US5142982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ignition device
Assignee: Bayern Chemie Gesellschaft fuer Flugchemische Antriebe mbH
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Filing: 1991-01-25
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Granted: 1992-09-01
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Expires: 2011-01-25
Abstract
Abstract For the purpose of reducing manufacturing costs and mounting defects, an electric ignition device has a one-piece basic body as a base for a primary and a secondary charge, so that the tightness is also increased with respect to moisture penetration.
Inventors
- 👤 Gisela Diepold
- 👤 Bernhard Vetter
- 👤 Karl Unterforsthuber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:55
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/10; F42B3/18; F42B3/12; F42B3/125; B; B60; B60R; B60R21/00; B60R21/02; B60R21/16; B60R21/26; B60R2021/26029
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
137 words
An ignition device comprising an electrically ignitable primary charge operatively arranged on a rotationally symmetrical basic body, a sealing cylindrical sleeve and a cap enclosing the primary charge, and a tamping sleeve operatively fastened to the device concentrically to the cap so as to define space filled with a secondary igniting substance, wherein the basic body is configured in one piece with a central bore for receiving electric connections of a primer capsule, and, at a primary-charge-side end of the bore, has a receiving arrangement for a base of the primer capsule and a projection for fastening the cap thereto, and the basic body further having an arrangement for fastening of the tamping sleeve and an integral surrounding ring on a circumference thereof configured to be tightly secured in a mating recess located completely within a housing.
Claim 2
Dependent Claim
137 words
An ignition device comprising an electrically ignitable primary charge operatively arranged on a rotationally symmetrical basic body, a sealing cylindrical sleeve and a cap enclosing the primary charge, and a tamping sleeve operatively fastened to the device concentrically to the cap so as to define space filled with a secondary igniting substance, wherein the basic body is configured in one piece with a central bore for receiving electric connections of a primer capsule, and, at a primary-charge-side end of the bore, has a receiving arrangement for a base of the primer capsule and a projection for fastening the cap thereto, and the basic body further having an arrangement for fastening of the tamping sleeve and an integral surrounding ring on a circumference thereof configured to be tightly secured in a mating recess located completely within a housing.
Claim 3
Dependent Claim
24 words
The ignition device according to claim 1, wherein a space for accommodating electric operating elements is arranged on a connection-side end of the bore.
Claim 4
Dependent Claim
19 words
The ignition device according to claim 2, wherein the electric operating elements contain electric connections to an ignition circuit.
Claim 5
Dependent Claim
16 words
The ignition device according to claim 2, wherein the electric operating elements contain a filter circuit.
Claim 6
Dependent Claim
17 words
The ignition device according to claim 2, wherein the electric operating elements have an overvoltage protection arrangement.
Claim 7
Dependent Claim
17 words
The ignition device according to claim 2, wherein the space is used for receiving a short-circuiting spring.
Claim 8
Dependent Claim
16 words
The ignition device according to claim 2, wherein the space is filled with a casting compound.
Claim 9
Dependent Claim
17 words
The ignition device according to claim 1, wherein the basic body consists of an electrically conductive material.
Claim 10
Dependent Claim
15 words
The ignition device according to claim 1, wherein the basic body consists of an insulator.
Claim 11
Dependent Claim
17 words
The ignition device according to claim 1, wherein the basic body and the cap are one piece.
Claim 12
Dependent Claim
24 words
The ignition device according to claim 8, wherein a space for accommodating electric operating elements is arranged on a connection-side end of the bore.
Claim 13
Dependent Claim
24 words
The ignition device according to claim 9, wherein a space for accommodating electric operating elements is arranged on a connection-side end of the bore.
Claim 14
Dependent Claim
24 words
The ignition device according to claim 10, wherein a space for accommodating electric operating elements is arranged on a connection-side end of the bore.
Claim 15
Dependent Claim
17 words
The ignition device according to claim 13, wherein the space is used for receiving a short-circuiting spring.
Claim 16
Dependent Claim
16 words
The ignition device according to claim 13, wherein the space is filled with a casting compound.
Claim 17
Dependent Claim
17 words
The ignition device according to claim 13, wherein the basic body consists of an electrically conductive material.
Claim 18
Dependent Claim
15 words
The ignition device according to claim 13, wherein the basic body consists of an insulator.
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US4621578A
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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) | 1995-09-01 | 1996-03-02 | 1996-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-09-01 | 2000-03-02 | 2000-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-09-01 | 2004-03-02 | 2004-09-01 | $7700.00 | Window Closed / Lapsed |