Patent US3845530A successfully refreshed from Google Patents.
US3845530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for rendering cathode-ray tube more resistant to implosion and product thereof
Assignee: RCA Licensing Corp
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Filing: 1972-10-10
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Granted: 1974-11-05
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Expires: 1992-10-10
Abstract
Abstract The inner surface of a reinforcing structure adapted to encircle a faceplate panel of the tube is provided with a nontacky coating of a tackifiable, adhesive material. When the tube is ready for reinforcing, the coating is made tacky, as by applying thereto an organic solvent. The reinforcing structure is positioned around the panel with the tacky coating against the panel. Then, with the structure in place, the tackiness is removed from the coating.
Inventors
- 👤 R Platt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:28
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/86; H01J29/87
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
132 words
A METHOD FOR RENDERING A CATHODE-RAY TUBE MORE RESISTANT TO IMPLOSION, SAID TUBE COMPRISING AN EVACUATED ENVELOPE INCLUDING A GLASS FACEPLATE PANEL, SAID METHOD COMPRISING A. PROVIDING A REINFORCING STRUCTURE INCLUDING TWO METAL RIM PLATES CONTOURED TO ENCIRCLE SAID PANEL, THE INNER SURFACE OF SAID RIN PLATES CARRYING A NONTACKY COATING OF AN ADHESIVE MATERIAL THAT CAN BE MADE TACKY BY APPLYING THERETO AN ORGANIC SOLVENT THEREFOR, B. TACKIFYING SAID COATING BY APPLYING THERETO A CONTROLLED AMOUNT OF AN ORGANIC SOLVENT THEREFOR, C. POSITIONING SAID REINFORCING STRUCTURE AROUND SAID PANEL WITH SAID TACKY COATING AGAINST THE OUTER SURFACE THEREOF, D. POSITIONING A METAL BAND AROUND SAID RIM PLATES AND SAID PANEL, E. FIXING SAID POSITIONED BAND TO ITSELF. F. AND THEN DRYING SAID COATING TO ADHERE SAID REINFORCING STRUCTURE TO SAID PANEL.
Claim 2
Independent Claim
132 words
A METHOD FOR RENDERING A CATHODE-RAY TUBE MORE RESISTANT TO IMPLOSION, SAID TUBE COMPRISING AN EVACUATED ENVELOPE INCLUDING A GLASS FACEPLATE PANEL, SAID METHOD COMPRISING A. PROVIDING A REINFORCING STRUCTURE INCLUDING TWO METAL RIM PLATES CONTOURED TO ENCIRCLE SAID PANEL, THE INNER SURFACE OF SAID RIN PLATES CARRYING A NONTACKY COATING OF AN ADHESIVE MATERIAL THAT CAN BE MADE TACKY BY APPLYING THERETO AN ORGANIC SOLVENT THEREFOR, B. TACKIFYING SAID COATING BY APPLYING THERETO A CONTROLLED AMOUNT OF AN ORGANIC SOLVENT THEREFOR, C. POSITIONING SAID REINFORCING STRUCTURE AROUND SAID PANEL WITH SAID TACKY COATING AGAINST THE OUTER SURFACE THEREOF, D. POSITIONING A METAL BAND AROUND SAID RIM PLATES AND SAID PANEL, E. FIXING SAID POSITIONED BAND TO ITSELF. F. AND THEN DRYING SAID COATING TO ADHERE SAID REINFORCING STRUCTURE TO SAID PANEL.
Claim 3
Dependent Claim
15 words
The method defined in claim 1 wherein said adhesive is an organic, polymeric rubber-based material.
Claim 4
Dependent Claim
21 words
The method defined in claim 2 wherein said adhesive is selected from the class consisting of butadienestyrene copolymers and neoprene polymers.
Claim 5
Dependent Claim
22 words
The method defined in claim 1 wherein said organic solvent is selected from the group consisting of toluene, trichloroethylene, and methyl chloroform.
References Cited (Backward Citations)
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US3152950A
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US3456076A
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US3553051A
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US3513056A
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US3508310A
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US3708369A
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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) | 1977-11-04 | 1978-05-06 | 1978-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-04 | 1982-05-06 | 1982-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-04 | 1986-05-06 | 1986-11-05 | $7700.00 | Window Closed / Lapsed |