US3207075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Out-of-line rocket igniter
Assignee: Individual
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Filing: 1959-01-23
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Granted: 1965-09-21
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Expires: 1979-01-23
Abstract
No abstract record available.
Inventors
- 👤 Robert H Semenoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:17
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/95; F42; F42C; F42C15/00; F42C15/18; F42C15/188; F42C19/00; F42C19/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
257 words
AN IGNITER FOR THE PRIMER OF A ROCKET MOTOR COMPRISING; A CASING INCLUDING A BODY PORTION AFFIXED TO THE PRIMER AND HAVING A PLURALITY OF HOLES IN COMMUNICATION WITH THE IGNITER, A CYLINDER DISPOSED WITHIN SAID BODY PORTION AND ROTATABLE BETWEEN AN ARMED POSITION AND A SAFE POSITION, SAID CYLINDER HAVING A LONGITUDINAL GROOVE AND A PLURALITY OF TRANSVERSE BORES CONNECTED THERETO, A PLURALITY OF ELECTRICALLY DETONATABLE SQUIBS RESPECTIVELY DISPOSED WITH SAID BORES, SAID BORES BEING IN ALIGNMENT WITH THE HOLES IN SAID BODY PORTION ONLY WHEN SAID CYLINDER IS IN THE ARMED POSITION, A SOURCE OF ELECTRICAL POWER, ELECTRICAL INSULATING MEANS DISPOSED IN THE LONGITUDINAL GROOVE IN SAID CYLINDER, A PLURALITY OF PAIRS OF LEADS EXTENDING THROUGH SAID INSULATING MEANS AND EACH PAIR CONNECTED TO A RESPECTIVE SQUIB, A PLURALITY OF ELECTRICALLY CONDUCTIVE SHEETS LYING ON SAID INSULATING MEANS AND EACH ELECTRICALLY CONNECTED TO AT LEAST ONE OF SAID LEADS, SAID SHEETS BEING ELECTRICALLY INSULATED FROM EACH OTHER BY SAID INSULATING MEANS, A PLURALITY OF ELECTRICALLY CONDUCTIVE BALL SEATS EXTENDING THROUGH SAID INSULATING MEANS AND EACH ELECTRICALLY CONNECTED TO A RESPECTIVE SHEET, SPRING BIASED ELECTRICALLY CONDUCTIVE BALL DETENT MEANS IN SAID BODY, EACH OF SAID MEANS ELECTRICALLY INSULATED FROM THE OTHERS, AND EACH COOPERATING WITH A RESPECTIVE BALL SEAT WHEN SAID CYLINDER IS IN THE ARMED POSITION, MEANS CONNECTING SAID DETENTS TO SAID POWER SOURCE WHEN SAID CYLINDER IS IN THE ARMED POSITION, AND MEANS ELECTRICALLY GROUNDING SAID BALL SEATS WHEN SAID CYLINDER IS IN THE SAFE POSITION THEREBY TO PREVENT ACCIDENTIAL DETONATION OF SAID SQUIBS.
Claim 2
Dependent Claim
257 words
AN IGNITER FOR THE PRIMER OF A ROCKET MOTOR COMPRISING; A CASING INCLUDING A BODY PORTION AFFIXED TO THE PRIMER AND HAVING A PLURALITY OF HOLES IN COMMUNICATION WITH THE IGNITER, A CYLINDER DISPOSED WITHIN SAID BODY PORTION AND ROTATABLE BETWEEN AN ARMED POSITION AND A SAFE POSITION, SAID CYLINDER HAVING A LONGITUDINAL GROOVE AND A PLURALITY OF TRANSVERSE BORES CONNECTED THERETO, A PLURALITY OF ELECTRICALLY DETONATABLE SQUIBS RESPECTIVELY DISPOSED WITH SAID BORES, SAID BORES BEING IN ALIGNMENT WITH THE HOLES IN SAID BODY PORTION ONLY WHEN SAID CYLINDER IS IN THE ARMED POSITION, A SOURCE OF ELECTRICAL POWER, ELECTRICAL INSULATING MEANS DISPOSED IN THE LONGITUDINAL GROOVE IN SAID CYLINDER, A PLURALITY OF PAIRS OF LEADS EXTENDING THROUGH SAID INSULATING MEANS AND EACH PAIR CONNECTED TO A RESPECTIVE SQUIB, A PLURALITY OF ELECTRICALLY CONDUCTIVE SHEETS LYING ON SAID INSULATING MEANS AND EACH ELECTRICALLY CONNECTED TO AT LEAST ONE OF SAID LEADS, SAID SHEETS BEING ELECTRICALLY INSULATED FROM EACH OTHER BY SAID INSULATING MEANS, A PLURALITY OF ELECTRICALLY CONDUCTIVE BALL SEATS EXTENDING THROUGH SAID INSULATING MEANS AND EACH ELECTRICALLY CONNECTED TO A RESPECTIVE SHEET, SPRING BIASED ELECTRICALLY CONDUCTIVE BALL DETENT MEANS IN SAID BODY, EACH OF SAID MEANS ELECTRICALLY INSULATED FROM THE OTHERS, AND EACH COOPERATING WITH A RESPECTIVE BALL SEAT WHEN SAID CYLINDER IS IN THE ARMED POSITION, MEANS CONNECTING SAID DETENTS TO SAID POWER SOURCE WHEN SAID CYLINDER IS IN THE ARMED POSITION, AND MEANS ELECTRICALLY GROUNDING SAID BALL SEATS WHEN SAID CYLINDER IS IN THE SAFE POSITION THEREBY TO PREVENT ACCIDENTIAL DETONATION OF SAID SQUIBS.
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) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |