US3486452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuze
Assignee: United States Department of the Army
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Filing: 1954-05-06
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Granted: 1969-12-30
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Expires: 1974-05-06
Abstract
No abstract record available.
Inventors
- 👤 John J Glowacki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:23
CPC Classifications
F; F42; F42C; F42C9/00; F42C9/14; F42C11/00; F42C11/02; F42C15/00; F42C15/24; F42C15/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
IN A POINT DETONATING FUZE FOR A ROTATABLE PROJECTILE A BODY HAVING AN AXIAL PASSAGE FROM FRONT TO REAR, AN EXPLOSIVE TRAIN MOUNTED THEREIN AND COMPRISING A DETONATOR EXPLODABLE UPON PASSAGE OF ELECTRICAL ENERGY THERETHROUGH, MEANS TO SHORT CIRCUIT SAID DETONATOR IN FUZE DISARMED POSITION, A PIEZOELECTRIC CRYSTAL IN SAID PASSAGE, A CIRCUIT TO SUPPLY ELECTRICAL ENERGY TO THE SAID DETONATOR AND CONNECTED TO SAID CRYSTAL, TIMING MEANS FORMING A PART OF SAID CIRCUIT TO CLOSE SAID CIRCUIT AFTER A PREDETERMINED TIME INTERVAL, AND MEANS NORMALLY SPACED FROM SAID CRYSTAL AND ADAPTED TO IMPACT AGAINST SAID CRYSTAL TO GROUND THE SAME UPON ENGAGEMENT OF SAID FUZE WITH A TARGET.
Claim 2
Dependent Claim
109 words
IN A POINT DETONATING FUZE FOR A ROTATABLE PROJECTILE A BODY HAVING AN AXIAL PASSAGE FROM FRONT TO REAR, AN EXPLOSIVE TRAIN MOUNTED THEREIN AND COMPRISING A DETONATOR EXPLODABLE UPON PASSAGE OF ELECTRICAL ENERGY THERETHROUGH, MEANS TO SHORT CIRCUIT SAID DETONATOR IN FUZE DISARMED POSITION, A PIEZOELECTRIC CRYSTAL IN SAID PASSAGE, A CIRCUIT TO SUPPLY ELECTRICAL ENERGY TO THE SAID DETONATOR AND CONNECTED TO SAID CRYSTAL, TIMING MEANS FORMING A PART OF SAID CIRCUIT TO CLOSE SAID CIRCUIT AFTER A PREDETERMINED TIME INTERVAL, AND MEANS NORMALLY SPACED FROM SAID CRYSTAL AND ADAPTED TO IMPACT AGAINST SAID CRYSTAL TO GROUND THE SAME UPON ENGAGEMENT OF SAID FUZE WITH A TARGET.
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) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |