US3555322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Noncontact rotary converter
Assignee: Individual
•
Filing: 1968-04-11
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Granted: 1971-01-12
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Expires: 1988-04-11
Abstract
Abstract A noncontact rotary converter wherein a synchronous motor with claw-shaped poles and an inductor generator are mounted in a common ferromagnetic frame and on a common shaft and both have a common magnetic system with a common magnetic flux. The clawshaped poles are mounted in the middle of the rotor of the motor and the end portions of the rotor are inductors with the same polarity as the claw-shaped poles. A stator cooperates with the claw-shaped poles and serves as the motor stator and two further stators cooperate with the inductors in the generator.
Inventors
- 👤 Voldemar Voldemarovich Apsit
- 👤 Viktor Alexeevich Sushkevich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:44
CPC Classifications
H; H02; H02K; H02K47/00; H02K47/18; H02K47/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A noncontact rotary converter comprising a ferromagnetic frame, at least three stator cores carried by said frame, a polyphase armature winding on the middle of said cores serving as a stator of a synchronous motor of said converter, at least tow polyphase armature windings on the end cores serving as stators of inductor generators of said converter, at least two stationary field coils between said middle and end cores, a shaft accommodated in said frame, a common rotor for said motor and generators located on said shaft, said common rotor including a middle portion provided with claw-shaped poles and end portions constituted as inductors with respective pole pieces being provided with a common magnetic flux for said motor and said generators.
Claim 2
Dependent Claim
121 words
A noncontact rotary converter comprising a ferromagnetic frame, at least three stator cores carried by said frame, a polyphase armature winding on the middle of said cores serving as a stator of a synchronous motor of said converter, at least tow polyphase armature windings on the end cores serving as stators of inductor generators of said converter, at least two stationary field coils between said middle and end cores, a shaft accommodated in said frame, a common rotor for said motor and generators located on said shaft, said common rotor including a middle portion provided with claw-shaped poles and end portions constituted as inductors with respective pole pieces being provided with a common magnetic flux for said motor and said generators.
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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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |