US3308758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ignition device
Assignee: Dynamit Nobel AG
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Filing: 1965-07-02
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Granted: 1967-03-14
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Expires: 1985-07-02
Abstract
No abstract record available.
Inventors
- 👤 Stadler Hans
- 👤 Gawlick Heinz
- 👤 Bendler Helmut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:43
CPC Classifications
F; F42; F42C; F42C19/00; F42C19/08; F42C19/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
AN IGNITION ELEMENT FOR AN ELECTRICAL IGNITION DEVICE, COMPRISING: MECHANICALLY RIGID CASING MEANS OF ELECTRICALLY CONDUCTIVE MATERIAL FORMING A FIRST POLE PIECE, SAID MECHANICALLY RIGID CASING MEANS BEING PROVIDED WITH EXHAUST APERTURE MEANS IN THE EXTENSION OF THE IGNITION COMPOSITION AND BEING ADAPTED TO BE CONNECTED WITH GROUND, AND A PRIMER ASSEMBLY ARRANGED AT LEAST IN PART IN SAID CASING MEANS INCLUDING ELECTRICALLY CONDUCTIVE MEANS FORMING A SECOND POLE PIECE, INSULATION MEANS BETWEEN SAID FIRST AND SECOND POLE PIECES, IGNITION COMPOSITION MEANS ELECTRICALLY CONNECTED IN SERIES BETWEEN SAID SECOND POLE PIECE AND SAID CASING MEANS, MECHANICALLY RIGID CONTACT MEANS OF ELECTRICALLY CONDUCTIVE MATERIAL IN ELECTRICAL CONNECTION WITH EACH OF SAID FIRST AND SECOND POLE PIECES, EACH OF SAID FIRST AND SECOND POLE PIECES BEING IN SERIES CONNECTION WITH THEIR RESPECTIVE CONTACT MEANS AND SAID IGNITION COMPOSITION MEANS, AND MEANS FOR NORMALLY HOLDING AT LEAST ONE OF SAID CONTACT MEANS IN RESILIENTLY YEILDING CONTACT PRESSURE CONNECTION WITH ITS CORRESPONDING POLE PIECE INCLUDING CAP MEANS OF THERMOPLASTIC MATERIAL OPERATIVELY CONNECTED WITH SAID CASING MEANS AND MECHANICALLY STRESSED IN THE ASSEMBLED UNFIRED NORMAL CONDITION.
Claim 2
Dependent Claim
181 words
AN IGNITION ELEMENT FOR AN ELECTRICAL IGNITION DEVICE, COMPRISING: MECHANICALLY RIGID CASING MEANS OF ELECTRICALLY CONDUCTIVE MATERIAL FORMING A FIRST POLE PIECE, SAID MECHANICALLY RIGID CASING MEANS BEING PROVIDED WITH EXHAUST APERTURE MEANS IN THE EXTENSION OF THE IGNITION COMPOSITION AND BEING ADAPTED TO BE CONNECTED WITH GROUND, AND A PRIMER ASSEMBLY ARRANGED AT LEAST IN PART IN SAID CASING MEANS INCLUDING ELECTRICALLY CONDUCTIVE MEANS FORMING A SECOND POLE PIECE, INSULATION MEANS BETWEEN SAID FIRST AND SECOND POLE PIECES, IGNITION COMPOSITION MEANS ELECTRICALLY CONNECTED IN SERIES BETWEEN SAID SECOND POLE PIECE AND SAID CASING MEANS, MECHANICALLY RIGID CONTACT MEANS OF ELECTRICALLY CONDUCTIVE MATERIAL IN ELECTRICAL CONNECTION WITH EACH OF SAID FIRST AND SECOND POLE PIECES, EACH OF SAID FIRST AND SECOND POLE PIECES BEING IN SERIES CONNECTION WITH THEIR RESPECTIVE CONTACT MEANS AND SAID IGNITION COMPOSITION MEANS, AND MEANS FOR NORMALLY HOLDING AT LEAST ONE OF SAID CONTACT MEANS IN RESILIENTLY YEILDING CONTACT PRESSURE CONNECTION WITH ITS CORRESPONDING POLE PIECE INCLUDING CAP MEANS OF THERMOPLASTIC MATERIAL OPERATIVELY CONNECTED WITH SAID CASING MEANS AND MECHANICALLY STRESSED IN THE ASSEMBLED UNFIRED NORMAL CONDITION.
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) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |