Measuring and testing – Specimen stress or strain – or testing by stress or strain... – Specified electrical sensor or system
Reexamination Certificate
2011-04-12
2011-04-12
Noori, Max (Department: 2855)
Measuring and testing
Specimen stress or strain, or testing by stress or strain...
Specified electrical sensor or system
C073S862337, C073S862626
Reexamination Certificate
active
07921728
ABSTRACT:
A flexible apparatus and method to enhance capacitive force sensing is disclosed. In one embodiment, a force measuring device includes a sensor capacitor having a fixed surface and a moveable surface substantially parallel to the fixed surface, at least one spring assembly (e.g., may deflect longitudinally and/or perpendicularly to a direction of the force) positioned between the fixed surface and the movable surface (e.g., the spring assembly may alter in height in response to a force applied perpendicular to the movable surface and to cause a change in the gap between the fixed surface and the movable surface), and a circuit to generate a measurement of the force based on an algorithm that considers a change in a capacitance of the sensor capacitor. A reference capacitor may adjust the measurement of the applied force based on one or more environmental conditions.
REFERENCES:
patent: 3841153 (1974-10-01), Michelson
patent: 4466046 (1984-08-01), Cherry
patent: 4951764 (1990-08-01), Brand
patent: 5169112 (1992-12-01), Boyles et al.
patent: 6026694 (2000-02-01), Gray
patent: 6079282 (2000-06-01), Lanter
patent: 6196067 (2001-03-01), Martin et al.
patent: 6642857 (2003-11-01), Schediwy et al.
patent: 6802222 (2004-10-01), Ishio et al.
patent: 7047818 (2006-05-01), Dallenbach et al.
patent: 7353713 (2008-04-01), Harish et al.
Dallenbach William D.
Harish Divyasimha
Noori Max
Raj Abhyanker P.C.
YPoint Capital, Inc
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