USH489H
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemical agent detecting projectile
Assignee: United States Department of the Army
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Filing: 1986-12-01
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Granted: 1988-07-05
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Expires: 2006-12-01
Abstract
Abstract A projectile capable of detecting toxic agents in the atmosphere at long ge, particularly halogen containing materials, containing therein a pyrotechnic composition comprising magnesium, calcium resinate and strontium nitrate. The projectile has an orifice therethrough along its longitudinal axis to enable the projectile to sample the atmosphere as it travels therethrough.
Inventors
- 👤 Bruce W. Brodman
- 👤 Thomas A. Doris, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:23
CPC Classifications
F; F42; F42B; F42B12/00; F42B12/02; F42B12/36; F42B12/38
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
108 words
A projectile for use in the detection of toxic chemicals while in flight through the atmosphere after expulsion from a weapon consisting essentially of: a projectile body having a forward lead-filled nose portion and a rearward charge portion, a pyrotechnic charge positioned in said rearward charge portion being ignitable upon expulsion from a weapon, an axial opening passing longitudinally through said entire projectile body, said forward lead-filled nose, and said pyrotechnic charge portion, whereby, said pyrotechnic charge upon ignition produces a flame which upon contact with the atmosphere containing a toxic chemical produces a color change after said atmosphere passes through said axial opening and contacts said flame.
Claim 2
Dependent Claim
108 words
A projectile for use in the detection of toxic chemicals while in flight through the atmosphere after expulsion from a weapon consisting essentially of: a projectile body having a forward lead-filled nose portion and a rearward charge portion, a pyrotechnic charge positioned in said rearward charge portion being ignitable upon expulsion from a weapon, an axial opening passing longitudinally through said entire projectile body, said forward lead-filled nose, and said pyrotechnic charge portion, whereby, said pyrotechnic charge upon ignition produces a flame which upon contact with the atmosphere containing a toxic chemical produces a color change after said atmosphere passes through said axial opening and contacts said flame.
Claim 3
Dependent Claim
17 words
The projectile of claim 1 wherein the pyrotechnic charge consists of magnesium, calcium resinate, and strontium nitrate.
References Cited (Backward Citations)
US2336143A
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US3726495A
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US3972291A
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US4130061A
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US4094711A
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US4381712A
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US4597810A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-07-05 | 1992-01-04 | 1992-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-05 | 1996-01-04 | 1996-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-05 | 2000-01-04 | 2000-07-05 | $7700.00 | Window Closed / Lapsed |