US3909646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric rotating machine
Assignee: Tri Tech Inc
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Filing: 1974-02-01
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Granted: 1975-09-30
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Expires: 1994-02-01
Abstract
Abstract An electric rotating machine including a rotor-stator device having a permanent magnet symmetrical rotor and a stator structure. The stator is in capsule form and has a pair of pole pieces and a magnetic flux transmitting structure for transmitting flux to the pair of pole pieces. The flux transmitting structure includes a pair of support members between which the rotor and stator structure are supported. The rotor is journaled for rotation in the support members. A rotatable gear assembly is supported on at least one of the support members and spaced from the rotor and stator structure to provide selective speeds in response to the rotation of the rotor. In one described embodiment the magnetic flux transmitting structure may comprise a generally U-shaped structure.
Inventors
- 👤 Arthur W Haydon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:45
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/10; H02K7/116
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
221 words
An electric rotating machine, comprising: a rotor-stator device having a permanent magnet cylindrical rotor mounted on a first shaft and a stator structure in cooperating relationship with said rotor, said stator structure including a plurality of pole pieces; a magnetic flux transmitting frame including a base plate having an integral upstanding member, and an L-shaped member having a first leg disposed in overlying relation with said upstanding member and a second leg spaced from and parallel with said base plate, said first shaft being supported by and rotatable in said base plate and said second leg and said plurality of pole pieces being in magnetic communication with said base plate and said second leg; a gear assembly housing having side walls and a partitioning wall, said housing and said base plate cooperating to define a compartment; said partitioning wall having a plurality of gear studs formed thereon and extending to said base plate for supporting gears thereon; said gears being disposed within said compartment in intermeshing, speed changing relationship whereby selected ones of said gears exhibit selected angular velocities; an electromagnetic coil wound about said overlying first leg and said upstanding member for supplying magnetic flux to energize said stator structure to cause said rotor to rotate; anD means for transferring the motive force generated by said rotor to said gears.
Claim 2
Dependent Claim
221 words
An electric rotating machine, comprising: a rotor-stator device having a permanent magnet cylindrical rotor mounted on a first shaft and a stator structure in cooperating relationship with said rotor, said stator structure including a plurality of pole pieces; a magnetic flux transmitting frame including a base plate having an integral upstanding member, and an L-shaped member having a first leg disposed in overlying relation with said upstanding member and a second leg spaced from and parallel with said base plate, said first shaft being supported by and rotatable in said base plate and said second leg and said plurality of pole pieces being in magnetic communication with said base plate and said second leg; a gear assembly housing having side walls and a partitioning wall, said housing and said base plate cooperating to define a compartment; said partitioning wall having a plurality of gear studs formed thereon and extending to said base plate for supporting gears thereon; said gears being disposed within said compartment in intermeshing, speed changing relationship whereby selected ones of said gears exhibit selected angular velocities; an electromagnetic coil wound about said overlying first leg and said upstanding member for supplying magnetic flux to energize said stator structure to cause said rotor to rotate; anD means for transferring the motive force generated by said rotor to said gears.
Claim 3
Dependent Claim
21 words
An electric rotating machine in accordance with claim 1 wherein said base plate is a cover for said gear assembly housing.
Claim 4
Dependent Claim
50 words
An electric rotating machine in accordance with claim 2 wherein said gear assembly housing further includes a bottom wall and wherein an output shaft extends between said base plate and said bottom wall, said output shaft supporting gear means that are driven by said gears supported by said gear studs.
References Cited (Backward Citations)
US3699282A
Cited
US3808491A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |