Patent US3723796A successfully refreshed from Google Patents.
US3723796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-armature motor
Assignee: Individual
•
Filing: 1972-03-20
•
Granted: 1973-03-27
•
Expires: 1992-03-20
Abstract
Abstract A plurality of armatures are supported in parallel spaced relation in a circular array between interdigitated magnetic pole pieces energized by a central coil.
Inventors
- 👤 E Mason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:55
CPC Classifications
H; H02; H02K; H02K16/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
150 words
A multiple motor assembly, comprising: first and second disks arranged in coaxial spaced parallel relation and each having a plurality of radially spaced enlarged finger portions connected with its periphery and projecting laterally of one flat surface of the respective said disk, the finger portions of said first disk being arranged in interdigitated relation with the finger portions of said second disk, each said finger portion having oppositely disposed coextensive arcuate recesses formed therein extending parallel with the axis of said disks and in opposed confronting relation with like arcuate recesses formed in adjacent finger portions defining armature receiving openings between adjacent finger portions; an armature within each armature receiving opening; a plate overlying each said disk; magnetic field generating means between said disks; and, means connecting said field generating means with said first and said second disks to generate a magnetic field at each of said armature receiving openings.
Claim 2
Dependent Claim
150 words
A multiple motor assembly, comprising: first and second disks arranged in coaxial spaced parallel relation and each having a plurality of radially spaced enlarged finger portions connected with its periphery and projecting laterally of one flat surface of the respective said disk, the finger portions of said first disk being arranged in interdigitated relation with the finger portions of said second disk, each said finger portion having oppositely disposed coextensive arcuate recesses formed therein extending parallel with the axis of said disks and in opposed confronting relation with like arcuate recesses formed in adjacent finger portions defining armature receiving openings between adjacent finger portions; an armature within each armature receiving opening; a plate overlying each said disk; magnetic field generating means between said disks; and, means connecting said field generating means with said first and said second disks to generate a magnetic field at each of said armature receiving openings.
Claim 3
Dependent Claim
25 words
The multiple motor assembly according to claim 1 in which each arcuate recess in said finger portions extend through an arc less than 180* .
Claim 4
Dependent Claim
40 words
The multiple motor assembly according to claim 2 in which said magnetic field generating means includes: an iron core extending coaxially between said disks; and, a wire wound around said core forming a coil surrounded by said interdigitated finger portions.
Claim 5
Dependent Claim
62 words
The multiple motor assembly according to claim 3 in which said connecting means includes: a shaft connecting the iron core with the respective said disk; and, a source of electrical energy connected with said coil whereby the finger portions on one said disk form north magnetic pole pieces and the finger portions on the other said disk form south magnetic pole pieces.
Claim 6
Dependent Claim
30 words
The multiple motor assembly according to claim 4 and further including: a like plurality of radial arms extending between and connecting the respective finger portion with the respective said disk.
Claim 7
Dependent Claim
23 words
The multiple motor assembly according to claim 5 in which said finger portions are coextensive with each other when disposed in interdigitated relation.
Claim 8
Dependent Claim
36 words
The multiple motor assembly according to claim 6 in which each said armature is provided with an armature shaft projecting through the respective said plate; and, bearings on the respective said plate journalling said armature shafts.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |