US3364892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control means for hydrofoil craft
Assignee: ABB Norden Holding AB
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Filing: 1966-10-10
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Granted: 1968-01-23
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Expires: 1986-10-10
Abstract
No abstract record available.
Inventors
- 👤 Persson Erik
- 👤 Schiott Henning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:05
CPC Classifications
B; B63; B63B; B63B1/00; B63B1/16; B63B1/24; B63B1/28; B63B1/285; B63B1/286
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
CONTROL MEANS FOR HYDROFOIL CRAFT, SAID CONTROL MEANS COMPRISING AT LEAST ONE RUDDER AT LEAST A PART OF WHICH IS TILTABLE, A RUBBER ACTUATING MEANS CONNECTED TO SAID RUDDER TO ADJUST THE RUBBER, A FIRST MEASURING MEANS MEASURING THE ANGEL OF ATTACK (A) OF THE HYDROFOIL, A SECOND MEASURING MEANS RESPONSIVE TO THE ANGLE ($) BETWEEN THE PLANE OF THE HYDROFOIL AND THE HORIZONTAL PLANE, A THIRD MEASURING MEANS RESPONSIVE TO THE ACCELERATION (A) OF THE HYDROFOIL IN A VERTICAL DIRECTION AND A FOURTH MEASURING MEANS RESPONSIVE TO THE SPEED (U) OF THE CRAFT, MEANS TO COMBINE THE OUTPUT SIGNALS FROM ALL SAID MEASURING MEANS TO GIVE A RESULTANT SIGNAL, (UV), CORRESPONDING TO THE ABSOLUTE VERTICAL VELOCITY OF THE WATER AND MEANS TO SUPPLY THE RESULTANT SIGNAL TO SAID RUBBER ACTUATING MEANS, SAID COMBINING MEANS PRODUCING SIGNALS OF A VALUE
Claim 2
Dependent Claim
140 words
CONTROL MEANS FOR HYDROFOIL CRAFT, SAID CONTROL MEANS COMPRISING AT LEAST ONE RUDDER AT LEAST A PART OF WHICH IS TILTABLE, A RUBBER ACTUATING MEANS CONNECTED TO SAID RUDDER TO ADJUST THE RUBBER, A FIRST MEASURING MEANS MEASURING THE ANGEL OF ATTACK (A) OF THE HYDROFOIL, A SECOND MEASURING MEANS RESPONSIVE TO THE ANGLE ($) BETWEEN THE PLANE OF THE HYDROFOIL AND THE HORIZONTAL PLANE, A THIRD MEASURING MEANS RESPONSIVE TO THE ACCELERATION (A) OF THE HYDROFOIL IN A VERTICAL DIRECTION AND A FOURTH MEASURING MEANS RESPONSIVE TO THE SPEED (U) OF THE CRAFT, MEANS TO COMBINE THE OUTPUT SIGNALS FROM ALL SAID MEASURING MEANS TO GIVE A RESULTANT SIGNAL, (UV), CORRESPONDING TO THE ABSOLUTE VERTICAL VELOCITY OF THE WATER AND MEANS TO SUPPLY THE RESULTANT SIGNAL TO SAID RUBBER ACTUATING MEANS, SAID COMBINING MEANS PRODUCING SIGNALS OF A VALUE
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) | 1971-01-22 | 1971-07-24 | 1972-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-22 | 1975-07-24 | 1976-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-22 | 1979-07-24 | 1980-01-23 | $7700.00 | Window Closed / Lapsed |