US3594598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spark-suppressing commutator arrangement for electric motor
Assignee: Buehler GmbH
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Filing: 1969-10-06
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Granted: 1971-07-20
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Expires: 1989-10-06
Abstract
Abstract An electric motor with quenching capacitors, particularly a miniature motor of this type, has a carrier ring supporting the capacitors and seated on the rotor shaft concentric therewith. The ring is secured to soldering flags which also connect the capacitors with the commutator segments of the rotor whereby all the capacitors can be assembled as a structural unit on the rotor without causing imbalances and can also be conveniently connected to the commutator segments of the rotor.
Inventors
- 👤 Gerhard Schaub
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:49
CPC Classifications
H; H02; H02K; H02K11/00; H02K11/02; H02K11/028
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
80 words
An electric motor including a rotor with a segmented commutator, each of the commutator segments being connected to quenching capacitors, said motor comprising in combination: a plurality of quenching capacitors; a common annular carrier for said capacitors, said capacitors being secured to one side of said carrier forming a ring-shaped structural unit therewith, said unit being supported by a rotor; and a plurality of soldering flags electrically connected to the commutator segments and each soldered to one of the capacitors.
Claim 2
Dependent Claim
80 words
An electric motor including a rotor with a segmented commutator, each of the commutator segments being connected to quenching capacitors, said motor comprising in combination: a plurality of quenching capacitors; a common annular carrier for said capacitors, said capacitors being secured to one side of said carrier forming a ring-shaped structural unit therewith, said unit being supported by a rotor; and a plurality of soldering flags electrically connected to the commutator segments and each soldered to one of the capacitors.
Claim 3
Dependent Claim
26 words
The electric motor according to claim 1 wherein said capacitors are in the form of ring segments secured to said carrier side in circumferentially spaced relationship.
Claim 4
Dependent Claim
32 words
The electric motor according to claim 2 wherein said flags terminate in soldering strips radially disposed with reference to the rotational axis of the rotor, said strips being soldered to the capacitors.
Claim 5
Dependent Claim
21 words
The electric motor according to claim 8 wherein said structural unit is supported on a shaft of the rotor coaxially therewith.
Claim 6
Dependent Claim
32 words
The electric motor according to claim 2 wherein each of said soldering flags is integral with a respective commutator segment and embedded in an insulation sleeve slidably fitted upon the rotor shaft.
Claim 7
Dependent Claim
64 words
The electric motor according to claim 1 wherein said annular carrier comprises a ring of semiconducting material, said one side of the ring being coated with a layer of electrically nonconducting material, and wherein a plurality of electrically conducting areas is adhered spaced apart to said nonconducting layer, said conducting areas in conjunction with said semiconducting ring and the nonconducting layer constituting said capacitors.
Claim 8
Dependent Claim
17 words
The electric motor according to claim 6 wherein said electrically conducting areas consist of deposited solderable metal.
Claim 9
Dependent Claim
32 words
The electric motor according to claim 6 wherein said electrically conducting areas are in the form of substantially equally sized and shaped ring segments circumferentially spaced from each other by radial gaps.
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) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |