CN101143356B - Foam applying device - Google Patents
Foam applying device Download PDFInfo
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- CN101143356B CN101143356B CN200710047713A CN200710047713A CN101143356B CN 101143356 B CN101143356 B CN 101143356B CN 200710047713 A CN200710047713 A CN 200710047713A CN 200710047713 A CN200710047713 A CN 200710047713A CN 101143356 B CN101143356 B CN 101143356B
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Abstract
The present invention is a foam applied device which includes a foam transportation part and a foam application part. The foam transportation part includes distribution joints, one ends of which are connected with a foam input main pipe. The other ends are connected with a plurality of transportation pipes of equal length. The foam application part includes a foam distribution box. Vertically arranged foams are formed on one side of the foam distribution box and are transported into the joints. The other ends of the foam transportation pipes are connected with the foam input joint to be communicated with the inside of the foam distribution box. Vertically extended foam distribution slits are formed on the other side of the foam distribution box. A plurality of foam applied distribution areas corresponding to the foam input joints are formed between the foam input joints and the foam distribution slits. The biggest path difference between the foam input joints and the foam distribution slits is less than a predetermined error range. The device has the advantages of simple process and convenient fabrication and can satisfy the even application requirement at the same time.
Description
Technical field
The present invention relates to a kind of foam applying device, the device on the constructed products is organized on plane such as especially a kind of textile that can equably foam be applied to continuous processing, paper, nonwoven, leather.
Background technology
Traditional textile printing and dyeing processing comprises that mercerising, dyeing, arrangement are processed with stamp all to use water as medium to come the diluted chemical product.So just certainly will cause product tape water yield height in process.General band liquid measure is at 50%-150% even higher, just will be on 100 kilograms of products with 50 kilograms to 150 kilograms in the mixture of chemicals and water, and finally these moisture are will be by oven dry and chemicals is stayed the surface reaching desired effect, as dyestuff or coating colouring, waterproofing agent, softening agent processing etc.The wasteful energy of process of oven dry.And replace water as medium to come the diluted chemical product by air, the foamover chemicals also is applied to product surface, the band liquid measure of fabric is lowered greatly can reach 10%-50%, in drying course, saved the energy greatly, can effectively substitute the mode of traditional a large amount of water processing, and reduce sewage discharge.But be applied to foam on the cloth cover of continuous motion or other planar products that moves continuously equably is to hinder a great problem that the foam mode is processed always.Main cause be exactly foam apply inhomogeneous.
Traditional foam is applied with following several mode.
Shown in Fig. 9-10, mode one is that a foam distributor disk 70 is set above cloth cover 60.Offer foam accumulator tank 72 on the foam distributor disk 70, foam pipeline 71 stretches into from foam accumulator tank 72 tops.Laterally move along foam accumulator tank 72 adding man-hour foam pipeline 71, thereby foam is applied on cloth cover 60 or other planar products from the bottom of foam accumulator tank 72.
Because foam is constantly decay in applying process, foam pipeline 71 move cause in the foam accumulator tank 72 near the part of foam pipeline 71 mouths of pipe different with foam freshness away from the part of the mouth of pipe.Simultaneously, because foam pipeline 71 is laterally to move, the chemical concentration on cloth cover 60 is the S shape and distributes.As foam is that dyestuff or coating foam will cause distribution of color inhomogeneous, causes S shape vitta, can't finish level dyeing or coloring process, and other chemical process then causes chemicals inhomogeneous at product surface.
As shown in figure 11, mode two is to connect three or more pipelines 81 on foam distributor disk 80, and foam flows in the foam distributor disk 80 from this pipeline 81 equably, and then is applied on cloth cover or other planar products.Simultaneously on each pipeline 81, the flow that valve 82 is controlled foam is set.
Because foam applies from three or many pipelines, the path that the foam in each pipeline is applied on the product is inconsistent, therefore also can cause the decay of foam inconsistent, and the inconsistent chemicals that will cause of decaying is strip in the transversely distribution of product.When foam is dyestuff or coating foam, will cause distribution of color inhomogeneous, cause strip inhomogeneous, can't finish level dyeing or coloring process; Chemicals then causes and form the strip distribution on product.Though in the valve controllable flow amount of every pipeline of control, flow can not determine the path that foam flows, and can not address the above problem.
U.S. Pat 6,797,116 have disclosed a kind of method of foam formation to the institutional framework product that apply.Its principle is that foam passes through a parabolic shape interlayer cavity motion, and the path one of the foam operation of any point causes the foam attenuation unanimity and evenly laterally applying.This kind method can effectively solve the uniform distribution of foam on the article of apparent motion.
But the parabola interlayer cavity geometry complexity in this device, processing is difficulty comparatively, in the manufacture process, to the required precision of the smooth degree of steel plate, processing all than the higher error that causes easily, as can not then causing cavity inner foam RT inconsistent according to ideal form processing applicator, it be inhomogeneous finally can to cause foam to apply.
In addition, because textile, or the article that need foam processing may need to change adding the man-hour width at every turn, this installs each machining object that can only adapt to a kind of width, process other width as need, need change other width again and execute the bubble device, the production limitation is bigger.
Summary of the invention
For this reason, main purpose of the present invention provides a kind of foam applying device, and it is simple in structure, easy to process and can reach the sufficiently high precision that evenly applies.
Another object of the present invention provides a kind of foam applying device that can regulate foam output width.
For reaching above-mentioned purpose, the invention provides a kind of foam applying device, comprise foam delivery portion and foam applying unit, wherein said foam delivery portion comprises the foam distribution joint, this foam distribution joint one end connects foam input house steward, the other end connects first end of the foam pipeline that many length and diameter all equate respectively, arrives the output centre distance of each foam pipeline on the foam distribution joint at the input center on the foam distribution joint from described foam input house steward and equates respectively; Described foam applying unit comprises the foam distributor disk, foam distributor disk one side forms the foam input adapter of longitudinally arranging, the internal communication with the foam distributor disk thereby second end of each foam pipeline is connected with the foam input adapter, the continuous foam that the opposite side of foam distributor disk forms longitudinal extension distributes slit, the respectively a plurality of and corresponding foam of foam input adapter applies and distributes the district to be formed between foam input adapter and the foam distribution slit, described foam applies and distributes district (28) to comprise the bending zone, bottom (24) that a cross section is the zone of isosceles triangle (25) and forms along the triangle base, described bending zone, bottom (24) is made up of ascent stage (24A) and descending branch (24B), foam distributes the bottom of slit (23) corresponding to descending branch (24B), is definite value along the interior path of the delta-shaped region on the foam travel path (25) (MP) with bending district (24) interior path (PN) sum wherein.
According to another embodiment, the invention provides a kind of foam applying device, comprise foam delivery portion and foam applying unit, wherein said foam delivery portion comprises the first foam distribution joint, this foam distribution joint one end connects foam input house steward, the other end connects first end of first foam pipeline that many length and diameter all equate respectively, arriving the output centre distance of each foam pipeline on the foam distribution joint at the input center on the foam distribution joint from described foam input house steward equates respectively, and a plurality of second foam distribution joint, one end of each second foam distribution joint is connected with second end of each first foam pipeline, the other end connects first end of second foam pipeline that many length and diameter all equate respectively, arrives each second foam pipeline output centre distance on the second foam distribution joint at the input center on the second foam distribution joint from described second foam pipeline and equates respectively; Described foam applying unit comprises the foam distributor disk, foam distributor disk one side forms the foam input adapter of longitudinally arranging, the internal communication with the foam distributor disk thereby second end of each second foam pipeline is connected with the foam input adapter, the continuous foam that the opposite side of foam distributor disk forms longitudinal extension distributes slit, the respectively a plurality of and corresponding foam of foam input adapter applies and distributes the district to be formed between foam input adapter and the foam distribution slit, described foam applies and distributes district (28) to comprise the bending zone, bottom (24) that a cross section is the zone of isosceles triangle (25) and forms along the triangle base, described bending zone, bottom (24) is made up of ascent stage (24A) and descending branch (24B), foam distributes the bottom of slit (23) corresponding to descending branch (24B), is definite value along the interior path of the delta-shaped region on the foam travel path (25) (MP) with bending district (24) interior path (PN) sum wherein.
Preferably, above-mentioned foam distribution joint is cylindrical, and foam input house steward is positioned at the circle centre position of foam distribution joint end face, and foam pipeline is connected on its periphery.
Above-mentioned foam distributes between the district and separated by spacer block, and is not connected.
Above-mentioned foam input adapter is provided with valve.
Above-mentioned foam pipeline is made by chemicals-resisting material.
The radical of above-mentioned foam pipeline is the 4-20 root.
The present invention adopts to form a plurality of foams apply and distribute the district to make the path unanimity that foam applies in the foam distributor disk, this foam applies isosceles triangle or the additional bending of the isosceles triangle district that the structure of distributing the district can adopt simple shape, its processing is simple, easily manufactured, and can satisfy even application requirement simultaneously.
And, because the present invention can adopt the mode of multistage distribution, more foam pipeline and foam can be set on the foam distributor disk apply the distribution district, thereby can further improve the uniformity that applies.
Moreover, be provided with valve in the joint of foam distributor disk, can open and close valve as required, thereby can regulate the width that foam applies, and needn't make or change other foam distributor disks separately.
Description of drawings
Fig. 1 is the front view of foam applying device preferred embodiment of the present invention.
Fig. 2 A is the preferred embodiment schematic diagram of spirality foam pipeline.
Fig. 2 B is another preferred embodiment schematic diagram of spirality foam pipeline.
Fig. 3 is the partial sectional view of foam distributor disk in the foam applying device shown in Figure 1.
Fig. 4 be in the foam distributor disk shown in Figure 2 along A-A to cutaway view.
Fig. 5 is the sectional block diagram of foam distributor disk shown in Figure 2 along the B-B line.
Fig. 6 applies the schematic cross-section that distributes the district for foam.
Fig. 7 A is that foam applies the schematic cross-section that distributes another embodiment of district.
Fig. 7 B is the cutaway view of Fig. 7 A along the C-C line.
Fig. 8 is the schematic diagram of the multipole conveying form of the present invention.
Fig. 9 applies the schematic diagram of mode for existing first kind of foam.
Figure 10 applies the stereogram of mode for existing first kind of foam.
Figure 11 applies the schematic diagram of mode for existing second kind of foam.
The specific embodiment
As shown in Figure 1, foam applying device of the present invention comprises a foam delivery portion 1 and a foam applying unit 2.This foam delivery portion 1 comprises a foam distribution joint 10, and the one end is connected with foam maker (not shown) by foam delivery house steward 11, and the other end is connected with first end of many foam pipelines 12.In the present embodiment, foam distribution joint 10 is cylindrical, and foam delivery house steward 11 is in the home position of end face, is provided with at its side face and distributes delivery outlet 13, connects for each foam pipeline 12.Like this, the path that the foam that flows into from delivery main 11 arrives each foam pipeline 12 is identical, guarantees unanimity die-away time.
But this foam distribution joint 10 is not limited to above-mentioned form, and the distance of center circle that the center of circle that only need respectively distribute delivery outlet 13 and foam are imported house steward 11 can make foam attenuation time unanimity from the consistent effect that can reach each dispensing head inlet pressure unanimity.For example, distribute delivery outlet can be arranged on the bottom surface, but not side face, the distribution joint cross section also can be rectangle, polygon or other shape.
The diameter of section of each foam pipeline 12 equates that quantity is preferably the 4-20 root, is preferably 9.Each foam pipeline 12 from distribution joint 10 to the equal in length between the foam applying unit 2.
Because to the air line distance difference between the foam applying unit 2, foam pipeline 12 can be made flexible flexible pipe with flexible material, for example plastic flexible pipe or stainless steel flexible hose from distribution joint 10.Can guarantee the equal in length of each foam pipeline 12 like this, thereby make foam flow to the path unanimity of foam applying unit 2 from distribution joint 10.In the preferred embodiment shown in Fig. 2 A, each foam pipeline 12 ' is made into telescopic helical form (only signal demonstration among the figure, not complete drawing), thereby is more convenient for controlling length and is connected.
In another preferred embodiment, foam pipeline 12 also can be without the flexible material manufacturing, and make with rigid material, wherein the short foam pipeline 12 (near middle place) of air line distance is made helical form, and the long foam pipeline 12 (near the place, two ends) of air line distance is near linearity, shown in Fig. 2 B.
No matter be the character that flexible material or rigid material all should possess chemicals-resistant.
Shown in Fig. 3,4 and 5, foam applying unit 2 comprises a foam distributor disk 20.Second end of foam pipeline 12 is connected with the foam input adapter 21 of these foam distributor disk 20 1 sides, and being connected with the inner space of foam distributor disk 20 makes foam flow into this foam distributor disk 20.Form foam at foam distributor disk 20 inner these foam input adapters 21 relatively and apply distribution district 25.This foam applies and distributes the cross section in district 25 to be isosceles triangle, as Fig. 3 and shown in Figure 6.Each foam applies to distribute between the district 25 and is separated by the spacer block 22 that is del, is not communicated with mutually.Foam apply distribute district 25 below longitudinally offer foam and apply slit 23.This slit 23 longitudinally is continuous, is not subjected to the influence of spacer block 22, does not longitudinally have interruption to guarantee the foam that is applied.The foam that flows into from foam input adapter 21 applies through foam and distributes district 25 to apply the slit 23 from foam to gush out.Because be subjected to the constraint of spacer block 22, foam can only arrive the slit 23 be at the bottom of the triangle along the path in this isoceles triangle shape zone, as shown in Figure 5.Though distribute the length outline of the mid portion (position of isoceles triangle form height) in district 25 to be shorter than two side portions (position on isosceles triangle limit), cause the Actual path that arrives slit 23 also not quite identical, but under the less situation of the angle of isosceles triangle drift angle, actual height and poor (maximum differences between all paths) between the limit are minimum, can ignore in the error allowed band.
The error range that allows can change according to the requirement of actual product.By instruction of the present invention, those of ordinary skill in the art is easy to determine according to predetermined allowable error scope the parameters such as the length of side, height and drift angle angle of this isoceles triangle shape, thereby further determines the parameters such as quantity of foam pipeline.
In another preferred embodiment, shown in Fig. 7 A, 7B, the foam in the foam distributor disk 20 applies and distributes district 28 to comprise isosceles triangle district 25 ' and bending district, bottom 24.Fig. 7 B is depicted as this foam among Fig. 7 A and applies and distribute the central cross-section of district along the C-C line, after foam arrives the bottom P point in triangle distribution district 25 ', ascent stage 24A along bending district 24 flows upward to peak Q earlier earlier, and then flows to slit 23 downwards along descending branch 24B, i.e. minimum point N.
For the path that makes the foam process equates everywhere, then apply the inlet point M that distributes district 28 and arrive path (length in the delta-shaped region) that triangular base P order and add that the total length that arrives N point path on the slit 23 (bend and distinguish interior length) from P point should equate throughout from foam.The air line distance that applies both sides arrival slit 23 in distribution district at foam is the longest, and therefore the length in the bending district 24 that should locate is the shortest, and it is the shortest that central part arrives the air line distance of slit 23, bends district's 24 length maximums.Be that MP+PN is a definite value.
In a preferred embodiment, this definite value is for M being the long R of waist (being the longest air line distance that foam arrives slit) in the isosceles triangle distribution district on summit.With M is the center of circle, and R is a radius, and it is fan-shaped that the drift angle of isosceles triangle is that central angle can constitute an imagination, and the fan-shaped circular arc 30 of this imagination is shown in the double dot dash line among Fig. 7 A.Some the paths that foam is passed through have been shown among Fig. 7 A, path with central part is an example, the paths that foam arrives slits 23 (N point) from isosceles triangle bottom P point through bending district 24 equal from the distance of the intersection point O of arrival of P point and imaginary circular arc 30, i.e. PN=PO.And the distance of PN be ascent stage length PQ and descending branch length QN and, i.e. PN=PQ+QN.Preferably, ascent stage length and descending branch equal in length, i.e. PQ=QN.
Similarly, the path of other parts also satisfies the above-mentioned relation formula.That is,
P’N’＝P’O’＝P’Q’+Q’N’；
P”N”＝P”O”＝P”Q”+Q”N”；
P ' " N ' "=P " O "=P " Q "+Q " N "; The rest may be inferred.
The foam of making in the mode of present embodiment distributes on the domain tyeory everywhere that the path is to equate fully, does not have error.
According to another preferred embodiment of the present invention, this foam applying device can be arranged to multistage conveying form.Promptly, the first foam distribution joint 10 picks out many first foam pipelines 12 respectively, each first foam pipeline 12 does not directly connect the foam distributor disk, but connects one second foam distribution joint (structure and the first foam distribution joint 10 are similar, no longer illustrate) again.Pick out many second foam pipelines (structure and foam pipeline 12 are similar, no longer illustrate) more respectively from this second foam distribution joint, these second foam pipelines are connected with foam input adapter 21 on the foam distributor disk.The first order and partial foam pipeline preferably all are the 5-20 root, and the foam pipeline quantity of two-stage can be identical, also can be inequality.
For example, as shown in Figure 8, when the first order and partial foam pipeline all were 9, the carrier pipe that is transported to the foam distributor disk at last was 81, and corresponding foam applies and distributes the quantity in district 25 also to be 81.When first order foam pipeline be 8, when partial foam pipeline quantity is 10, the carrier pipe that is transported to the foam distributor disk at last is 80, corresponding foam applies and distributes the quantity in district 25 also to be 80.Can utilize on the foam distributor disk more foam to apply like this distributes the district to obtain the more uniform effect that applies.
Those skilled in the art can be readily appreciated that in the embodiment of multistage conveying, and the foam in this foam distributor disk applies and distributes the district can be the triangular-section, also can be the cross section in the additional bending of triangle district.
Moreover the further embodiment according to the present invention corresponding to cloth cover or other planar products of different in width, can select to open or close the foam pipeline of varying number.Specifically, can the function that valve 26 (as shown in fig. 1) reaches switching be set at foam input adapter 21 places of foam distributor disk 20, thereby can adjust the width that foam applies, adapt to the width of cloth cover or other planar products.
Claims (8)
1. foam applying device, comprise foam delivery portion (1) and foam applying unit (2), described foam delivery portion (1) comprises foam distribution joint (10), these foam distribution joint (10) one ends connect foam input house steward (11), the other end connects first end of the foam pipeline (12) that many length and diameter all equate respectively, arrives the output centre distance of each foam pipeline on foam distribution joint (10) at the input center on the foam distribution joint (10) from described foam input house steward (11) and equates respectively;
Described foam applying unit (2) comprises foam distributor disk (20), foam distributor disk one side forms the foam input adapter of longitudinally arranging (21), second end of each foam pipeline (12) with foam input adapter (21) thus be connected internal communication with foam distributor disk (20), the continuous foam that the opposite side of foam distributor disk (20) forms longitudinal extension distributes slit (23), it is characterized in that:
The respectively a plurality of and corresponding foam of foam input adapter (21) applies and distributes district (28) to be formed between foam input adapter (21) and the foam distribution slit (23), described foam applies and distributes district (28) to comprise the bending zone, bottom (24) that a cross section is the zone of isosceles triangle (25) and forms along the triangle base, described bending zone, bottom (24) is made up of ascent stage (24A) and descending branch (24B), foam distributes the bottom of slit (23) corresponding to descending branch (24B), is definite value along the interior path of the delta-shaped region on the foam travel path (25) (MP) with bending district (24) interior path (PN) sum wherein.
2. a foam applying device comprises foam delivery portion (1) and foam applying unit (2),
Described foam delivery portion (1) comprises
The first foam distribution joint (10), these foam distribution joint (10) one ends connect foam input house steward (11), the other end connects first end of first foam pipeline (12) that many length and diameter all equate respectively, arrive the output centre distance of each foam pipeline on foam distribution joint (10) at the input center on the foam distribution joint (10) from described foam input house steward (11) and equate respectively, and
A plurality of second foam distribution joint, one end of each second foam distribution joint is connected with second end of each first foam pipeline (12), the other end connects first end of second foam pipeline that many length and diameter all equate respectively, arrives each second foam pipeline output centre distance on the second foam distribution joint at the input center on the second foam distribution joint from described second foam pipeline and equates respectively;
Described foam applying unit (2) comprises foam distributor disk (20), foam distributor disk one side forms the foam input adapter of longitudinally arranging (21), second end of each second foam pipeline with foam input adapter (21) thus be connected internal communication with foam distributor disk (20), the continuous foam that the opposite side of foam distributor disk (20) forms longitudinal extension distributes slit (23), it is characterized in that:
The respectively a plurality of and corresponding foam of foam input adapter (21) applies and distributes district (28) to be formed between foam input adapter (21) and the foam distribution slit (23), described foam applies and distributes district (28) to comprise the bending zone, bottom (24) that a cross section is the zone of isosceles triangle (25) and forms along the triangle base, described bending zone, bottom (24) is made up of ascent stage (24A) and descending branch (24B), foam distributes the bottom of slit (23) corresponding to descending branch (24B), is definite value along the interior path of the delta-shaped region on the foam travel path (25) (MP) with bending district (24) interior path (PN) sum wherein.
3. foam applying device as claimed in claim 1 or 2 is characterized in that: described foam distribution joint is cylindrical, and foam input house steward is positioned at the circle centre position of foam distribution joint end face, and foam pipeline is connected on its periphery.
4. foam applying device as claimed in claim 1 or 2 is characterized in that: described foam distributes between the district and separated by spacer block (22), and is not connected.
5. foam applying device as claimed in claim 1 or 2 is characterized in that: described foam input adapter (21) is provided with valve (26).
6. foam applying device as claimed in claim 1 or 2 is characterized in that: described foam pipeline is made by chemicals-resisting material.
7. foam applying device as claimed in claim 1 is characterized in that: the radical of described foam pipeline is the 4-20 root.
8. foam applying device as claimed in claim 2 is characterized in that: the radical of described first foam pipeline is the 4-20 root, and the radical of second foam pipeline is the 4-20 root.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710047713A CN101143356B (en) | 2007-11-01 | 2007-11-01 | Foam applying device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710047713A CN101143356B (en) | 2007-11-01 | 2007-11-01 | Foam applying device |
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| CN101143356A CN101143356A (en) | 2008-03-19 |
| CN101143356B true CN101143356B (en) | 2010-05-19 |
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| CN200710047713A Active CN101143356B (en) | 2007-11-01 | 2007-11-01 | Foam applying device |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101974835B (en) * | 2010-10-15 | 2012-11-21 | 上海誉辉化工有限公司 | Foam application device for knitted fabric |
| CN102650096B (en) * | 2011-02-28 | 2014-05-28 | 上海辉誉化工有限公司 | Reactive dyeing method applying color fixing liquid in foamed manner |
| CN102650097B (en) * | 2011-02-28 | 2014-05-28 | 上海辉誉化工有限公司 | Foam spraying dyeing method adopting reactive dyes |
| CN104862903A (en) * | 2014-02-21 | 2015-08-26 | 江南大学 | Knife edge type foam application device for foam sizing |
| CN106436104B (en) * | 2016-11-08 | 2023-10-03 | 上海技楷机电设备有限公司 | Slit plate, foam applying mechanism and foam applying finishing device |
| CN107012607B (en) * | 2017-04-17 | 2022-02-22 | 上海福惠纺织科技有限公司 | Printing and dyeing device and foam guide plate for same |
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| US4165211A (en) * | 1976-07-10 | 1979-08-21 | Bayer Aktiengesellschaft | Apparatus for applying a layer of a liquid foamable reaction mixture to a continuously moving support |
| EP0123367A1 (en) * | 1983-03-09 | 1984-10-31 | West Point-Pepperell, Inc. | Apparatus for applying repeatable patterns of dye-carrying foam onto a moving web |
| US4880163A (en) * | 1987-01-27 | 1989-11-14 | Asahi Glass Company, Ltd. | Gas feeding nozzle for a chemical vapor deposition apparatus |
| CN1084234A (en) * | 1992-09-16 | 1994-03-23 | 东洋纤维产业株式会社 | The sprayer of multi-color form dyeing machine |
| CN201108880Y (en) * | 2007-11-01 | 2008-09-03 | 上海誉辉化工有限公司 | Foam applying device |
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| US3667258A (en) * | 1969-11-13 | 1972-06-06 | Ici Ltd | Apparatus for producing striped colorations on dyeable substrates in continuous form |
| US4165211A (en) * | 1976-07-10 | 1979-08-21 | Bayer Aktiengesellschaft | Apparatus for applying a layer of a liquid foamable reaction mixture to a continuously moving support |
| EP0123367A1 (en) * | 1983-03-09 | 1984-10-31 | West Point-Pepperell, Inc. | Apparatus for applying repeatable patterns of dye-carrying foam onto a moving web |
| US4880163A (en) * | 1987-01-27 | 1989-11-14 | Asahi Glass Company, Ltd. | Gas feeding nozzle for a chemical vapor deposition apparatus |
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Effective date of registration: 20200224 Address after: 201306 no.750 Zhubai Road, Nanhui new town, Pudong New Area, Shanghai Patentee after: Shanghai Hongxin Management Consulting Co., Ltd Address before: Anting Jiading District Town, Shanghai City Road No. 208 in 201805 Patentee before: Shanghai Yuhui Chemical Co.Ltd |
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