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US3112669A Expired / Lapsed US ⏱️ 0.0 years remaining

Controlled-jet-supported hovering platform chiefly for use in mine clearing

Assignee: Safran Aircraft Engines SAS
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Filing: 1961-12-11
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Granted: 1963-12-03
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Expires: 1981-12-11
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Abstract

No abstract record available.

Inventors

  • 👤 Damblanc Louis Jean

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 18:40
CPC Classifications
F; F41; F41H; F41H11/00; F41H11/12; F41H11/16; B; B64; B64C; B64C39/00; B64C39/02; B64C39/026

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 134 words
A HOVERING PLATFORM ADAPTED FOR MINE CLEARING PURPOSES AND HAVING A LONGITUDINAL AXIS COMPRISING, IN COMBINATION, A BATTERY OF SUBSTANTIALLY VERTICAL ROCKETS EQUIPPED EACH WITH TWO COAXIAL COUNTERING NOZZLES OF UNEQUAL AREA AND TRANSVERSELY RANKED WITH REGARD TO SAID AXIS, A FIRST SERIES OF LARGER AREA NOZZLES BEING DIRECTED TOWARD THE GROUND IN SUCH MANNER THAT THE HOT GASES EJECTED APPLY A HIGH PRESSURE ONTO THE GROUND ALONG AT LEAST A CONTINUOUS LINE SUBSTANTIALLY AS BROAD AS SAID FIRST SERIES AND A SECOND SERIES OF SMALLER AREA NOZZLES BEING DIRECTED UPWARD SO AS TO REDUCE THE RESULTING THRUST APPLIED TO THE PLATFORM TO A VALUE SUBSTANTIALLY EQUAL TO ITS WEIGHT, PROPULSIVE AND STABILIZING MEANS, WHEREBY THE PLATFORM HOVERING AT A SMALL HEIGHT CAUSES THE MINES TO EXPLODE WITHIN A PATH CROSSING A MINE FIELD.

References Cited (Backward Citations)

US2409848A Cited
US2613497A Cited
US2771041A Cited
US2850976A Cited
US2947500A Cited
US2981501A Cited
US3022026A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1966-12-02 1967-06-03 1967-12-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1970-12-02 1971-06-03 1971-12-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1974-12-02 1975-06-03 1975-12-03 $7700.00 Window Closed / Lapsed

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