US3605227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing an implosion-free display tube
Assignee: US Philips Corp
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Filing: 1969-05-19
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Granted: 1971-09-20
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Expires: 1989-05-19
Abstract
Abstract A METHOD OF MAKING AN IMPLOSITION-FREE DISPLAY TUBE BY FITTING AN ANNULAR CLAMPING STRAP AROUND THE OUTER PERIPHERY OF THE BULB. THE STRAP HAS AN INNER PERIPHERY EQUAL TO OR GREATER THAN THAT OF THE BULB. BY PRESSING WEDGE-SHAPED SPACING MEMBERS IN THE CORNERS BETWEEN THE STRAP AND THE BULB TO STRETCH THE STRAP, UNIFORM TENSILE STRESSES ARE PROVIDED WITHIN THE STRAP. SECURING THE MEMBERS AND STRAPS TO THE BULB BY MEANS OF AN ADHESIVE COMPLETES THE PROCESS. OTHER SPACING MEMBERS MAY BE USED TO STRETCH THE STRAP IN THE FLAT SECTIONS OF THE TUBE.
Inventors
- 👤 Willem Fokko Nienhuis
- 👤 Georg Arnold Spanhoff
- 👤 Jacob Willem
- 👤 Klaus Boke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:33
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/86; H01J29/87; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863
Claims Analysis
Total Claims: 0
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References 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) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |