US4083307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-tight firing cap arrangement and method of making the same
Assignee: HAGENUK AND CO GmbH
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Filing: 1977-03-07
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Granted: 1978-04-11
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Expires: 1997-03-07
Abstract
Abstract A firing cap assembly has an interior percussion charge for producing a fire jet along a path in a predetermined direction which extends generally from one side of the assembly towards the other side thereof. The assembly is inserted into a casing having a base wall which extends across the path of the fire jet, and side walls which extend generally along the predetermined direction and which have bendable wall portions at said one side of the assembly. The casing and the assembly mounted therein are both inserted into a cavity of a firing cap carrier having bendable flange portions at said one side of the assembly. The flange portions are bent in direction generally transversely of the predetermined direction to a position in which the wall portions are located intermediate the flange portions and said one side of the assembly so as to form a corner region with said one side of the assembly. Sealing material is thereupon introduced into this corner region so as to prevent access of moisture to the percussion charge located at the interior of the assembly. The water-tight firing cap arrangement is thereby maintained in moisture-proof condition.
Inventors
- 👤 Paul Beermann
- 👤 Wilhelm Grosse-Benne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:49
CPC Classifications
F; F42; F42C; F42C19/00; F42C19/08; F42C19/0807; F42C19/10
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
259 words
A method of making a water-tight firing cap arrangement, comprising the steps of providing a firing cap assembly having an interior percussion charge for producing a fire jet along a path in a predetermined direction extending generally from one side of said assembly towards the other side thereof an anvil member having two spaced ends one of which faces towards said percussion charge, and a shell member surrounding said percussion charge and said anvil member and having a closed end closing said assembly from said one side thereof; inserting said assembly into a casing having a closed base wall which extends across said path of said fire jet and adjacent to the other end of said anvil member so as to close said assembly from said other end thereof, and side walls which extend generally along said predetermined direction and which have bendable wall portions at said one side of said assembly; inserting said assembly and said casing into a cavity of a firing cap carrier having bendable flange portions at said one side of said assembly; bending said flange portions in direction generally transversely of said predetermined direction to a position in which said wall portions are located intermediate said flange portions and said closed end of said shell member of said assembly so as to form a corner region with the latter; and introducing sealing material into said corner region so as to prevent access of moisture to said percussion charge at the interior of said assembly, whereby said firing cap arrangement is maintained in moisture-proof condition.
Claim 2
Independent Claim
259 words
A method of making a water-tight firing cap arrangement, comprising the steps of providing a firing cap assembly having an interior percussion charge for producing a fire jet along a path in a predetermined direction extending generally from one side of said assembly towards the other side thereof an anvil member having two spaced ends one of which faces towards said percussion charge, and a shell member surrounding said percussion charge and said anvil member and having a closed end closing said assembly from said one side thereof; inserting said assembly into a casing having a closed base wall which extends across said path of said fire jet and adjacent to the other end of said anvil member so as to close said assembly from said other end thereof, and side walls which extend generally along said predetermined direction and which have bendable wall portions at said one side of said assembly; inserting said assembly and said casing into a cavity of a firing cap carrier having bendable flange portions at said one side of said assembly; bending said flange portions in direction generally transversely of said predetermined direction to a position in which said wall portions are located intermediate said flange portions and said closed end of said shell member of said assembly so as to form a corner region with the latter; and introducing sealing material into said corner region so as to prevent access of moisture to said percussion charge at the interior of said assembly, whereby said firing cap arrangement is maintained in moisture-proof condition.
Claim 3
Dependent Claim
111 words
A method as defined in claim 1, wherein said step of providing said assembly includes forming a shell member into a generally U-shape with an open end and said closed end, positioning a cover member intermediate said open and closed ends of said shell member so as to subdivide the interior of the latter into regions which are bounded by said open end and said closed end, respectively, positioning said anvil member at one of said regions at said open end of said shell member, and filling the other of said regions with said percussion charge which detonates upon impact with said anvile member so as to produce said fire jet.
Claim 4
Dependent Claim
31 words
A method as defined in claim 1, wherein said step of inserting said assembly into said casing includes mounting said assembly into frictional engagement with said side walls of said casing.
Claim 5
Dependent Claim
46 words
A method as defined in claim 1, wherein said step of bending said flange portions includes the step of simultaneously bending said wall portions; and wherein said step of introducing said sealing material includes contacting said flange portions and said wall portions with said sealing material.
Claim 6
Dependent Claim
34 words
A method as defined in claim 1; and further comprising the step of bending said wall portions in direction generally transversely of said predetermined direction prior to the step of bending said flange portions.
Claim 7
Dependent Claim
56 words
A method as defined in claim 5; and further comprising the step of positioning a foil intermediate said one side of said assembly and said wall portions prior to said step of bending the latter; and wherein said step of introducing said sealing material includes contacting said foil and said wall portions with said sealing material.
Claim 8
Dependent Claim
227 words
A water-tight firing cap arrangement, comprising a firing cap assembly having opposite sides which bound an interior percussion charge for producing a fire jet which extends generally along a path in direction from one of said sides of said assembly towards the other of said sides thereof, an anvil having two spaced ends one of which faces towards said percussion charge, and a shell member surrounding said percussion charge and said anvil member and having a closed end closing said assembly from said one side thereof; a casing partially surrounding said assembly, said casing having a closed base wall which extends transversely across said path of said fire jet, and adjacent to the other end of said anvil member so as to close said assembly from said other side thereof, and side walls which extend generally along said direction and which have transversely-extending wall portions at said one side of said assembly; a firing cap carrier partially surrounding said casing and having transversely-extending flange portions at said one side of said assembly, said flange portions overlying said wall portions and forming with said closed end of said shell member of said assembly a corner region; and a sealing plug in said corner region for preventing access of moisture to said percussion charge at the interior of said assembly, whereby said firing-cap arrangement is maintained in moisture-proof condition.
Claim 9
Dependent Claim
227 words
A water-tight firing cap arrangement, comprising a firing cap assembly having opposite sides which bound an interior percussion charge for producing a fire jet which extends generally along a path in direction from one of said sides of said assembly towards the other of said sides thereof, an anvil having two spaced ends one of which faces towards said percussion charge, and a shell member surrounding said percussion charge and said anvil member and having a closed end closing said assembly from said one side thereof; a casing partially surrounding said assembly, said casing having a closed base wall which extends transversely across said path of said fire jet, and adjacent to the other end of said anvil member so as to close said assembly from said other side thereof, and side walls which extend generally along said direction and which have transversely-extending wall portions at said one side of said assembly; a firing cap carrier partially surrounding said casing and having transversely-extending flange portions at said one side of said assembly, said flange portions overlying said wall portions and forming with said closed end of said shell member of said assembly a corner region; and a sealing plug in said corner region for preventing access of moisture to said percussion charge at the interior of said assembly, whereby said firing-cap arrangement is maintained in moisture-proof condition.
Claim 10
Dependent Claim
73 words
An arrangement as defined in claim 7 wherein said shell-member is generally U-shaped and also has an open end; said firing-cap assembly further comprising a cover member located intermediate said ends of said assembly and bounding with said closed end of said shell member a first region in which said percussion charge is located and also bounding a second region with said open end, said anvil member being located at said second region.
Claim 11
Dependent Claim
32 words
An arrangement as defined in claim 7, wherein said shell member has a predetermined thickness, and wherein said casing has a thickness relatively smaller than said predetermined thickness of said shell member.
Claim 12
Dependent Claim
15 words
An arrangement as defined in claim 7, wherein said plug is of moisture-impermeable, heat-resistant material.
Claim 13
Dependent Claim
26 words
An arrangement as defined in claim 7; and further comprising a foil intermediate said one side of said assembly and said wall portions of said casing.
References Cited (Backward Citations)
FR512285A
Cited
US2423837A
Cited
US2462135A
Cited
US2868128A
Cited
US2708878A
Cited
US2926607A
Cited
GB875241A
Cited
US3306203A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-04-10 | 1981-10-10 | 1982-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-10 | 1985-10-10 | 1986-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-10 | 1989-10-10 | 1990-04-11 | $7700.00 | Window Closed / Lapsed |