US3141434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Torpedo ballast release
Assignee: Individual
•
Filing: 1960-10-11
•
Granted: 1964-07-21
•
Expires: 1980-10-11
Abstract
No abstract record available.
Inventors
- 👤 Lewis H Van Billiard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:13
CPC Classifications
F; F42; F42B; F42B19/00; F42B19/36; F42B19/38; F42B19/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
BALLAST RELEASE APPARATUS FOR RENDERING A NON-BUOYANT TORPEDO BOYANT UPON RELEASE THEREFROM OF BALLAST, SAID TORPEDO HAVING A LONGITUDINAL AXIS AND A CYLINDRICAL CAVITY HAVING AN AXIS DISPOSED DIAMETRICALLY TRANSVERSE TO SAID AXIS AND HAVING AN OPENING AT ONE END THEREOF TO AMBIENT WATER, COMPRISING: (A) AT LEAST ONE SOLID CYLINDRICAL BALLAST WEIGHT DISPOSED WITHIN SAID CAVITY, (B) SAID WEIGHT HAVING A THREADED CENTRAL APERTURE, (C) A SHAFT DISPOSED AXIALLY OF SAID CAVITY, MOUNTED FOR ROTATION, (D) SAID SHAFT HAVING THREADS ENGAGING SAID THREADED CENTRAL APERTURE, (E) A TORSION SPRING HAVING ONE END SECURED TO SAID SHAFT AND ITS OTHER END SECURED TO THE TORPEDO, (F) MEANS FOR SELECTIVELY LATCHING SAID SHAFT AGAINST ROTATION BY SAID SPRING AND FOR UNLATCHING SAID SHAFT FOR ROTATION BY SAID SPRING, (G) ONE END OF SAID SHAFT BEING ACCESSIBLE THROUGH AN OPENING IN THE TORPEDO FOR ROTATING IT AGAINST THE TORSIONAL URGE OF THE SPRING.
Claim 2
Dependent Claim
151 words
BALLAST RELEASE APPARATUS FOR RENDERING A NON-BUOYANT TORPEDO BOYANT UPON RELEASE THEREFROM OF BALLAST, SAID TORPEDO HAVING A LONGITUDINAL AXIS AND A CYLINDRICAL CAVITY HAVING AN AXIS DISPOSED DIAMETRICALLY TRANSVERSE TO SAID AXIS AND HAVING AN OPENING AT ONE END THEREOF TO AMBIENT WATER, COMPRISING: (A) AT LEAST ONE SOLID CYLINDRICAL BALLAST WEIGHT DISPOSED WITHIN SAID CAVITY, (B) SAID WEIGHT HAVING A THREADED CENTRAL APERTURE, (C) A SHAFT DISPOSED AXIALLY OF SAID CAVITY, MOUNTED FOR ROTATION, (D) SAID SHAFT HAVING THREADS ENGAGING SAID THREADED CENTRAL APERTURE, (E) A TORSION SPRING HAVING ONE END SECURED TO SAID SHAFT AND ITS OTHER END SECURED TO THE TORPEDO, (F) MEANS FOR SELECTIVELY LATCHING SAID SHAFT AGAINST ROTATION BY SAID SPRING AND FOR UNLATCHING SAID SHAFT FOR ROTATION BY SAID SPRING, (G) ONE END OF SAID SHAFT BEING ACCESSIBLE THROUGH AN OPENING IN THE TORPEDO FOR ROTATING IT AGAINST THE TORSIONAL URGE OF THE SPRING.
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) | 1967-07-21 | 1968-01-20 | 1968-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-21 | 1972-01-20 | 1972-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-21 | 1976-01-20 | 1976-07-21 | $7700.00 | Window Closed / Lapsed |