Patent US3373564A successfully refreshed from Google Patents.
US3373564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for controlling rocket engines and the like
Assignee: Hayes International Corp
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Filing: 1966-04-26
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Granted: 1968-03-19
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Expires: 1986-04-26
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Maybin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:00
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/08; F02K9/10; F02K9/12; F02K9/72
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
THE PROCESS OF OBTAINING A CONTROL SIGNAL FOR AN ENGINE OF THE TYPE WHEREIN A FLUID UNDER PRESSURE IS UTILIZED TO PRODUCE THE FORCE WHICH OPERATES THE ENGINE WHEN THE TOTAL IMPULSE PRODUCED BY SAID FORCE REACHES A PREDETERMINED VALUE WHICH COMPRISES: (A) OBTAINING AN ANALOGUE SIGNAL CORRESPONDING TO THE PRESSURE OF THE FLUID IN THE ENGINE, (B) INTEGRATING SAID ANALOGUE SIGNAL WITH RESPECT TO TIME TO OBTAIN A SECOND SIGNAL ANALOGOUS TO THE TOTAL IMPULSE PRODUCED DURING THE TIME INTERVAL OF INTEGRATION, AND (C) PRODUCING A CONTROL SIGNAL WHEN SAID SECOND SIGNAL REACHES A PREDETERMINED VALUE.
Claim 2
Dependent Claim
97 words
THE PROCESS OF OBTAINING A CONTROL SIGNAL FOR AN ENGINE OF THE TYPE WHEREIN A FLUID UNDER PRESSURE IS UTILIZED TO PRODUCE THE FORCE WHICH OPERATES THE ENGINE WHEN THE TOTAL IMPULSE PRODUCED BY SAID FORCE REACHES A PREDETERMINED VALUE WHICH COMPRISES: (A) OBTAINING AN ANALOGUE SIGNAL CORRESPONDING TO THE PRESSURE OF THE FLUID IN THE ENGINE, (B) INTEGRATING SAID ANALOGUE SIGNAL WITH RESPECT TO TIME TO OBTAIN A SECOND SIGNAL ANALOGOUS TO THE TOTAL IMPULSE PRODUCED DURING THE TIME INTERVAL OF INTEGRATION, AND (C) PRODUCING A CONTROL SIGNAL WHEN SAID SECOND SIGNAL REACHES A PREDETERMINED VALUE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-19 | 1971-09-18 | 1972-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-19 | 1975-09-18 | 1976-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-19 | 1979-09-18 | 1980-03-19 | $7700.00 | Window Closed / Lapsed |