US4471248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric motor with elastic vibration damping rotor to shaft coupling
Assignee: US Philips Corp
•
Filing: 1983-09-01
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Granted: 1984-09-11
•
Expires: 2003-09-01
Abstract
Abstract In an electric motor comprising a rotor which is connected to at least one hub on the motor shaft by means of elastic connecting elements, at least two elastic connecting elements are constructed as ribs which have a resilient action, which extends substantially radially and axially, and which connect the rotor, which in itself is clear of the motor shaft, to the hub.
Inventors
- 👤 Roland Smetana
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:09
CPC Classifications
F; F16; F16F; F16F15/00; F16F15/10; F16F15/12; F16F15/121; F16F15/124; G; G11; G11B; G11B5/00; G11B5/48; G11B5/52; G11B5/53; H; H02; H02K; H02K1/00; H02K1/06; H02K1/22; H02K1/28
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
66 words
An electric motor comprising a rotor which is connected to at least one hub mounted on the motor shaft by means of elastic connecting elements, characterized in that at least two elastic connecting elements are constructed as ribs which extend substantially radially and axially, which have a resilient action, and which connect the rotor, which in itself is clear of the motor shaft, to the hub.
Claim 2
Dependent Claim
66 words
An electric motor comprising a rotor which is connected to at least one hub mounted on the motor shaft by means of elastic connecting elements, characterized in that at least two elastic connecting elements are constructed as ribs which extend substantially radially and axially, which have a resilient action, and which connect the rotor, which in itself is clear of the motor shaft, to the hub.
Claim 3
Dependent Claim
34 words
An electric motor as claimed in claim 1, characterized in that the hub is arranged adjacent axially spaced from the rotor and the ribs connect the rotor to the hub in the axial direction.
Claim 4
Dependent Claim
51 words
An electric motor as claimed in claim 1, in which at least one elastic connecting element is constructed as a vibration absorber with a damping effect, characterized in that, in addition to the ribs which have a resilient action, there is provided at least one vibration absorber with a damping action.
Claim 5
Dependent Claim
51 words
An electric motor as claimed in claim 2, in which at least one elastic connecting element is constructed as a vibration absorber with a damping effect, characterized in that, in addition to the ribs which have a resilient action, there is provided at least one vibration adsorber with a damping action.
Claim 6
Dependent Claim
30 words
An electric motor as claimed in claim 3, characterized in that, viewed in the circumferential direction of the hub, at least one vibration absorber is arranged between two adjacent ribs.
Claim 7
Dependent Claim
30 words
An electric motor as claimed in claim 4, characterized in that, viewed in the circumferential direction of the hub, at least one vibration absorber is arranged between two adjacent ribs.
Claim 8
Dependent Claim
39 words
An electric motor as claimed in claim 1, in which the rotor is mounted on a support, characterized in that the ribs connect the support to the hub, and the support, the ribs and the hub are integrally formed.
Claim 9
Dependent Claim
39 words
An electric motor as claimed in claim 2, in which the rotor is mounted on a support, characterized in that the ribs connect the support to the hub, and the support, the ribs and the hub are integrally formed.
Claim 10
Dependent Claim
39 words
An electric motor as claimed in claim 3, in which the rotor is mounted on a support, characterized in that the ribs connect the support to the hub, and the support, the ribs and the hub are integrally formed.
Claim 11
Dependent Claim
39 words
An electric motor as claimed in claim 4, in which the rotor is mounted on a support, characterized in that the ribs connect the support to the hub, and the support, the ribs and the hub are integrally formed.
Claim 12
Dependent Claim
39 words
An electric motor as claimed in claim 5, in which the rotor is mounted on a support, characterized in that the ribs connect the support to the hub, and the support, the ribs and the hub are integrally formed.
Claim 13
Dependent Claim
39 words
An electric motor as claimed in claim 6, in which the rotor is mounted on a support, characterized in that the ribs connect the support to the hub, and the support, the ribs and the hub are integrally formed.
Claim 14
Dependent Claim
15 words
An electric motor as claimed in claim 8 wherein said ribs and hub are plastic.
Claim 15
Dependent Claim
15 words
An electric motor as claimed in claim 9 wherein said ribs and hub are plastic.
Claim 16
Dependent Claim
15 words
An electric motor as claimed in claim 10 wherein said ribs and hub are plastic.
Claim 17
Dependent Claim
15 words
An electric motor as claimed in claim 11 wherein said ribs and hub are plastic.
Claim 18
Dependent Claim
15 words
An electric motor as claimed in claim 12 wherein said ribs and hub are plastic.
Claim 19
Dependent Claim
15 words
An electric motor as claimed in claim 13 wherein said ribs and hub are plastic.
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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) | 1987-09-11 | 1988-03-12 | 1988-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-11 | 1992-03-12 | 1992-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-11 | 1996-03-12 | 1996-09-11 | $7700.00 | Window Closed / Lapsed |