Fuel level indicator for combustion tools
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United States of America Patent
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Apr 20, 2004
Grant Date -
N/A
app pub date -
May 9, 2003
filing date -
May 9, 2003
priority date (Note) -
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Abstract
A combustion tool employing a replaceable pressurized fuel cell includes a fuel condition monitor system for monitoring and indicating fuel cell fuel condition. The fuel condition monitor system includes a fuel condition monitor for monitoring at least one of fuel cell pressure and fuel flow from the fuel cell, a control unit connected to the monitor for receiving fuel condition data sensed by the monitor, comparing the sensed data with preset values and determining fuel level in the fuel cell based on the determinations, a metering valve connected to the control unit, providing the exact amount of fuel based upon fuel cell condition, and an indicator connected to the control unit for providing an indication of fuel level. A method of monitoring and indicating combustion tool fuel cell condition includes providing a preset series of fuel cell condition values, monitoring fuel cell condition, obtaining fuel cell condition data, comparing the monitored data with preset values and determining whether there is sufficient fuel and providing a signal to an indicator.

First Claim
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
ILLINOIS TOOL WORKS INC | 3600 WEST LAKE AVENUE GLENVIEW IL 60026 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Fabin, Joseph E | Elmwood Park, IL | 18 | 1143 |
Ricordi, Christian Paul A | Bourg-les-Valence, FR | 1 | 821 |
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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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