Patent US3216679A successfully refreshed from Google Patents.
US3216679A
Expired / Lapsed
US
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Active vibration isolator
Assignee: Soluna Holdings Inc
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Filing: 1963-02-06
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Granted: 1965-11-09
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Expires: 1983-02-06
Abstract
No abstract record available.
Inventors
- 👤 Peter W Curwen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:11
CPC Classifications
F; F16; F16F; F16F15/00; F16F15/02; F16F15/023; F16F15/027; Y; Y10; Y10T; Y10T137/00; Y10T137/2278; Y10T137/2322
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
AN ACTIVE VIBRATION ISOLATOR COMPRISING A PRESSURE CYLINDER, A VERTICALLY DISPLACEABLE PISTON DISPOSED WITHIN A SECOND CYLINDER SECURED TO THE PRESSURE CYLINDER, MEANS ON SAID PISTON FOR RECEIVING A LOAD, SAID PISTON BEING SUBJECTED TO VERTICAL DISPLACEMENTS IN RESPONSE TO SAID LOAD, AND AUTOMATIC CONTROL MEANS RESPONSIVE TO SAID VERTICAL PISTON DISPLACEMENTS FOR APPLYING A VERTICAL FORCE TO SAID PISTON TO RETURN AND MAINTAIN SAID PISTON IN A PREDETERMINED POSITION; SAID CONTROL MEANS COMPRISING A TRANSDUCER SENSITIVE TO PISTON DISPLACEMENT AND CAPABLE OF GENERATING A VOLTAGE WHEN THE PISTON IS DISPLACED VERTICALLY,
Claim 2
Dependent Claim
92 words
AN ACTIVE VIBRATION ISOLATOR COMPRISING A PRESSURE CYLINDER, A VERTICALLY DISPLACEABLE PISTON DISPOSED WITHIN A SECOND CYLINDER SECURED TO THE PRESSURE CYLINDER, MEANS ON SAID PISTON FOR RECEIVING A LOAD, SAID PISTON BEING SUBJECTED TO VERTICAL DISPLACEMENTS IN RESPONSE TO SAID LOAD, AND AUTOMATIC CONTROL MEANS RESPONSIVE TO SAID VERTICAL PISTON DISPLACEMENTS FOR APPLYING A VERTICAL FORCE TO SAID PISTON TO RETURN AND MAINTAIN SAID PISTON IN A PREDETERMINED POSITION; SAID CONTROL MEANS COMPRISING A TRANSDUCER SENSITIVE TO PISTON DISPLACEMENT AND CAPABLE OF GENERATING A VOLTAGE WHEN THE PISTON IS DISPLACED VERTICALLY,
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) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |