US3128600A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multilevel solid propellant rocket motor
Assignee: ATK Launch Systems LLC
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Filing: 1960-05-18
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Granted: 1964-04-14
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Expires: 1980-05-18
Abstract
No abstract record available.
Inventors
- 👤 Herman J Oldham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:31
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/94; F02K9/08; F02K9/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
161 words
A MULTILEVEL ROCKET MOTOR COMPRISING A MOTOR CASING HAVING NOZZLE MEANS, A HEAT-REMOVABLE TUBULAR CENTRAL SUPPORT LONGITUDINALLY DISPOSED WITHIN SAID CASING, A PLURALITY OF CHARGE SEGMENTS OF A SOLID PROPELLANT COMPOSITION ARRANGED ALONG SAID TUBULAR CENTRAL SUPPORT, EACH SEGMENT COMPRISING AN INNER ANNULUS ADJACENT TO SAID SUPPORT AND AN OUTER ANNULUS ADJACENT TO SAID MOTOR CASING AND HAVING TWO LATERAL SURFACES AT LEAST ONE OF WHICH FACES AN ADJACENT PROPELLANT SEGMENT, EACH SAID SEGMENT FURTHER HAVING SAID INNER ANNULUS AND SAID OUTER ANNULUS CAST ABOUT AN IGNITABLE BAND EMBEDDED IN SAID SEGMENT, SAID IGNITABLE BAND EXTENDING ONLY BETWEEN THE LATERAL SURFACES OF SAID SEGMENT AND COMPRISING ELECTRICALLY ACTUATED FUZE MEANS THEREIN, A PLURALITY OF DISINTEGRABLE DISCOID INSULATING MEMBERS SEPARATING FACING LATERAL SURFACES OF ADJACENT PROPELLANT CHAGE SEGMENTS, CONTROL MEANS IN SAID ROCKET CASING FOR ELECTRICALLY ACTUATING SAID FUZE MEANS, AND A PLURALITY OF ELECTRICALLY CONDUCTING WIRES CONNECTING SAID CONTROL MEANS AND SAID FUZE MEANS AND EXTENDING THROUGH SAID TUBULAR CENTRAL SUPPORT.
Claim 2
Dependent Claim
161 words
A MULTILEVEL ROCKET MOTOR COMPRISING A MOTOR CASING HAVING NOZZLE MEANS, A HEAT-REMOVABLE TUBULAR CENTRAL SUPPORT LONGITUDINALLY DISPOSED WITHIN SAID CASING, A PLURALITY OF CHARGE SEGMENTS OF A SOLID PROPELLANT COMPOSITION ARRANGED ALONG SAID TUBULAR CENTRAL SUPPORT, EACH SEGMENT COMPRISING AN INNER ANNULUS ADJACENT TO SAID SUPPORT AND AN OUTER ANNULUS ADJACENT TO SAID MOTOR CASING AND HAVING TWO LATERAL SURFACES AT LEAST ONE OF WHICH FACES AN ADJACENT PROPELLANT SEGMENT, EACH SAID SEGMENT FURTHER HAVING SAID INNER ANNULUS AND SAID OUTER ANNULUS CAST ABOUT AN IGNITABLE BAND EMBEDDED IN SAID SEGMENT, SAID IGNITABLE BAND EXTENDING ONLY BETWEEN THE LATERAL SURFACES OF SAID SEGMENT AND COMPRISING ELECTRICALLY ACTUATED FUZE MEANS THEREIN, A PLURALITY OF DISINTEGRABLE DISCOID INSULATING MEMBERS SEPARATING FACING LATERAL SURFACES OF ADJACENT PROPELLANT CHAGE SEGMENTS, CONTROL MEANS IN SAID ROCKET CASING FOR ELECTRICALLY ACTUATING SAID FUZE MEANS, AND A PLURALITY OF ELECTRICALLY CONDUCTING WIRES CONNECTING SAID CONTROL MEANS AND SAID FUZE MEANS AND EXTENDING THROUGH SAID TUBULAR CENTRAL SUPPORT.
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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) | 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 |