US3407319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic brakes incorporated in electric motors
Assignee: INDUSTRIAS ZALDI SA
•
Filing: 1966-01-25
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Granted: 1968-10-22
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Expires: 1986-01-25
Abstract
No abstract record available.
Inventors
- 👤 Arraiza Fermin Sagues
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:28
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/10; H02K7/102; H02K7/1021; H02K7/1026; H02K7/1028
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
A MAGNETIC BRAKE FOR INCORPORATION IN ELECTRIC MOTORS COMPRISING, A FIXED PLATE JOINED TO THE STATOR OF THE MOTOR AND A PLATE JOINED TO THE ROTOR AND ROTATIVE WITH IT, THE LATTER PLATE HAVING AXIAL MOVEMENT, THE PLATE ON THE STATOR BEING OF ANNULAR FORM AND HAVING PERMANENT MAGNETS ON IT, SAID PLATE CONSTITUTING A COVER THAT HOUSES THE FIXED PLATE AND THE MAGNETS IN A MANNER TO PROVIDE A FIXED ARMATURE THAT TERMINATES IN TWO ANNULAR CONCENTRIC ZONES, THE INNER OF WHICH IS FORMED BY AN EDGE OF THE PLATE THAT CARRIES THE MAGNETS, AND OUTER ZONE BEING FORMED BY AN INNER CUT IN THE COVER THE ROTOR-BEARING PLATE BEING BORNE BY THE MOTOR SHAFT BEING APPLIED BY MAGNETIC ATTRACTION AGAINST SAID ZONES TO THEREBY ESTABLISH A MAGNETIC CIRCUIT GENERATED BY THE PERMANENT MAGNETS CLOSED TRANSVERSELY AT THE PERIPHERY OF THE ASSEMBLY BY A CUT IN THE SUPPORT AND THE EDGE OF THE FIXED PLATE AND THE PERIPHERAL ZONE OF THE MOVABLE PLATE.
Claim 2
Dependent Claim
164 words
A MAGNETIC BRAKE FOR INCORPORATION IN ELECTRIC MOTORS COMPRISING, A FIXED PLATE JOINED TO THE STATOR OF THE MOTOR AND A PLATE JOINED TO THE ROTOR AND ROTATIVE WITH IT, THE LATTER PLATE HAVING AXIAL MOVEMENT, THE PLATE ON THE STATOR BEING OF ANNULAR FORM AND HAVING PERMANENT MAGNETS ON IT, SAID PLATE CONSTITUTING A COVER THAT HOUSES THE FIXED PLATE AND THE MAGNETS IN A MANNER TO PROVIDE A FIXED ARMATURE THAT TERMINATES IN TWO ANNULAR CONCENTRIC ZONES, THE INNER OF WHICH IS FORMED BY AN EDGE OF THE PLATE THAT CARRIES THE MAGNETS, AND OUTER ZONE BEING FORMED BY AN INNER CUT IN THE COVER THE ROTOR-BEARING PLATE BEING BORNE BY THE MOTOR SHAFT BEING APPLIED BY MAGNETIC ATTRACTION AGAINST SAID ZONES TO THEREBY ESTABLISH A MAGNETIC CIRCUIT GENERATED BY THE PERMANENT MAGNETS CLOSED TRANSVERSELY AT THE PERIPHERY OF THE ASSEMBLY BY A CUT IN THE SUPPORT AND THE EDGE OF THE FIXED PLATE AND THE PERIPHERAL ZONE OF THE MOVABLE PLATE.
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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) | 1971-10-22 | 1972-04-22 | 1972-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-22 | 1976-04-22 | 1976-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-22 | 1980-04-22 | 1980-10-22 | $7700.00 | Window Closed / Lapsed |