US3743268A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibration apparatus especially for rotary oscillations
Assignee: Carl Schenck AG
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Filing: 1971-08-30
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Granted: 1973-07-03
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Expires: 1991-08-30
Abstract
Abstract The present vibratory apparatus for determining the mass moment of inertia of bodies has two plates which are vibratable and interconnected by a spring arrangement having at least two spring elements traversing each other in the oscillating axis of the apparatus. Each spring element has a plurality of sections arranged relative to each other so that these sections provide soft spring means easily bendable about said oscillating axis and hard or stiff spring means not easily bendable about said axis but easily bendable in the direction of said axis.
Inventors
- 👤 M Heiland
- 👤 H Hoenlinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:19
CPC Classifications
G; G01; G01M; G01M1/00; G01M1/10; F; F16; F16F; F16F1/00; F16F1/02; F16F1/18; F16F1/26
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
121 words
An apparatus for determining the mass moment of inertia of a body, comprising: first and second plate means arranged substantially in parallel to each other with a gap therebetween, drive means operatively connected to said plate means for causing an oscillation about a common center axis, means for establishing a fluid cushion in said gap between said first and second plate means to maintain said first and second plate means spaced from each other, and at least two spring devices in said gap for interconnecting said first and second plate means, said spring devices having a first spring element relatively, easily bendable in the direction of said axis and at least one further spring element relatively, easily bendable about said axis.
Claim 2
Independent Claim
121 words
An apparatus for determining the mass moment of inertia of a body, comprising: first and second plate means arranged substantially in parallel to each other with a gap therebetween, drive means operatively connected to said plate means for causing an oscillation about a common center axis, means for establishing a fluid cushion in said gap between said first and second plate means to maintain said first and second plate means spaced from each other, and at least two spring devices in said gap for interconnecting said first and second plate means, said spring devices having a first spring element relatively, easily bendable in the direction of said axis and at least one further spring element relatively, easily bendable about said axis.
Claim 3
Dependent Claim
91 words
The apparatus according to claim 1, wherein said first spring element of each spring device comprises a middle portion extending substantially in parallel to said first and second plate means and forming a leaf spring, said further spring element of each spring device comprising two spaced portions located substantially symmetrically on opposite sides of said first spring element and extending substantially perpendicularly to a plane defined by the first spring element of the respective spring device, said spaced portions also forming leaf springs extending in the direction of said center axis.
Claim 4
Dependent Claim
20 words
The apparatus according to claim 1, wherein two spring devices are arranged to cross each other substantially at right angles.
Claim 5
Dependent Claim
33 words
The apparatus according to claim 2, wherein two spring devices are arranged so that their middle portions cross each other substantially at right angles, said middle portions extending in parallel to each other.
Claim 6
Dependent Claim
89 words
A spring device comprising at least three leaf spring elements, wall means for connecting said leaf spring elements in series with each other, whereby the planes defined by adjacent leaf spring elements extend at right angles to each other, said connecting wall means extending in parallel to each other and at right angles to said leaf spring elements, said connecting wall means including end means at each end of the series connected spring elements, whereby each of said leaf spring elements and the adjacent wall means form an I-section.
Claim 7
Dependent Claim
89 words
A spring device comprising at least three leaf spring elements, wall means for connecting said leaf spring elements in series with each other, whereby the planes defined by adjacent leaf spring elements extend at right angles to each other, said connecting wall means extending in parallel to each other and at right angles to said leaf spring elements, said connecting wall means including end means at each end of the series connected spring elements, whereby each of said leaf spring elements and the adjacent wall means form an I-section.
Claim 8
Dependent Claim
24 words
The spring device according to claim 5, wherein said connecting end means are blocks forming an integral unit with the respective leaf spring element.
Claim 9
Dependent Claim
15 words
The spring device according to claim 5, wherein said blocks are provided with fastening means.
Claim 10
Dependent Claim
52 words
The spring device according to claim 5, wherein the leaf spring elements adjacent to said connecting end wall means are oriented in the same plane, and wherein at least one intermediate leaf spring element is oriented in a plane extending substantially perpendicularly to said first mentioned plane, whereby three I-sections are formed.
References Cited (Backward Citations)
US2896447A
Cited
US2901703A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-02 | 1977-01-01 | 1977-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-02 | 1981-01-01 | 1981-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-02 | 1985-01-01 | 1985-07-03 | $7700.00 | Window Closed / Lapsed |