US3570404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical pyrotechnic programming system
Assignee: Unidynamics Phoenix Inc
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Filing: 1968-06-21
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Granted: 1971-03-16
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Expires: 1988-06-21
Abstract
Abstract An electrical pyrotechnic programming system, including a pyrotechnic signal source for activating an electrical power source. The power source provides current to an electrical switching system, including individual switches responsive to velocity acceleration and barometric altitude. Closure of the switches after actuation of the electrical power source produces a pyrotechnic output signal by igniting bridge wires. The power source comprises parallel connected batteries, the first of which is a type known as a thermal battery, and the second of which is a more conventional nickel-cadmium battery.
Inventors
- 👤 Kenneth E Pope
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:50
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/04; F; F42; F42C; F42C11/00; F42C11/06
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
159 words
A programming system comprising: a pyrotechnic signal source; a first battery having either an active or an inactive state and being connected to said signal source in a manner to be responsive to pyrotechnic energy for conversion from said inactive state to said active state; a secondary battery having either a charged state or a normally discharged state connected to said first battery through a nonlinear conducting element for receiving an electrical charge from said first battery when the latter is in its active state, said second battery being responsive to said electrical charge for conversion to said charged state; a plurality of environmental sensing electrical switches; means electrically connecting said switches to said batteries; a pyrotechnic initiator connected to said switches in a manner to be responsive to the actuation of one of said switches and either the active state of said first battery or the charged state of said second battery for producing a pyrotechnic output signal.
Claim 2
Dependent Claim
159 words
A programming system comprising: a pyrotechnic signal source; a first battery having either an active or an inactive state and being connected to said signal source in a manner to be responsive to pyrotechnic energy for conversion from said inactive state to said active state; a secondary battery having either a charged state or a normally discharged state connected to said first battery through a nonlinear conducting element for receiving an electrical charge from said first battery when the latter is in its active state, said second battery being responsive to said electrical charge for conversion to said charged state; a plurality of environmental sensing electrical switches; means electrically connecting said switches to said batteries; a pyrotechnic initiator connected to said switches in a manner to be responsive to the actuation of one of said switches and either the active state of said first battery or the charged state of said second battery for producing a pyrotechnic output signal.
Claim 3
Dependent Claim
24 words
The combination set forth in claim 1 wherein said first battery is a thermal battery and wherein said second battery is a nickel-cadmium battery.
Claim 4
Dependent Claim
126 words
In a programming system utilizing pyrotechnic input energy for initiation and a pyrotechnic output signal, and having a power source responsive to said pyrotechnic input energy for generating electrical power for said system, the improvement comPrising: a first battery having an active state or an inactive state, said latter state condition being responsive to said pyrotechnic input energy for conversion to said active state; a second battery having a charged state or a discharged state and connected to said first battery in a manner for receiving an electrical charge from said first battery when the latter is in its active state, said second battery being responsive to current flow through a unidirectional current flow circuit element to provide said electrical charge for assuming said charged state.
Claim 5
Dependent Claim
126 words
In a programming system utilizing pyrotechnic input energy for initiation and a pyrotechnic output signal, and having a power source responsive to said pyrotechnic input energy for generating electrical power for said system, the improvement comPrising: a first battery having an active state or an inactive state, said latter state condition being responsive to said pyrotechnic input energy for conversion to said active state; a second battery having a charged state or a discharged state and connected to said first battery in a manner for receiving an electrical charge from said first battery when the latter is in its active state, said second battery being responsive to current flow through a unidirectional current flow circuit element to provide said electrical charge for assuming said charged state.
Claim 6
Dependent Claim
23 words
The combination set forth in claim 3 wherein said first battery is a thermal battery and said second battery is a nickel-cadmium battery.
Claim 7
Dependent Claim
57 words
The combination set forth in claim 3 wherein said first battery has a substantially greater charge storage time when in said inactive state than said second battery has in said charged state and wherein said first battery has a substantially lesser charge utilization time when in said active state than said second battery in said charged state.
References Cited (Backward Citations)
US2697736A
Cited
US3420176A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-15 | 1974-09-14 | 1975-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-15 | 1978-09-14 | 1979-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-15 | 1982-09-14 | 1983-03-16 | $7700.00 | Window Closed / Lapsed |