US3263029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Large screen projection display device employing a printing cathode ray tube
Assignee: Kollsman Instrument Corp
•
Filing: 1963-03-28
•
Granted: 1966-07-26
•
Expires: 1983-03-28
Abstract
No abstract record available.
Inventors
- 👤 Lilly S Rosenthal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:35
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/74; H04N5/7416; H04N5/7425
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
220 words
A DEVICE OF THE CLASS DESCRIBED COMPRISING A PRINTING CATHODE RAY TUBE HAVING A TARGET AREA, MEANS FOR GENERATING AN ELECTRON BEAM AND DIRECTING SAID BEAM TO SAID TARGET AREA, AND MEANS FOR DEFLECTING SAID BEAM TO SELECTED POINTS OF SAID TARGET AREA THEREBY ESTABLISHING LOCAL CHARGES AT SAID POINTS; A SHEET EXTERNAL OF SAID TUBE ADJACENT TO SAID TARGET AREA; FIRST MEANS IMPINGING UPON SAID SHEET TO PRODUCE AT SAID SHEET AN IMAGE RELATE TO POINTS OF TARGET AREA REACHED BY SAID ELECTRON BEAM; A SCREEN; AND SECOND MEANS FOR ENLARGING AND PROJECTING SAID IMAGE ONTO SAID SCREEN FOR VIEWING; SAID SHEET COMPRISING A MEMBRANE CLOSELY SPACED FROM SAID TARGET AREA; SAID MEMBRANE BEING DEFLECTABLE AT LOCAL AREAS THEREOF; SAID MEMBRANE INCLUDING A LIGHT REFLECTING SURFACE ON THE SIDE THEREOF REMOTE FROM SAID TARGET AREA; A LIGHT SOURCE FOR GENERATING A LIGHT BEAM CONSTITUTING SAID FIRST MEANS; A DIAPHRAGM INCLUDING A REFLECTING PORTION AND A TRANSPARENT PORTION; SAID REFLECTING PORTION POSITIONED TO REFLECT SAID LIGHT BEAM TO SAID LIGHT REFLECTING SURFACE; SAID IMAGE BEING FORMED BY DEFLECTION OF SAID MEMBRANE AT POINTS THEREOF OPPOSITE POINTS OF SAID TARGET AREA TRAVERSED BY SAID ELECTRON BEAM; SAID TRANSPARENT PORTION OF SAID DIAPHRAGM POSITIONED TO PASS PORTIONS OF SAID LIGHT REFLECTED FROM DEFLECTED PARTS OF SAID LIGHT REFLECTING SURFACE TO SAID SCREEN.
Claim 2
Independent Claim
220 words
A DEVICE OF THE CLASS DESCRIBED COMPRISING A PRINTING CATHODE RAY TUBE HAVING A TARGET AREA, MEANS FOR GENERATING AN ELECTRON BEAM AND DIRECTING SAID BEAM TO SAID TARGET AREA, AND MEANS FOR DEFLECTING SAID BEAM TO SELECTED POINTS OF SAID TARGET AREA THEREBY ESTABLISHING LOCAL CHARGES AT SAID POINTS; A SHEET EXTERNAL OF SAID TUBE ADJACENT TO SAID TARGET AREA; FIRST MEANS IMPINGING UPON SAID SHEET TO PRODUCE AT SAID SHEET AN IMAGE RELATE TO POINTS OF TARGET AREA REACHED BY SAID ELECTRON BEAM; A SCREEN; AND SECOND MEANS FOR ENLARGING AND PROJECTING SAID IMAGE ONTO SAID SCREEN FOR VIEWING; SAID SHEET COMPRISING A MEMBRANE CLOSELY SPACED FROM SAID TARGET AREA; SAID MEMBRANE BEING DEFLECTABLE AT LOCAL AREAS THEREOF; SAID MEMBRANE INCLUDING A LIGHT REFLECTING SURFACE ON THE SIDE THEREOF REMOTE FROM SAID TARGET AREA; A LIGHT SOURCE FOR GENERATING A LIGHT BEAM CONSTITUTING SAID FIRST MEANS; A DIAPHRAGM INCLUDING A REFLECTING PORTION AND A TRANSPARENT PORTION; SAID REFLECTING PORTION POSITIONED TO REFLECT SAID LIGHT BEAM TO SAID LIGHT REFLECTING SURFACE; SAID IMAGE BEING FORMED BY DEFLECTION OF SAID MEMBRANE AT POINTS THEREOF OPPOSITE POINTS OF SAID TARGET AREA TRAVERSED BY SAID ELECTRON BEAM; SAID TRANSPARENT PORTION OF SAID DIAPHRAGM POSITIONED TO PASS PORTIONS OF SAID LIGHT REFLECTED FROM DEFLECTED PARTS OF SAID LIGHT REFLECTING SURFACE TO SAID SCREEN.
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) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |