Combustion cylinder construction for oil space heater
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 11, 1986
Grant Date -
N/A
app pub date -
Dec 13, 1982
filing date -
Dec 23, 1981
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A combustion cylinder construction for an oil space heater is disclosed which is constructed to dispose a uniform air flow forming mechanism between an outermost heat-permeable cylinder and an outer cylindrical member of a double combustion cylinder, thereby not only to keep the double combustion cylinder in a red-heated state, but also to carry out the formation of a uniform and stable white-yellow flame and to complete combustion at a flame spreading means. There is also disclosed a combustion cylinder construction which further includes a heat ray reflecting means to render the temperature profiles through the heat-permeable cylinder as uniform as possible, resulting in an oil space heater having a long service life.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
TOYOTOMI KOGYO CO LTD A CORP OF JAPAN | 1-6 AZA YOBITSUGI ATSUTA HIGASHI-MACHI MIZUHO-KU NAGOYA-SHI AICHI-KEN |
International Classification(s)

- 1982 Application Filing Year
- F23D Class
- 99 Applications Filed
- 0 Patents Issued To-Date
- 0 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Mito, Yoshio | Gifu, JP | 16 | 74 |
# of filed Patents : 16 Total Citations : 74 | |||
Nakamura, Kazuharu | Nagoya, JP | 75 | 383 |
# of filed Patents : 75 Total Citations : 383 | |||
Nakanishi, Yutaka | Kounan, JP | 71 | 794 |
# of filed Patents : 71 Total Citations : 794 |
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Patent Citation Ranking
- 6 Citation Count
- F23D Class
- 0 % this patent is cited more than
- 39 Age
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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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