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Patent Searching and Data


Title:
ELECTRIC WATER HEATER
Document Type and Number:
Japanese Patent JP2007057161
Kind Code:
A
Abstract:

To provide an electric water heater capable of minimizing the capacity of a hot water storage tank while constantly securing a required amount of hot water of which a used amount becomes maximum temporarily in the evening.

The electric water heater is provided with a heating means for heating water in the hot water storage tank 1, accumulates the hot water boiled by midnight power in the hot water storage tank 1, and is provided with hot water shortage prevention control device 5 for instructing boiling operation to the heating means when the hot water in the hot water storage tank 1 is used in the daytime, and storing the hot water of an approximately full capacity in the hot water storage tank 1 continuously until the evening.


Inventors:
FUJITA HIDEKATSU
KOTO YOSHIKAZU
KURAMOTO SHINJI
Application Number:
JP2005243598A
Publication Date:
March 08, 2007
Filing Date:
August 25, 2005
Export Citation:
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Assignee:
HITACHI APPLIANCES INC
International Classes:
F24H1/18; F24H1/00
Domestic Patent References:
JP2003343922A2003-12-03
JP2001108304A2001-04-20
JP2799799B21998-09-21
JP3181971B22001-07-03
JP2003254619A2003-09-10
JP2004333008A2004-11-25
JPH04257654A1992-09-11
JP2001263801A2001-09-26
JP2001263803A2001-09-26
JPH1047763A1998-02-20
Attorney, Agent or Firm:
Osamu Mori