Patent US3745877A successfully refreshed from Google Patents.
US3745877A
Expired / Lapsed
US
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Intervalometer for parachute flare launcher
Assignee: United States Department of the Air Force
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Filing: 1971-12-22
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Granted: 1973-07-17
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Expires: 1991-12-22
Abstract
Abstract A control apparatus for automatically launching parachute flares from launchers which may be positioned in various different locations. The control apparatus which is located at a distance from the launchers contains the firing, timing and safety circuits necessary to launch the parachute flares in sequence.
Inventors
- 👤 J Dobson
- 👤 J Miller
- 👤 T Dellecave
- 👤 R Konegen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:34
CPC Classifications
F; F41; F41A; F41A19/00; F41A19/58; F41A19/64; F41A19/65
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
178 words
An intervalometer apparatus for a parachute flare launcher system comprising in combination: a control box providing output control signals, said control box having a logic power voltage, said logic power voltage being applied to a fire switch and a stop switch, said fire switch being connected to a safe-arm switch, said fire switch providing a fire output signal, said stop switch providing a stop output signal, said output control signal being said fire and stop output signals, a plurality of sequencer units, each of said plurality of sequencer units respectively connected to said control box by individual 1000 foot cables, each of said plurality of sequencer units receiving said output control signals, said sequencer units providing a firing power output signal, said firing power output signal occurring in a predetermined time interval, said firing power output signal having a predetermined output level, and, a plurality of parachute flare launcher units having a predetermined number of parachute flares, said plurality of parachute flare launcher units being respectively connected to said plurality of sequencer units by an 8 foot cable.
Claim 2
Dependent Claim
178 words
An intervalometer apparatus for a parachute flare launcher system comprising in combination: a control box providing output control signals, said control box having a logic power voltage, said logic power voltage being applied to a fire switch and a stop switch, said fire switch being connected to a safe-arm switch, said fire switch providing a fire output signal, said stop switch providing a stop output signal, said output control signal being said fire and stop output signals, a plurality of sequencer units, each of said plurality of sequencer units respectively connected to said control box by individual 1000 foot cables, each of said plurality of sequencer units receiving said output control signals, said sequencer units providing a firing power output signal, said firing power output signal occurring in a predetermined time interval, said firing power output signal having a predetermined output level, and, a plurality of parachute flare launcher units having a predetermined number of parachute flares, said plurality of parachute flare launcher units being respectively connected to said plurality of sequencer units by an 8 foot cable.
Claim 3
Dependent Claim
30 words
An intervalometer apparatus as described in claim 1 wherein said control box further includes a rotary switch to provide said output control signal to said plurality of sequencer units individually.
Claim 4
Dependent Claim
16 words
An intervalometer apparatus as described in claim 1 where said predetermined time interval is 1.5 seconds.
Claim 5
Dependent Claim
18 words
An intervalometer apparatus as described in claim 1 wherein said plurality of sequencer units comprises four sequencer units.
References Cited (Backward Citations)
US3181822A
Cited
US3598015A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |