US3330503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Re-entry guidance system
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1964-08-10
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Granted: 1967-07-11
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Expires: 1984-08-10
Abstract
No abstract record available.
Inventors
- 👤 John A Love
- 👤 Lucien W Neustadt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:15
CPC Classifications
B; B64; B64G; B64G1/00; B64G1/14; B64G1/22; B64G1/24; B64G1/244; B64G1/62; B64G3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A SYSTEM FOR GUIDING A LIFT GENERATING VEHICLE COMPRISING MEANS FOR MESURING ACCELERATION IN THE PLANE OF SYMMETRY OF SAID VEHICLE AS A FUNCTION OF DYNAMIC PRESSURE, MEANS FOR MEASURING AND CONTROLLING THE ROLL ATTITUDE OF SAID VEHICLE, A TIMER PROGRAMMER HAVING A PRE-RECORDED INDICIA OF SIMULATED ACCELERATIONS FOR A PREFERRED TRAJECTORY OF SAID VEHICLE, MEANS DURING ATMOSPHERIC FLIGHT OF SAID VEHICLE FOR CONTINUOUSLY COMPARING THE MEASURED ACCELERATION AGAINST THE OUTPUT OF SAID TIMER PROGRAMMER TO GENERATE AND ERROR SIGNAL, AND MEANS RESPONSIVE TO SAID ERROR SIGNAL FOR VARYING THE LIFT GENERATED BY SAID VEHICLE IN A PREFERRED ATTITUDE WHEREBY THE LANDING POSITION OF SAID VEHICLE IS ACCURATELY DETERMINED.
Claim 2
Independent Claim
109 words
A SYSTEM FOR GUIDING A LIFT GENERATING VEHICLE COMPRISING MEANS FOR MESURING ACCELERATION IN THE PLANE OF SYMMETRY OF SAID VEHICLE AS A FUNCTION OF DYNAMIC PRESSURE, MEANS FOR MEASURING AND CONTROLLING THE ROLL ATTITUDE OF SAID VEHICLE, A TIMER PROGRAMMER HAVING A PRE-RECORDED INDICIA OF SIMULATED ACCELERATIONS FOR A PREFERRED TRAJECTORY OF SAID VEHICLE, MEANS DURING ATMOSPHERIC FLIGHT OF SAID VEHICLE FOR CONTINUOUSLY COMPARING THE MEASURED ACCELERATION AGAINST THE OUTPUT OF SAID TIMER PROGRAMMER TO GENERATE AND ERROR SIGNAL, AND MEANS RESPONSIVE TO SAID ERROR SIGNAL FOR VARYING THE LIFT GENERATED BY SAID VEHICLE IN A PREFERRED ATTITUDE WHEREBY THE LANDING POSITION OF SAID VEHICLE IS ACCURATELY DETERMINED.
References Cited (Backward Citations)
US3164338A
Cited
US3188019A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |