption cool/warm water unit. An interior unit is connected to the absorption cool/warm water unit by a communication device. The operation of the cool/warm water unit caused by turning on and off the system and switch over between cooling and heating are automatically controlled by an operation control device. Consequently, the operation is simplified, and safety is improved.