US3371640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means and method of damping pitcing and rolling of floating structures under wave and swell action
Assignee: LEO J TSOKALAS
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Filing: 1966-10-06
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Granted: 1968-03-05
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Expires: 1986-10-06
Abstract
No abstract record available.
Inventors
- 👤 Leo J Tsokalas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:19
CPC Classifications
B; B63; B63B; B63B39/00; B63B39/02; B63B39/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
A FLOATING BODY HAVING VOLUME AND WEIGHT, DISPLACING WATER ON WHICH IT IS FLOATING, SAID BODY PROVIDED WITH ONE OR MORE VENTS EACH IN THE FORM OF A STRAIGHT LONGITUDINAL PASSAGE OPEN AT ITS OPPOSITE ENDS, BOTH ENDS OF ALL OF SAID VENTS BEING DISPOSED ON THE EXTERNAL SURFACE OF SAID BODY ABOVE THE NORMAL WATER LEVEL AND ONE OF SAID ENDS OF EACH VENT DISPOSED ADJACENT SAID WATER LEVEL WHEN THE WATER IS CALM, EACH OF SAID VENTS LOCATED SO AS TO EXTEND LONGITUDINALLY OF THE BODY SOLELY IN AN OUTWARD DIRECTION AWAY FROM ITS CENTER OF GRAVITY AND ADAPTED TO RECEIVE AND PERMIT PASSAGE OF A PORTION OF A WAVE MOVING FROM FORE TO AFT AND THUS REDUCE THE WATER DISPLACEMENT AND BUOYANCY OF THE PORTION OF THE BODY PROVIDED WITH THE VENT OR VENTS FROM WHAT THEY WOULD BE WITH THE FULL VOLUME OF THE BODY WITHOUT THE VENT OR VENTS.
Claim 2
Dependent Claim
154 words
A FLOATING BODY HAVING VOLUME AND WEIGHT, DISPLACING WATER ON WHICH IT IS FLOATING, SAID BODY PROVIDED WITH ONE OR MORE VENTS EACH IN THE FORM OF A STRAIGHT LONGITUDINAL PASSAGE OPEN AT ITS OPPOSITE ENDS, BOTH ENDS OF ALL OF SAID VENTS BEING DISPOSED ON THE EXTERNAL SURFACE OF SAID BODY ABOVE THE NORMAL WATER LEVEL AND ONE OF SAID ENDS OF EACH VENT DISPOSED ADJACENT SAID WATER LEVEL WHEN THE WATER IS CALM, EACH OF SAID VENTS LOCATED SO AS TO EXTEND LONGITUDINALLY OF THE BODY SOLELY IN AN OUTWARD DIRECTION AWAY FROM ITS CENTER OF GRAVITY AND ADAPTED TO RECEIVE AND PERMIT PASSAGE OF A PORTION OF A WAVE MOVING FROM FORE TO AFT AND THUS REDUCE THE WATER DISPLACEMENT AND BUOYANCY OF THE PORTION OF THE BODY PROVIDED WITH THE VENT OR VENTS FROM WHAT THEY WOULD BE WITH THE FULL VOLUME OF THE BODY WITHOUT THE VENT OR VENTS.
References Cited (Backward Citations)
US1444150A
Cited
US2488542A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-05 | 1971-09-04 | 1972-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-05 | 1975-09-04 | 1976-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-05 | 1979-09-04 | 1980-03-05 | $7700.00 | Window Closed / Lapsed |