Patent US4262840A successfully refreshed from Google Patents.
US4262840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotor for high operating speeds
Assignee: MAN AG
•
Filing: 1978-06-01
•
Granted: 1981-04-21
•
Expires: 1998-06-01
Abstract
Abstract A high-speed rotor constructed of elemental boron and fashioned as a hollow element such as a centrifugal drum.
Inventors
- 👤 Heinz Gronert
- 👤 Jochen Vetter
- 👤 Manfred Eckert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:45
CPC Classifications
F; F16; F16C; F16C32/00; F16C32/04; F16C32/0406; F16C32/044; B; B01; B01D; B01D45/00; B01D45/12; B01D45/14; B01D53/00; B01D53/24; B04; B04B; B04B7/00; B04B7/08; B04B7/085; F16C15/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49709
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
33 words
A rotor arrangement including a rotor element constructed as a hollow member such as a centrifugal drum operable at high peripheral speeds, characterized in that the rotor element consists essentially of elemental boron.
Claim 2
Dependent Claim
33 words
A rotor arrangement including a rotor element constructed as a hollow member such as a centrifugal drum operable at high peripheral speeds, characterized in that the rotor element consists essentially of elemental boron.
Claim 3
Dependent Claim
60 words
A rotor arrangement adapted to be operable at high peripheral speeds, characterized in that a hollow rotor shell is provided having two open end faces, and end lid means are provided for closing the respective end faces of the rotor shell, and in that at least one of the rotor shell and end lid means consists essentially of elemental boron.
Claim 4
Dependent Claim
60 words
A rotor arrangement adapted to be operable at high peripheral speeds, characterized in that a hollow rotor shell is provided having two open end faces, and end lid means are provided for closing the respective end faces of the rotor shell, and in that at least one of the rotor shell and end lid means consists essentially of elemental boron.
Claim 5
Dependent Claim
17 words
A rotor arrangement according to claim 2, characterized in that the rotor shell consists of elemental boron.
Claim 6
Dependent Claim
23 words
A rotor arrangement according to claim 2, characterized in that both the rotor shell and the end lid means consist of elemental boron.
Claim 7
Dependent Claim
27 words
A rotor arrangement according to claim 4, characterized in that at least one end lid means is integrally formed at one end face of the rotor shell.
Claim 8
Dependent Claim
29 words
A rotor arrangement according to claim 5, characterized in that means are provided at inner zones of each of said lid means for stress equalization of the rotor arrangement.
Claim 9
Dependent Claim
27 words
A rotor arrangement according to claim 6, characterized in that said stress equalization means are formed as support rings received on extensions provided on the lid means.
Claim 10
Dependent Claim
18 words
A rotor arrangement according to claim 7, characterized in that the support rings consist essentially of elemental boron.
Claim 11
Dependent Claim
35 words
A rotor arrangement according to claim 5, characterized in that means are provided at each of the end lid means, along inner zones thereof, for receiving at least one of bearing means and drive means.
Claim 12
Dependent Claim
53 words
A rotor arrangement according to claim 9, characterized in that, in inner zones of the end lid means, at transitions of the end lid means to the rotor shell, and toward an inner contour of the rotor shell, the end lid means are configured so as to be optimal from a stress viewpoint.
Claim 13
Dependent Claim
19 words
A rotor arrangement according to claim 10, characterized in that the rotor includes a plurality of individual tubular sections.
Claim 14
Dependent Claim
33 words
A rotor arrangement according to claim 10, characterized in that the rotor shell is fashioned with a geometrically undisturbed tubular outer surface for permitting rotation of the rotor arrangement in a sub-critical range.
Claim 15
Dependent Claim
33 words
A rotor arrangement according to claim 12, characterized in that inwardly directed annular fold-like interruptions are provided in the tubular outer surface so as to form individual tubular sections in the rotor shell.
Claim 16
Dependent Claim
37 words
A rotor arrangement according to claim 13, disposed in a housing, characterized in that means are provided for vertically mounting the rotor shell in the housing including spherical bearing means for supporting a bottom of the rotor.
Claim 17
Dependent Claim
34 words
A rotor arrangement according to claim 13, arranged in a housing, characterized in that magnetic bearing means are provided for supporting the rotor in the housing at least at one end of the rotor.
Claim 18
Dependent Claim
30 words
A rotor arrangement according to claim 13, arranged in a housing, characterized in that magnetic bearing means are provided for centering an upper end of the rotor in the housing.
Claim 19
Dependent Claim
27 words
A rotor arrangement according to claim 13, in a housing, characterized in that gas bearing means are provided for supporting and centering the rotor in the housing.
Claim 20
Dependent Claim
34 words
A rotor arrangement according to claim 13, characterized in that the rotor further includes a turbine means, and in that gas jet means are operatively associated with the turbine means for driving the rotor.
Claim 21
Dependent Claim
33 words
A rotor arrangement according to claim 2, characterized in that the rotor shell is fashioned with a geometrically undistributed tubular outer surface for permitting rotation of the rotor arrangement in a sub-critical range.
Claim 22
Dependent Claim
19 words
A rotor arrangement according to claim 2, characterized in that the rotor includes a plurality of individual tubular sections.
Claim 23
Dependent Claim
33 words
A rotor arrangement according to claim 2, characterized in that inwardly directed annular fold-like interruptions are provided in the tubular outer surface so as to form individual tubular sections in the rotor shell.
Claim 24
Dependent Claim
37 words
A rotor arrangement according to claim 2, disposed in a housing, characterized in that means are provided for vertically mounting the rotor shell in the housing including spherical bearing means for supporting a bottom of the rotor.
Claim 25
Dependent Claim
34 words
A rotor arrangement according to claim 2, arranged in a housing, characterized in that magnetic bearing means are provided for supporting the rotor in the housing at least at one end of the rotor.
Claim 26
Dependent Claim
30 words
A rotor arrangement according to claim 2, arranged in a housing, characterized in that magnetic bearing means are provided for centering an upper end of the rotor in the housing.
Claim 27
Dependent Claim
27 words
A rotor arrangement according to claim 2, in a housing, characterized in that gas bearing means are provided for supporting and centering the rotor in the housing.
Claim 28
Dependent Claim
34 words
A rotor arrangement according to claim 2, characterized in that the rotor further includes a turbine means, and in that gas jet means are operatively associated with the turbine means for driving the rotor.
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) | 1984-04-20 | 1984-10-20 | 1985-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-20 | 1988-10-20 | 1989-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-20 | 1992-10-20 | 1993-04-21 | $7700.00 | Window Closed / Lapsed |