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US3075870A Expired / Lapsed US ⏱️ 0.0 years remaining

Cathode ray tube shield

Assignee: GTE Sylvania Inc
•
Filing: 1959-12-21
•
Granted: 1963-01-29
•
Expires: 1979-12-21
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Abstract

No abstract record available.

Inventors

  • 👤 Robert A Hedler
  • 👤 John F Larson
  • 👤 John W Stetz

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 17:41
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/86; H01J29/87; B; B32; B32B; B32B37/00; B32B37/0007; B32B37/003; B32B37/12; B32B37/1284; H01J2229/00; H01J2229/87; H01J2229/875; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49885; Y10T29/49895

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 281 words
IN A PROCESS FOR FILLING THE VOLUME BETWEEN THE CONVEX OUTER SURFACE OF A CATHODE RAY TUBE FACEPLATE AND THE DISH-SHAPED CONCAVE INNER SURFACE OF A SAFETY SHIELD WITH A FLUID SUITABLE FOR HARDENING INTO A SUBSTANTIALLY SOLID LIGHT PERMEABLE BONDING MEDIUM, THE STEPS COMPRISING SUPPORTING A SAFETY SHIELD WITH ITS CONCAVE INNER SURFACE DISPOSED UPWARDLY AND SYNMMETRICALLY AROUND A VERTICAL AXIS THROUGH THE CENTER OF THE SHIELD, SUPPORTING A CATHODE RAY TUBE ABOVE THE SAFETY SHIELD WITH THE LONGITUDINAL AXIS OF THE CATHODE RAY TUBE DISPOSED IN PARALLEL SPACED RELATIONSHIP WITH THE SAFETY SHIELD VERTICAL AXIS OF SYMMETRY AND WITH THE CONVEX CATHODE RAY TUBE FACEPLATE SURFACE DISPOSED ADJACENT AND IN SPACED RELATIONSHIP WITH THE CONCAVE SAFETY SHIELD SURFACE, WHEREBY THE SPACING BETWEEN AN EDGE OF THE CONVEX FACEPLATE SURFACE AND THE ADJACENT EDGE OF THE CONCAVE SAFETY SHIELD SURFACE IS GREATER ON ONE SIDE OF THE SAFETY SHIELD, THAN BETWEEN THE OPPOSITE EDGES OF THE FACE PLATE AND SAFETY SHIELD, FLOWING A GIVEN QUANTITY OF A LIGHT PERMEABLE HARDENABLE FLUID BONDING MEDIUM DOWN SAID ONE SIDE OF THE CONCAVE SAFETY SHIELD SURFACE, SAID GIVEN QUANTITY OF FLUID BONDING MEDIUM BEING SUFFICIENT TO FILL THE SAFETY PANEL ABOVE THE LOWERMOST LEVEL OF THE CONVEX SURFACE OF THE CATHODE RAY TUBE FACEPLATE, MOVING THE FACEPLATE VERTICALLY TOWARD THE CATHODE RAY TUBE FORCE THE UPPER LEVLE OF THE BONDING MEDIUM TO WET THE MAJOR PORTION OF THE CONVEX FACEPLATE SURFACE AND TO FILL THE MAJOR PORTION OF THE VOLUME BOUNDED IN PART BY THE CONVEX FACEPLATE SURFACE AND THE CONCAVE SAFETY SHIELD SURFACE, AND CLAMPING THE SAFETY SHIELD RELATIVE TO THE CATHODE RAY TUBE FOR THE HARDENING PERIOD OF THE BONDING MEDIUM.
Claim 2
Dependent Claim 281 words
IN A PROCESS FOR FILLING THE VOLUME BETWEEN THE CONVEX OUTER SURFACE OF A CATHODE RAY TUBE FACEPLATE AND THE DISH-SHAPED CONCAVE INNER SURFACE OF A SAFETY SHIELD WITH A FLUID SUITABLE FOR HARDENING INTO A SUBSTANTIALLY SOLID LIGHT PERMEABLE BONDING MEDIUM, THE STEPS COMPRISING SUPPORTING A SAFETY SHIELD WITH ITS CONCAVE INNER SURFACE DISPOSED UPWARDLY AND SYNMMETRICALLY AROUND A VERTICAL AXIS THROUGH THE CENTER OF THE SHIELD, SUPPORTING A CATHODE RAY TUBE ABOVE THE SAFETY SHIELD WITH THE LONGITUDINAL AXIS OF THE CATHODE RAY TUBE DISPOSED IN PARALLEL SPACED RELATIONSHIP WITH THE SAFETY SHIELD VERTICAL AXIS OF SYMMETRY AND WITH THE CONVEX CATHODE RAY TUBE FACEPLATE SURFACE DISPOSED ADJACENT AND IN SPACED RELATIONSHIP WITH THE CONCAVE SAFETY SHIELD SURFACE, WHEREBY THE SPACING BETWEEN AN EDGE OF THE CONVEX FACEPLATE SURFACE AND THE ADJACENT EDGE OF THE CONCAVE SAFETY SHIELD SURFACE IS GREATER ON ONE SIDE OF THE SAFETY SHIELD, THAN BETWEEN THE OPPOSITE EDGES OF THE FACE PLATE AND SAFETY SHIELD, FLOWING A GIVEN QUANTITY OF A LIGHT PERMEABLE HARDENABLE FLUID BONDING MEDIUM DOWN SAID ONE SIDE OF THE CONCAVE SAFETY SHIELD SURFACE, SAID GIVEN QUANTITY OF FLUID BONDING MEDIUM BEING SUFFICIENT TO FILL THE SAFETY PANEL ABOVE THE LOWERMOST LEVEL OF THE CONVEX SURFACE OF THE CATHODE RAY TUBE FACEPLATE, MOVING THE FACEPLATE VERTICALLY TOWARD THE CATHODE RAY TUBE FORCE THE UPPER LEVLE OF THE BONDING MEDIUM TO WET THE MAJOR PORTION OF THE CONVEX FACEPLATE SURFACE AND TO FILL THE MAJOR PORTION OF THE VOLUME BOUNDED IN PART BY THE CONVEX FACEPLATE SURFACE AND THE CONCAVE SAFETY SHIELD SURFACE, AND CLAMPING THE SAFETY SHIELD RELATIVE TO THE CATHODE RAY TUBE FOR THE HARDENING PERIOD OF THE BONDING MEDIUM.

References Cited (Backward Citations)

US2734142A Cited
US1937396A Cited
US2020178A Cited
US2293529A Cited
US2887424A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1966-01-28 1966-07-30 1967-01-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1970-01-28 1970-07-30 1971-01-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1974-01-28 1974-07-30 1975-01-29 $7700.00 Window Closed / Lapsed

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