US Patent No: 8,071,937
Number of patents in Portfolio can not be more than 2000
Methods, systems, and computer program products for measuring the density of material including a non-nuclear moisture property detector
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Dec 6, 2011
Issued date -
Apr 18, 2011
filing date -
13/089,196
serial no -
In Force
status
Importance
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Abstract
The subject matter described herein includes methods, systems, and computer program products for measuring the density of a material. According to one aspect, a material property gauge includes a nuclear density gauge for measuring the density of a material. The nuclear density gauge includes a radiation source adapted to emit radiation into a material and a radiation detector operable to produce a signal representing the detected radiation. A first material property calculation function is configured to calculate a value associated with the density of the material based upon the signal produced by the radiation detector. The material property gauge further includes an electromagnetic moisture property gauge configured to determine a moisture property of the material. The electromagnetic moisture property gauge includes an electromagnetic field generator configured to generate an electromagnetic field where the electromagnetic field sweeps through one or more frequencies and penetrates into the material. The material includes at least one of a pavement material, aggregate base material, concrete, and a soil material. An electromagnetic sensor is configured to determine a frequency response of the material to the electromagnetic field across the one or more frequencies. A second material property calculation function is configured to correlate the frequency response to a moisture property of the material and to calculate a value representing the moisture property. The material property gauge further includes a third material property calculation function configured to determine a material property of the material based on the value associated with the density of the material and the value representing the moisture property of the material.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 4,525,854 Radiation scatter apparatus and method | 33 | 1983 | |
| 4,641,030 Apparatus and method for directly measuring the density of a thin layer | 19 | 1984 | |
| 4,701,868 Apparatus and method for accurately measuring the density of materials with rough surfaces by radiation backscatter | 22 | 1984 | |
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| 6,442,232 Thin layer nuclear density gauge | 10 | 2001 | |
| RE38910 Low activity nuclear density gauge | 14 | 2003 | |
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| 7,569,810 Methods, systems, and computer program products for measuring the density of material | 6 | 2006 | |
| 7,581,446 Methods, systems, and computer program products for determining a property of construction material | 9 | 2006 | |
| 7,820,960 Methods, systems, and computer program products for measuring the density of material including a non-nuclear moisture property detector | 5 | 2009 | |
| 8,011,248 Methods, systems, and computer program products for determining a property of construction material | 4 | 2009 | |
| 2009/0314,090 METHODS, SYSTEMS, AND COMPUTER PROGRAM PRODUCTS FOR DETERMINING A PROPERTY OF CONSTRUCTION MATERIAL | 6 | 2009 | |
| 7,928,360 Methods, systems, and computer program products for measuring the density of material including a non-nuclear moisture property detector | 3 | 2010 | |
| 2011/0035,182 METHODS, SYSTEMS, AND COMPUTER PROGRAM PRODUCTS FOR MEASURING THE DENSITY OF MATERIAL INCLUDING A NON-NUCLEAR MOISTURE PROPERTY DETECTOR | 4 | 2010 | |
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| 4,904,942 Electroseismic prospecting by detection of an electromagnetic signal produced by dipolar movement | 35 | 1988 | |
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| 4,219,776 Method and apparatus for measuring in situ density and fabric of soils | 42 | 1978 | |
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| 6,823,736 Nondestructive acoustic emission testing system using electromagnetic excitation and method for using same | 14 | 2002 | |
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| 5,333,502 Method and apparatus for monitoring the environment of a vessel | 20 | 1992 | |
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Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Jun 6, 2015 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jun 6, 2019 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jun 6, 2023 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| 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 |