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US3178884A Expired / Lapsed US ⏱️ 0.0 years remaining

Pulse rocket

Assignee: Marquardt Corp
•
Filing: 1960-11-14
•
Granted: 1965-04-20
•
Expires: 1980-11-14
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Abstract

No abstract record available.

Inventors

  • 👤 Jr Warren P Boardman

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 07:37
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/94

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 193 words
A PULSE ROCKET COMPRISING AN INJECTOR BLOCK, A COMBUSTION CHAMBER SECURED TO SAID BLOCK AND EXHAUSTING THROUGH A NOZZLE, A PAIR OF OPENINGS IN SAID BLOCK IN COMMUNICATION WITH THE INTERIOR OF SAID COMBUSTION CHAMBER, AN INJECTOR PLUNGER SLIDABLE IN EACH OF SAID OPENINGS WITH THE SLIDING SURFACE OF SAID PLUNGER IN SEALING COMPRISING WITH THE SURFACE OF SAID OPENING, EACH PLUNGER COMPRISING AN ELONGATED BODY AND HAVING AN ELONGATED SURFACE GROOVE TO PROVIDE A MANIFOLD, A PASSAGE IN EACH OF SAID PLUNGERS FOR CONNECTING SAID MANIFOLD WITH THE EXTERIOR OF SAID PLUNGER THROUGH AN ORIFICE END OF THE PASSAGE, MEANS FOR RECIPROCATING BOTH SAID PLUNGERS TOGETHER TO MOVE SAID ORIFICE ENDS OF SAID PASSAGES INTO AND OUT OF SAID COMBUSTION CHAMBER, SAID ORIFICE ENDS BEING CLOSED BY SAID BLOCK WHEN OUT OF SAID COMBUSTION CHAMBER, A FUEL CONDUIT IN SAID BLOCK CONTINUALLY IN COMMUNICATION WITH THE MANIFOLD FOR ONE OF SAID PLUNGERS, AND AN OXIDIZER CONDUIT IN SAID BLOCK CONTINUALLY IN COMMUNICATION WITH THE MANIFOLD FOR THE OTHER OF SAID PLUNGERS, THE ORIFICE ENDS OF SAID PASSAGES DIRECTING FUEL AND OXIDIZER TOGETHER FOR COMBUSTION WHILE THE ENDS ARE WITHIN SAID COMBUSTION CHAMBER.
Claim 2
Dependent Claim 193 words
A PULSE ROCKET COMPRISING AN INJECTOR BLOCK, A COMBUSTION CHAMBER SECURED TO SAID BLOCK AND EXHAUSTING THROUGH A NOZZLE, A PAIR OF OPENINGS IN SAID BLOCK IN COMMUNICATION WITH THE INTERIOR OF SAID COMBUSTION CHAMBER, AN INJECTOR PLUNGER SLIDABLE IN EACH OF SAID OPENINGS WITH THE SLIDING SURFACE OF SAID PLUNGER IN SEALING COMPRISING WITH THE SURFACE OF SAID OPENING, EACH PLUNGER COMPRISING AN ELONGATED BODY AND HAVING AN ELONGATED SURFACE GROOVE TO PROVIDE A MANIFOLD, A PASSAGE IN EACH OF SAID PLUNGERS FOR CONNECTING SAID MANIFOLD WITH THE EXTERIOR OF SAID PLUNGER THROUGH AN ORIFICE END OF THE PASSAGE, MEANS FOR RECIPROCATING BOTH SAID PLUNGERS TOGETHER TO MOVE SAID ORIFICE ENDS OF SAID PASSAGES INTO AND OUT OF SAID COMBUSTION CHAMBER, SAID ORIFICE ENDS BEING CLOSED BY SAID BLOCK WHEN OUT OF SAID COMBUSTION CHAMBER, A FUEL CONDUIT IN SAID BLOCK CONTINUALLY IN COMMUNICATION WITH THE MANIFOLD FOR ONE OF SAID PLUNGERS, AND AN OXIDIZER CONDUIT IN SAID BLOCK CONTINUALLY IN COMMUNICATION WITH THE MANIFOLD FOR THE OTHER OF SAID PLUNGERS, THE ORIFICE ENDS OF SAID PASSAGES DIRECTING FUEL AND OXIDIZER TOGETHER FOR COMBUSTION WHILE THE ENDS ARE WITHIN SAID COMBUSTION CHAMBER.

References Cited (Backward Citations)

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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) 1968-04-19 1968-10-19 1969-04-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1972-04-19 1972-10-19 1973-04-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1976-04-19 1976-10-19 1977-04-20 $7700.00 Window Closed / Lapsed

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