Patent US4184901A successfully refreshed from Google Patents.
US4184901A
Expired / Lapsed
US
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Simultaneous yellow smoke and yellow flame composition containing bismuth subnitrate
Assignee: United States Department of the Navy
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Filing: 1978-08-21
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Granted: 1980-01-22
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Expires: 1998-08-21
Abstract
Abstract A pyrotechnic composition which, when burned, produces yellow smoke and yellow flame. The composition is comprised of between 5 and 30 percent of a fuel which is either magnesium or silicon, between 65 and 85 percent of bismuth subnitrate and between 5 and 13 percent of an epoxy binder.
Inventors
- 👤 John E. Tanner, Jr.
- 👤 Henry A. Webster, III
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:59
CPC Classifications
C; C06; C06C; C06C15/00; C06B; C06B33/00; C06B33/04; C06D; C06D3/00; Y; Y10; Y10S; Y10S149/00; Y10S149/116; Y10S149/117
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
50 words
A pyrotechnic composition for simultaneously producing yellow smoke and yellow flame comprised, by weight, of between 5 and 30 percent of a fuel selected from a group consisting of magnesium and silicon, between 65 and 85 percent of bismuth subnitrate, and between 5 and 13 percent of an epoxy binder.
Claim 2
Dependent Claim
50 words
A pyrotechnic composition for simultaneously producing yellow smoke and yellow flame comprised, by weight, of between 5 and 30 percent of a fuel selected from a group consisting of magnesium and silicon, between 65 and 85 percent of bismuth subnitrate, and between 5 and 13 percent of an epoxy binder.
Claim 3
Dependent Claim
24 words
A pyrotechnic composition for simultaneously producing yellow smoke and yellow flame as set forth in claim 1 having about 5 percent of diatomaceous earth.
Claim 4
Dependent Claim
22 words
A pyrotechnic composition for simultaneously producing yellow smoke and yellow flame as set forth in claim 1 wherein said fuel is magnesium.
Claim 5
Dependent Claim
22 words
A pyrotechnic composition for simultaneously producing yellow smoke and yellow flame as set forth in claim 1 wherein said fuel is silicon.
Claim 6
Dependent Claim
30 words
A pyrotechnic composition for simultaneously producing yellow smoke and yellow flame as set forth in claim 1 having about 10 percent of magnesium and about 85 percent of bismuth subnitrate.
Claim 7
Dependent Claim
30 words
A pyrotechnic composition for simultaneously producing yellow smoke and yellow flame as set forth in claim 1 having about 10 percent of silicon and about 85 percent of bismuth subnitrate.
Claim 8
Dependent Claim
40 words
A pyrotechnic composition which, upon burning, produces yellow smoke and yellow flame comprised, by weight, of about 10 percent of magnesium, about 80 percent of bismuth subnitrate, about 5 percent of diatomaceous earth and about 5 percent of epoxy binder.
Claim 9
Dependent Claim
40 words
A pyrotechnic composition which, upon burning, produces yellow smoke and yellow flame comprised, by weight, of about 10 percent of magnesium, about 80 percent of bismuth subnitrate, about 5 percent of diatomaceous earth and about 5 percent of epoxy binder.
Claim 10
Dependent Claim
36 words
A pyrotechnic composition which, upon burning, produces yellow smoke and yellow flame as set forth in claim 7 wherein said epoxy binder is comprised of about 70 percent of resin and about 30 percent of hardener.
References Cited (Backward Citations)
US2995526A
Cited
US2968542A
Cited
US3046168A
Cited
US3411963A
Cited
US3769107A
Cited
US3488237A
Cited
US3497404A
Cited
US3733223A
Cited
US3908550A
Cited
US3960087A
Cited
US4032374A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-01-21 | 1983-07-23 | 1984-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-21 | 1987-07-23 | 1988-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-21 | 1991-07-23 | 1992-01-22 | $7700.00 | Window Closed / Lapsed |