US3667388A
Expired / Lapsed
US
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Explosive initiating devices
Assignee: Individual
•
Filing: 1969-07-01
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Granted: 1972-06-06
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Expires: 1989-07-01
Abstract
Abstract Explosive initiating devices constructed to permit a volatile liquid to penetrate into the housing, thereby saturating the explosive to prevent inadvertent initiation of the devices. Subsequent evaporation of the liquid from the explosive, over a predetermined interval of time, arms the devices.
Inventors
- 👤 Robert W Heinemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:58
CPC Classifications
F; F42; F42C; F42C15/00; F42C15/28; F42C9/00; F42C9/08; Y; Y10; Y10S; Y10S102/00; Y10S102/705
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
72 words
In an explosive device, having chemical constituents, the improvement comprising in combination a non-reacting, nonaqueous, volatile liquid and a housing which is selectably porous to said liquid, but impervious to water, said liquid being able to migrate through said explosive device, the arrangement being such that said device is initially prevented from arming but, after a time delay, during which said liquid fully evaporates through said housing, said device is finally armed.
Claim 2
Dependent Claim
72 words
In an explosive device, having chemical constituents, the improvement comprising in combination a non-reacting, nonaqueous, volatile liquid and a housing which is selectably porous to said liquid, but impervious to water, said liquid being able to migrate through said explosive device, the arrangement being such that said device is initially prevented from arming but, after a time delay, during which said liquid fully evaporates through said housing, said device is finally armed.
Claim 3
Dependent Claim
73 words
An explosive device comprising, in combination, a. a porous housing, b. a plurality of sealed segments within said housing, each segment containing chemicals required to properly function said explosive device, and c. a low density absorbent material interposed between said segments said porous housing having the ability to absorb a non-reacting volatile liquid, the arrangement being such that said explosive device is dIsarmed until said absorbed volatile liquid evaporates over a predetermined time.
Claim 4
Dependent Claim
73 words
An explosive device comprising, in combination, a. a porous housing, b. a plurality of sealed segments within said housing, each segment containing chemicals required to properly function said explosive device, and c. a low density absorbent material interposed between said segments said porous housing having the ability to absorb a non-reacting volatile liquid, the arrangement being such that said explosive device is dIsarmed until said absorbed volatile liquid evaporates over a predetermined time.
References Cited (Backward Citations)
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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) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |