Patent US3104613A successfully refreshed from Google Patents.
US3104613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rocket projectile
Assignee: Atlantic Research Corp
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Filing: 1957-09-18
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Granted: 1963-09-24
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Expires: 1977-09-18
Abstract
No abstract record available.
Inventors
- 👤 Rice Millard Lee
- 👤 Thomas J O'donnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:34
CPC Classifications
F; F42; F42B; F42B15/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
IN A ROCKET-ASSISTED PROJECTILE, A POSTERIORLY POSITIONED COMBUSTION CHAMBER ADAPTED TO BURN A LIQUID MONOPROPELLANT AND HAVING AT LEAST ONE REAR NOZZLE FOR PRODUCING FORWARD THRUST BY REARWARD DISCHARGE OF HIGH VELOCITY COMBUSTION GASES, AN ANNULAR RESERVOIR CHAMBER FORWARD OF SAID COMBUSTION CHAMBER ADAPTED TO CONTAIN LIQUID MONOPROPELLANT, PUMPING MEANS FOR FORCING SAID MONOPROPELLANT OUT OF THE RESERVOIR AND INTO THE COMBUSTION CHAMBER, A FLOATING DIFFERENTIAL PISTON AXIALLY POSITIONED ANTERIORLY OF SAID COMBUSTION CHAMBER, THE FORWARD LARGER FACE OF SAID DIFFERENTIAL PISTON BEING IN OPEN COMMUNICATION WITH AND DIRECTLY RESPONSIVE TO RAM PRESSURE ON THE NOSE OF THE PROJECTILE, AND THE SMALLER REAR PORTION OF SAID DIFFERENTIAL PISTON FORMING A VALVE MEMBER AXIALLY AND SLIDABLY POSITIONED IN A PORT OF VARIABLE CROSS-SECTIONAL THROAT AREA OPENING POSTERIORLY INTO THE FORWARD END OF THE COMBUSTION CHAMBER, WHEREBY THE SMALLER REAR FACE OF THE DIFFERENTIAL PISTON IS ACTED ON AND IS DIRECTLY RESPONSIVE TO COMBUSTION CHAMBER PRES-
Claim 2
Dependent Claim
154 words
IN A ROCKET-ASSISTED PROJECTILE, A POSTERIORLY POSITIONED COMBUSTION CHAMBER ADAPTED TO BURN A LIQUID MONOPROPELLANT AND HAVING AT LEAST ONE REAR NOZZLE FOR PRODUCING FORWARD THRUST BY REARWARD DISCHARGE OF HIGH VELOCITY COMBUSTION GASES, AN ANNULAR RESERVOIR CHAMBER FORWARD OF SAID COMBUSTION CHAMBER ADAPTED TO CONTAIN LIQUID MONOPROPELLANT, PUMPING MEANS FOR FORCING SAID MONOPROPELLANT OUT OF THE RESERVOIR AND INTO THE COMBUSTION CHAMBER, A FLOATING DIFFERENTIAL PISTON AXIALLY POSITIONED ANTERIORLY OF SAID COMBUSTION CHAMBER, THE FORWARD LARGER FACE OF SAID DIFFERENTIAL PISTON BEING IN OPEN COMMUNICATION WITH AND DIRECTLY RESPONSIVE TO RAM PRESSURE ON THE NOSE OF THE PROJECTILE, AND THE SMALLER REAR PORTION OF SAID DIFFERENTIAL PISTON FORMING A VALVE MEMBER AXIALLY AND SLIDABLY POSITIONED IN A PORT OF VARIABLE CROSS-SECTIONAL THROAT AREA OPENING POSTERIORLY INTO THE FORWARD END OF THE COMBUSTION CHAMBER, WHEREBY THE SMALLER REAR FACE OF THE DIFFERENTIAL PISTON IS ACTED ON AND IS DIRECTLY RESPONSIVE TO COMBUSTION CHAMBER PRES-
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) | 1966-09-23 | 1967-03-25 | 1967-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-23 | 1971-03-25 | 1971-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-23 | 1975-03-25 | 1975-09-24 | $7700.00 | Window Closed / Lapsed |