US4171669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Decoy flare
Assignee: United States Department of the Navy
•
Filing: 1978-02-13
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Granted: 1979-10-23
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Expires: 1998-02-13
Abstract
Abstract A decoy flare cartridge for use in an aircraft photoflash cartridge rack. drocarbon compound plus gelling agents are placed in a photoflash cartridge. A primer in the base of the cartridge is fired to propel a piston which forces the gel out of the cartridge through an orifice plate. The expelled hydrocarbon compounds are then ignited to form an infrared source for decoying a hostile infrared seeking missile away from the tailpipe of the decoy-carrying aircraft.
Inventors
- 👤 Edward A. Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:42
CPC Classifications
F; F41; F41J; F41J2/00; F41J2/02; F42; F42B; F42B4/00; F42B4/26
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
129 words
A decoy flare cartridge, comprising: a hollow case having an open end and a closed end, and having a primer and an expulsion charge retained at said closed end in cooperate proximity; a piston slidably position within said hollow case for motion between first and second postions, said piston sealingly engaging the inner walls of said case; an orifice plate retained within said hollow case at said open end; a cap attached to said case and closing said open end; an internal groove in said case near said open end between said orifice plate and said cap; a retaining ring occupying said groove for retaining said orifice plate within said case; and a charge of jelled hydrocarbon fuel contained within said case between said piston and said orifice plate.
Claim 2
Dependent Claim
129 words
A decoy flare cartridge, comprising: a hollow case having an open end and a closed end, and having a primer and an expulsion charge retained at said closed end in cooperate proximity; a piston slidably position within said hollow case for motion between first and second postions, said piston sealingly engaging the inner walls of said case; an orifice plate retained within said hollow case at said open end; a cap attached to said case and closing said open end; an internal groove in said case near said open end between said orifice plate and said cap; a retaining ring occupying said groove for retaining said orifice plate within said case; and a charge of jelled hydrocarbon fuel contained within said case between said piston and said orifice plate.
Claim 3
Dependent Claim
15 words
A decoy flare cartridge as set forth in claim 1 in combination with firing apparatus.
Claim 4
Dependent Claim
21 words
A decoy flare cartridge and firing apparatus as set forth in claim 2 wherein said firing apparatus comprises a photoflash rack.
Claim 5
Dependent Claim
17 words
A decoy flare cartridge as set forth in claim 1 wherein said expulsion charge comprises black powder.
Claim 6
Dependent Claim
17 words
A decoy flare cartridge as set forth in claim 1 wherein said expulsion charge comprises boron-potassium nitrate.
References Cited (Backward Citations)
US3243270A
Cited
US3150848A
Cited
US3841219A
Cited
US3473472A
Cited
US3808940A
Cited
US3439612A
Cited
US3612857A
Cited
US3736874A
Cited
US3712224A
Cited
US3964393A
Cited
DE2509539A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-10-22 | 1983-04-23 | 1983-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-10-22 | 1987-04-23 | 1987-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-10-22 | 1991-04-23 | 1991-10-23 | $7700.00 | Window Closed / Lapsed |