US4097758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coaxial disk stack acyclic machine
Assignee: General Electric Co
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Filing: 1976-08-02
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Granted: 1978-06-27
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Expires: 1996-08-02
Abstract
Abstract A plural disk acyclic machine employs an outer axial stack of low reluctance, electrically conductive disks about an inner axial stack of such disks, both stacks being rotatable about a central shaft. Conductive means interconnect each disk in each stack, and an axially-directed magnetic field is established through each stack such that magnetic flux cuts rotatable disks along its path in the machine, except at the end caps of the machine.
Inventors
- 👤 Kenneth W. Jenkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:27
CPC Classifications
H; H02; H02K; H02K31/00
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
94 words
A radial type acyclic machine comprising: a central, axial shaft; a first plurality of low magnetic reluctance, electrically conductive disks centered about said shaft and positioned in a first axial stack rotatable about said shaft; a second plurality of low magnetic reluctance, electrically conductive disks positioned in a second axial stack about said first axial stack and rotatable about said shaft; conductive means electrically interconnecting each disk in each of said first and second pluralities of disks; and means establishing an axially-directed magnetic field through each of said first and second pluralities of disks.
Claim 2
Dependent Claim
94 words
A radial type acyclic machine comprising: a central, axial shaft; a first plurality of low magnetic reluctance, electrically conductive disks centered about said shaft and positioned in a first axial stack rotatable about said shaft; a second plurality of low magnetic reluctance, electrically conductive disks positioned in a second axial stack about said first axial stack and rotatable about said shaft; conductive means electrically interconnecting each disk in each of said first and second pluralities of disks; and means establishing an axially-directed magnetic field through each of said first and second pluralities of disks.
Claim 3
Dependent Claim
36 words
The apparatus of claim 1 wherein said means established an axially directed magnetic field includes a magnetic pole piece rotatable about said shaft and rigidly affixed to each of said first and second pluralities of disks.
Claim 4
Dependent Claim
72 words
The apparatus of claim 2 wherein said conductive means includes a plurality of disks rigidlly affixed to said shaft and positioned axially between successive disks in each of said first and second pluralities of disks, each rigidly affixed disk connected near its innermost periphery to the nearest rotatable disk on one of its sides and being connected near its outermost periphery to the nearest rotatable disk on the other of its sides.
Claim 5
Dependent Claim
28 words
The apparatus of claim 3 wherein said magnetic pole piece is electrically conductive and connected in series with the disks of said first and second pluralities of disks.
Claim 6
Dependent Claim
56 words
The apparatus of claim 1 wherein said means establishing an axially directed magnetic field includes a pole piece rotatable about said shaft and rigidly affixed to each of said first and second plurality of disks, said pole piece being electrically conductive and connected in series with the disks of said first and second pluralities of disks.
Claim 7
Dependent Claim
31 words
The apparatus of claim 1 wherein said conductive means includes liquid metal positioned to bridge a gap between rotating and stationary surfaces at two different radial locations on each rotating disk.
Claim 8
Dependent Claim
31 words
The apparatus of claim 2 wherein said conductive means includes liquid metal positioned to bridge a gap between rotating and stationary surfaces at two different radial locations on each rotating disk.
Claim 9
Dependent Claim
29 words
The apparatus of claim 1 wherein said means establishing an axially directed magnetic field comprises magnetic field generating means situated between said first and second axial stacks of disks.
Claim 10
Dependent Claim
29 words
The apparatus of claim 2 wherein said means establishing an axially directed magnetic field comprises magnetic field generating means situated between said first and second axial stacks of disks.
Claim 11
Dependent Claim
23 words
The apparatus of claim 8 including a magnetic pole piece situated at each end of said first and second axial stacks of disks.
Claim 12
Dependent Claim
41 words
The apparatus of claim 9 including a second magnetic pole piece rigidly affixed to said shaft, each of said magnetic poles being comprised of electrically conductive material and connected in series with each of said first and second pluralities of disks.
Claim 13
Dependent Claim
44 words
The apparatus of claim 10 wherein said magnetic field generating means situated between said first and second axial stacks of disks is rigidly affixed to one of said magnetic pole pieces, said one of said magnetic pole pieces being rigidly affixed to said shaft.
Claim 14
Dependent Claim
67 words
The apparatus of claim 1 wherein said means establishing an axially directed magnetic field includes first and second magnetic pole pieces situated at each axial end of said first and second pluralities of disks, said first pole piece being rotatable about said shaft and rigidly affixed to each of said first and second pluralities of disks, and said second pole piece being rigidly affixed to said shaft.
Claim 15
Dependent Claim
53 words
The apparatus of claim 2 wherein said magnetic pole piece is located at one axial end of each of said first and second axial stacks of disks, and further including a second magnetic pole piece rigidly affixed to said shaft at the opposite ends of said first and second axial stacks of disks.
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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) | 1981-06-26 | 1981-12-26 | 1982-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-26 | 1985-12-26 | 1986-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-26 | 1989-12-26 | 1990-06-27 | $7700.00 | Window Closed / Lapsed |