US3922922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for balancing unbalanced rotors in which the rotor can swing between horizontal and vertical positions
Assignee: Gebr Hofmann GmbH and Co KG Maschinenfabrik
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Filing: 1974-04-29
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Granted: 1975-12-02
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Expires: 1994-04-29
Abstract
Abstract Apparatus for balancing rotors, such as motor vehicle tires, with a shaft onto which the rotor is mounted, a inner housing mounting the shaft and rotor for rotation and an outer housing connected to the inner housing by a pair of leaf springs and vibration transducers. The outer and inner housings together with the shaft and rotor can be pivoted to shift the rotor between horizontal and vertical positions.
Inventors
- 👤 Eickhart Goebel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:03
CPC Classifications
G; G01; G01M; G01M1/00; G01M1/02; G01M1/04; G01M1/045
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
79 words
In an apparatus for balancing imbalanced rotors, having a rotatable shaft, the unbalance being determined and compensated in two planes, the improvement wherein said shaft is mounted for rotation in an inner housing, an outer housing supporting said inner housing, transducer means disposed between said housings for detecting the vibrations on said rotating shaft, means for swinging said shaft and housings between a horizontal and a vertical position and means mounted on said inner housing for rotating said shaft.
Claim 2
Dependent Claim
79 words
In an apparatus for balancing imbalanced rotors, having a rotatable shaft, the unbalance being determined and compensated in two planes, the improvement wherein said shaft is mounted for rotation in an inner housing, an outer housing supporting said inner housing, transducer means disposed between said housings for detecting the vibrations on said rotating shaft, means for swinging said shaft and housings between a horizontal and a vertical position and means mounted on said inner housing for rotating said shaft.
Claim 3
Dependent Claim
28 words
In an apparatus as defined in claim 1, the further improvement wherein said shaft rotating means includes a motor driving said shaft mounted directly on said inner housing.
Claim 4
Dependent Claim
26 words
In an apparatus as defined in claim 1, the further improvement wherein in said inner housing is supported against said outer housing by means of springs.
Claim 5
Dependent Claim
40 words
In an apparatus as defined in claim 3, the further improvement wherein said springs are leaf springs applying a force against the inside of Said inner housing on both sides, and that said springs are supported against the outer housing.
Claim 6
Dependent Claim
23 words
In an apparatus as defined in claim 3, wherein said inner housing is stably supported against said outer housing by three vibration transducers.
Claim 7
Dependent Claim
36 words
In an apparatus as defined in claim 5, the further improvement wherein said inner housing is supported against the bottom of said outer housing by two vibration transducers and against the top by one vibration transducer.
Claim 8
Dependent Claim
28 words
In an apparatus as defined in claim 6, the further improvement wherein said two vibration transducers are arranged between said springs and the bottom of said outer housing.
Claim 9
Dependent Claim
36 words
In an apparatus as defined in claim 4, the further improvement including hydraulic means for swinging between a vertical and horizontal position an assembly comprising said outer housing, said inner housing, said motor and said shaft.
Claim 10
Dependent Claim
25 words
In an apparatus as defined in claim 8, the further improvement wherein the swivel axis of said outer housing is formed by two cone bearings.
Claim 11
Dependent Claim
34 words
In an apparatus as defined in claim 8, the further improvement wherein in one stop each is provided for the horizontal and vertical position of said assembly against which the assembly can be pressed.
Claim 12
Dependent Claim
28 words
In an apparatus as defined in claim 10, the further improvement wherein the contact pressure exceeds the weight of the swingable assembly with the added maximum unbalance force.
Claim 13
Independent Claim
77 words
An apparatus for balancing imbalanced rotors comprising: a rotatable shaft for mounting a rotor to be balanced, a first housing mounting said shaft for rotation, a second housing, means mounted on said first housing for rotating said shaft, and means for mounting said first housing within said second housing including first transducer means for producing an imbalance signal in a first balancing plane and second transducer means for producing an imbalance signal in a second balancing means.
Claim 14
Independent Claim
77 words
An apparatus for balancing imbalanced rotors comprising: a rotatable shaft for mounting a rotor to be balanced, a first housing mounting said shaft for rotation, a second housing, means mounted on said first housing for rotating said shaft, and means for mounting said first housing within said second housing including first transducer means for producing an imbalance signal in a first balancing plane and second transducer means for producing an imbalance signal in a second balancing means.
Claim 15
Dependent Claim
28 words
Apparatus as in claim 12, including means connected to said second housing for rotating said shaft and housings to shift said rotor between a horizontal and vertical position.
Claim 16
Dependent Claim
19 words
An apparatus as in claim 13, wherein said rotating means includes a hydraulic cylinder connected to said second housing.
Claim 17
Dependent Claim
53 words
Apparatus as in claim 12, wherein said mounting means includes a pair of leaf springs connecting said second housing to said first housing and said first transducer means include a pair of transducers supporting said first housing in said first plane and a single transducer supporting said first housing in said second plane.
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) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |