Patent US3300568A successfully refreshed from Google Patents.
US3300568A
Expired / Lapsed
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Sonar simulation apparatus
Assignee: Honeywell Inc
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Filing: 1965-09-09
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Granted: 1967-01-24
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Expires: 1985-09-09
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Sear
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:12
CPC Classifications
G; G09; G09B; G09B9/00; G09B9/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A SIMULATOR FOR PASSIVE SONAR APPARATUS, COMPRISING: (A) A CATHODE RAY TUBE HAVING A POLAR DISPLAY AND INCLUDING MEANS FOR PRODUCING A SPOT OF LIGHT; (B) MEANS FOR MOVING THE SPOT OF LIGHT ON THE FACE OF SAID TUBE TO SIMULATE A TARGET, SAID SPOT BEING MOVED TO SIMULATE THE RELATIVE BEARING OF THE TARGET WITH RESPECT TO OWN SHIP LOCATED AT THE CENTER OF SAID TUBE FACE; (C) MEANS FOR MODULATING THE INTENSITY OF SAID SPOT OF LIGHT THROUGH A PREDETERMINED RANGE TO SIMULATE THE NOISE CHARACTERISTICS OF THE TARGET; (D) A ROTATABLE VARIABLE DENSITY OPTICAL FILTER CHARACTERIZED TO SIMULATE THE RECEIVING BEAM PATTERN OF OWN SHIP''S SONAR MOUNTED IN FRONT OF SAID TUBE; (E) A FIRST PROJECTION LENS MOUNTED BETWEEN SAID TUBE AND SAID FILTER TO PROJECT AN IMAGE OF SAID TUBE FACE ON SAID FILTER; (F) A PHOTOTUBE MOUNTED OPPOSITE SAID FILTER FROM SAID FIRST LENS; AND
Claim 2
Dependent Claim
150 words
A SIMULATOR FOR PASSIVE SONAR APPARATUS, COMPRISING: (A) A CATHODE RAY TUBE HAVING A POLAR DISPLAY AND INCLUDING MEANS FOR PRODUCING A SPOT OF LIGHT; (B) MEANS FOR MOVING THE SPOT OF LIGHT ON THE FACE OF SAID TUBE TO SIMULATE A TARGET, SAID SPOT BEING MOVED TO SIMULATE THE RELATIVE BEARING OF THE TARGET WITH RESPECT TO OWN SHIP LOCATED AT THE CENTER OF SAID TUBE FACE; (C) MEANS FOR MODULATING THE INTENSITY OF SAID SPOT OF LIGHT THROUGH A PREDETERMINED RANGE TO SIMULATE THE NOISE CHARACTERISTICS OF THE TARGET; (D) A ROTATABLE VARIABLE DENSITY OPTICAL FILTER CHARACTERIZED TO SIMULATE THE RECEIVING BEAM PATTERN OF OWN SHIP''S SONAR MOUNTED IN FRONT OF SAID TUBE; (E) A FIRST PROJECTION LENS MOUNTED BETWEEN SAID TUBE AND SAID FILTER TO PROJECT AN IMAGE OF SAID TUBE FACE ON SAID FILTER; (F) A PHOTOTUBE MOUNTED OPPOSITE SAID FILTER FROM SAID FIRST LENS; AND
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |