US3205846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Torpedo body form and gas layer control
Assignee: Individual
•
Filing: 1964-01-07
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Granted: 1965-09-14
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Expires: 1984-01-07
Abstract
No abstract record available.
Inventors
- 👤 Thomas G Lang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:02
CPC Classifications
B; B63; B63B; B63B1/00; B63B1/32; B63B1/34; B63B1/38; F; F42; F42B; F42B19/00; F42B19/12; F42B19/125; Y; Y02; Y02T; Y02T70/00; Y02T70/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
AN UNDERWATER CRAFT COMPRISING: (A) AN ELONGATED HULL HAVING GENERALLY ROUNDED TRANSVERSE SECTIONS THEREALONG, (B) MEANS FOR GENERATING AN ANNULAR GAS CAVITY ADJACENT TO THE HULL AND FOR COMMUNICATING THE CAVITY REARWARDLY FROM A PREDETERMINED CIRCUMFERENTIAL CAVITY GENERATION LOCUS OF THE HULL DISPOSED NEAR THE NOSE OF THE CRAFT TO A PREDETERMINED CIRCUMFERENTIAL CAVITY CLOSURE AND REWET LOCUS OF THE HULL DISPOSED NEAR THE TAIL OF THE CRAFT, WHEREBY SKIN FRICTION OF THE HULL BETWEEN THE LOCI IS SUBSTANTIALLY REDUCED, (C) SAID MEANS FOR GENERATING AND COMMUNICATING THE CAVITY INCLUDING MEANS FOR INTRODUCING A GAS UNTO THE CAVITY AND FOR SELECTIVELY VARYING THE QUANTITY OF GAS INTRODUCED INTO THE CAVITY TO MAINTAIN SAME COMMUNTICATED BETWEEN THE LOCI, (D) MEANS FOR MEASURING THE THICKNESS OF SAID ANNULAR CAVITY, SAID MEANS ADAPTED TO INTRODUCE A VARIBLE QUANTITY OF GAS INTO THE CAVITY, AND (E) INCLUDING MEANS RESPONSIVE TO SAID THICKNESS ADAPTED TO CONTROL THE QUANTITY OF GAS INTRODUCED INTO SAID CAVITY IN AN INVERSE RELATIONSHIP TO THE CAVITY THICKNESS.
Claim 2
Dependent Claim
167 words
AN UNDERWATER CRAFT COMPRISING: (A) AN ELONGATED HULL HAVING GENERALLY ROUNDED TRANSVERSE SECTIONS THEREALONG, (B) MEANS FOR GENERATING AN ANNULAR GAS CAVITY ADJACENT TO THE HULL AND FOR COMMUNICATING THE CAVITY REARWARDLY FROM A PREDETERMINED CIRCUMFERENTIAL CAVITY GENERATION LOCUS OF THE HULL DISPOSED NEAR THE NOSE OF THE CRAFT TO A PREDETERMINED CIRCUMFERENTIAL CAVITY CLOSURE AND REWET LOCUS OF THE HULL DISPOSED NEAR THE TAIL OF THE CRAFT, WHEREBY SKIN FRICTION OF THE HULL BETWEEN THE LOCI IS SUBSTANTIALLY REDUCED, (C) SAID MEANS FOR GENERATING AND COMMUNICATING THE CAVITY INCLUDING MEANS FOR INTRODUCING A GAS UNTO THE CAVITY AND FOR SELECTIVELY VARYING THE QUANTITY OF GAS INTRODUCED INTO THE CAVITY TO MAINTAIN SAME COMMUNTICATED BETWEEN THE LOCI, (D) MEANS FOR MEASURING THE THICKNESS OF SAID ANNULAR CAVITY, SAID MEANS ADAPTED TO INTRODUCE A VARIBLE QUANTITY OF GAS INTO THE CAVITY, AND (E) INCLUDING MEANS RESPONSIVE TO SAID THICKNESS ADAPTED TO CONTROL THE QUANTITY OF GAS INTRODUCED INTO SAID CAVITY IN AN INVERSE RELATIONSHIP TO THE CAVITY THICKNESS.
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) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |