Electrical generator or motor structure – Non-dynamoelectric – Charge accumulating
Reexamination Certificate
2005-02-15
2005-02-15
Tamai, Karl (Department: 2834)
Electrical generator or motor structure
Non-dynamoelectric
Charge accumulating
C318S116000
Reexamination Certificate
active
06856067
ABSTRACT:
A device for levitating a disk including three bottom electrodes situated below the disk and equidistantly around a top circle and three top electrodes situated above the disk, opposite the three bottom electrodes, and situated equidistantly around a bottom circle. Two bottom reference electrodes are situated below the disk, a first bottom reference electrode forming a bottom inner circle on a bottom inner perimeter of the set of three bottom electrodes, a second bottom reference electrode forming a bottom outer circle on a bottom outer perimeter of the set of three bottom electrodes. Two top reference electrodes are situated above the disk, a first top reference electrode forming a top inner circle on a top inner perimeter of the set of three top electrodes, a second top reference electrode forming a top outer circle on a top outer perimeter of the set of three top electrodes. A drive circuit for driving the three bottom electrodes, the three top electrodes, the two bottom reference electrodes, and the two top reference electrodes. A method of levitating a disk includes applying a first plurality of voltages to three bottom electrodes situated below the disk. A second plurality of voltages is applied to three top electrodes situated above the disk and opposite the three bottom electrodes. A third plurality of voltages is applied to two bottom reference electrodes situated below the disk. A fourth plurality of voltages is applied to two top reference electrodes situated above the disk. A fifth plurality of voltages may be applied to side electrodes to rotate the disk.
REFERENCES:
patent: 4789803 (1988-12-01), Jacobsen et al.
patent: 4943750 (1990-07-01), Howe et al.
patent: 5015906 (1991-05-01), Cho et al.
patent: 5187399 (1993-02-01), Carr et al.
patent: 5604392 (1997-02-01), Vig
patent: 5789843 (1998-08-01), Higuchi et al.
patent: 5955800 (1999-09-01), Shearwood et al.
patent: 6525446 (2003-02-01), Yasuda et al.
Shao Jü Woo et al., Hysteretic Feedback Control of Electrostatic Levitator for Objects Possessing Large Suspension Area-Airgap Ratio Jan. 21, 2003.
Michael Kraft et al., System Level Simulatio of an Electrostatically Levitated Disk, Univ. of Southampton, UK. Jan. 21, 2003.
Frey Wilhelm
Niendorf Andreas
Pan Zhiyu
Kenyon & Kenyon
Robert & Bosch GmbH
Tamai Karl
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