Patent US3204238A successfully refreshed from Google Patents.
US3204238A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode ray tube for threedimensional presentations
Assignee: Tung Sol Electric Inc
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Filing: 1962-07-13
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Granted: 1965-08-31
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Expires: 1982-07-13
Abstract
No abstract record available.
Inventors
- 👤 Albert M Skellett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:52
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/70; G; G01; G01S; G01S7/00; G01S7/02; G01S7/04; G01S7/06; G01S7/20; H01J31/00; H01J31/08; H01J31/10; H01J31/22
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
165 words
A DEVICE FOR PRODUCING LIGHT SPOTS AT ANY POINT WITHIN A DEFINED PORTION OF SPACE COMPRISING: (A) A SCREEN ROTATABLE ABOUT AN AXIS AND WHICH IS THE LOCUS GENERATED BY A LINE ONE END OF WHICH REMAINS FIXED AT A POINT ALONG THE AXIS OF THE SCREEN AND THE OTHER END OF WHICH DEFINES A PATH WHICH EXTENDS AROUND THE SAID AXIS, THE ANGLE OF INCLINATION OF THE LINE WITH THE AXIS VARYING WITH THE POSITION AROUND THE AXIS; (B) A MEANS FOR DIRECTING A BEAM AT ANY SELECTED POINT ON THE SCREEN TO PRODUCE A LIGHT SPOT AT THAT POINT; AND (C) A MEANS FOR ROTATING THE SCREEN RELATIVE TO THE MEANS FOR DIRECTING A BEAM TO SWEEP OUT A THREE DIMENSIONAL FIGURE DEFINED BY THE PERIPHERY OF SAID SCREEN SO THAT LIGHT SPOTS CAN BE PRODUCED AT ANY POINT IN THAT PORTION OF SPACE IN SAID THREE DIMENSIONAL FIGURE BY THE MEANS FOR DIRECTING THE BEAM AS THE SCREEN PASSES THROUGH THAT POINT.
Claim 2
Independent Claim
165 words
A DEVICE FOR PRODUCING LIGHT SPOTS AT ANY POINT WITHIN A DEFINED PORTION OF SPACE COMPRISING: (A) A SCREEN ROTATABLE ABOUT AN AXIS AND WHICH IS THE LOCUS GENERATED BY A LINE ONE END OF WHICH REMAINS FIXED AT A POINT ALONG THE AXIS OF THE SCREEN AND THE OTHER END OF WHICH DEFINES A PATH WHICH EXTENDS AROUND THE SAID AXIS, THE ANGLE OF INCLINATION OF THE LINE WITH THE AXIS VARYING WITH THE POSITION AROUND THE AXIS; (B) A MEANS FOR DIRECTING A BEAM AT ANY SELECTED POINT ON THE SCREEN TO PRODUCE A LIGHT SPOT AT THAT POINT; AND (C) A MEANS FOR ROTATING THE SCREEN RELATIVE TO THE MEANS FOR DIRECTING A BEAM TO SWEEP OUT A THREE DIMENSIONAL FIGURE DEFINED BY THE PERIPHERY OF SAID SCREEN SO THAT LIGHT SPOTS CAN BE PRODUCED AT ANY POINT IN THAT PORTION OF SPACE IN SAID THREE DIMENSIONAL FIGURE BY THE MEANS FOR DIRECTING THE BEAM AS THE SCREEN PASSES THROUGH THAT POINT.
Claim 3
Dependent Claim
158 words
IN A CATHODE RAY TUBE TO BE USED AS AN INDICATOR IN A RADAR SET WITH AN ANTENNA POSITIONABLE IN ELEVATION AND AZIMUTH, WHERE SAID RADAR SET IS ADAPTED TO ROTATE THE ELECTRON FLOW WITHIN THE CATHODE RAY TUBE WITH THE ROTATION OF THE ANTENNA OF THE RADAR SET IN AZIMUTH AND TO DEFLECT THE ELECTRON FLOW RADIALLY IN PROPORTION TO THE PROPAGATION OF SIGNALS TO AND FROM THE ANTENNA, THE IMPROVEMENT COMPRISING A PHOSPHOR SCREEN ROTATED AROUND AN AXIS IN SUBSTANTIAL ALIGNMENT WITH THE FLOW OF UNDEFLECTED ELECTRONS FROM THE ELECTRON GUN OF THE CATHODE RAY TUBE TO GENERATE A THREE DIMENSIONAL FIGURE WITHIN WHICH LIGHT SPOTS PRODUCED ON THE SCREEN BY THE ELECTRONS ARE POSITIONED IN ACCORDANCE WITH THE RANGE, AXIMUTH AND ELEVATION OF ECHO PRODUCING OBJECTS WITHIN THE RANGE OF THE RADAR SET BY CONTROLLING THE ROTATION OF THE SCREEN RELATIVE TO THE ROTATION OF THE ELECTRONS WITH THE ROTATION OF THE ANTENNA IN AZIMUTH.
Claim 4
Dependent Claim
158 words
IN A CATHODE RAY TUBE TO BE USED AS AN INDICATOR IN A RADAR SET WITH AN ANTENNA POSITIONABLE IN ELEVATION AND AZIMUTH, WHERE SAID RADAR SET IS ADAPTED TO ROTATE THE ELECTRON FLOW WITHIN THE CATHODE RAY TUBE WITH THE ROTATION OF THE ANTENNA OF THE RADAR SET IN AZIMUTH AND TO DEFLECT THE ELECTRON FLOW RADIALLY IN PROPORTION TO THE PROPAGATION OF SIGNALS TO AND FROM THE ANTENNA, THE IMPROVEMENT COMPRISING A PHOSPHOR SCREEN ROTATED AROUND AN AXIS IN SUBSTANTIAL ALIGNMENT WITH THE FLOW OF UNDEFLECTED ELECTRONS FROM THE ELECTRON GUN OF THE CATHODE RAY TUBE TO GENERATE A THREE DIMENSIONAL FIGURE WITHIN WHICH LIGHT SPOTS PRODUCED ON THE SCREEN BY THE ELECTRONS ARE POSITIONED IN ACCORDANCE WITH THE RANGE, AXIMUTH AND ELEVATION OF ECHO PRODUCING OBJECTS WITHIN THE RANGE OF THE RADAR SET BY CONTROLLING THE ROTATION OF THE SCREEN RELATIVE TO THE ROTATION OF THE ELECTRONS WITH THE ROTATION OF THE ANTENNA IN AZIMUTH.
References Cited (Backward Citations)
US2637023A
Cited
US2806216A
Cited
US3138796A
Cited
US3140415A
Cited
US3079585A
Cited
US3097261A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |