Laminated heat exchanger
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Sep 15, 2009
Grant Date -
Aug 2, 2007
app pub date -
Jan 30, 2007
filing date -
Jan 31, 2006
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A circular refrigerant outlet is formed in an endmost flat, hollow member of a laminated heat exchanger. An outlet header is fixed to the endmost flat, hollow member, and an outlet pipe having a circular cross section is connected to an open end of the outlet header. The inside diameter of the refrigerant outlet is 90% to 110% that of the outlet pipe. The outlet header has a first portion having a refrigerant passage hole communicating with the refrigerant outlet. The first portion has a vertical, flat wall portion and two fragmentary, cylindrical wall portions continuous with respective upper and lower edges of the flat wall portion. The curvature radius of the inner surface of the fragmentary, cylindrical wall portion is 35% to 50% the inside height of the first portion. The equivalent inside diameter of the first portion is 90% to 110% the inside diameter of the outlet pipe.
First Claim
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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KEIHIN THERMAL TECHNOLOGY CORPORATION | TOCHIGI COUNTY JAPAN |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Matsubayashi, Hiroshi | Oyama , JP | 28 | 301 |
# of filed Patents : 28 Total Citations : 301 | |||
Watanabe, Mikio | Oyama , JP | 250 | 4189 |
# of filed Patents : 250 Total Citations : 4189 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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