Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2006-10-10
2006-10-10
Dougherty, Thomas M. (Department: 2834)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
C310S323090, C310S323170
Reexamination Certificate
active
07119477
ABSTRACT:
A piezoelectric motor comprising: a piezoelectric vibrator (50) having a surface comprising a localized non-planar shaped first surface region thereon which first surface region has a shape different from the shape of the surface on which it is located; and a friction nub (52) formed with a second surface region that is substantially a negative relief of the first surface region, which first and second regions are bonded together. Preferably the friction nub (52) is detachably mounted to the vibrator (50) via a boss (54) waving a protuberance (56) of conical shape. Alternatively the friction nub (52) has a protuberance (76) which is form-fitted to a recess (72) in the vibrator (50) or boss (70), respectively. First and second surface regions can also be threading surfaces.
REFERENCES:
patent: 4963781 (1990-10-01), Sumihara et al.
patent: 5162692 (1992-11-01), Fujimura
patent: 5453653 (1995-09-01), Zumeris
patent: 5543670 (1996-08-01), Luecke
patent: 5698930 (1997-12-01), Takagi
patent: 6373170 (2002-04-01), Hills
patent: 6384514 (2002-05-01), Slutskiy et al.
Dodiuk-Kenig Hanna
Ganor Ze'ev
Karasikov Nir
Dougherty Thomas M.
Fenster & Company
Nanomotion Ltd.
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