US3856200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Damping device for rapidly spinning rotary body
Assignee: MAN AG
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Filing: 1972-05-11
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Granted: 1974-12-24
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Expires: 1992-05-11
Abstract
Abstract A damping device for a rotating body spinning at high speeds and supported in an axially and/or radially damped thrust bearing, in which a magnet system is arranged in the housing, which is securely coupled to the rotating body, and in the damping member immersed in the damping oil within the housing; the magnet system consists of two poles disposed mutually opposite and of like polarity to produce a repelling force between the poles.
Inventors
- 👤 H Lieb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:39
CPC Classifications
F; F16; F16C; F16C27/00; F16C27/08; B; B04; B04B; B04B9/00; B04B9/12; B04B9/14; F16C39/00; F16C39/06; F16C39/063; F16F; F16F15/00; F16F15/02; F16F15/03
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
135 words
A device for damping a rapidly spinning rotary body supported in a damped thrust bearing means, which includes a housing nearly completely filled with a damping oil arranged between the rotary body and the thrust bearing means and positively coupled with the rotary body, and a damping means immersed in said housing, said damping means being movably connected with the housing and being movable against a restoring force relative to the housing, and the housing being connected, by way of a flexible support means, with a bearing pin which is carried in the thrust bearing means and axially supports the damping means, characterized by a system of magnets arranged in both the housing and the damping means including magnet means forming two magnetized poles of the same sign which are disposed mutually opposite one another.
Claim 2
Independent Claim
135 words
A device for damping a rapidly spinning rotary body supported in a damped thrust bearing means, which includes a housing nearly completely filled with a damping oil arranged between the rotary body and the thrust bearing means and positively coupled with the rotary body, and a damping means immersed in said housing, said damping means being movably connected with the housing and being movable against a restoring force relative to the housing, and the housing being connected, by way of a flexible support means, with a bearing pin which is carried in the thrust bearing means and axially supports the damping means, characterized by a system of magnets arranged in both the housing and the damping means including magnet means forming two magnetized poles of the same sign which are disposed mutually opposite one another.
Claim 3
Dependent Claim
34 words
A damping device according to claim 1, characterized in that an axially magnetized copolar ring magnet forming part of said magnet means is axially arranged in both the housing and in the damping means.
Claim 4
Dependent Claim
48 words
A damping device according to claim 1, characterized in that a radially magnetized sleeve means forming part of said magnet means is inserted into the housing, and a magnetized copolar damping member also forming part of said magnet means immerses into the interior space of said sleeve means.
Claim 5
Dependent Claim
47 words
A damping device according to claim 1, characterized in that the housing of the thrust bearing means carries at its upper end face an axially magnetized ring magnet which is opposed by a second, axially magnetized copolar ring magnet which is positively connected with the rotating housing.
Claim 6
Dependent Claim
20 words
A damping device according to claim 1, characterized in that the damping means is formed by an essentially cylindrical body.
Claim 7
Dependent Claim
19 words
A device according to claim 5, characterized in that the rotary body is a rotating barrel of a centrifuge.
Claim 8
Dependent Claim
21 words
A device according to claim 6, characterized in that the thrust bearing means is an axially and/or radially damped thrust bearing.
Claim 9
Dependent Claim
34 words
A damping device according to claim 5, characterized in that an axially magnetized copolar ring magnet forming part of said magnet means is axially arranged in both the housing and in the damping means.
Claim 10
Dependent Claim
48 words
A damping device according to claim 5, characterized in that a radially magnetized sleeve means forming part of said magnet means is inserted into the housing, and a magnetized copolar damping member also forming part of said magnet means immerses into the interior space of said sleeve means.
Claim 11
Dependent Claim
47 words
A damping device according to claim 5, characterized in that the housing of the thrust bearing means carries at its upper end face an axially magnetized ring magnet which is opposed by a second, axially magnetized copolar ring magnet which is positively connected witH the rotating housing.
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) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |