US3691822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible support structure for vibration testing
Assignee: KBR Wyle Services LLC
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Filing: 1970-08-03
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Granted: 1972-09-19
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Expires: 1990-08-03
Abstract
Abstract A vibration testing device for supporting items to enable them to be vibrated in three orthogonal directions and pivoted about a vertical axis while maintaining them level, or horizontal, comprising an item-supporting platform surrounded by an intermediate member which, in turn, is surrounded by an outer member. A first group of resilient thin walled cylinders support the platform on the intermediate member, all of these cylinders oriented with their axes horizontal and extending circumferentially about the platform. A second group of resilient thin-walled cylinders support the intermediate member on the outer member, these cylinders all oriented with their axes vertical. Shaking forces are transmitted to the platform through a structure which includes an inner shaft attached to the platform, a cylindrical surrounding member which can be driven, and a group of resilient thin-walled cylinders whose axes extend parallel to the shaft and which are attached at diametrically opposite sides to the shaft and surrounding member, respectively.
Inventors
- 👤 Charles E Deckard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:26
CPC Classifications
G; G01; G01M; G01M7/00; G01M7/02; G01M7/06
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
167 words
Vibration testing apparatus comprising: an inner member for holding an article to be vibration tested; an outer member disposed about said inner member, said inner and outer members substantially centered on a predetermined axis; a first plurality of flexible substantially cylindrical elements disposed between said inner and outer members, each of said cylindrical elements having diametrically opposite sides respectively fixed to said inner and outer members; a surrounding member extending substantially coaxially with said predetermined axis about said outer member; a second plurality of flexible substantially cylindrical elements, each of said second elements positioned between said outer and surrounding members and having diametrically opposite sides fixed to said outer and surrounding members respectively; and vibration inducing means coupled to said inner member for vibrating it; one of said first or second plurality of cylindrical elements oriented with their axes parallel to said predetermined axis and the other plurality of cylindrical elements oriented with their axes substantially tangent to an imaginary line extending circumferentially about said predetermined axis.
Claim 2
Dependent Claim
167 words
Vibration testing apparatus comprising: an inner member for holding an article to be vibration tested; an outer member disposed about said inner member, said inner and outer members substantially centered on a predetermined axis; a first plurality of flexible substantially cylindrical elements disposed between said inner and outer members, each of said cylindrical elements having diametrically opposite sides respectively fixed to said inner and outer members; a surrounding member extending substantially coaxially with said predetermined axis about said outer member; a second plurality of flexible substantially cylindrical elements, each of said second elements positioned between said outer and surrounding members and having diametrically opposite sides fixed to said outer and surrounding members respectively; and vibration inducing means coupled to said inner member for vibrating it; one of said first or second plurality of cylindrical elements oriented with their axes parallel to said predetermined axis and the other plurality of cylindrical elements oriented with their axes substantially tangent to an imaginary line extending circumferentially about said predetermined axis.
Claim 3
Dependent Claim
130 words
Vibration testing apparatus comprising: an inner member substantially centered on a predetermined axis; an outer member extending substantially coaxial with said predetermined axis about said inner member; a plurality of bearing assemblies for coupling said inner and outer members, each assembly including a pair of tubular elements, each tubular element defining in section a closed curve of substantially constant cross-section; a first element of each pair having opposite sides respectively fixed to said inner member and coupled to the second element of the pair, and a second element of each pair having diametrically opposite sides respectively fixed to said outer member and coupled to the first element of the pair, said first and second elements of each pair extending perpendicular to each other; and means for vibrating said inner member.
Claim 4
Dependent Claim
130 words
Vibration testing apparatus comprising: an inner member substantially centered on a predetermined axis; an outer member extending substantially coaxial with said predetermined axis about said inner member; a plurality of bearing assemblies for coupling said inner and outer members, each assembly including a pair of tubular elements, each tubular element defining in section a closed curve of substantially constant cross-section; a first element of each pair having opposite sides respectively fixed to said inner member and coupled to the second element of the pair, and a second element of each pair having diametrically opposite sides respectively fixed to said outer member and coupled to the first element of the pair, said first and second elements of each pair extending perpendicular to each other; and means for vibrating said inner member.
Claim 5
Dependent Claim
149 words
Vibration testing apparatus for vibrating an article to be tested while maintaining it in a level orientation comprising: an inner member for coupling to an article to be tested; an intermediate member extending substantially coaxial with a vertical axis about said inner member; an outer member extending substantially coaxial with said vertical axis about said intermediate member; a first plurality of resilient tubular elements defining in section closed loops, said elements having opposite sides respectively joined to said inner and intermediate members; a second plurality of resilient elements defining closed loops, said elements having opposite sides respectively joined to said intermediate and outer members; each element of one of said plurality of elements extending vertically, and each element of the other of said plurality of elements extending horizontally and substantially tangential to an imaginary line which extends circumferentially about said central axis; and mEans for vibrating said inner member.
Claim 6
Dependent Claim
149 words
Vibration testing apparatus for vibrating an article to be tested while maintaining it in a level orientation comprising: an inner member for coupling to an article to be tested; an intermediate member extending substantially coaxial with a vertical axis about said inner member; an outer member extending substantially coaxial with said vertical axis about said intermediate member; a first plurality of resilient tubular elements defining in section closed loops, said elements having opposite sides respectively joined to said inner and intermediate members; a second plurality of resilient elements defining closed loops, said elements having opposite sides respectively joined to said intermediate and outer members; each element of one of said plurality of elements extending vertically, and each element of the other of said plurality of elements extending horizontally and substantially tangential to an imaginary line which extends circumferentially about said central axis; and mEans for vibrating said inner member.
Claim 7
Dependent Claim
13 words
The apparatus described in claim 3 wherein: each of said elements is cylindrical.
Claim 8
Dependent Claim
72 words
The apparatus described in claim 3 wherein: said means for vibrating said inner member includes first and second force applying means, each including a central shaft attached to said inner member, an outer part, and a plurality of resilient cylindrical elements with diametrically opposite sides respectively fixed to said shaft and outer part, the central shaft of said first and second force applying means extending substantially at right angles to each other.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-19 | 1976-03-20 | 1976-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-19 | 1980-03-20 | 1980-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-19 | 1984-03-20 | 1984-09-19 | $7700.00 | Window Closed / Lapsed |