Cathode ray tube implosion protection system and method
Abstract
Abstract A glass cathode ray tube envelope is provided with implosionprotection means by wrapping the peripheral portion of the envelope adjacent to the faceplate with a piece of fabric impregnated with an uncured thermosetting bonding material (e.g., B-stage epoxy resin), positioning a first steel band around the tape, heating about two-thirds of the band to 200*-250* C., contacting the tape with the band while hot, to bond the tape to the glass envelope and band along about two-thirds of the periphery of the envelope, and tensioning and permanently mounting the band on the envelope by welding the ends together under tension while still hot so that, on cooling, the band tension is increased to a large value, e.g., 1,500 pounds, and then mounting a second steel band on the first band in the same manner as the first band but with the band joint on the opposite side of the envelope, to bond the tape to the envelope and first band along the remaining portion of the periphery thereof.
Inventors
- 👤 Arnis Hildebrants
Bibliographic Details
Claims Analysis
Total Claims: 2References 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) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |