US Patent No: 7,350,417
Number of patents in Portfolio can not be more than 2000
Pressure sensor with conductive laminate membrane
Stats
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Apr 1, 2008
Issued date -
May 30, 2006
filing date -
11/442,177
serial no -
Expired
status
Importance
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Abstract
A pressure sensor (30) for sensing a fluid pressure in harsh environments such as the air pressure in a tire, by using a chamber (58) partially defined by a flexible membrane (50), the flexible membrane (50) is a laminate having at least two layers wherein at least one of the layers is at least partially formed from conductive material, and the chamber (58) containing a fluid at a reference pressure, such that the flexible membrane (50) deflects from any pressure difference between the reference pressure and the fluid pressure; and, associated circuitry (34) for converting deflection of the flexible membrane (50) into an output signal indicative of the fluid pressure. Forming the membrane from a number of separately deposited layers alleviates internal stress in the membrane (50). The layers can be different materials specifically selected to withstand harsh environments.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 6,968,744 Capacitative pressure sensor with close electrodes | 10 | 2004 | |
| 7,089,790 Pressure sensor with laminated membrane | 9 | 2004 | |
| 7,089,798 Pressure sensor with thin membrane | 11 | 2004 | |
| 7,093,494 Micro-electromechanical pressure sensor | 5 | 2004 | |
| 7,121,145 Capacitative pressure sensor | 8 | 2004 | |
| 7,124,643 Pressure sensor with non-planar membrane | 7 | 2004 | |
| 7,143,652 Pressure sensor for high acceleration environment | 5 | 2004 | |
| 7,159,467 Pressure sensor with conductive ceramic membrane | 4 | 2004 | |
| 7,194,901 Pressure sensor with apertured membrane guard | 7 | 2004 | |
| 7,137,302 Capacitative pressure sensor with transition metal nitride electrode | 6 | 2005 | |
| 7,171,855 Sensor for sensing temperature adjusted fluid pressure | 4 | 2006 | |
| 7,165,460 Temperature compensated pressure sensor | 4 | 2006 | |
| 7,222,538 Fluid permeable membrane sensor | 4 | 2006 | |
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| 6,533,316 Automotive electronic safety network | 68 | 2001 | |
| 6,648,367 Integrated occupant protection system | 65 | 2001 | |
| 6,526,352 Method and arrangement for mapping a road | 152 | 2001 | |
| 6,733,036 Automotive electronic safety network | 66 | 2001 | |
| 6,662,642 Vehicle wireless sensing and communication system | 161 | 2002 | |
| 6,738,697 Telematics system for vehicle diagnostics | 194 | 2002 | |
| 6,758,089 Wireless sensing and communication system of roadways | 71 | 2002 | |
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| 6,370,475 Accident avoidance system | 138 | 1998 | |
| 6,405,132 Accident avoidance system | 305 | 2000 | |
| 6,768,944 Method and system for controlling a vehicle | 121 | 2002 | |
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| 6,484,080 Method and apparatus for controlling a vehicular component | 138 | 2001 | |
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| 6,345,228 Road vehicle sensing apparatus and signal processing apparatus therefor | 33 | 1998 | |
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| 6,301,544 Traffic monitoring system | 11 | 1999 | |
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| 6,741,169 Tire tread integrity monitoring system and method | 65 | 2001 | |
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| 6,441,748 Road surface condition monitoring system using sensors disposed under the road | 19 | 2001 | |
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| 5,853,020 Miniature combination valve and pressure transducer and system | 108 | 1995 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Oct 1, 2015 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 1, 2019 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| 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 |