US3712170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft rocket firing system
Assignee: United States Department of the Navy
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Filing: 1970-06-09
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Granted: 1973-01-23
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Expires: 1990-06-09
Abstract
Abstract A system for firing aircraft rockets including a fluidic generator exposed to the airstream passing the launching aircraft in flight for generating the electrical power necessary to operate the firing circuit. The fluidic generator produces a voltage output when a predetermined minimum air speed is achieved to charge capacitors in the firing circuit. Silicon controlled rectifiers are shunted across the capacitors to immediately discharge them when the aircraft decelerates below the predetermined minimum air speed.
Inventors
- 👤 C Campagnuolo
- 👤 C Mckindra
- 👤 L Woolston
- 👤 C Sewell
- 👤 F Villarroel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:41
CPC Classifications
F; F42; F42C; F42C15/00; F42C15/28; F42C15/29; F41; F41A; F41A19/00; F41A19/58; F41A19/60; H; H02; H02K; H02K35/00; H02K35/06; H02K7/00; H02K7/18; H02K7/1892
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
119 words
An electrical system for firing rockets from an aircraft comprising: a velocity discriminating air-driven transducer means responsive to air flow velocities greater than a predetermined minimum velocity for producing an a.c. voltage output; a firing circuit including rectifier means coupled to the output of said transducer means for converting an a.c. input to d.c. output; capacitor means coupled to said rectifier means for storing electrical energy; voltage limiting means coupling the output of said rectifier means to each of said capacitor means; shunting means including silicon controlled rectifiers coupled across each capacitor means for discharging said capacitor means upon termination of an outPut from said transducer means; and switch means for coupling each capacitor means to the rocket motor.
Claim 2
Dependent Claim
119 words
An electrical system for firing rockets from an aircraft comprising: a velocity discriminating air-driven transducer means responsive to air flow velocities greater than a predetermined minimum velocity for producing an a.c. voltage output; a firing circuit including rectifier means coupled to the output of said transducer means for converting an a.c. input to d.c. output; capacitor means coupled to said rectifier means for storing electrical energy; voltage limiting means coupling the output of said rectifier means to each of said capacitor means; shunting means including silicon controlled rectifiers coupled across each capacitor means for discharging said capacitor means upon termination of an outPut from said transducer means; and switch means for coupling each capacitor means to the rocket motor.
Claim 3
Dependent Claim
62 words
The system of claim 1 wherein said source of electrical energy includes means defining a cavity having one end open to an ambient airstream, a resilient diaphragm positioned within said cavity for vibrational movement in response to resonance of the airstream in said cavity, said transducer being coupled to said diaphragm for generating said a.c. output in response to said diaphragm movement.
Claim 4
Dependent Claim
52 words
The system of claim 2 wherein said means defining a cavity includes means defining a frusto-conical cavity having the convergent end of said conical cavity in fluid communication with a cylindrical cavity extension, said diaphragm being sealingly attached to the divergent end of said conical cavity and forming an end closure therefor.
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) | 1976-01-23 | 1976-07-24 | 1977-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-23 | 1980-07-24 | 1981-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-23 | 1984-07-24 | 1985-01-23 | $7700.00 | Window Closed / Lapsed |