US3552694A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three-dimensional vibration isolator
Assignee: Kaman Corp
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Filing: 1969-03-18
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Granted: 1971-01-05
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Expires: 1989-03-18
Abstract
Abstract The disclosure is of a passive vibration isolator for reducing the transmission of vibratory displacements and forces from a vibrationally excited base or body to an isolated body. The excited body is one which may vibrate in three orthogonal directions either independently or simultaneously. The isolated body is connected with the excited body by a spring means which statically supports it and permits the excited body to move resiliently relative to it in the three orthogonal directions. Also, between the excited body and the isolated body are two weighted levers which are so pivotally connected to the bodies and to one another as to produce inertial forces which counteract the forces produced by the vibrations of the excited body and thereby reduce, in all three directions of relative movement, the vibratory forces transmitted to the isolated body from the excited body.
Inventors
- 👤 William G Flannelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:16
CPC Classifications
F; F16; F16F; F16F7/00; F16F7/10; F16F7/1022
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
189 words
The combination with a first body subject to vibrational excitation and a second separate body of a vibration isolator for supporting said second body from said first body while reducing the transmission of vibratory said first and displacements from said first body to said second body resulting from movement of said first body relative to said second body in three orthogonal directions, said vibration isolator including a spring means interposed between said first and second bodies for statically supporting said second body from said first body and for resiliently resisting movement of said first body relative to said second body in three orthogonal directions of relative movement, first and second massive levers, means pivotally connecting said first massive lever to said first body for pivotal movement relative thereto about a pivot axis fixed relative to said first body, means connecting said second lever to said second body for universal movement relative thereto about a point fixed relative to said second body and said second lever, and means connecting said first and second levers to one another for universal movement about a point fixed relative to both of said levers.
Claim 2
Dependent Claim
189 words
The combination with a first body subject to vibrational excitation and a second separate body of a vibration isolator for supporting said second body from said first body while reducing the transmission of vibratory said first and displacements from said first body to said second body resulting from movement of said first body relative to said second body in three orthogonal directions, said vibration isolator including a spring means interposed between said first and second bodies for statically supporting said second body from said first body and for resiliently resisting movement of said first body relative to said second body in three orthogonal directions of relative movement, first and second massive levers, means pivotally connecting said first massive lever to said first body for pivotal movement relative thereto about a pivot axis fixed relative to said first body, means connecting said second lever to said second body for universal movement relative thereto about a point fixed relative to said second body and said second lever, and means connecting said first and second levers to one another for universal movement about a point fixed relative to both of said levers.
Claim 3
Dependent Claim
106 words
The combination defined in claim 1 further characterized by said pivot axis, said points of universal connection, and said centers of gravity being so arranged that in one direction of movement of said first body relative to said second body said first lever is moved relative to said first body without said second lever being moved relative to said second body and in other directions of movement of said first body relative to said second body occurring in a plane perpendicular to said one direction said second lever is moved relative to said second body without said first lever being moved relative to said first body.
Claim 4
Dependent Claim
103 words
The combination defined in claim 1 further characterized by said first lever having a center of gravity located generally on a line passing through said pivot axis and said point of universal connection between said first and second levers, and said second lever having a center of gravity located generally on a second line passing through said point of universal connection between said second lever and said second body and said point of universal connection between said second lever and said first lever, said first and second lines being generally perpendicular to one another when said first and second bodies are at rest.
Claim 5
Dependent Claim
114 words
The combination defined in claim 3 further characterized by the characteristic R1/r1 being positive and R2/r2 being positive where: R1 the displacement of the center of gravity of said lever from the point of universal connection between said two levers; r the displacement of said pivot axis of said first lever from said points of universal connection between said axis of said two levers; R2 the displacement of the center of gravity of said second lever from its point of universal connection with said second body; and r2 the displacement of said point of universal connection between said two levers from said point of universal connection of said second lever to said second body.
Claim 6
Dependent Claim
111 words
The combination defined in claim 3 further characterized by the characteristic R1/r1 being positive and R2/r2 being negative where: R1 the displacement of the center of gravity of said lever from the point of universal connection between said two levers; r1 the displacement of said pivot axis of said first lever from said points of universal connection between said two levers; R2 the displacement of the center of gravity of said second lever from its point of universal connection with said second body; and r2 the displacement of said point of universal connection between said two levers from said point of universal connection of said second lever to said second body.
Claim 7
Dependent Claim
111 words
The combination defined in claim 4 further characterized by the characteristic R1/r1 being negative and R2/r2 being positive where; R1 the displacement of the center of gravity of said lever from the point of universal connection between said two levers; r1 the displacement of said pivot axis of said first lever from said points of universal connection between said two levers; R2 the displacement of the center of gravity of said second lever from its point of universal connection with said second body; and r2 the displacement of said point of universal connection between said two levers from said point of universal connection of said second lever to said second body.
Claim 8
Dependent Claim
111 words
The combination defined in claim 4 further characterized by the characteristic R1/r1 being negative and R2/r2 being negative where: R1 the displacement of the center of gravity of said lever from the point of universal connection between said two levers; r1 the displacement of said pivot axis of said first lever from said points of universal connection between said two levers; R2 the displacement of the center of gravity of said second lever from its point of universal cOnnection with said second body; and r2 the displacement of said point of universal connection between said two levers from said point of universal connection of said second lever to said second body.
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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |