US3832610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulse operated surface motor
Assignee: Fujitsu Ltd
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Filing: 1973-08-31
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Granted: 1974-08-27
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Expires: 1993-08-31
Abstract
Abstract A pulse operated electromagnetic drive system along a plane is referred to, as a pulse operated surface motor in the present disclosure. The pulse operated motor is comprised of a plane-like stator, a first movable body which is restrained to move only in a first direction on the stator, a second movable body located on the first movable body which is restrained to individually move only in a second direction on the stator but which moves together with the first movable body in the first direction perpendicular to the second direction and sliders which are fixed to said first or second movable body, cooperate electromagnetically with said plane-like stator.
Inventors
- 👤 K Shimizu
- 👤 H Shichida
- 👤 K Toyoda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:33
CPC Classifications
H; H02; H02K; H02K41/00; H02K41/02; H02K41/03; H02K2201/00; H02K2201/18
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
137 words
A pulse operated surface motor comprising: a stator having magnetic materials and non-magnetic materials arranged at predetermined intervals both in first and second directions perpendicular to each other on a surface of the stator, the magnetic materials forming stator teeth acting as pole pieces; a first movable body being restrained to move only in said first direction; a second movable body located on the first movable body, which is restrained to individually move only in said second direction but which moves together with said first movable body in said first direction, wherein the second movable body is provided with both a first slider cooperating electromagnetically with said stator teeth arranged at said predetermined intervals in said first direction and a second slider cooperating electromagnetically with said stator teeth arranged at said predetermined intervals in said second direction.
Claim 2
Dependent Claim
137 words
A pulse operated surface motor comprising: a stator having magnetic materials and non-magnetic materials arranged at predetermined intervals both in first and second directions perpendicular to each other on a surface of the stator, the magnetic materials forming stator teeth acting as pole pieces; a first movable body being restrained to move only in said first direction; a second movable body located on the first movable body, which is restrained to individually move only in said second direction but which moves together with said first movable body in said first direction, wherein the second movable body is provided with both a first slider cooperating electromagnetically with said stator teeth arranged at said predetermined intervals in said first direction and a second slider cooperating electromagnetically with said stator teeth arranged at said predetermined intervals in said second direction.
Claim 3
Dependent Claim
143 words
A pulse operated surface motor comprising: a stator having magnetic materials and non-magnetic materials arranged at predetermined intervals both in first and second directions perpendicular to each other on a surface of the stator, the magnetic materials forming stator teeth acting as pole pieces; a first movable body being restrained to move only in said first direction; a second movable body located on the first movable body, which is restrained to individually move only in said second direction but which moves together with said first movable body in said first direction, wherein the first movable body is provided with a first slider cooperating electromagnetically with said stator teeth arranged at said predetermined intervals in said first direction and said second movable body is provided with a second slider cooperating electromagnetically with said stator teeth arranged at said predetermined intervals in said second direction.
Claim 4
Dependent Claim
143 words
A pulse operated surface motor comprising: a stator having magnetic materials and non-magnetic materials arranged at predetermined intervals both in first and second directions perpendicular to each other on a surface of the stator, the magnetic materials forming stator teeth acting as pole pieces; a first movable body being restrained to move only in said first direction; a second movable body located on the first movable body, which is restrained to individually move only in said second direction but which moves together with said first movable body in said first direction, wherein the first movable body is provided with a first slider cooperating electromagnetically with said stator teeth arranged at said predetermined intervals in said first direction and said second movable body is provided with a second slider cooperating electromagnetically with said stator teeth arranged at said predetermined intervals in said second direction.
Claim 5
Dependent Claim
145 words
A pulse operated surface motor comprising: a stator, a surface of which is provided with a first area and a second area separated from each other said first are having magnetic materials forming first stator teeth and non-magnetic materials arranged at predetermined intervals in a first direction and said second area having magnetic materials forming second stator teeth in a second direction perpendicular to said first direction; a first movable body being restrained to move only in said first direction and which is provided with a first slider which cooperates electromagnetically with said first stator teeth; a second movable body located on the first movable body, which is restrained to individually move only in said second direction but which moves together with said first movable body in said first direction, and which is provided with second slider teeth cooperating electromagnetically with said second stator teeth.
Claim 6
Dependent Claim
145 words
A pulse operated surface motor comprising: a stator, a surface of which is provided with a first area and a second area separated from each other said first are having magnetic materials forming first stator teeth and non-magnetic materials arranged at predetermined intervals in a first direction and said second area having magnetic materials forming second stator teeth in a second direction perpendicular to said first direction; a first movable body being restrained to move only in said first direction and which is provided with a first slider which cooperates electromagnetically with said first stator teeth; a second movable body located on the first movable body, which is restrained to individually move only in said second direction but which moves together with said first movable body in said first direction, and which is provided with second slider teeth cooperating electromagnetically with said second stator teeth.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-26 | 1978-02-25 | 1978-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-26 | 1982-02-25 | 1982-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-26 | 1986-02-25 | 1986-08-27 | $7700.00 | Window Closed / Lapsed |