Horizontal flue technology for carbon baking furnace
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 18, 1997
Grant Date -
N/A
app pub date -
Feb 14, 1995
filing date -
Feb 14, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to specially shaped structural components for use in the construction of furnaces, foundries, and similar applications. In particular, the present invention relates to an improved flue wall in a high temperature furnace. The improved flue wall is constructed of specially shaped bricks to improve the tensile strength of the wall, increase the shear transfer capacity of the wall, and thus improve the flue wall life. The flue wall is constructed of specially designed refractory bricks joined together by air and/or heat-set mortar and arranged in courses, and comprises two parallel face walls parallel to the chambers wherein the carbon blocks are positioned and enclosing a flue chamber, two side walls generally perpendicular to the face walls enclosing the lower portion of the flue chamber, and baffle bricks and tie bricks arranged in a number of noncontinuous columns throughout the flue wall. In general the flue wall comprises H-shaped bricks used in the construction of the face walls, K-shaped bricks or C-shaped bricks used in the construction of the side walls of the flue wall to integrate the side wall with the first column of tie bricks, and I-shaped bricks used in the first column of baffle bricks and second column of tie bricks.
First Claim
all claims..Other Claims data not available
Family
- No Family data available.
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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NORTH AMERICAN REFRACTORIES CO | 1228 EUCLID AVENUE - 500 HALLE BUILDING CLEVELAND OH 44115 |
International Classification(s)

- 1995 Application Filing Year
- E04C Class
- 147 Applications Filed
- 55 Patents Issued To-Date
- 37.42 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Chen, En-Sheng | Spring, TX | 1 | 15 |
# of filed Patents : 1 Total Citations : 15 | |||
Nelson, Bryan R | Miffinburg, PA | 2 | 20 |
# of filed Patents : 2 Total Citations : 20 |
Cited Art Landscape
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Patent Citation Ranking
- 15 Citation Count
- E04C Class
- 61.67 % this patent is cited more than
- 28 Age
Forward Cite Landscape
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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 |
Full Text

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