Patent US3703121A successfully refreshed from Google Patents.
US3703121A
Expired / Lapsed
US
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Control element to be ignited electrically for pin entrance
Assignee: Dynamit Nobel AG
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Filing: 1970-11-05
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Granted: 1972-11-21
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Expires: 1990-11-05
Abstract
Abstract A control element to be electrically ignited for pin retraction, wherein the pin is guided in a housing in which the electrical primer element is accommodated and is optionally provided with a delay device. In the starting position, a compression spring presses the pin with an integrally attached piston against the primer element. The piston rests on a supporting element of the primer element. After ignition of the primer element, the compression spring presses the pin with a residual force against the remaining portion of the supporting element which has been penetrated.
Inventors
- 👤 Heinz Gawlick
- 👤 Hellmut Bendler
- 👤 Gunter Hubsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:19
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/006
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
183 words
Control element adapted to be ignited electrically, comprising a housing, pin means having a piston operatively guided in the housing, electrical detonator means arranged in the housing, said electrical detonator means include a capsule having fuze tube means, said fuze tube means being provided with recess means at the end thereof directed toward the outside, means for pressing the pin means against the detonator means to retract the pin; and supporting means in the form of a disk being mounted in a flush manner in said recess means such that the pin means rests against said disk, said disk having a curvature adapted to be pressed flat to form an enlarged outer disk diameter for peripheral flush engagement with said recess means to effect a seal between said disk and said recess means of said fuze tube means, wherein the pressing means presses the pin means against the detonator means in the starting position and, after ignition of the detonator means and penetration of the supporting means, presses the pin means with a residual force against the remaining portion of the supporting means.
Claim 2
Dependent Claim
183 words
Control element adapted to be ignited electrically, comprising a housing, pin means having a piston operatively guided in the housing, electrical detonator means arranged in the housing, said electrical detonator means include a capsule having fuze tube means, said fuze tube means being provided with recess means at the end thereof directed toward the outside, means for pressing the pin means against the detonator means to retract the pin; and supporting means in the form of a disk being mounted in a flush manner in said recess means such that the pin means rests against said disk, said disk having a curvature adapted to be pressed flat to form an enlarged outer disk diameter for peripheral flush engagement with said recess means to effect a seal between said disk and said recess means of said fuze tube means, wherein the pressing means presses the pin means against the detonator means in the starting position and, after ignition of the detonator means and penetration of the supporting means, presses the pin means with a residual force against the remaining portion of the supporting means.
Claim 3
Dependent Claim
183 words
Control element adapted to be ignited electrically, comprising a housing, pin means having a piston operatively guided in the housing, electrical detonator means arranged in the housing, said electrical detonator means include a capsule having fuze tube means, said fuze tube means being provided with recess means at the end thereof directed toward the outside, means for pressing the pin means against the detonator means to retract the pin; and supporting means in the form of a disk being mounted in a flush manner in said recess means such that the pin means rests against said disk, said disk having a curvature adapted to be pressed flat to form an enlarged outer disk diameter for peripheral flush engagement with said recess means to effect a seal between said disk and said recess means of said fuze tube means, wherein the pressing means presses the pin means against the detonator means in the starting position and, after ignition of the detonator means and penetration of the supporting means, presses the pin means with a residual force against the remaining portion of the supporting means.
Claim 4
Dependent Claim
183 words
Control element adapted to be ignited electrically, comprising a housing, pin means having a piston operatively guided in the housing, electrical detonator means arranged in the housing, said electrical detonator means include a capsule having fuze tube means, said fuze tube means being provided with recess means at the end thereof directed toward the outside, means for pressing the pin means against the detonator means to retract the pin; and supporting means in the form of a disk being mounted in a flush manner in said recess means such that the pin means rests against said disk, said disk having a curvature adapted to be pressed flat to form an enlarged outer disk diameter for peripheral flush engagement with said recess means to effect a seal between said disk and said recess means of said fuze tube means, wherein the pressing means presses the pin means against the detonator means in the starting position and, after ignition of the detonator means and penetration of the supporting means, presses the pin means with a residual force against the remaining portion of the supporting means.
Claim 5
Dependent Claim
14 words
Control element according to claim 1, wherein the pressing means comprises a compression spring.
Claim 6
Dependent Claim
16 words
Control means according to claim 2, wherein a delay charge is provided in the detonator means.
Claim 7
Dependent Claim
18 words
Control element according to claim 1, wherein said fuze tube means includes a pressure igniter charge disposed therein.
Claim 8
Dependent Claim
14 words
Control element according to claim 4, wherein the pressing means comprises a compression spring.
Claim 9
Dependent Claim
16 words
COntrol element according to claim 5, wherein a delay charge is provided in the detonator means.
Claim 10
Dependent Claim
44 words
Control element according to claim 6, wherein said fuze tube means includes a first fuze tube with a primer charge arranged in the capsule, and a second fuze tube containing the pressure igniter charge and a delay charge arranged in said first fuze tube.
Claim 11
Dependent Claim
33 words
Control element according to claim 7, wherein the fuze tubes are provided with recess means at the end thereof directed toward the outside, and the supporting means being mounted in the recess means.
Claim 12
Dependent Claim
17 words
Control element according to claim 2, wherein fuze tube means includes a pressure igniter charge disposed therein.
Claim 13
Dependent Claim
44 words
Control element according to claim 9 wherein said fuze tube means includes a first fuze tube with a primer charge arranged in the capsule, and a second fuze tube containing the pressure igniter charge and a delay charge arranged in said first fuze tube.
Claim 14
Dependent Claim
17 words
Control element according to claim 1, wherein the disk comprises a material having low elongation at rupture.
Claim 15
Dependent Claim
16 words
Control element according to claim 11, wherein a delay charge is provided in the detonator means.
Claim 16
Dependent Claim
17 words
Control element according to claim 12, wherein fuze tube means includes a pressure igniter charge disposed therein.
Claim 17
Dependent Claim
44 words
Control element according to claim 13, wherein said fuze tube means includes a first fuze tube with a primer charge arranged in the capsule, and a second fuze tube containing the pressure igniter charge and a delay charge arranged in said first fuze tube.
Claim 18
Dependent Claim
19 words
Control element according to claim 11, wherein the material is from the group consisting of copper and copper alloy.
Claim 19
Dependent Claim
35 words
Control element according to claim 1, wherein the remaining portion of the supporting means is an annular section which is punched out of the disk by gas pressure with the piston serving as an abutment.
Claim 20
Dependent Claim
20 words
Control element according to claim 2, wherein the compression spring is mounted on a guide portion of the pin means.
Claim 21
Dependent Claim
24 words
Control element according to claim 17, wherein the compression spring is tensioned between the housing bottom and a receiving disk following the guide portion.
Claim 22
Dependent Claim
17 words
Control element according to claim 18, wherein the piston tapers in a direction toward the receiving disk.
Claim 23
Dependent Claim
23 words
Control element according to claim 1, wherein a threaded cap means is provided as a centering device and abutment for the detonator means.
Claim 24
Dependent Claim
21 words
Control element according to claim 1, wherein said supporting disk has a configuration of a truncated cone in the flattened condition.
References Cited (Backward Citations)
US3062143A
Cited
US3541920A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-11-21 | 1976-05-22 | 1976-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-21 | 1980-05-22 | 1980-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-21 | 1984-05-22 | 1984-11-21 | $7700.00 | Window Closed / Lapsed |