US3244135A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for controlling ship movement
Assignee: Eastern Research Group
•
Filing: 1964-06-16
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Granted: 1966-04-05
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Expires: 1984-06-16
Abstract
No abstract record available.
Inventors
- 👤 Meyerhoff Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:49
CPC Classifications
B; B63; B63B; B63B39/00; B63B39/06; B63H; B63H25/00; B63H25/44; B63H25/48; B63H5/00; B63H5/07; B63H5/14; B63H11/00; B63H11/02; B63H11/10; B63H11/107; B63H11/117
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A CONTROL SYSTEM FOR A SHIP HAVING A MEANS FOR PROPELLING THE SHIP IN RESPONSE TO THE MOVEMENT OF A FLOW OF LIQUID WITH RESPECT TO THE HULL OF THE SHIP IN A PREDETERMINED DIRECTION, SAID SYSTEM COMPRISING A DUCT HAVING A SUBSTANTIALLY CONCAVE-CONVEX FOIL-SHAPED LONGITUDINAL WALL SECTION MOUNTED WITHOUT THE HULL, THE INNER SURFACE OF SAID DUCT BEING CONCAVE, SAID DUCT BEING ADAPTED TO DEVELOP A LIFT FORCE IN RESPONSE TO THE FLOW OF LIQUID WITH RESPECT THERETO, THE LEADING AND TRAILING PORTIONS OF SAID DUCT EXTENDING SUBSTANTIALLY IN A TRANSVERSE DIRECTION WITH RESPECT TO THE PREDETERMINED DIRECTION OF THE FLOW, AND MEANS FOR DEFLECTING THE FLOW EXTENDING FROM ADJACENT SAID TRAILING PORTION IN ORDER TO CHANGE THE DIRECTION OF FLOW WITH RESPECT TO SAID DUCT WHEREBY THE DEFLECTING OF THE FLOW EXTENDING FROM ADJACENT SAID TRAILING PORTION VARIES THE FLOW UPSTREAM THEREOF TO INDUCE A CONTROL LIFT FORCE UPON SAID DUCT.
Claim 2
Dependent Claim
153 words
A CONTROL SYSTEM FOR A SHIP HAVING A MEANS FOR PROPELLING THE SHIP IN RESPONSE TO THE MOVEMENT OF A FLOW OF LIQUID WITH RESPECT TO THE HULL OF THE SHIP IN A PREDETERMINED DIRECTION, SAID SYSTEM COMPRISING A DUCT HAVING A SUBSTANTIALLY CONCAVE-CONVEX FOIL-SHAPED LONGITUDINAL WALL SECTION MOUNTED WITHOUT THE HULL, THE INNER SURFACE OF SAID DUCT BEING CONCAVE, SAID DUCT BEING ADAPTED TO DEVELOP A LIFT FORCE IN RESPONSE TO THE FLOW OF LIQUID WITH RESPECT THERETO, THE LEADING AND TRAILING PORTIONS OF SAID DUCT EXTENDING SUBSTANTIALLY IN A TRANSVERSE DIRECTION WITH RESPECT TO THE PREDETERMINED DIRECTION OF THE FLOW, AND MEANS FOR DEFLECTING THE FLOW EXTENDING FROM ADJACENT SAID TRAILING PORTION IN ORDER TO CHANGE THE DIRECTION OF FLOW WITH RESPECT TO SAID DUCT WHEREBY THE DEFLECTING OF THE FLOW EXTENDING FROM ADJACENT SAID TRAILING PORTION VARIES THE FLOW UPSTREAM THEREOF TO INDUCE A CONTROL LIFT FORCE UPON SAID DUCT.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |