Patent US4038924A successfully refreshed from Google Patents.
US4038924A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Igniter for fuses and the like
Assignee: HAGENUK AND CO GmbH
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Filing: 1975-03-17
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Granted: 1977-08-02
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Expires: 1995-03-17
Abstract
Abstract A firing cap is located in a housing and produces, when detonated, a fuse-igniting fire jet. A firing pin mechanism is provided for impacting and detonating the firing cap. An arrangement is provided which extends across the path of the fire jet and which includes passages through which the jet is compelled to pass to thereby control the behavior of the jet.
Inventors
- 👤 Paul Beermann
- 👤 Wilhelm Grosse-Benne
- 👤 Hans Guntermann
- 👤 Johann-Hugo Wirtz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:56
CPC Classifications
F; F42; F42C; F42C7/00; F42C7/12; F42C19/00; F42C19/08; F42C19/10
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
159 words
A water-tight igniter for fuses and the like, comprising a housing; a firing cap in said housing for producing, when detonated, a fuse-igniting fire jet; a firing pin mechanism at one side of said firing cap for impacting and detonating the latter; a fuse at the other side of said firing cap; deflecting means extending across the path of said fire jet and including passage means through which the jet is compelled to pass, for controlling the fire jet and for directing the latter towards said fuse so as to ignite the same; at least one gas-venting opening laterally of said firing cap; and means for mounting said fuse on said housing in water-tight condition, including a plug surrounding said fuse, a sleeve surrounding said plug and mountable on said housing, and sealing means intermediate said plug and said sleeve for preventing access of water into the interior of said housing, so as to maintain said firing cap moisture-proof.
Claim 2
Dependent Claim
159 words
A water-tight igniter for fuses and the like, comprising a housing; a firing cap in said housing for producing, when detonated, a fuse-igniting fire jet; a firing pin mechanism at one side of said firing cap for impacting and detonating the latter; a fuse at the other side of said firing cap; deflecting means extending across the path of said fire jet and including passage means through which the jet is compelled to pass, for controlling the fire jet and for directing the latter towards said fuse so as to ignite the same; at least one gas-venting opening laterally of said firing cap; and means for mounting said fuse on said housing in water-tight condition, including a plug surrounding said fuse, a sleeve surrounding said plug and mountable on said housing, and sealing means intermediate said plug and said sleeve for preventing access of water into the interior of said housing, so as to maintain said firing cap moisture-proof.
Claim 3
Dependent Claim
18 words
Igniter as defined in claim 1, wherein said passage means is formed by a plurality of narrow bores.
Claim 4
Dependent Claim
18 words
Igniter as defined in claim 1, wherein said passage means is formed by at least one narrow bore.
Claim 5
Dependent Claim
25 words
Igniter as defined in claim 1, wherein said deflecting means comprises a plate provided with a plurality of narrow holes which form said passage means.
Claim 6
Dependent Claim
46 words
Igniter as defined in claim 1, wherein said deflecting means comprises two axially spaced plates each provided with holes and a spacer ring between said plates, said holes constituting said passage means and having relative positions selected to impose upon said fire jet a tortuous path.
Claim 7
Dependent Claim
68 words
Igniter as defined in claim 1; and further comprising a clamping element mounted in said sleeve, and wherein said sealing means comprises an O-ring having one side facing said housing and its other side facing said clamping element; and also comprising means for moving said sleeve together with said clamping element relative to said housing so as to clamp said O-ring between said housing and said clamping element.
Claim 8
Dependent Claim
15 words
Igniter as defined in claim 1, wherein said sleeve is threadedly connected with said housing.
Claim 9
Dependent Claim
20 words
Igniter as defined in claim 1, wherein said deflecting means comprises an element of sheet-material arranged in said passage means.
Claim 10
Dependent Claim
13 words
Igniter as defined in claim 8, wherein said element has a cup-shaped configuration.
Claim 11
Dependent Claim
15 words
Igniter as defined in claim 8, wherein said element is of synthetic plastic foil material.
Claim 12
Dependent Claim
13 words
Igniter as defined in claim 8, wherein said element is of metallic material.
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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) | 1980-08-01 | 1981-01-31 | 1981-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-01 | 1985-01-31 | 1985-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-01 | 1989-01-31 | 1989-08-02 | $7700.00 | Window Closed / Lapsed |