US3249047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric squib device with insulated resistance bridge wire
Assignee: Olin Corp
•
Filing: 1964-09-11
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Granted: 1966-05-03
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Expires: 1984-09-11
Abstract
No abstract record available.
Inventors
- 👤 Mason E Gill
- 👤 Earl D Langley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:48
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/10; F42B3/12; F42B3/124
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
IN AN ELECTRIC SQUIB DEVICE INCLUDING A PAIR OF SPACED LEAD WITHIN JOINED AT THEIR ENDS BY A RESISTANT BRIDGE WIRE, SAID SQUIB DEVICE BEING SUSCEPTIBLE OF ELECTRICAL FIRING WITHIN 2 MILLISECONDS AFTER THE APPLICATION OF CURRENT TO SAID BRIDGE WIRE RANGING FROM FIVE TENTHS (.5) TO SEVENTY-FIVE HUNDREDTHS (.75) AMERE AT A VOLTAGE RANGING FROM SIXTYFIVE HUNDREDTHS (.65) TO NINE HUNDRED SEVENTY-FIVE THOUSANDTHS (.975) VOLT, SAID SQUIB DEVICE DEVELOPING A RESISTANCE GREATER THAN 20,000 OHMS WITHIN 20 MILLISECONDS AFTER FIRING, THE IMPROVEMNT COMPRISING AN INSULATING COATING COVERING THE BRIDGE WIRE AND A BEAD OF HEAT SENSITIVE IGNITION MATERIAL DEPOSITED ON SAID INSULATION FREE OF PHYSICAL CONTACT WITH THE BRIDGE WIRE.
Claim 2
Dependent Claim
111 words
IN AN ELECTRIC SQUIB DEVICE INCLUDING A PAIR OF SPACED LEAD WITHIN JOINED AT THEIR ENDS BY A RESISTANT BRIDGE WIRE, SAID SQUIB DEVICE BEING SUSCEPTIBLE OF ELECTRICAL FIRING WITHIN 2 MILLISECONDS AFTER THE APPLICATION OF CURRENT TO SAID BRIDGE WIRE RANGING FROM FIVE TENTHS (.5) TO SEVENTY-FIVE HUNDREDTHS (.75) AMERE AT A VOLTAGE RANGING FROM SIXTYFIVE HUNDREDTHS (.65) TO NINE HUNDRED SEVENTY-FIVE THOUSANDTHS (.975) VOLT, SAID SQUIB DEVICE DEVELOPING A RESISTANCE GREATER THAN 20,000 OHMS WITHIN 20 MILLISECONDS AFTER FIRING, THE IMPROVEMNT COMPRISING AN INSULATING COATING COVERING THE BRIDGE WIRE AND A BEAD OF HEAT SENSITIVE IGNITION MATERIAL DEPOSITED ON SAID INSULATION FREE OF PHYSICAL CONTACT WITH THE BRIDGE WIRE.
References Cited (Backward Citations)
GB534532A
Cited
US2917489A
Cited
US3120182A
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US3034791A
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US3100447A
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US3036996A
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US3181464A
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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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |