US3706277A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Destruct system improvement
Assignee: United States Department of the Navy
•
Filing: 1970-10-28
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Granted: 1972-12-19
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Expires: 1990-10-28
Abstract
Abstract A pyrotechnic cord assembly is provided with voids for safety in handling and storage. The voids are filled with bridging pyrotechnic material at the time of final assembly.
Inventors
- 👤 Robert C Willard
- 👤 Jimme M Craig
- 👤 Lloyd J Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:00
CPC Classifications
F; F42; F42D; F42D1/00; F42D1/04; C; C06; C06C; C06C5/00; C06C5/06; F42D1/043
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
130 words
In a pyrotechnic transfer train assembly, including a plurality of measured lengths of safety fuse, a plurality of lengths of propellant strand and connecting means between measured lengths of safety fuse and propellant strand, the improvement comprising: said connecting means comprising a plurality of tubular fittings receiving and securing the ends of at least one of said lengths of fuse and at least one of said lengths of strand and providing one additional tubular passageway; each said length of fuse and strand being secured in said fitting with the said ends in spaced relation in line with each other and said one additional tubular passageway whereby a space void of explosive material exists between said ends and whereby said space may be filled with explosive material through said additional passageway.
Claim 2
Dependent Claim
130 words
In a pyrotechnic transfer train assembly, including a plurality of measured lengths of safety fuse, a plurality of lengths of propellant strand and connecting means between measured lengths of safety fuse and propellant strand, the improvement comprising: said connecting means comprising a plurality of tubular fittings receiving and securing the ends of at least one of said lengths of fuse and at least one of said lengths of strand and providing one additional tubular passageway; each said length of fuse and strand being secured in said fitting with the said ends in spaced relation in line with each other and said one additional tubular passageway whereby a space void of explosive material exists between said ends and whereby said space may be filled with explosive material through said additional passageway.
Claim 3
Dependent Claim
53 words
The transfer train of claim 1 including a first tubular fitting having four tubular openings and connecting a first and a second length of safety fuse as well as a length of propellant strand; and a second tubular fitting connecting said second length of safety fuse with a second length of propellant strand.
References Cited (Backward Citations)
US3238876A
Cited
US3260202A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-12-19 | 1976-06-19 | 1976-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-19 | 1980-06-19 | 1980-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-19 | 1984-06-19 | 1984-12-19 | $7700.00 | Window Closed / Lapsed |