US4155306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Out-of-line igniter
Assignee: United States Department of the Navy
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Filing: 1977-06-28
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Granted: 1979-05-22
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Expires: 1997-06-28
Abstract
Abstract An out-of-line igniter assembly having a primer located out-of-line of an nition train and movable to an in-line position for ignition of a main pyrotechnic charge. A housing has a raceway connected with a gas expansion chamber and a pellet chamber, and a slider having a primer and a striker assembly is movable in the raceway. Premature detonation of the primer causes the primer to fire into the gas expansion chamber but, in normal operation, the slider is moved so that the primer is fired into the pellet chamber. Movement of the slider causes the striker assembly to actuate when the slider is in an in-line position with the pellet chamber.
Inventors
- 👤 Stanley J. Herold
- 👤 Donald E. Lagrange
- 👤 Steven R. Norris
- 👤 David K. Sanders
- 👤 John E. Wildridge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:17
CPC Classifications
F; F42; F42C; F42C15/00; F42C15/18; F42C15/184
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
154 words
In an aircraft parachute flare having a flare composition and a parachute, an igniter assembly comprising, a housing, an ignition composition in said housing for igniting said flare composition, a slider in said housing having a firing pin attached thereto, a firing pin spring attached to said slider for actuating said firing pin, a primer in said slider positioned to be detonated by said firing pin, said slider being movable in said housing to position said primer in an out-of-line position relative to said ignition composition and an in-line position relative to said ignition composition, a lanyard connected between said parachute and said slider for moving said slider in said housing, and cam means in said housing for cocking said firing pin and said firing pin spring when said slider is moved by said lanyard and for triggering said firing pin to detonate said primer when said primer is aligned with said ignition composition.
Claim 2
Dependent Claim
154 words
In an aircraft parachute flare having a flare composition and a parachute, an igniter assembly comprising, a housing, an ignition composition in said housing for igniting said flare composition, a slider in said housing having a firing pin attached thereto, a firing pin spring attached to said slider for actuating said firing pin, a primer in said slider positioned to be detonated by said firing pin, said slider being movable in said housing to position said primer in an out-of-line position relative to said ignition composition and an in-line position relative to said ignition composition, a lanyard connected between said parachute and said slider for moving said slider in said housing, and cam means in said housing for cocking said firing pin and said firing pin spring when said slider is moved by said lanyard and for triggering said firing pin to detonate said primer when said primer is aligned with said ignition composition.
Claim 3
Dependent Claim
47 words
In an aircraft parachute flare having a flare composition and a parachute, an igniter assembly as set forth in claim 1 having means on said lanyard for locking said slider with said housing when said primer is positioned in an out-of-line position relative to said ignition composition.
Claim 4
Dependent Claim
44 words
In an aircraft parachute flare having a flare composition and a parachute, an igniter assembly as set forth in claim 1 having means for locking said slider with said housing when said primer is in an in-line position relative to said pyrotechnic ignition composition.
Claim 5
Dependent Claim
249 words
In an aircraft parachute flare having a flare composition and a parachute, an igniter assembly comprising, a housing having a raceway, a gas expansion chamber and a pellet chamber and having a first passageway connecting said gas expansion chamber and said raceway and a second passageway connecting said pellet chamber and said raceway, a quantity of ignition pellets in said pellet chamber, a slider slidably positioned in said raceway and having a pivotally mounted firing pin attached thereto, a firing pin spring attached to said slider for actuating said firing pin, a primer in said slider positioned to be detonated by said firing pin, first means for locking said slider to said housing with said primer being aligned with said first passageway whereby inadvertent detonation of said primer causes said primer to fire into said gas expansion chamber, second means for locking said slider to said housing with said primer being aligned with said second passageway whereby detonation of said primer causes said primer to fire into said pellet chamber, a lanyard connected with said parachute and said slider for moving said slider in said raceway upon parachute deployment, and cam means in said raceway for cocking said firing pin and said firing pin spring when said slider is moved by said lanyard and for triggering said firing pin when said slider is moved to a position where said primer is aligned with said second passageway whereby said firing pin spring rotates said firing pin to detonate said primer.
Claim 6
Dependent Claim
249 words
In an aircraft parachute flare having a flare composition and a parachute, an igniter assembly comprising, a housing having a raceway, a gas expansion chamber and a pellet chamber and having a first passageway connecting said gas expansion chamber and said raceway and a second passageway connecting said pellet chamber and said raceway, a quantity of ignition pellets in said pellet chamber, a slider slidably positioned in said raceway and having a pivotally mounted firing pin attached thereto, a firing pin spring attached to said slider for actuating said firing pin, a primer in said slider positioned to be detonated by said firing pin, first means for locking said slider to said housing with said primer being aligned with said first passageway whereby inadvertent detonation of said primer causes said primer to fire into said gas expansion chamber, second means for locking said slider to said housing with said primer being aligned with said second passageway whereby detonation of said primer causes said primer to fire into said pellet chamber, a lanyard connected with said parachute and said slider for moving said slider in said raceway upon parachute deployment, and cam means in said raceway for cocking said firing pin and said firing pin spring when said slider is moved by said lanyard and for triggering said firing pin when said slider is moved to a position where said primer is aligned with said second passageway whereby said firing pin spring rotates said firing pin to detonate said primer.
Claim 7
Dependent Claim
47 words
In an aircraft parachute flare having a flare composition and a parachute, an igniter assembly as set forth in claim 4 wherein said second means for locking said slider to said housing comprises a stop arm on said slider engageable with a stop slot in said raceway.
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) | 1982-05-21 | 1982-11-20 | 1983-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-21 | 1986-11-20 | 1987-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-21 | 1990-11-20 | 1991-05-22 | $7700.00 | Window Closed / Lapsed |