Measuring and testing – Tire – tread or roadway
Reexamination Certificate
2006-08-15
2006-08-15
Lefkowitz, Edward (Department: 2855)
Measuring and testing
Tire, tread or roadway
C073S716000, C073S736000
Reexamination Certificate
active
07089790
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.
REFERENCES:
patent: 5853020 (1998-12-01), Widner
patent: 6301544 (2001-10-01), Sonderegger
patent: 6345228 (2002-02-01), Lees
patent: 6370475 (2002-04-01), Breed et al.
patent: 6405132 (2002-06-01), Breed et al.
patent: 6441748 (2002-08-01), Takagi et al.
patent: 6484080 (2002-11-01), Breed et al.
patent: 6526352 (2003-02-01), Breedet al.
patent: 6533316 (2003-03-01), Breed et al.
patent: 6648367 (2003-11-01), Breed et al.
patent: 6662642 (2003-12-01), Breed et al.
patent: 6733036 (2004-05-01), Breed et al.
patent: 6738697 (2004-05-01), Breed
patent: 6741169 (2004-05-01), Magiawala et al.
patent: 6758089 (2004-07-01), Breed et al.
patent: 6768944 (2004-07-01), Breed et al.
patent: 261972 (1988-03-01), None
patent: 756164 (1997-01-01), None
patent: WO 2003/106952 (2003-12-01), None
Mallinson Samuel George
Silverbrook Kia
Allen Andre
Lefkowitz Edward
Silverbrook Research Pty Ltd
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