US4135452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Time delay computer using fuze doppler for air-to-air missiles
Assignee: United States Department of the Navy
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Filing: 1978-01-09
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Granted: 1979-01-23
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Expires: 1998-01-09
Abstract
Abstract Fuzing incorporating a doppler signal for establishing warhead fuzing time.ore particularly, circuitry is provided in which the doppler is detected, integrated and used upon exceeding the level of a preset threshold device to enable two preset counters to effect fuzing only if their individual preset counts are achieved within a time established by their associated timers. A third, higher count, preset counter effects the fuzing if not earlier realized from one of the other counters, while a dropout detector responsive to the threshold device output effects the fuzing in cases where the threshold level is exceeded and then lost.
Inventors
- 👤 Lloyd E. Kinsey
- 👤 Gregory C. Roush
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:32
CPC Classifications
F; F42; F42C; F42C13/00; F42C13/04
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
95 words
An electronic device for detonating an explosive charge comprising: signal means for providing a wave train which has been reflected from a target, converting means, electrically connected to said signal means, for altering said reflected wave train; enabling means, electrically connected to said converting means, for transmitting a pulse when said wave train has reached a predetermined amplitude, reckoning means, electrically activated by said enabling means, for analyzing the frequency of said wave train; and triggering means, electrically connected to said reckoning means, for releasing an electrical pulse; whereby said electrical pulse activates firing circuits.
Claim 2
Dependent Claim
95 words
An electronic device for detonating an explosive charge comprising: signal means for providing a wave train which has been reflected from a target, converting means, electrically connected to said signal means, for altering said reflected wave train; enabling means, electrically connected to said converting means, for transmitting a pulse when said wave train has reached a predetermined amplitude, reckoning means, electrically activated by said enabling means, for analyzing the frequency of said wave train; and triggering means, electrically connected to said reckoning means, for releasing an electrical pulse; whereby said electrical pulse activates firing circuits.
Claim 3
Dependent Claim
70 words
An electronic device for detonating an explosive charge according to claim 1 wherein said converting means includes: a doppler amplifier; a detector amplifier, electrically connected to said doppler amplifier; an integrator, electrically connected to said detector amplifier, which, when combined with said detector, changes said wave train from AC to DC; and a zero crossing detector, electrically connected to said doppler amplifier, for transforming said wave train to square pulses.
Claim 4
Dependent Claim
25 words
An electronic device for detonating an explosive charge according to claim 1 wherein said enabling means includes a threshold amplifier loaded by a predetermined voltage.
Claim 5
Dependent Claim
34 words
An electronic device for detonating an explosive charge according to claim 2 wherein the aforesaid enabling means includes a threshold amplifier, electrically connected to said integrator, said threshold amplifier loaded by a predetermined voltage.
Claim 6
Dependent Claim
87 words
An electronic device for detonating an explosive charge according to claim 1 wherein said reckoning means comprises: counting means, electrically connected to said enabling means, for calculating a predetermined number of waves in said wave train thereby initiating a pulse to said triggering means; timing means, electrically connected to said enabling means, for measuring a predetermined amount of time, thereby ending an enabling pulse to said triggering means; and secondary arming means, electrically connected to said enabling means, for providing a pulse signal to said triggering means.
Claim 7
Dependent Claim
23 words
An electronic device for detonating an explosive charge according to claim 5 wherein said counting means comprises a plurality of preset wave counters.
Claim 8
Dependent Claim
22 words
An electronic device for detonating an explosive charge according to claim 5 wherein said timing means comprises a plurality of one-shot timers.
Claim 9
Dependent Claim
21 words
An electronic device for detonating an explosive charge according to claim 5 wherein said secondary arming means comprises a drop-out detector.
Claim 10
Dependent Claim
91 words
An electronic device for detonating an explosive charge according to claim 4 wherein the aforesaid reckoning means comprises: counting means, electrically connected to said threshold amplifier, for calculating a predetermined number of waves in said wave train, thereby initiating a pulse to the aforesaid triggering means, timing means, electrically connected to said threshold amplifier, for measuring a predetermined amount of time, thereby ending an enabling pulse to the aforesaid triggering means; and secondary arming means, electrically connected to said threshold amplifier, for providing a pulse signal to the aforesaid triggering means.
Claim 11
Dependent Claim
35 words
An electronic device for detonating an explosive charge according to claim 1 wherein said triggering means comprises: at least one OR gate; and a plurality of D flip-flop circuits, electrically connected to said OR gate.
Claim 12
Dependent Claim
69 words
An electronic device for detonating an explosive charge according to claim 9 wherein the aforesaid triggering means includes: at least one OR gate; and a plurality of D flip-flop circuits, each having two inputs and one output, one of said inputs being electrically connected to said counting means, the other of said inputs being electrically connected to said timing means, and said output being connected to said OR gate.
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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) | 1982-01-22 | 1982-07-24 | 1983-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-22 | 1986-07-24 | 1987-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-22 | 1990-07-24 | 1991-01-23 | $7700.00 | Window Closed / Lapsed |