US3994201A
Expired / Lapsed
US
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Separating element
Assignee: Dynamit Nobel AG
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Filing: 1974-08-01
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Granted: 1976-11-30
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Expires: 1994-08-01
Abstract
Abstract A separating element comprises a body member for securing at least two parts together. The body member has an electrically ignitable separating charge disposed in tamped form within a recess therein, means operatively associated with the separating charge, which when a predetermined temperature has been reached, renders the explosive effect of the separating charge ineffective and ignition means for igniting the separating charge within said recess when separation of the parts is required.
Inventors
- 👤 Hellmut Bendler
- 👤 Heinz Gawlick
- 👤 Werner Siegelin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:28
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/006; F42D; F42D5/00; F42D5/04
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
81 words
A separating element which comprises a body having a preselected shape for securing at least two parts together, said body having a separating explosive charge disposed in tamped form within a recess therein, tamp means within said recess operatively associated with said separating charge which, when a predetermined temperature has been reached, becomes ineffective, and electrical ignition means for igniting said separating charge within said recess when separation of said parts is required at a functional temperature below said predetermined temperature.
Claim 2
Dependent Claim
81 words
A separating element which comprises a body having a preselected shape for securing at least two parts together, said body having a separating explosive charge disposed in tamped form within a recess therein, tamp means within said recess operatively associated with said separating charge which, when a predetermined temperature has been reached, becomes ineffective, and electrical ignition means for igniting said separating charge within said recess when separation of said parts is required at a functional temperature below said predetermined temperature.
Claim 3
Dependent Claim
52 words
The separating element according to claim 1, wherein the separating element has a bore sealed with a material melting when the predetermined temperature has been reached, which bore, after the melting of the material establishes a communication between the separating charge and the atmosphere thereby eliminating the tamping of the separating charge.
Claim 4
Dependent Claim
14 words
The separating element according to claim 2, wherein said material is a metal alloy.
Claim 5
Dependent Claim
23 words
The separating element according to claim 2, wherein the bore is widened in its cross-section at an end adjacent to the separating charge.
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) | 1979-11-30 | 1980-05-31 | 1980-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-30 | 1984-05-31 | 1984-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-30 | 1988-05-31 | 1988-11-30 | $7700.00 | Window Closed / Lapsed |