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US3122885A Expired / Lapsed US ⏱️ 0.0 years remaining

Injector for bipropellant rocket engines

Assignee: Individual
•
Filing: 1961-06-19
•
Granted: 1964-03-03
•
Expires: 1981-06-19
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Abstract

No abstract record available.

Inventors

  • 👤 Marcus F Heidmann

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 13:34
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/42; F02K9/44; F02K9/52

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 150 words
A WAFER-LIKE CHECKERBOARD, FUEL INJECTOR ASSEMBLY FOR A BIPROPELLANT ROCKET MOTOR IN WHICH SAID INJECTOR ASSEMBLY HAS AN INJECTOR FACE PLATE, SEPARATE MANIFOLDS FOR THE FUEL AND FOR THE OXIDANT, OXIDANT INJECTOR TUBES, SAID OXIDANT INJECTOR TUBES ENDING IN INJECTION TUBES, SAID OXIDANT INJECTOR TUBES ENDING IN INJECTION ORIFICES AT THE FACE OF SAID INJECTOR FACE PLATE, SAID TUBES BEING IN COMMUNICATION WITH SAID OXIDANT MANIFOLD, A DISTRIBUTION PLATE HAVING DISTRIBUTION ORIFICES THEREIN AND SPACED FROM SAID OXIDANT MANIFOLD BY SAID OXIDANT INJECTOR TUBES, SAID DISTRIBUTION ORIFICES AFFORDING PASSAGE OF THE FUEL TO INJECTOR ORIFICES IN THE FACE PLATE, EACH SAID DISTRIBUTION ORIFICE BEING LOCATED IN THE CENTER OF A SQUARE FORMED BY SAID OXIDANT INJECTOR ORIFICES, SAID FUEL INJECTOR ORIFICES BEING LOCATED BETWEEN ADJACENT OXIDANT INJECTOR ORIFICES, SO THAT EACH DISTRIBUTION ORIFICE PARTIALLY SUPPLIED FOUR INJECTOR ORIFICES AND EACH FUEL INJECTOR ORIFICE IS SYMMETRICALLY SUPPLIED FROM DIAMETRICALLY OPPOSED DIRECTIONS.
Claim 2
Dependent Claim 150 words
A WAFER-LIKE CHECKERBOARD, FUEL INJECTOR ASSEMBLY FOR A BIPROPELLANT ROCKET MOTOR IN WHICH SAID INJECTOR ASSEMBLY HAS AN INJECTOR FACE PLATE, SEPARATE MANIFOLDS FOR THE FUEL AND FOR THE OXIDANT, OXIDANT INJECTOR TUBES, SAID OXIDANT INJECTOR TUBES ENDING IN INJECTION TUBES, SAID OXIDANT INJECTOR TUBES ENDING IN INJECTION ORIFICES AT THE FACE OF SAID INJECTOR FACE PLATE, SAID TUBES BEING IN COMMUNICATION WITH SAID OXIDANT MANIFOLD, A DISTRIBUTION PLATE HAVING DISTRIBUTION ORIFICES THEREIN AND SPACED FROM SAID OXIDANT MANIFOLD BY SAID OXIDANT INJECTOR TUBES, SAID DISTRIBUTION ORIFICES AFFORDING PASSAGE OF THE FUEL TO INJECTOR ORIFICES IN THE FACE PLATE, EACH SAID DISTRIBUTION ORIFICE BEING LOCATED IN THE CENTER OF A SQUARE FORMED BY SAID OXIDANT INJECTOR ORIFICES, SAID FUEL INJECTOR ORIFICES BEING LOCATED BETWEEN ADJACENT OXIDANT INJECTOR ORIFICES, SO THAT EACH DISTRIBUTION ORIFICE PARTIALLY SUPPLIED FOUR INJECTOR ORIFICES AND EACH FUEL INJECTOR ORIFICE IS SYMMETRICALLY SUPPLIED FROM DIAMETRICALLY OPPOSED DIRECTIONS.

References Cited (Backward Citations)

US2733726A Cited
US2217649A Cited
US2396567A Cited
US2532708A Cited
US2405785A Cited
US2958183A Cited
US2929208A Cited
US2749706A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1967-03-03 1967-09-02 1968-03-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1971-03-03 1971-09-02 1972-03-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1975-03-03 1975-09-02 1976-03-03 $7700.00 Window Closed / Lapsed

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