Two string kite and control therefor
Abstract
Abstract A KITE COMPRISES A FLEXIBLE SHEET CARRYING A CENTRAL RIGID MEMBER AND TWO SPAR MEMBERS SPACED FROM THE RIGID MEMBER, A RESILIENT WIRE EXTENDING BETWEEN THE TWO SPAR MEMBERS TO SPREAD THE SPAR MEMBERS APART SO AS TO MAINTAIN TAUTNESS OF THE SHEET. A PAIR OF KITE STRINGS IS OPERATIVELY CONNECTED TO THE KITE, ONE OF SAID STRINGS BEING IN OPERATIVE CONNECTION WITH EACH ONE OF SAID SPAR MEMBERS, WHEREBY CONTROLLED MOVEMENT OF THE KITE STRINGS PRODUCES RELATIVE MOVEMENT OF ONE OF THE SPAR MEMBERS WITH RESPECT TO THE RIGID MEMBER, THEREBY VARYING THE EFFECTIVE AREA OF ONE SECTION OF THE SHEET, THEREBY TO CAUSE CONTROLLED GUIDANCE OF THE KITE. ALSO, DISCLOSED IS A REMOTE, HAND HELD CONTROL DEVICE FROM WHICH THE TWO KITE STRINGS ARE RELEASED FROM TWO SPACED POINTS THEREON, A HANDLE BEING PROVIDED TO THE REAR OF THESE SPACED RELEASE POINTS. A REEL CARRIED BY THE CONTROL DEVICE, UPON WHICH THE TWO KITE STRINGS ARE WOUND, IS OF RELATIVELY LARGE DIAMETER AND HAS A VERY NARROW DRUM PORTION, WHEREBY THE TWO KITE STRINGS WOUND THEREON LIE UNIFORMLY ABOUT THE DRUM PORTION.
Inventors
- 👤 Donald P Gellert
Bibliographic Details
Claims Analysis
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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) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |