Mechanical system for installing and removing contacting devices from a chemical process tower
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Aug 11, 2009
Grant Date -
Mar 16, 2006
app pub date -
Sep 12, 2005
filing date -
Sep 10, 2004
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An apparatus for installing and removing candles from a packed tower comprises a rail or series of rails attached to the inside of the top of the vessel. The rail(s) may be supported from either the roof or walls of the tower. A traveler assembly is supported on the rail(s). The traveler assembly supports a hoist puller that in turn raises and lowers the candles. The rail(s) may be located such that they extend over the centerlines of each of the candle locations, and each such that a portion of each rail passes under the candle installation port. Multiple traveler assemblies may be used to increase the speed of installation. The traveler assembly may be configured to be removed when not in use, to ensure it is not exposed to the harsh environment in the tower. Alternatively, the traveler assembly may be constructed from corrosion-resistant materials, so that the traveler assembly may be left in the tower.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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NORAM ENGINEERING AND CONSTRUCTORS LTD | VANCOUVER BC V6C 1S4 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Crowden, John | Tsawassen, CA | 1 | 0 |
# of filed Patents : 1 Total Citations : 0 |
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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 |
---|---|---|---|
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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