Patent US1674009A successfully refreshed from Google Patents.
Patent US3071925A successfully refreshed from Google Patents.
US3071925A
Expired / Lapsed
US
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Injector head for liquid rocket
Assignee: RTX Corp
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Filing: 1959-06-23
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Granted: 1963-01-08
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Expires: 1979-06-23
Abstract
No abstract record available.
Inventors
- 👤 Walter A Ledwith
- 👤 Marcus C Benedict
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:27
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/42; F02K9/44; F02K9/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
AN INJECTOR HEAD FOR A ROCKET CHAMBER, INCLUDING A SUPPORTING PLATE, A PLURALITY OF INJECTOR ELEMENTS MOUNTED ON SAID PLATE, EACH OF SAID INJECTOR ELEMENTS HAVING FIRST PASSAGE MEANS FOR THE DISCHARGE OF A FIRST PROPELLANT THERETHROUGH AND SECOND PASSAGE MEANS FOR THE DISCHARGE OF A SECOND PROPELLANT THERETHROUGH, AND SEALING MEANS ATTACHED TO AND EXTENDING BETWEEN SAID ELEMENTS TO FORM WITH SAID SUPPORTING PLATE AND ELEMENTS A CHAMBER FROM WHICH THE SECOND PASSAGE MEANS EXTENDS.
Claim 2
Dependent Claim
76 words
AN INJECTOR HEAD FOR A ROCKET CHAMBER, INCLUDING A SUPPORTING PLATE, A PLURALITY OF INJECTOR ELEMENTS MOUNTED ON SAID PLATE, EACH OF SAID INJECTOR ELEMENTS HAVING FIRST PASSAGE MEANS FOR THE DISCHARGE OF A FIRST PROPELLANT THERETHROUGH AND SECOND PASSAGE MEANS FOR THE DISCHARGE OF A SECOND PROPELLANT THERETHROUGH, AND SEALING MEANS ATTACHED TO AND EXTENDING BETWEEN SAID ELEMENTS TO FORM WITH SAID SUPPORTING PLATE AND ELEMENTS A CHAMBER FROM WHICH THE SECOND PASSAGE MEANS EXTENDS.
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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |