CN1409347A - Ventilation tube for cathode ray tube and forming mold for producing said ventilation tube - Google Patents
Ventilation tube for cathode ray tube and forming mold for producing said ventilation tube Download PDFInfo
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- CN1409347A CN1409347A CN 02143377 CN02143377A CN1409347A CN 1409347 A CN1409347 A CN 1409347A CN 02143377 CN02143377 CN 02143377 CN 02143377 A CN02143377 A CN 02143377A CN 1409347 A CN1409347 A CN 1409347A
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- positioning reference
- reference portion
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- ray tube
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Abstract
A ventilation tube for a cathode ray tube is provided, in which a reference surface of a positioning reference portion is a flat plane continuous from a join mold line to a small diameter opening end side. The reference surface of the positioning reference portion is parallel with a central axes of the ventilation tube, a plane containing the join mold line is formed to be parallel with the central axes of the ventilation tube or formed in a diraction adjacent to the central axes, from the join mold line to the small diameter opening end side.
Description
Technical field
The invention relates to a kind of cathode-ray tube ventilator and make the mold for forming of this ventilator, and particularly be formed at the technology of positioning reference portion of the outside wall surface of cathode-ray tube ventilator main body relevant for a kind of improvement.
Background technology
As everyone knows, the glass valves of cathode-ray tube, by the panel that constitutes front face and show image (panel), at the panel rear with it mutually sealing and externally device the ventilator (funnel) of deflection yoke (yoke) is arranged, and be soldered to this ventilator and constitute in the neck (neck) of interior reservoir nano-electron rifle.
Aforementioned panel, phase place (phase) portion and skirt section (skirt) by the active area of tool display frame are constituted, this skirt section sees through colour mixture (blend) R portion and is connected to phase place portion, and openend is opened in the slightly rectangular expansion that is provided when having sealing phase place portion and panel.Aforementioned skirt section has four limit portions, and everybody is between corner (conner) portion.
As shown in Figure 5, aforementioned ventilator 1 has the slightly rounded path openend 3 that slightly rectangular expansion is opened openend (sealing the margin face) 2 and welded with neck.With tubular axis X is the main part 4 of the ventilator 1 of central axis, and it is opened each main body formation 4a of portion that four corner portions 5 of openend 2 sides exist each other in expansion and is towards the path openend 3 sides shape of undergauge gradually.And aforementioned neck is slightly cylindrical.
In order to obtain the suitable image of no color differnece etc., as cathode ray tube importantly, other central axis of each of panel, ventilator 1 and neck needs correctly locate with assembling with respect to the tubular axis of glass valves.At this, on the outside wall surface of the adjacent main body formation 4a of portion of ventilator 1, be provided with a plurality of (for example three) positioning reference portion 6, be used for when and touch tool during panel sealing, and between this panel, position.This positioning reference portion 6, the datum level 6a of its contact tool has convex at the top.The central axis X of this datum level 6a formation and ventilator 1 is apart from certain distance.
When making ventilator 1, as shown in Figure 6, in the fused glass block of high temperature being supplied to by bed die (bottom die) 7 and chamber mould (sealed mold) 8 master molds that constituted after, descending, (fill in mould, plunger) 9 prolong fused glass block with signature as the signature mould of male model.Then, after fused glass block is shaped to certain shape, rises and give as security mould 9, again chamber mould 8 is taken out, from bed die 7, take out ventilator 1 afterwards again.
In this occasion, the moulding face corresponding to positioning reference portion 6 forms recess on bed die 7, and considers the easiness of taking out ventilators 1 from bed die 7 after the moulding, and it forms the topmost of bed die 7 under the state of open upper part.Therefore, positioning reference portion 6, be present in bed die 7 and the fashionable formation of chamber mould 8 moulds spue line (mold match line) M near.
And, the datum level 6a of the 6a of positioning reference portion, its general rule forms and slightly is parallel with the central axis X of ventilator 1, and the shape of this positioning reference portion 6 for example is the type shown in Fig. 7 A, Fig. 7 B.And, as shown in Figure 8, in the positioning reference portion 6 of above-mentioned arbitrary type, the ora terminalis of sealing the margin face 2 sides of its datum level 6a (below, be called first ora terminalis) 6b, side-prominent outward from spue line M.Relevant therewith, the size L that projects to the first ora terminalis 6b of datum level 6a from spue line M is set at the degree of about 1.5mm～2.5mm.
Above-mentioned outstanding size L, the difference in size that produces during based on the extrusion forming of estimating ventilator 1 and default person.Particularly, the numerical value of the outstanding size L of present situation determines according to operator's experience.Again; in the moulding positioning reference 6a of portion; as shown in Figure 9, slide 21 with the x-y direction slidably mode be embedded in the otch (slit) 20 of the topmost that is formed at bed die 7, with the position of suitably adjusting this slide 21 and guarantee the suitable dimensional accuracy of datum level 6a.This slide 21 is formed with forming surface 21a, with in the datum level 6a of tip moulding positioning reference portion 6.
Yet, as known, make the datum level 6a of positioning reference portion 6 can produce following problem than the side-prominent outward 1.5mm of spue line M～2.5mm degree.
Because, partly partly glass meat is thick too thick than other in the formation of the positioning reference portion 6 of ventilator 1, when the extrusion forming of fused glass block, the hygral equilibrium meeting of positioning reference portion 6 peripheries worsens, may have the possibility that size is bad or be out of shape, and because this positioning reference portion 6 can hinder flowing of melten glass, can be bad at generation defective on glass or breach etc.
In the signature final stage of prolonging of plug mould 9,, also may cause the generation of gauffer etc. because of the flowability of infringement melten glass because by melten glass moulding positioning reference portion 6.
In as aforementioned, using the movable mold for forming of slide 21, when the occasion that slide 21 is moved toward the x direction, form acute angle-shaped gap between the first end of slide 21 and the recess 22 of bed die 7, and, exist minim gap between slide 21 and the otch 21 when making slide 21 toward the occasion that the y direction moves.Cause the reason of this situation, on the contour part of the datum level 6a of positioning reference portion 6, be formed with the microspike of square (square) or the microspike of wire, not only can cause the occurrence cause that breaks etc., also can cause the low or moulding qualification rate of quality to worsen.
Summary of the invention
Purpose of the present invention, a kind of cathode-ray tube ventilator is provided, when the ventilator moulding, can suppress the deterioration of the glass temperature balance of positioning reference portion periphery as best one can, or the deterioration of inhibition glass flow, and can prevent the defective of glass or the generation of breach, can prevent from simultaneously to cause the generation of the mobile impaired gauffer etc. of melten glass.
For reaching above-mentioned purpose, the invention provides a kind of cathode-ray tube ventilator, comprising: a main part, a spue line and a location benchmark portion.Main part has an expansion and opens openend, and is slightly rectangular, is formed on an end of main part, and a path openend, slightly rounded, is formed on the other end of this main part.Spue line by mould unification mold for forming be formed on expand open openend near.Positioning reference portion is formed on the outside wall surface of main part, the location when using ventilator in order to sealing cathod ray tube.Wherein a datum level of positioning reference portion is a tabular surface, from spue line continuously to the path open end side.
Structure according to this, because the datum level of positioning reference portion forms from the continuous tabular surface of spue line (comprising slightly tabular surface), in other words, because the first ora terminalis of datum level is consistent with spue line, its first ora terminalis that does not just have datum level as known is from the side-prominent outward situation of spue line.Therefore, the formation of the positioning reference portion of ventilator partly can be thick more not blocked up than other glass meat partly, thereby thereupon when extrusion forming, the hygral equilibrium of positioning reference portion periphery is very good, can avoid the problem of bad or distortion of the size of positioning reference portion periphery etc.Again, because the existence of this positioning reference portion can reach the mobile obstacle despite melten glass, so can reduce the defective of glass or the incidence of breach significantly.
And, in the final stage that the signature of mold for forming is prolonged, be not limited to by melten glass moulding positioning reference portion, because shape complexity unlike known of its positioning reference portion periphery, can significantly lower the incidence of gauffer, even melten glass is mobile impaired, can not make it become the essential factor that mouldability worsens yet.
In this occasion, this datum level and the ventilator central axis of positioning reference portion parallel, and with respect to a plane that comprises spue line,, form with the ventilator central axis and parallel or be formed on the direction near central axis towards toward the path open end side from spue line.That is, preferably, be non-outstanding state for this plane.It is described in detail in detail, though the datum level of positioning reference portion forms with the ventilator central axis and parallels, yet, viewpoint by the good withdrawing pattern of ventilator mold for forming, preferably, parallel with the ventilator central axis and to comprising the plane of spue line, only from away from state outstanding on the direction of ventilator central axis.In this way, when from mold for forming, taking out ventilator, can prevent scratch etc. bad on the datum level of benchmark portion really.
And, this datum level of positioning reference portion, preferably, by being integrally formed in the moulding face on the outside wall surface of main part that should mold for forming with moulding.In this way, because, on moulding face, can as known moving die, not have the gap corresponding to the positioning reference portion of mold for forming, so on the contour part of datum level, can not form the square microspike portion or the microspike portion of wire, thereby can suppress to break or the generation of breach, and can seek the improvement of quality or the improvement of pass rate.
More near the datum level of positioning reference portion, set up a mark.This mark, for example, can be by near the certain place the datum level be imposed the etching that utilizes acid corrosion, or sand-blast etc., make the surface roughness near the surface roughness in the certain place the datum level and other position different.In this way, even, when the very short and blurring of vision of the side-prominent outward size in the formation position of positioning reference portion shows, still can utilize mark to identify clearly, hereat, can avoid effectively in the leakage of the contraposition operation of sealing ventilator.
The present invention more proposes a kind of shaping dies, has as described above from the cathode-ray tube ventilator of the positioning reference portion of the datum level of the continuous tabular surface of spue line in order to moulding, comprises a master mold and a male model.Master mold has a bed die, is formed with a forming surface, corresponding to this outside wall surface of main part, and a chamber film, be formed with a forming surface, open openend corresponding to expansion, and a fused glass block is supplied in the master mold.Male model prolongs fused glass block relatively near master mold with signature.Wherein, corresponding to a moulding face of positioning reference portion, integrally formed to forming surface corresponding to the bed die of the outside wall surface of main part.
Structure according to this, on the forming surface of bed die, the part moulding face that the datum level of positioning reference portion is used is continuous from the part of closing with chamber pattern corresponding to spue line, the moulding face that integrally formed in this way positioning reference portion uses.Therefore, if use the words of this mould with the moulding ventilator, because can as the occasion of the movable bed die of known use, on the moulding face that positioning reference portion uses, not have the gap, so, on the contour part of the datum level after the moulding, can not form square microspike portion etc., thereby can suppress to break or the generation of breach etc., can seek the improvement of quality or the improvement of moulding qualification rate simultaneously.
For above and other objects of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and cooperate appended graphicly, elaborate.
Description of drawings
Fig. 1 illustrates all structure oblique views according to the cathode-ray tube ventilator of preferred embodiment of the present invention.
Fig. 2 illustrates Fig. 1 and indulges disconnected side view along the portion's expansion of wanting of b-b hatching line.
What Fig. 3 A, Fig. 3 B illustrated positioning reference portion wants portion's general positive map;
Fig. 4 illustrate according to the cathode-ray tube ventilator of preferred embodiment of the present invention and make this ventilator mold for forming want the vertical disconnected side view of portion.
Fig. 5 illustrates all structure oblique views of known cathode-ray tube ventilator.
Fig. 6 illustrate the cathode-ray tube ventilator of known example and make this ventilator mold for forming want the vertical disconnected side view of portion.
What Fig. 7 A, Fig. 7 B illustrated known positioning reference portion respectively wants portion's general positive map.
Fig. 8 illustrates Fig. 5 and indulges disconnected side view along the portion's expansion of wanting of B-B hatching line.
Fig. 9 illustrate known cathode-ray tube ventilator and make this ventilator mold for forming want portion's cross-sectional plan.Label declaration
1: ventilator 2: expand and open openend (sealing the margin face)
3: path openend 4: main part
4a: main body formation portion 5: corner portion
6: the 6a of positioning reference portion: datum level
6b: the ora terminalis of sealing the margin face side (first ora terminalis)
6x: mark 6z: erection part
7: bed die 7a: face hangs down
7z: inclined plane 8: chamber mould
9: give as security mould (plug mould) 10: die device
11: master mold 20: otch
21: slide 21a: forming surface
22: recess M: spue line
X: tubular axis (central axis of ventilator 1)
X1: the imaginary plane that comprises spue line M
Embodiment
Below, according to Fig. 1～Fig. 4 preferred embodiment of the present invention is described.And in Fig. 5～Fig. 9, it uses prosign to the common member that had illustrated, its explanation omission.
Image pattern 1 is such, according to the negative electrode of preferred embodiment of the present invention penetrate effective ventilator 1 (below, only be referred to as with ventilator), have positioning reference portion 6, lay respectively at two places of the adjacent main body formation 4a of portion one avris of double team one corner portion 5 and a place of other avris.The datum level 6a of this a little positioning reference portion 6 is a tabular surface, and for not impose grinding (polishing) or to grind the non-face that grinds of cutting machinings such as (grinding), this tabular surface forms continuously from spue line M toward path openend 3 sides.
And, the datum level 6a of positioning reference portion 6, parallel with the central axis X of ventilator 1 as shown in Figure 2, and with respect to the imaginary plane X1 that comprises spue line M in not side-prominent outward scope, its formation slightly is parallel with aforementioned central axis X.Therefore, the datum level 6a of positioning reference portion 6, its first ora terminalis 6b is consistent with spue line M, and the region-wide of positioning reference portion 6 lacked than the 1.5mm of known Fig. 3 A shown type and the 2.5mm of Fig. 3 B shown type from the side-prominent outward size of the main body formation 4a of portion outside wall surface.
In this occasion, the main body formation 4a of the portion outside wall surface of ventilator 1 is opened openend 2 migration path openends 3 sides from expansion continuously.The angle of considering ventilator central axis X and above-mentioned imaginary plane X1 is a relation that relaxes, if as described above the datum level 6a of positioning reference portion 6 is formed on words on the spue line M continuously, compare to separating the occasion that forms positioning reference portion 6 with path openend 3 sides from spue line M with hypothesis, the former can shorten the side-prominent outward size of the region-wide main body formation 4a of portion outside wall surface from positioning reference portion 6.
As shown in Figure 3A, near the datum level 6a of positioning reference portion 6, in detail, be near the left and right sides (along the both sides of sealing the margin face 2) of the positioning reference portion 6 of the main body formation 4a of portion outside wall surface, with the mark 6x of lengthwise (size long) with central axis X parallel direction tool.This mark 6x, by above-mentioned place being imposed the etching (etching) that utilizes acid corrosion, or sand-blast (sand blast) etc., make the surface roughness in above-mentioned place different with other local surface roughness of the main body formation 4a of portion outside wall surface.And, be not limited near the left and right sides of positioning reference portion 6 with the place of mark 6x, also alternately mark 6x be attached to positioning reference portion 6 path openend 3 sides near.Similarly, also can near the positioning reference portion 6 of Fig. 3 B shown type, enclose mark 6x again.
Add, shown in Fig. 3 A, Fig. 3 B, with respect to the datum level 6a of positioning reference portion 6, from the main body formation 4a of portion outside wall surface level and smooth up erection part 6z and the known example shown in Fig. 7 A, Fig. 7 B compare, the width of the former belt-like zone can be narrower.That is, if with the datum level 6a of the positioning reference portion 6 of this embodiment and the words that known example shown in Figure 8 is compared, because of it is not positioned at the position more side-prominent more outward than spue line M, datum level 6a also can be tailed off in the zone of the level and smooth continuous erection part 6z of the main body formation 4a of portion of ventilator 1 outside wall surface.Therefore, even the area of datum level 6a is identical, the formation region area of the positioning reference portion 6 of this embodiment is narrower and small than known example.
Such as described above, the main body formation 4a of the portion outside wall surface of ventilator 1, open openend from expansion and travel to path openend 3 sides continuously, the angle of considering ventilator central axis X and imaginary plane X1 is the relation of easing up, datum level 6a by positioning reference portion 6 is continuously to spue line M, can enjoy needn't forming the expansion that makes datum level 6a and opening the advantage of openend 2 sides in the continuous part of the level and smooth continuous erection part of main body formation portion 4 outside wall surface etc.On the contrary, suppose from spue line M to and path openend 3 sides separate the occasion of formation positioning reference portion 6, need make the expansion of datum level 6a open openend 2 sides, so have the unfavorable inconvenience that designs and produces complexity etc. of the forming surface of mold for forming 10 in the level and smooth continuous continuous part of the main body formation 4a of portion outside wall surface.
On the other hand, manufacturing is according to the mould 10 of the ventilator 1 of preferred embodiment of the present invention, as shown in Figure 4, having by supply has the bed die (bottom die) 7 of fused glass block and is provided in the master mold 11 of chamber mould (sealed mold) 8 formations that going up of this bed die 7 can oscilaltion, and can be equipped with to oscilaltion the signature mould (plug mould) 9 as male model on master mold.Then, contact or slightly touch under the state of bed die 7 upper ends,, shown in figure, give as security and prolong fused glass block by the plug mould 9 that descends at sealed mold 8, whereby, to carry out the extrusion forming engineering of ventilator 1.
Aforementioned bed die 7, Yi Bian have the forming surface of the outside shape of regulation ventilator 1, aforementioned plug mould 9 has the forming surface of the interior shape of regulation ventilator 1.And, aforementioned cavities mould 8, the forming surface of openend 2 is opened in the expansion with regulation ventilator 1.
Then, on the forming surface of aforementioned bed die 7, partly 12 being integrally formed in two places of the facial side on one side of moulding of double team corner portion adjacency and a place of other avris with forming surface corresponding to the benchmark portion of the positioning reference portion 6 of ventilator 1.On ora terminalis on the forming surface of this bed die 7, the following ora terminalis of the forming surface of sealed mould 8 can be and is close or away from state, and ora terminalis and following ora terminalis form same contour shape on this.And said reference portion is with forming surface 12 the position corresponding to the datum level 6a of positioning reference portion 6 partly, makes the face that the hangs down 7a that slightly hangs down from the last ora terminalis of the forming surface of bed die 7.And the above-mentioned in succession left and right sides of face 7a and the inclined plane of downside (or flexure plane) 7z of hanging down made at the position of the erection part 6z of corresponding positioning reference portion 6.
Use this die device 10 with ventilator 1 extrusion forming, it descends plug mould 9 after fused glass block is supplied to bed die 7, as shown in Figure 4, utilizes bed die 7, sealed mould 8 and plug mould 9 to prolong the shape that is shaped to ventilator 1 so that fused glass block is given as security.Then, after its moulding, plug mould 9 is risen, and after sealed mould 8 was risen, cooling channel tube 1 took out it from bed die 7 again, put between at this moment and finish the extrusion forming engineering.Whereby, to get above-mentioned ventilator 1 as shown in Figures 1 and 2.
When this extrusion forming, fused glass block is accompanied by the following moving of plug mould 9 and prolongs with signature, and swashes along the forming surface of bed die 7, to arrive moulding facial 7a, the 7z of corresponding positioning reference portion 6.When arriving this moulding facial 7a, 7z, because of the flowability of fused glass block is impaired state, cause this reason to be, easily produce the state of gauffer during the moulding of positioning reference portion 6.Yet, corresponding to the amount of recess of facial 7a, 7b of the moulding of positioning reference portion 6, lack and its shape and uncomplicated, thereby can swash the incidence that subtracts gauffer etc. than known.And, can relax the deterioration of glass temperature balance of the facial 7a of moulding, the 7z periphery of corresponding positioning reference portion 6, thereby can suppress bad generation such as the bad or distortion of the size of positioning reference portion 6 peripheries.Again, the existence of the moulding of corresponding positioning reference portion 6 facial 7a, 7z, flowing of fused glass block is interrupted hardly, thereby can seek the improvement of mouldability.
Corresponding to the moulding of positioning reference portion 6 facial 7a, 7z, the central axis that is parallel to bed die 7, and for comprising the plane that bed die 7 and sealed mould 8 moulds close inside cord (corresponding to spue line M) partly, because its not from the central axis of bed die 7 toward away from direction stretch out, the withdrawing pattern of glass is very good when bed die 7 takes out ventilators 1, and can avoid causing the scratch etc. of datum level 6a of positioning reference portion 6 bad.And, facial 7a, 7z are integrally formed on the forming surface of bed die 7 corresponding to the moulding of positioning reference portion 6, so, can as known, when using movable bed die, not have the gap, on the contour part of datum level 6a, can not be formed with the square microspike or the microspike of wire yet.
And, after the extrusion forming, in near zone around the positioning reference portion 6 of ventilator 1, by imposing above-mentioned etching etc., near the datum level 6a that mark 6x is attached to positioning reference portion 6, be the state that blurring of vision shows even the outstanding size in the outside of past positioning reference portion 6 is very short, still can identify the position that forms of positioning reference portion 6 clearly by mark 6x.Whereby, when making the contraposition operation of ventilator 1 and panel sealing, can avoid producing operation shortcoming because of the formation position of failing to grasp positioning reference portion 6.And the surface roughness of other forming surface around the moulding of the positioning reference portion 6 by making corresponding bed die 7 facial 7a, the 7z beyond the surface roughness of near zone and these scopes is different, can enclose this mark 6x when extrusion forming.
Claims (10)
1, a kind of cathode-ray tube ventilator is characterized in that: comprising:
One main part has an expansion and opens openend, and is slightly rectangular, is formed on an end of this main part, and a path openend, slightly rounded, is formed on the other end of this main part;
One spue line, by mould unification mold for forming be formed on this expansion open openend near;
One location benchmark portion is formed on the outside wall surface of this main part, the location when sealing this cathode-ray tube ventilator,
Wherein a datum level of this positioning reference portion is a tabular surface, from this spue line continuously to this path open end side.
2, cathode-ray tube ventilator as claimed in claim 1, it is characterized in that: this datum level of this positioning reference portion, parallel with this ventilator central axis, and with respect to a plane that comprises spue line,, form and this ventilator central axis parallels and is formed near alternatively on the direction of this central axis towards toward this path open end side from this spue line.
3, cathode-ray tube ventilator as claimed in claim 1 is characterized in that: this datum level of this positioning reference portion, and by being integrally formed in the moulding face on this outside wall surface of this main part that should mold for forming with moulding.
4, cathode-ray tube ventilator as claimed in claim 2 is characterized in that: this datum level of this positioning reference portion, and by being integrally formed in the moulding face on this outside wall surface of this main part that should mold for forming with moulding.
5, cathode-ray tube ventilator as claimed in claim 1 is characterized in that: near this datum level of this positioning reference portion, set up a mark.
6, cathode-ray tube ventilator as claimed in claim 2 is characterized in that: near this datum level of this positioning reference portion, set up a mark.
7, cathode-ray tube ventilator as claimed in claim 3 is characterized in that: near this datum level of this positioning reference portion, set up a mark.
8, cathode-ray tube ventilator as claimed in claim 4 is characterized in that: near this datum level of this positioning reference portion, set up a mark.
9, a kind of mold for forming in order to moulding cathode-ray tube ventilator as claimed in claim 1, is characterized in that: comprising:
One master mold has a bed die, is formed with a forming surface, corresponding to this outside wall surface of this main part, and a chamber film, be formed with a forming surface, open openend corresponding to this expansion, and a fused glass block is supplied in this master mold;
One male model relatively near this master mold, prolongs this fused glass block with signature,
Wherein, corresponding to a moulding face of this positioning reference portion, integrally formed to this forming surface corresponding to this bed die of this outside wall surface of this main part.
10, a kind of mold for forming in order to moulding cathode-ray tube ventilator as claimed in claim 2, is characterized in that: comprising:
One master mold has a bed die, is formed with a forming surface, corresponding to this outside wall surface of this main part, and a chamber film, be formed with a forming surface, open openend corresponding to this expansion, and a fused glass block is supplied in this master mold;
One male model relatively near this master mold, prolongs this fused glass block with signature,
Wherein, corresponding to a moulding face of this positioning reference portion, integrally formed to this forming surface corresponding to this bed die of this outside wall surface of this main part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02143377 CN1409347A (en) | 2001-09-28 | 2002-09-26 | Ventilation tube for cathode ray tube and forming mold for producing said ventilation tube |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP200130096 | 2001-09-28 | ||
| CN 02143377 CN1409347A (en) | 2001-09-28 | 2002-09-26 | Ventilation tube for cathode ray tube and forming mold for producing said ventilation tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1409347A true CN1409347A (en) | 2003-04-09 |
Family
ID=4750469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02143377 Pending CN1409347A (en) | 2001-09-28 | 2002-09-26 | Ventilation tube for cathode ray tube and forming mold for producing said ventilation tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1409347A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1753145B (en) * | 2005-11-09 | 2011-02-16 | 河南安彩高科股份有限公司 | Large screen glass cone for colour cathode ray tube |
-
2002
- 2002-09-26 CN CN 02143377 patent/CN1409347A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1753145B (en) * | 2005-11-09 | 2011-02-16 | 河南安彩高科股份有限公司 | Large screen glass cone for colour cathode ray tube |
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| CI01 | Correction of invention patent gazette |
Correction item: Priority Correct: 2001-300968 False: 2001-30096 Number: 15 Page: 221 Volume: 19 |
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| CI02 | Correction of invention patent application |
Correction item: Priority Correct: 2001-300968 False: 2001-30096 Number: 15 Page: The title page Volume: 19 |
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| COR | Change of bibliographic data |
Free format text: CORRECT: PRIORITY; FROM: 2001-30096 TO: 2001-300968 |
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| ERR | Gazette correction |
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| C20 | Patent right or utility model deemed to be abandoned or is abandoned |