US3136380A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sonar dome and self-damping component thereof
Assignee: RIVERSIDE PLASTICS Corp
•
Filing: 1959-10-15
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Granted: 1964-06-09
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Expires: 1979-10-15
Abstract
No abstract record available.
Inventors
- 👤 Mccoy John Harvey
- 👤 Walter H Greenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:56
CPC Classifications
G; G10; G10K; G10K11/00; G10K11/02; G10K11/004; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24149; Y10T428/24165
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
IN A SONAR DOME, AN ACOUSTIC WINDOW THROUGH WHICH THE COMPRESSION WAVES OF A SONAR SIGNAL MAY BE PASSED, SAID DOME CONSISTING OF THREE LAYERS, WITH EACH OF THE OUTER LAYERS BEING SUBSTANTIALLY ACOUSTICALLY INDENTICAL IN SECTION, AND WITH THE CENTER LAYER BEING A RELATIVELY VISCO-ELASTIC DAMPING MATERIAL COMPARED WITH THE OUTER LAYERS AND COMPRISING A CELLULAR CORE HAVING INTERCONNECTED CELLS, EACH OF SAID CELLS CONTAINING A VISCOUS MATERIAL WITH THE OUTER WALLS OF THE CELLS ON THE OUTER EDGE OF SAID CORE BEING SEALED, THE STIFFNESS OF SAID CORE BEING SUFFICIENT SO THAT THE ENTIRE STRUCTURE OF THE DOME PARTAKES OF THE SAME FLEXURAL VIBRATION, AND WITH THE COMBINED THICKNESS OF THE THREE LAYERS BEING NON-DETRIMENTAL TO THE TRANSMISSION OF CRITICAL FREQUENCIES THROUGH THE DOME.
Claim 2
Dependent Claim
126 words
IN A SONAR DOME, AN ACOUSTIC WINDOW THROUGH WHICH THE COMPRESSION WAVES OF A SONAR SIGNAL MAY BE PASSED, SAID DOME CONSISTING OF THREE LAYERS, WITH EACH OF THE OUTER LAYERS BEING SUBSTANTIALLY ACOUSTICALLY INDENTICAL IN SECTION, AND WITH THE CENTER LAYER BEING A RELATIVELY VISCO-ELASTIC DAMPING MATERIAL COMPARED WITH THE OUTER LAYERS AND COMPRISING A CELLULAR CORE HAVING INTERCONNECTED CELLS, EACH OF SAID CELLS CONTAINING A VISCOUS MATERIAL WITH THE OUTER WALLS OF THE CELLS ON THE OUTER EDGE OF SAID CORE BEING SEALED, THE STIFFNESS OF SAID CORE BEING SUFFICIENT SO THAT THE ENTIRE STRUCTURE OF THE DOME PARTAKES OF THE SAME FLEXURAL VIBRATION, AND WITH THE COMBINED THICKNESS OF THE THREE LAYERS BEING NON-DETRIMENTAL TO THE TRANSMISSION OF CRITICAL FREQUENCIES THROUGH THE DOME.
References Cited (Backward Citations)
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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) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |