US4295803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separating machine
Assignee: Omya GmbH
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Filing: 1979-06-01
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Granted: 1981-10-20
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Expires: 1999-06-01
Abstract
Abstract Separating apparatus comprises a rotor having a plurality of impeller blades rotatably mounted in a support housing. In the normal course of apparatus use, fluid flow occurs through opposed rotor open ends. Drive motor elements for rotating the rotor are mounted partly in the rotor and partly in the surrounding casing whereby the rotor may be driven without the necessity of a drive shaft attached to the rotor, and the opposed rotor ends remain unobstructed. In one rotor embodiment, fluid enters the opposed rotor ends and is discharged radially by the rotor blades. In a second embodiment the fluid enters one rotor end and is discharged along an axial path from the opposite end.
Inventors
- 👤 Ulrich Barthelmess
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:45
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/05; F04D29/056; F04D29/058; B; B07; B07B; B07B7/00; B07B7/08; B07B7/083; F01; F01D; F01D1/00; F01D1/18; F01D1/22; F01D25/00; F01D25/16; F04D25/00; F04D25/02; F04D25/06; F04D25/0606; F16; F16C; F16C32/00; F16C32/04; F16C32/0406; F16C32/044; F16C32/047; F05; F05D; F05D2240/00; F05D2240/50; F05D2240/51; F05D2240/515; F16C2360/00; F16C32/0474; F16C32/0489; F16C32/0491
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
118 words
A flow machine for separating particles in a flowable medium, the machine having a rotor rotatably mounted in a housing, said rotor comprising two face rings spaced apart in the axial direction of the rotor and a plurality of blades extending axially therebetween, said rings being supported for rotation about their outer circumferences in the housing and at least one of the rings being driven, and an inlet and an outlet in the housing for flowable medium, said flowable medium being drawn through the flow machine so that it flows axially through the rotor and traverses the blades substantially radially as it flows between the inlet and the outlet effecting a separation of particles in the flowable medium.
Claim 2
Dependent Claim
118 words
A flow machine for separating particles in a flowable medium, the machine having a rotor rotatably mounted in a housing, said rotor comprising two face rings spaced apart in the axial direction of the rotor and a plurality of blades extending axially therebetween, said rings being supported for rotation about their outer circumferences in the housing and at least one of the rings being driven, and an inlet and an outlet in the housing for flowable medium, said flowable medium being drawn through the flow machine so that it flows axially through the rotor and traverses the blades substantially radially as it flows between the inlet and the outlet effecting a separation of particles in the flowable medium.
Claim 3
Dependent Claim
24 words
A flow machine according to claim 1, in which the flowable medium passes axially through both face rings as it flows through the machine.
Claim 4
Dependent Claim
18 words
A flow machine according to claim 1 or 2, in which the rotor is mounted on magnetic bearings.
Claim 5
Dependent Claim
61 words
A flow machine according to claim 1 or 2, in which each face ring has disposed therein a plate pack oppositely disposed to electromagnets uniformly distributed about the circumference on the housing; each ring having also mounted therein a revolving plate pack, which cooperates with electromagnetic sensors which are likewise arranged on the housing and uniformly distributed about the circumference thereof.
Claim 6
Dependent Claim
47 words
A flow machine according to claim 4, in which the rotor is driven by a drive comprising an electric motor, the rotor armature of which is formed at or on at least one of the face rings and the stator of which is formed in the housing.
Claim 7
Dependent Claim
38 words
A flow machine according to claim 5, in which the plate packs on the rotor and on the stator are embedded in a synthetic resin composition and a sealing gap is formed between the rotor and the stator.
Claim 8
Dependent Claim
29 words
A flow machine according to claim 6 in which the housing is provided with a channel extending into the sealing gap for the supplying of a sealing medium thereto.
Claim 9
Dependent Claim
20 words
A flow machine according to claim 1 or 2 in which the housing is provided with a heat dissipating means.
Claim 10
Dependent Claim
24 words
A flow machine according to claim 1 or 2 in which an emergency bearing is provided on the housing for supportably engaging the rotor.
Claim 11
Dependent Claim
35 words
A flow machine according to claim 1 in which the rotor is locked to said housing by conical bearings at opposed rotor ends whereby axial shifting of said rotor relative to said housing is limited.
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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) | 1984-10-19 | 1985-04-20 | 1985-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-19 | 1989-04-20 | 1989-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-19 | 1993-04-20 | 1993-10-20 | $7700.00 | Window Closed / Lapsed |