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US Patent 7213407 Wide temperature range heat pump

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Patent abstract

The present invention provides an air-condition heat pump capable of defrosting and air-conditioning at same time. The present invention utilizes at least two evaporators, which harvest the energy from one working evaporator to provide energy for defrost operation of another evaporator, thus the air-condition heat pump can defrost without additional energy. Under low temperature working condition, the present invention utilizes a suction pressure boost to increase efficiency.

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US Patent 07213407 Wide temperature range heat pump US Patent 7213407 Wide temperature range heat pump

Infobox
Patent Number
0721340700
Patent Number
721340700
Edits on 18 May, 2023
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Official Website
https://pdfpiw.uspto.gov/.piw?Docid=0721340700
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Infobox
Is a
Patent
Patent
0
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
0
Patent Number
072134070
Date of Patent
May 8, 2007
0
Patent Application Number
111032210
Date Filed
April 12, 2005
0
Official Website
https://pdfpiw.uspto.gov/.piw?Docid=072134070
Patent Primary Examiner
Melvin Jones
Melvin Jones
0
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"Entity importer update"
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edited on 24 Sep, 2022
Infobox
Is a
Patent
Patent
0
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
0
Patent Number
072134070
Date of Patent
May 8, 2007
0
Patent Application Number
111032210
Date Filed
April 12, 2005
0
Official Website
https://pdfpiw.uspto.gov/.piw?Docid=072134070
Patent Primary Examiner
Melvin Jones
Melvin Jones
0
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"Entity importer update"
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Website URL
https://pdfpiw.uspto.gov/.piw?Docid=07213407
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 US Patent 07213407 Wide temperature range heat pump

Infobox
Is a
Patent
Patent
Patent jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent number
07213407
Date of patent
May 8, 2007
Patent application number
11103221
Date Filed
April 12, 2005
Patent primary examiner
Melvin Jones
Melvin Jones

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