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 6644059 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 11, 2003

Filed:

Nov. 20, 2002
Applicant:
Inventors:

Kensaku Maeda, Kanagawa, JP;

Shunro Nishiwaki, Kanagawa, JP;

Assignee:

Ebara Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25D 2/300 ;
U.S. Cl.
CPC ...
F25D 2/300 ;
Abstract

A dehumidifying apparatus capable of continuously supplying dry air having an absolute humidity of 4 g/kgDA or lower is provided. The dehumidifying apparatus has a moisture adsorbing device for removing moisture from process air and for being regenerated by desorbing moisture therefrom with regeneration air B, and a heat pump having a condenser for condensing a refrigerant to heat the regeneration air at the upstream side of the moisture adsorbing device, an evaporator for evaporating the refrigerant to cool the regeneration air to a temperature equal to or lower than its dew point at the downstream side of the moisture adsorbing device, a pressurizer for raising a pressure of the refrigerant evaporated by the evaporator and delivering the refrigerant to the condenser, and a heat exchanger for exchanging heat between the regeneration air flowing between the moisture adsorbing device and the evaporator and the regeneration air flowing between the evaporator and the condenser, wherein said regeneration air is used in circulation. Since moisture is removed from the process air by the moisture adsorbing device, it is possible to obtain air having a low dew point equal to or lower than an freezing point, i.e., a low absolute humidity of 4 g/kgDA or lower.


Find Patent Forward Citations

Maeda, Kensaku. (2003). Dehumidifying apparatus (U.S. Patent No. 6644059). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6644059

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