ES365929A1 - Method of providing an anti-implosion clamping band around the envelope of a picture tube - Google Patents
Method of providing an anti-implosion clamping band around the envelope of a picture tubeInfo
- Publication number
- ES365929A1 ES365929A1 ES365929A ES365929A ES365929A1 ES 365929 A1 ES365929 A1 ES 365929A1 ES 365929 A ES365929 A ES 365929A ES 365929 A ES365929 A ES 365929A ES 365929 A1 ES365929 A1 ES 365929A1
- Authority
- ES
- Spain
- Prior art keywords
- band
- faceplate
- implosion
- tube
- envelope
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000003822 epoxy resin Substances 0.000 abstract 2
- 229920000647 polyepoxide Polymers 0.000 abstract 2
- 230000003014 reinforcing effect Effects 0.000 abstract 2
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract 1
- 239000005864 Sulphur Substances 0.000 abstract 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 239000004202 carbamide Substances 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000009413 insulation Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 229920002689 polyvinyl acetate Polymers 0.000 abstract 1
- 239000011118 polyvinyl acetate Substances 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/86—Vessels; Containers; Vacuum locks
- H01J29/87—Arrangements for preventing or limiting effects of implosion of vessels or containers
Landscapes
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Abstract
A steel anti-implosion clamping band 7 which is initially smaller than the cathode-ray tube faceplate 1 it is to surround, is applied to the tube by first coating the tube with thermal insulation, then heating the band 7 so that it will slide into position, preferably with one edge against a mould match line 17, and then allowing the band to cool and shrink into place. The temperature to which the band is heated may be 450 C. and should be such that on shrinkage the band is tensioned to its yield point in spite of the tolerances in dimensions of the band and of the faceplate. When the band is entirely on the cone side of the mould match line a tensile force of 500-700 Kgm is required, and this may be obtained by reinforcing the band with a separate band 8, or by folding over the edge of the band either outwards or inwards (Figs. 3 and 4, not shown) possibly with a reinforcing band arranged in the fold (Figs. 5 and 6, not shown). The material 6 may be polyvinyl acetate or epoxy resin, and the space at the rear of the band may be filled with adhesive 18 such as epoxy resin, urea or sulphur, which should not extend over the seal 3 between the cone 2 and the faceplate 1.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL686805299A NL154864B (en) | 1968-04-13 | 1968-04-13 | METHOD OF FIXING AN IMPLOSION PROTECTION TAPE ON THE BALLOON OF A TELEVISION PICTURE TUBE AND A TELEVISION PICTURE TUBE MANUFACTURED BY THIS METHOD. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES365929A1 true ES365929A1 (en) | 1971-03-16 |
Family
ID=19803335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES365929A Expired ES365929A1 (en) | 1968-04-13 | 1969-04-11 | Method of providing an anti-implosion clamping band around the envelope of a picture tube |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3708369A (en) |
| AT (1) | AT284217B (en) |
| BE (1) | BE731439A (en) |
| CH (1) | CH489898A (en) |
| DE (1) | DE1913566C3 (en) |
| ES (1) | ES365929A1 (en) |
| FR (1) | FR2006186A1 (en) |
| GB (1) | GB1204109A (en) |
| NL (1) | NL154864B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2173782B1 (en) * | 1972-03-02 | 1974-08-02 | Orega Cifte | |
| US3845530A (en) * | 1972-10-10 | 1974-11-05 | Rca Corp | Method for rendering cathode-ray tube more resistant to implosion and product thereof |
| NL163365C (en) * | 1973-02-12 | 1980-08-15 | Philips Nv | CATHODE JET TUBE WITH IMPLOSION PROTECTION. |
| US5216513A (en) * | 1991-07-31 | 1993-06-01 | Thomson Consumer Electronics, Inc. | Cathode-ray tube having a shrinkfit implosion protection band with faceplate panel compensating means |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2785820A (en) * | 1952-06-28 | 1957-03-19 | Owens Illinois Glass Co | Controlling implosions in cathode ray and other tubes |
| US3260397A (en) * | 1961-02-24 | 1966-07-12 | Philips Corp | Cathode ray tube and method of making same |
| NL126725C (en) * | 1961-04-28 | |||
| GB966206A (en) * | 1961-11-10 | 1964-08-06 | Cie Ind Francaise Tubes Elect | Improvements in or relating to anti-implosion devices for cathode ray tubes |
| US3350154A (en) * | 1964-12-18 | 1967-10-31 | Owens Illinois Inc | Reinforced cathode-ray tube and face plate therefor |
| DE1280424B (en) * | 1965-11-01 | 1968-10-17 | Standard Elektrik Lorenz Ag | Process for sheathing picture tubes with an implosion protection frame and device for carrying out the process |
-
1968
- 1968-04-13 NL NL686805299A patent/NL154864B/en not_active IP Right Cessation
-
1969
- 1969-03-18 DE DE1913566A patent/DE1913566C3/en not_active Expired
- 1969-04-10 CH CH553669A patent/CH489898A/en not_active IP Right Cessation
- 1969-04-10 AT AT347169A patent/AT284217B/en not_active IP Right Cessation
- 1969-04-10 FR FR6911084A patent/FR2006186A1/fr active Pending
- 1969-04-11 BE BE731439D patent/BE731439A/xx unknown
- 1969-04-11 GB GB08652/69A patent/GB1204109A/en not_active Expired
- 1969-04-11 ES ES365929A patent/ES365929A1/en not_active Expired
- 1969-04-14 US US00815579A patent/US3708369A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US3708369A (en) | 1973-01-02 |
| NL154864B (en) | 1977-10-17 |
| DE1913566B2 (en) | 1978-09-14 |
| DE1913566A1 (en) | 1969-10-30 |
| BE731439A (en) | 1969-10-13 |
| GB1204109A (en) | 1970-09-03 |
| NL6805299A (en) | 1969-10-15 |
| DE1913566C3 (en) | 1985-08-01 |
| CH489898A (en) | 1970-04-30 |
| FR2006186A1 (en) | 1969-12-19 |
| AT284217B (en) | 1970-09-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD1A | Patent lapsed |
Effective date: 19890221 |