US3950897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-chambered fluid balancing apparatus
Assignee: Gebr Hofmann GmbH and Co KG Maschinenfabrik
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Filing: 1974-11-12
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Granted: 1976-04-20
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Expires: 1994-11-12
Abstract
Abstract A balancing apparatus, particularly for a grinding wheel, whereby the wheel has four chambers disposed around its axis of rotation with each chamber connected to one face of the ring shaped container by a slot formed in a circular recess at a different radius so that the wheel can be balancing by injecting cooling fluid or the like into the slots to temporarily add fluid to selected chambers.
Inventors
- 👤 Dieter Birkenstack
- 👤 Otto Jager
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:43
CPC Classifications
G; G01; G01M; G01M1/00; G01M1/30; G01M1/32; G01M1/323; B; B23; B23Q; B23Q11/00; B23Q11/0032; B23Q11/0035; B24; B24B; B24B41/00; B24B41/04; B24D; B24D5/00; B24D5/16; B24D5/165; F; F16; F16F; F16F15/00; F16F15/32; F16F15/36; F16F15/366; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2121; Y10T74/2122; Y10T74/2123
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
92 words
In an apparatus for compensating for the unbalance of a rotating body including a machine tool, with several chambers arranged around the axis of rotation, which rotate together with the rotor and into which, controlled by a control unit, a balancing fluid may be injected, the improvement wherein the chambers are disposed in a ring-shaped container at one side of which fluid inlets are provided, arranged on different radii, whereby each inlet on a certain radius is assigned to a certain chamber and one fluid feed pipe is provided for each radius.
Claim 2
Dependent Claim
92 words
In an apparatus for compensating for the unbalance of a rotating body including a machine tool, with several chambers arranged around the axis of rotation, which rotate together with the rotor and into which, controlled by a control unit, a balancing fluid may be injected, the improvement wherein the chambers are disposed in a ring-shaped container at one side of which fluid inlets are provided, arranged on different radii, whereby each inlet on a certain radius is assigned to a certain chamber and one fluid feed pipe is provided for each radius.
Claim 3
Dependent Claim
32 words
In an apparatus according to claim 1, wherein the fluid inlets are slots and the fluid feed pipes are nozzles so that the balancing fluid can be injected directly into the chambers.
Claim 4
Dependent Claim
17 words
In an apparatus according to claim 1, wherein the ring-shaped container is mounted directly on the rotor.
Claim 5
Dependent Claim
36 words
In an apparatus according to claim 1, wherein on the front side of the ring-shaped container additional circular recesses are provided, the radii of which correspond to the radii on which the fluid inlets are arranged.
Claim 6
Dependent Claim
16 words
In an apparatus according to claim 1 wherein four chambers are provided in said ring-shaped container.
Claim 7
Dependent Claim
19 words
In an apparatus according to claim 1, wherein the balancing fluid is a cooling fluid and including said fluid.
Claim 8
Dependent Claim
23 words
In an apparatus according to claim 1, wherein the inlets on the radii are located near the inside diameter of the ring-shaped container.
Claim 9
Dependent Claim
15 words
In an apparatus as in claim 1, wherein said machine tool is a grinding wheel.
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) | 1979-04-20 | 1979-10-20 | 1980-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-20 | 1983-10-20 | 1984-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-20 | 1987-10-20 | 1988-04-20 | $7700.00 | Window Closed / Lapsed |