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US3128705A Expired / Lapsed US ⏱️ 0.0 years remaining

Electric fuse for rocket

Assignee: Hotchkiss Brandt SA
•
Filing: 1961-07-10
•
Granted: 1964-04-14
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Expires: 1981-07-10
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Abstract

No abstract record available.

Inventors

  • 👤 Jasse Joseph Raymond

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 14:15
CPC Classifications
F; F42; F42C; F42C19/00; F42C19/06; F42C11/00; F42C11/02; F42C15/00; F42C15/18; F42C15/188; F42C15/40

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 321 words
IN AN ELECTRIC FUSE OF UTILITY IN A NON-GYRATORY PROJECTILE HAVING AN EXPLOSIVE CHARGE AND ELECTRIC CURRENT PRODUCING MEANS, THE FUSE HAVING A BODY AND, DISPOSED WITHIN THE BODY, A PIVOTAL SUPPORT AND AN ELECTRIC PRIMERDETONATOR CARRIED BY THE SUPPORT THE PRIMER-DETONATOR HAVING TWO PRIMER-IGNITING ELECTRODES CARRIED BY THE SUPPORT, A SPRING INTERPOSED BETWEEN THE SUPPORT AND THE BODY FOR BIASING THE SUPPORT IN A DIRECTION FROM AN UNARMED FUSE POSITION IN WHICH THE PRIMER-DETONATOR IS IN MISALIGNMENT WITH THE EXPLOSIVE CHARGE TO AN ARMED FUSE POSITION IN WHICH THE PRIMER-DETONATOR IS IN ALIGNMENT WITH THE EXPLOSIVE CHARGE; THE STRUCTURE COMPRISING, IN COMBINATION WITH THE SUPPORT, A DASHPOT DEVICE MOUNTED IN THE BODY AND HAVING A CHAMBER, A DAMPING FLUID IN THE CHAMBER AND A MEMBER MOVABLE RELATIVE TO THE CHAMBER, BY THE EFFECT OF INERTIA WHEN THE PROJECTILE ACCELERATES, IN OPPOSITION TO THE RETARDING ACTION OF THE DAMPING FLUID, BETWEEN A RETAINING POSITION IN WHICH SAID MEMBER DIRECTLY ENGAGES AND RETAINS THE SUPPORT IN SAID UNARMED FUSE POSITION AND A RETRACTED POSITION IN WHICH SAID MEMBER DISENGAGES FROM AND RELEASES THE SUPPORT AND ALLOWS THE SUPPORT TO PIVOT TO SAID ARMED FUSE POSITION, AND AN ELECTRIC SWITCHING MEANS FOR CONNECTING SAID ELECTRIC CURRENT PRODUCING MEANS TO SAID ELECTRIC PRIMER-DETONATOR, THE SWITCHING MEANS COMPRISING A FIRST TERMINAL AND A SECOND TERMINAL MOUNTED ON THE BODY, SAID CURRENT PRODUCING MEANS HAVING A FIRST CONDUCTOR CONNECTED TO THE FIRST TERMINAL AND A SECOND CONDUCTOR CONNECTED TO THE SECOND TERMINAL, THE FIRST TERMINAL BEING PERMANENTLY CONNECTED TO ONE OF THE ELECTRODES OF THE PRIMER-DETONATOR, A CONTACT MEMBER MOUNTED ON THE SUPPORT AND PERMANENTLY CONNECTED TO THE OTHER ELECTRODE OF THE PRIMER-DETONATOR, THE CONTACT MEMBER BEING IN CONTACT WITH SAID FIRST TERMINAL IN SAID UNARMED FUSE POSITION OF THE SUPPORT THEREBY SHORT-CIRCUITING THE PRIMER-DETONATOR AND BEING DISCONNECTED FROM THE FIRST TERMINAL AND CONNECTED TO THE SECOND TERMINAL IN SAID ARMED FUSE POSITION OF THE SUPPORT.
Claim 2
Dependent Claim 321 words
IN AN ELECTRIC FUSE OF UTILITY IN A NON-GYRATORY PROJECTILE HAVING AN EXPLOSIVE CHARGE AND ELECTRIC CURRENT PRODUCING MEANS, THE FUSE HAVING A BODY AND, DISPOSED WITHIN THE BODY, A PIVOTAL SUPPORT AND AN ELECTRIC PRIMERDETONATOR CARRIED BY THE SUPPORT THE PRIMER-DETONATOR HAVING TWO PRIMER-IGNITING ELECTRODES CARRIED BY THE SUPPORT, A SPRING INTERPOSED BETWEEN THE SUPPORT AND THE BODY FOR BIASING THE SUPPORT IN A DIRECTION FROM AN UNARMED FUSE POSITION IN WHICH THE PRIMER-DETONATOR IS IN MISALIGNMENT WITH THE EXPLOSIVE CHARGE TO AN ARMED FUSE POSITION IN WHICH THE PRIMER-DETONATOR IS IN ALIGNMENT WITH THE EXPLOSIVE CHARGE; THE STRUCTURE COMPRISING, IN COMBINATION WITH THE SUPPORT, A DASHPOT DEVICE MOUNTED IN THE BODY AND HAVING A CHAMBER, A DAMPING FLUID IN THE CHAMBER AND A MEMBER MOVABLE RELATIVE TO THE CHAMBER, BY THE EFFECT OF INERTIA WHEN THE PROJECTILE ACCELERATES, IN OPPOSITION TO THE RETARDING ACTION OF THE DAMPING FLUID, BETWEEN A RETAINING POSITION IN WHICH SAID MEMBER DIRECTLY ENGAGES AND RETAINS THE SUPPORT IN SAID UNARMED FUSE POSITION AND A RETRACTED POSITION IN WHICH SAID MEMBER DISENGAGES FROM AND RELEASES THE SUPPORT AND ALLOWS THE SUPPORT TO PIVOT TO SAID ARMED FUSE POSITION, AND AN ELECTRIC SWITCHING MEANS FOR CONNECTING SAID ELECTRIC CURRENT PRODUCING MEANS TO SAID ELECTRIC PRIMER-DETONATOR, THE SWITCHING MEANS COMPRISING A FIRST TERMINAL AND A SECOND TERMINAL MOUNTED ON THE BODY, SAID CURRENT PRODUCING MEANS HAVING A FIRST CONDUCTOR CONNECTED TO THE FIRST TERMINAL AND A SECOND CONDUCTOR CONNECTED TO THE SECOND TERMINAL, THE FIRST TERMINAL BEING PERMANENTLY CONNECTED TO ONE OF THE ELECTRODES OF THE PRIMER-DETONATOR, A CONTACT MEMBER MOUNTED ON THE SUPPORT AND PERMANENTLY CONNECTED TO THE OTHER ELECTRODE OF THE PRIMER-DETONATOR, THE CONTACT MEMBER BEING IN CONTACT WITH SAID FIRST TERMINAL IN SAID UNARMED FUSE POSITION OF THE SUPPORT THEREBY SHORT-CIRCUITING THE PRIMER-DETONATOR AND BEING DISCONNECTED FROM THE FIRST TERMINAL AND CONNECTED TO THE SECOND TERMINAL IN SAID ARMED FUSE POSITION OF THE SUPPORT.

References Cited (Backward Citations)

US2975711A Cited
US2853011A Cited
US2994271A Cited
US2934019A Cited
US3000313A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1967-04-14 1967-10-14 1968-04-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1971-04-14 1971-10-14 1972-04-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1975-04-14 1975-10-14 1976-04-14 $7700.00 Window Closed / Lapsed

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