US3717097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Implosion colored marker
Assignee: United States Department of the Navy
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Filing: 1969-11-21
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Granted: 1973-02-20
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Expires: 1989-11-21
Abstract
Abstract Implosion type colored marker for use by military personnel, comprising non-carcinogenic dyes either surrounded by or incorporated within a rock salt composition, such that, upon ignition of an explosive exteriorly the dye, the latter will condense upon minute salt particles caused to be dispersed into the atmosphere to form a colored cloud.
Inventors
- 👤 A Wronka
- 👤 B Banker
- 👤 J Andrews
- 👤 B Kliem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:39
CPC Classifications
F; F42; F42B; F42B12/00; F42B12/02; F42B12/36; F42B12/40
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
90 words
In an implosive pyrotechnic device capable of traveling through the atmosphere to a designated target area, said device including a shell and a projectile having an armable fuze associated therewith, the combination therewith of an explosive having an axial cavity therethrough disposed centrally longitudinally within said shell and means contained within said cavity for covering an area with a colored smoke cloud upon bursting of said shell comprising: A. A compressed rock salt cylinder having a bore therethrough, and B. Organic dyestuff disposed within said bore of said salt cylinder.
Claim 2
Dependent Claim
90 words
In an implosive pyrotechnic device capable of traveling through the atmosphere to a designated target area, said device including a shell and a projectile having an armable fuze associated therewith, the combination therewith of an explosive having an axial cavity therethrough disposed centrally longitudinally within said shell and means contained within said cavity for covering an area with a colored smoke cloud upon bursting of said shell comprising: A. A compressed rock salt cylinder having a bore therethrough, and B. Organic dyestuff disposed within said bore of said salt cylinder.
Claim 3
Dependent Claim
69 words
The device as described in claim 1 wherein said means comprises a. a compressed rock salt cylinder having a bore therethrough, said cylinder consisting essentially of 96.5 to 98.5 weight per cent rock salt and 1.5 to 3.5 weight per cent stearic acid, said rock salt having a particle size ranging between about 30 to 60 microns, and b. dye pelLets disposed within said bore of said salt cylinder.
Claim 4
Dependent Claim
19 words
The device as described in claim 1 wherein said means comprises a homogeneous mass of rock salt and dye.
Claim 5
Dependent Claim
58 words
The device as described in claim 1, further characterized by a booster disposed between said fuze and dye pellets, said booster being made of a material selected from the group consisting of tetryl and cyclonite, a salt wafer disposed between said booster and said dye pellets, said salt wafer being identical in composition to said rock salt cylinder.
Claim 6
Dependent Claim
88 words
The device as described in claim 3, further characterized by a booster disposed between said fuze and said homogeneous mass of rock salt and dye, said booster being made of a material selected from the group consisting of tetryl and sefronite, a salt wafer disposed between said booster and said homogeneous mass, said salt wafer consisting of 96.5 to 98.5 weight per cent rock salt and 1.5 to 3.5 weight per cent stearic acid, said rock salt having a particle size ranging between about 30 to 60 microns.
Claim 7
Dependent Claim
41 words
The device as described in claim 4, wherein said dye pellets comprise about 94 to 96 weight per cent 1-methylaminoanthraquinone, and about 4 to 6 weight percent stearic acid, said dye pellets producing a red smoke upon ignition of said explosive.
Claim 8
Dependent Claim
53 words
The device as described in claim 4 wherein said dye pellets comprise about 73 to 77 weight percent of a vat yellow 4 dye, about 18 to 22 weight percent of benzanthrone, and about 4 to 6 weight percent stearic acid, said dye pellets producing a yellow smoke upon ignition of said explosive.
Claim 9
Dependent Claim
39 words
The device as described in claim 4, wherein said dye pellets comprise about 94 to 96 weight per cent 1,4-dimethylaminoanthraquinone, and 4 to 6 weight percent stearic acid, said dipellets producing a blue smoke upon ignition of said explosive.
Claim 10
Dependent Claim
54 words
The device as described in claim 4 wherein said dye pellets comprise about 41 to 43 weight percent 1,4-dimethylaminoanthraquinone, 39 to 41 weight percent vat yellow 4 dye, 12 to 14 weight percent benzanthrone, and 4 to 6 weight percent stearic acid, said dye pellets producing a green smoke upon igntion of said explosive.
Claim 11
Dependent Claim
44 words
The device as described in claim 5 wherein said mass comprises about 74 to 76 weight percent 1-methylaminoanthraquinone, 19 to 21 weight per cent rock salt, 4 to 6 weight percent stearic acid, said mass producing a red smoke upon ignition of said explosive.
Claim 12
Dependent Claim
56 words
The device as described in claim 5 wherein said mass comprises about 55 to 57 weight percent of vat yellow 4 dye, about 18 to 20 weight percent benzanthrone, about 19 to 21 weight percent rock salt, and 4 to 6 weight percent stearic acid, said mass producing a yellow smoke upon ignition of said explosive.
Claim 13
Dependent Claim
45 words
The device as described in claim 5 wherein said mass comprises about 74 to 76 weight percent 1,4-dimethylaminoanthraquinone, about 19 to 21 weight percent rock salt, and 4 to 6 weight percent stearic acid, said mass producing a blue smoke upon ignition of said explosive.
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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) | 1976-02-20 | 1976-08-21 | 1977-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-20 | 1980-08-21 | 1981-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-20 | 1984-08-21 | 1985-02-20 | $7700.00 | Window Closed / Lapsed |