Patent US4565936A successfully refreshed from Google Patents.
US4565936A
Expired / Lapsed
US
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Rotor for rotary machine
Assignee: Mitsubishi Electric Corp
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Filing: 1984-09-05
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Granted: 1986-01-21
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Expires: 2004-09-05
Abstract
Abstract A rotor for rotary machines of a type having a fan on a side surface of a magnetic field core in which there are provided recessed portions for holding lead wires at portions of the fan so that the fan can be fixed to the rotary shaft of the machine after making the connection between the lead wire of the magnetic field core and a slip ring.
Inventors
- 👤 Takashi Ikegami
- 👤 Masakazu Mori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:11
CPC Classifications
H; H02; H02K; H02K13/00; H02K13/02; H02K9/00; H02K9/02; H02K9/04; H02K9/06
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
113 words
A rotor for rotary machines, comprising: a rotary shaft; magnetic field cores fixed to said rotary shaft and having an annular recessed portion; a magnetic field coil received within said recessed portion; slit rings mounted on said rotary shaft at one side of said magnetic field cores for supplying electric current to said field coil; lead wires introduced at outsides of said magnetic field cores from said magnetic field coil and connected via terminals to said slip rings; and a fan fixed at one side of said magnetic field cores and having holding portions for firmly holding said lead wires; wherein said holding portions are formed by recessed portions formed on said fan.
Claim 2
Dependent Claim
113 words
A rotor for rotary machines, comprising: a rotary shaft; magnetic field cores fixed to said rotary shaft and having an annular recessed portion; a magnetic field coil received within said recessed portion; slit rings mounted on said rotary shaft at one side of said magnetic field cores for supplying electric current to said field coil; lead wires introduced at outsides of said magnetic field cores from said magnetic field coil and connected via terminals to said slip rings; and a fan fixed at one side of said magnetic field cores and having holding portions for firmly holding said lead wires; wherein said holding portions are formed by recessed portions formed on said fan.
Claim 3
Dependent Claim
25 words
The rotor for rotary machines according to claim 1, wherein said holding portions are arranged at two portions angularly opposite each other on said fan.
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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) | 1989-01-20 | 1989-07-22 | 1990-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-20 | 1993-07-22 | 1994-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-20 | 1997-07-22 | 1998-01-21 | $7700.00 | Window Closed / Lapsed |