US3609422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wobble element motor
Assignee: AT&T Teletype Corp
•
Filing: 1969-12-17
•
Granted: 1971-09-28
•
Expires: 1989-12-17
Abstract
Abstract An inductance coil structure of spherical configuration comprises a movable element for driving the motor. It is wobbleably mounted concentrically of an angularly offset section of the output shaft of the motor for generating motor output torque responsively to the wobbling. A permanent magnet provides a spherical airgap within which magnetic flux induced by current flow in the coil structure coacts with the flux field of the magnet to wobble the movable element. Serially connected coils of said structure are disposed in opposed quadrants of the configuration to simultaneously push and pull the movable element and produce the wobble movement their in any selected direction, thereby to selectively vary the extent and direction of shaft movement about its axis of rotation.
Inventors
- 👤 Robert W Nordin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:33
CPC Classifications
G; G01; G01D; G01D9/00; G01D9/38; G01D5/00; G01D5/12
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
77 words
In a motor having a movable element which is wobblably mounted about an axis offset from the axis of rotation of an output shaft of said motor, an improvement wherein the movable element is spherical and characterized by: means for generating a force field about said movable element, and means for producing a force to coact with said force field and develop a force vector tangent to the surface of said movable element for effecting wobbling thereof.
Claim 2
Dependent Claim
77 words
In a motor having a movable element which is wobblably mounted about an axis offset from the axis of rotation of an output shaft of said motor, an improvement wherein the movable element is spherical and characterized by: means for generating a force field about said movable element, and means for producing a force to coact with said force field and develop a force vector tangent to the surface of said movable element for effecting wobbling thereof.
Claim 3
Dependent Claim
21 words
A combination according to claim 1 wherein the generating means comprises a magnetic stator the force field and force being magnetic.
Claim 4
Dependent Claim
23 words
A combination according to claim 1 wherein the generating means comprises a magnetic stator having a spherical gap disposed about said movable element.
Claim 5
Dependent Claim
23 words
A combination according to claim 3 wherein said movable element is spherical, and has inner and outer spherical surfaces disposed in said gap.
Claim 6
Dependent Claim
28 words
A combination according to claim 4 wherein the stator is a permanent magnet and comprises concentric convex and concave magnetic poles disposed within and without said movable element.
Claim 7
Dependent Claim
23 words
A combination according to claim 1 wherein said producing means comprises a plurality of electrical inductance coils disposed spherically about said movable element.
Claim 8
Dependent Claim
40 words
A combination according to claim 6 wherein said coils are paired in opposed quadrants of said movable element for simultaneously pushing and pulling said movable element from opposed positions to effect angular movement of said shaft in a selected direction.
Claim 9
Dependent Claim
21 words
A combination according to claim 7 wherein said coils are limited to the equator and one hemisphere of said movable element.
Claim 10
Dependent Claim
14 words
A combination according to claim 8 wherein the coils are of generally triangular configuration.
Claim 11
Dependent Claim
18 words
A combination according to claim 7 wherein each coil of each pair is series-connected with the other thereof.
Claim 12
Dependent Claim
86 words
In a wobble drive motor of the type having an output shaft arranged for movement about its longitudinal axis and a section angularly offset from said shaft, the combination in an element arranged for wobbling on said section in association with movement of said shaft angularly about its axis, and comprising: a spherical shell; electrical coil means carried from said shell; and magnetic means mounted within and without said shell for generating a shell-driving torque upon passage of an electrical current in said electrical coil means.
Claim 13
Dependent Claim
86 words
In a wobble drive motor of the type having an output shaft arranged for movement about its longitudinal axis and a section angularly offset from said shaft, the combination in an element arranged for wobbling on said section in association with movement of said shaft angularly about its axis, and comprising: a spherical shell; electrical coil means carried from said shell; and magnetic means mounted within and without said shell for generating a shell-driving torque upon passage of an electrical current in said electrical coil means.
Claim 14
Dependent Claim
22 words
A combination according to claim 11 wherein said coils are embedded in said shell for insulating adjoining coil loops one from another.
Claim 15
Dependent Claim
69 words
A combination according to claim 11 wherein said magnetic means comprises: a spherical magnetic body disposed within said shell and about said shaft and said input section and defining a first magnetic pole, and a magnetic member having a shell socket with a radius of curvature on a center common with the radius of curvature of said spherical magnetic body and defining a second magnetic pole outside said shell.
Claim 16
Dependent Claim
53 words
A combination according to claim 13 wherein said magnetic means further comprises: an apertured permanent magnet; an apertured pole piece secured from one pole of said permanent magnet; aNd a magnetic stem secured to said pole piece and extending through the aperture in said magnet in supportive association with said spherical magnetic body.
Claim 17
Dependent Claim
23 words
A combination according to claim 14 wherein said magnetic member is a polar element secured from the other pole of said permanent magnet.
Claim 18
Dependent Claim
142 words
In a motor wherein a magnetic movable element is arranged for wobbling about the offset end section of an output shaft for production of output torque about the axis of said shaft and in response to magnetic flux variation, the improvement in a stator comprising: an apertured permanent magnet with opposed polar faces; a first pole piece connected to one of the faces of said permanent magnet and disposed adjacent said movable element; a second pole piece having an opening aligned with the aperture in said permanent magnet and connected to the other of the faces thereof; a polar extension from said first pole piece projecting through the aperture in said permanent magnet and having a part disposed in said opening; and means for generating a force in coaction with the flux field of said permanent magnet to wobble said movable element.
Claim 19
Dependent Claim
142 words
In a motor wherein a magnetic movable element is arranged for wobbling about the offset end section of an output shaft for production of output torque about the axis of said shaft and in response to magnetic flux variation, the improvement in a stator comprising: an apertured permanent magnet with opposed polar faces; a first pole piece connected to one of the faces of said permanent magnet and disposed adjacent said movable element; a second pole piece having an opening aligned with the aperture in said permanent magnet and connected to the other of the faces thereof; a polar extension from said first pole piece projecting through the aperture in said permanent magnet and having a part disposed in said opening; and means for generating a force in coaction with the flux field of said permanent magnet to wobble said movable element.
Claim 20
Dependent Claim
19 words
A combination according to claim 16 wherein said generating means comprises electrical coil means connected to said movable element.
Claim 21
Dependent Claim
25 words
A combination according to claim 16 wherein said polar extension and said second pole piece define an airgap, said movable element disposed in said airgap.
Claim 22
Dependent Claim
22 words
A combination according to claim 16 wherein the output shaft projects through the aperture in said permanent magnet and said polar extension.
Claim 23
Dependent Claim
16 words
A combination according to claim 19 characterized by a shaft bearing secured in first pole piece.
Claim 24
Dependent Claim
21 words
A combination according to claim 19 characterized in that said offset end portion is bent from said shaft in said part.
Claim 25
Dependent Claim
27 words
A combination according to claim 21 wherein said part is a spherical body having a passage therethrough for said shaft with a conical section for said extension.
Claim 26
Dependent Claim
97 words
In a motor wherein torque is produced by applying a force to an output shaft extension inclined to the axis of a shaft producing the torque, an improvement comprising: a spherical body having a center of curvature defined by the intersection of the axes of said shaft and said shaft extension; a mounting component from said body disposed about said shaft extension; universal moving means associated with said mounting component for enabling transmission of force from said body to said shaft extension; and means for restraining movement of said body about the axis of said shaft extension.
Claim 27
Dependent Claim
97 words
In a motor wherein torque is produced by applying a force to an output shaft extension inclined to the axis of a shaft producing the torque, an improvement comprising: a spherical body having a center of curvature defined by the intersection of the axes of said shaft and said shaft extension; a mounting component from said body disposed about said shaft extension; universal moving means associated with said mounting component for enabling transmission of force from said body to said shaft extension; and means for restraining movement of said body about the axis of said shaft extension.
Claim 28
Dependent Claim
21 words
A combination according to claim 23 wherein said mounting component comprises a projection from said body concentric with said shaft extension.
Claim 29
Dependent Claim
17 words
A combination according to claim 24 wherein said projection is in the form of a truncated cone.
Claim 30
Dependent Claim
43 words
A combination according to claim 24 wherein said universal moving means comprises a bearing assembly arranged about said shaft extension in engagement with said projection at a position remote from said body for enabling relative movement of said body and said shaft extension.
Claim 31
Dependent Claim
100 words
A combination according to claim 26 wherein the restraining means includes: an arcuate linkage having a first end portion secured to said projection about said bearing means, a second end portion connected at a fixed position remote from said body for enabling motion of said body in response to a torque about one of the axes of said body and preventing motion of said body in response to a torque about another of its axes, and a medial pivotally linked portion for enabling movement of said body in response to torque about the third of the axes of said body.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |