US4400641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piezoelectric motor with two part rotor
Assignee: KLEVSKY POLITEKHNICHESKY INSTITUT USSR KIEV
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Filing: 1982-04-16
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Granted: 1983-08-23
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Expires: 2002-04-16
Abstract
Abstract A piezoelectric motor of the invention comprises a stator and a rotor one of which includes at least one first piezoelectric oscillator. The rotor consists of a first and a second parts one of which parts includes a second piezoelectric oscillator. Said parts of the rotor are mounted for relative rotation about the axis of rotation. The first part is in contact with the stator along the first surface of frictional interaction and with the second part along the second surface of frictional interaction. Each surface of frictional interaction is formed by rotation of at least one straight line length about the axis of rotation of the rotor.
Inventors
- 👤 Vladimir S. Vishnevsky
- 👤 Vitaly S. Koval
- 👤 Vyacheslav V. Lavrinenko
- 👤 Oleg L. Boichenko
- 👤 Igor A. Kartashev
- 👤 Jury V. Golovyashin
- 👤 Nikolai F. Serov
- 👤 Leonid I. Shinkarenko
- 👤 Oleg G. Jurash
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:40
CPC Classifications
H; H02; H02N; H02N2/00; H02N2/0005; H02N2/001; H02N2/002; H02N2/005; H02N2/0065; H02N2/10; H02N2/103
Claims Analysis
Total Claims: 45
Claim 1
Independent Claim
154 words
A piezoelectric motor comprising a stator and a rotor one of which includes at least one first piezoelectric oscillator including a piezoelectric element having a working surface, the rotor consisting of a first and a second parts, one of which parts including at least one second piezoelectric oscillator having a piezoelectric element having a working surface, said first and second parts of the rotor being capable of mutually rotating with respect to the axis of rotation of the rotor, said first part of the rotor being in contact with the stator on the first surface of the frictional interaction provided by rotation of at least one length of a straight line about the axis of rotation of the rotor and with said second part of said rotor on a second surface of frictional interaction provided by rotation of at least one length of a straight line about the axis of rotation of said rotor.
Claim 2
Dependent Claim
154 words
A piezoelectric motor comprising a stator and a rotor one of which includes at least one first piezoelectric oscillator including a piezoelectric element having a working surface, the rotor consisting of a first and a second parts, one of which parts including at least one second piezoelectric oscillator having a piezoelectric element having a working surface, said first and second parts of the rotor being capable of mutually rotating with respect to the axis of rotation of the rotor, said first part of the rotor being in contact with the stator on the first surface of the frictional interaction provided by rotation of at least one length of a straight line about the axis of rotation of the rotor and with said second part of said rotor on a second surface of frictional interaction provided by rotation of at least one length of a straight line about the axis of rotation of said rotor.
Claim 3
Dependent Claim
59 words
A piezoelectric rotor according to claim 1, wherein the first part of the rotor together with the stator defines a first angle of contact at the location where they are in contact while the first part of the rotor together with the second part thereof defines a second angle of contact at the location where they are in contact.
Claim 4
Dependent Claim
21 words
A piezoelectric motor according to claim 2, wherein the first and the second angles of contact are of the same sign.
Claim 5
Dependent Claim
20 words
A piezoelectric motor according to claim 2, wherein the first and the second angles of contact are of different signs.
Claim 6
Dependent Claim
35 words
a piezoelectric motor according to claim 1, wherein the first surface of frictional interaction is located on the stator, and the second surface of frictional interaction is located on the first part of the rotor.
Claim 7
Dependent Claim
39 words
A piezoelectric motor according to claim 5, wherein the stator comprises a body having a portion of its surface formed by rotation of at least one length of a straight line about the axis of rotation of the rotor.
Claim 8
Dependent Claim
43 words
A piezoelectric motor according to claim 5, wherein the first part of the rotor comprises a body having a portion of its surface formed by rotation of at least one length of a straight line about the axis of rotation of the rotor.
Claim 9
Dependent Claim
51 words
A piezoelectric motor according to claim 6, wherein the portion of the stator surface is a working surface of at least one first piezoelectric oscillator held in the stator, and the first part of the rotor comprises at least one plate in contact at one end thereof with the working surface.
Claim 10
Dependent Claim
32 words
A piezoelectric motor according to claim 6, wherein the first part of the rotor includes at least one first piezoelectric oscillator having its working surface urged against said surface of the stator.
Claim 11
Dependent Claim
40 words
A piezoelectric motor according to claim 9, wherein the first piezoelectric oscillator includes at least one plate having one end held in the body of the first piezoelectric oscillator and the other end providing a working surface of the oscillator.
Claim 12
Dependent Claim
61 words
A piezoelectric motor according to claim 7, wherein said portion of the surface of the first part of the rotor is a working surface of at least one second piezoelectric oscillator held in the first part of the rotor, and the second part of the rotor comprises at least one plate in contact at one end thereof with such working surface.
Claim 13
Dependent Claim
39 words
A piezoelectric motor according to claim 7, wherein the second part of the rotor includes at least one second piezoelectric oscillator having its working surface urged against said portion of the surface of the first part of the rotor.
Claim 14
Dependent Claim
40 words
A piezoelectric motor according to claim 12, wherein the second piezoelectric oscillator includes at least one plate having one end held in the body of the second piezoelectric oscillator and the other end providing a working surface of the oscillator.
Claim 15
Dependent Claim
36 words
A piezoelectric motor according to claim 1, wherein the first surface of frictional interaction is located on the stator, and the second surface of the frictional interaction is located on the second part of the rotor.
Claim 16
Dependent Claim
39 words
A piezoelectric motor according to claim 14, wherein the stator comprises a body having a portion of its surface formed by rotation of at least one length of a straight line about the axis of rotation of the rotor.
Claim 17
Dependent Claim
43 words
A piezoelectric motor according to claim 14, wherein the second part of the rotor comprises a body having a portion of its surface formed by rotation of at least one length of a straight line about the axis of rotation of the rotor.
Claim 18
Dependent Claim
51 words
A piezoelectric motor according to claim 15, wherein the portion of the stator is a working surface of at least one first piezoelectric oscillator held in a stator, and the first part of the rotor comprises at least one plate being in contact at one end thereof with the working surface.
Claim 19
Dependent Claim
30 words
A piezoelectric motor according to claim 16, wherein the first part of the rotor includes one first piezoelectric oscillator having its working surface urged against said surface of the stator.
Claim 20
Dependent Claim
40 words
A piezoelectric motor according to claim 18, wherein the first piezoelectric oscillator includes at least one plate having one end held in the body of the first piezoelectric oscillator and the other end providing a working surface of the oscillator.
Claim 21
Dependent Claim
62 words
A piezoelectric motor according to claim 16, wherein said portion of the surface of the second part of the rotor is a working surface of at least one second piezoelectric oscillator held in the second part of the rotor and the first part of the rotor comprises at least one plate being in contact at one end thereof with such working surface.
Claim 22
Dependent Claim
41 words
A piezoelectric motor according to claim 16, wherein the first part of the rotor includes at least one second piezoelectric oscillator having its working surface being in contact at said portion of the surface of the second part of the rotor.
Claim 23
Dependent Claim
40 words
A piezoelectric motor according to claim 21, wherein the second piezoelectric oscillator includes at least one plate having one end held in the body of the second piezoelectric oscillator and the other end providing a working surface of the oscillator.
Claim 24
Dependent Claim
39 words
A piezoelectric motor according to claim 1, wherein the first surface of frictional interaction is located on the first par of the rotor, and the second surface of frictional interaction is located on the second part of the rotor.
Claim 25
Dependent Claim
43 words
A piezoelectric motor according to claim 23, wherein the first part of the rotor comprises a body having a portion of its surface formed by rotation of at least one length of a straight line about the axis of rotation of the rotor.
Claim 26
Dependent Claim
43 words
A piezoelectric motor according to claim 23, wherein the second part of the rotor comprises a body having a portion of its surface formed by rotation of at least one length of a straight line about the axis of rotation of the rotor.
Claim 27
Dependent Claim
54 words
A piezoelectric motor according to claim 24, wherein said portion of the first part of the rotor is a working surface of at least one first piezoelectric oscillator held in the first part of the rotor, and the stator comprises at least one plate in contact at one end thereof with the working surface.
Claim 28
Dependent Claim
34 words
A piezoelectric motor according to claim 24, wherein the stator includes at least one first piezoelectric oscillator having its working surface being in contact at said surface of the first part of the rotor.
Claim 29
Dependent Claim
40 words
A piezoelectric motor according claim 27, wherein the first piezoelectric oscillator includes at least one plate having one end held in the body of the first piezoelectric oscillator, and the other end providing a working surface of the same oscillator.
Claim 30
Dependent Claim
61 words
A piezoelectric motor according to claim 25, wherein said portion of the surface of the second part of the rotor is a working surface of at least one second piezoelectric oscillator held in the second part of the rotor and the first part of the rotor comprises at least one plate in contact at one end thereof with such working surface.
Claim 31
Dependent Claim
39 words
A piezoelectric motor according to claim 25, wherein the first part of the rotor includes at least one second piezoelectric oscillator having its working surface urged against said portion of the surface of the second part of the rotor.
Claim 32
Dependent Claim
41 words
A piezoelectric motor according to claim 30, wherein the second piezoelectric oscillator includes at least one plate having one end held in the body of the second piezoelectric oscillator, and the other end providing a working surface of the same oscillator.
Claim 33
Dependent Claim
27 words
A piezoelectric motor according to claim 1, wherein both the first and the second surfaces of frictional interaction are located on the first part of the rotor.
Claim 34
Dependent Claim
54 words
A piezoelectric motor according to claim 32, wherein the first part of the rotor comprises a body having at least one first surface and at least one second surface, each of said surfaces being formed by rotation of at least one length of a straight line about the axis of rotation of the rotor.
Claim 35
Dependent Claim
79 words
A piezoelectric motor according to claim 33, wherein each of said first and second surfaces of the first part of the rotor is a working surface of at least one first and second piezoelectric oscillators respectively, held in the first part of the rotor, each of the stator and the second part of the rotor including at least one plate in contact at one end thereof with a respective working surface of the first and the second piezoelectric oscillator.
Claim 36
Dependent Claim
33 words
A piezoelectric motor according to claim 33, wherein the stator includes at least one first piezoelectrical oscillator having its working surface urged against said first surface of the first part of the rotor.
Claim 37
Dependent Claim
41 words
A piezoelectric motor according to claim 35, wherein the first piezoelectric oscillator includes at least one plate having one end held in the body of the first piezoelectric oscillator and the other end providing a working surface of the same oscillator.
Claim 38
Dependent Claim
37 words
A piezoelectric motor according to claim 33, wherein the second part of the rotor includes at least one second piezoelectric oscillator having its working surface urged against said second surface of the first part of the rotor.
Claim 39
Dependent Claim
41 words
A piezoelectric motor according to claim 37, wherein the second piezoelectric oscillator includes at least one plate having one end held in the body of the second piezoelectric oscillator and the other end providing a working surface of the same oscillator.
Claim 40
Dependent Claim
36 words
A piezoelectric motor according to claim 1, wherein at least one of the first and the second piezoelectric oscillators is disposed respectively within the first and the second surfaces of frictional interaction and in contact therewith.
Claim 41
Dependent Claim
36 words
A piezoelectric motor according to claim 1, wherein at least one of the first and the second piezoelectric oscillators is disposed respectively outside the first and the second surfaces of frictional interaction and in contact therewith.
Claim 42
Dependent Claim
35 words
A piezoelectric motor according to claim 1, wherein the working surface of at least one of the first and second piezoelectric oscillators is in the plane perpendicular to the axis of rotation of the rotor.
Claim 43
Dependent Claim
32 words
A piezoelectric motor according to claim 1, wherein one of the piezoelectric elements of at least one of the first and the second oscillators is made in the form of a plate.
Claim 44
Dependent Claim
34 words
A piezoelectric motor according to claim 1, wherein one of the piezoelectric elements of least one of the first and the second oscillators is substantially, made in the form of a body of revolution.
Claim 45
Dependent Claim
38 words
A piezoelectric motor according to claim 1, wherein one of the piezoelectric elements of at least one of the first and the second oscillators is substantially made in the form of a portion of a body of revolution.
References Cited (Backward Citations)
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Cited
SU636760A1
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SU651435A1
Cited
SU632014A1
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SU642802A1
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SU661661A1
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-08-22 | 1987-02-21 | 1987-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-22 | 1991-02-21 | 1991-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-22 | 1995-02-21 | 1995-08-23 | $7700.00 | Window Closed / Lapsed |