US3613758A
Expired / Lapsed
US
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Propagation primer
Assignee: Dynamit Nobel AG
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Filing: 1969-01-02
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Granted: 1971-10-19
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Expires: 1989-01-02
Abstract
Abstract A propagation primer containing a primer charge having a composition comprising, by weight, approximately: 40-60 PERCENT OF BARIUM NITRATE 10-20 PERCENT OF AN ALUMINUM-MAGNESIUM ALLOY 5-20 PERCENT OF LEAD DIOXIDE 6-10 PERCENT OF ZIRCONIUM HYDRIDE, AND 1-5 PERCENT OF BORON The composition is substantially insensitive to friction and shock. For propagation over larger distances, additional specific primer compositions may be employed.
Inventors
- 👤 Heinz Gawlick
- 👤 Gunther Marondel
- 👤 Hellmut Bendler
- 👤 Werner Siegelin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:23
CPC Classifications
C; C06; C06C; C06C5/00; C06C5/06; F; F42; F42C; F42C19/00; F42C19/08; F42C19/0803; F42C19/0815
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
97 words
A propagation primer composition substantially insensitive to friction and shock comprising a first primer charge having a composition comprising, by weight, approximately: 40-60 percent of barium nitrate 10- 20 percent of an aluminum-magnesium alloy 5- 20 percent of lead dioxide 6- 10 percent of zirconium hydride, and 1- 5 percent of boron contiguous to a second primer charge having a composition comprising, by weight, approximately: 40- 60 percent of barium nitrate 13- 25 percent of calcium silicide 10-20 percent of lead dioxide 8- 14 percent of an aluminum-magnesium alloy and, if desired, 1- 6 percent of boron.
Claim 2
Dependent Claim
89 words
A propagation primer composition substantially insensitive to friction and shock comprising a first primer charge having a composition comprising, by weight, approximately: 40-60 percent of barium nitrate 10- 20 percent of an aluminum-magnesium alloy 5- 20 percent of lead dioxide 6- 10 percent of zirconium hydride, and 1- 5 percent of boron contiguous to a second primer charge having a composition comprising, by weight, approximately: 25- 45 percent of lead tricinate 3- 10 percent of nitroguanidine 24- 45 percent of barium nitrate, and 8- 25 percent of calcium silicide.
Claim 3
Dependent Claim
92 words
A propagation primer composition substantially insensitive to friction and shock comprising a first primer charge having a composition comprising, by weight, approximately: 40- 60 percent of barium nitrate 10- 20 percent of an aluminum-magnesium alloy 5- 20 percent of lead dioxide 6- 10 percent of zirconium hydride, and 1- 5 percent of boron contiguous to a second primer charge having a composition comprising, by weight, approximately: 50 percent of barium nitrate 20 percent of calcium silicide 15 percent of lead dioxide 12 percent of an aluminum-magnesium alloy, and 3 percent of boron.
Claim 4
Dependent Claim
86 words
A propagation primer composition substantially insensitive to friction and shock comprising a first primer charge having a composition comprising, by weight, approximately: 40- 60 percent of barium nitrate 10- 20 percent of an aluminum-magnesium alloy 5- 20 percent of lead dioxide 6- 10 percent of zirconium hydride, and 1- 5 percent of boron contiguous to a second primer charge having a composition comprising, by weight, approximately: 30 percent of lead tricinate 5 percent of nitroguanidine 45 percent of barium nitrate, and 20 percent of calcium silicide.
Claim 5
Dependent Claim
47 words
A propagation primer composition substantially insensitive to friction and shock comprising, by weight, approximately: 40- 60 percent of barium nitrate 13- 25 percent of calcium silicide 10- 20 percent of lead dioxide 8- 14 percent of an aluminum-magnesium alloy and, if desired, 1- 6 percent of boron.
Claim 6
Dependent Claim
38 words
A propagation primer composition substantially insensitive to friction and shock comprising, by weight, approximately: 25- 45 percent of lead tricinate 3- 10 percent of nitroguanidine 24- 54 percent of barium nitrate, and 8- 25 percent of calcium silicide.
Claim 7
Dependent Claim
41 words
A propagation primer composition substantially insensitive to friction and shock consisting of, by weight, approximately: 50 percent of barium nitrate 20 percent of calcium silicide 15 percent of lead dioxide 12 percent of an aluminum-magnesium alloy, and 3 percent of boron.
Claim 8
Dependent Claim
35 words
A propagation primer composition substantially insensitive to friction and shock consisting of, by weight, approximately: 30 percent of lead tricinate 5 percent of nitroguanidine 45 percent of barium nitrate, and 20 percent of calcium silicide.
Claim 9
Dependent Claim
41 words
A propagation primer composition substantially insensitive to friction and shock consisting of, by weight, approximately: 60 percent of barium nitrate 15 percent of an aluminum-magnesium alloy 12 percent of lead dioxide 10 percent of zirconium hydride, and 3 percent of boron.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-18 | 1975-04-19 | 1975-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-18 | 1979-04-19 | 1979-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-18 | 1983-04-19 | 1983-10-19 | $7700.00 | Window Closed / Lapsed |