TW561204B - Molten yarn take-up device - Google Patents

Abstract

A molten yarn take-up device, comprising a cooling device disposed on the underside of a spinneret with cooling air inlet parts surrounding around spin-out yarns, ejector parts connected to the underside of the cooling air inlet parts and blowing compressed air around the spin-out yarns, and airflow guide pipes connected to the underside of the ejector parts, characterized in that the cooling air led from the outsides to the insides of the cooling air inlet parts is moved in the direction of running of the spin-out yarns so as to increase the velocity of the cooling air through the airflow guide pipes.

Description

561204 五、發明說明（4) 部侧之排放器部6 0和下部側 正如圖2所顯示的，冷卻風田乳#流導引管9而構成的。 氣整流筒51，以便於包圍該用：入部7 ’得、在内側配置空 卻風用導入部7之外側透過間隙出狀線條Y ’並且’在該冷 有許多之孔洞52a、53a之内如'夕，而呈同心狀地配置該具 。内側之空氣整流筒51，“ ;孔管52和外側多孔管' 排列之許多個之微小通氣路：：沿著放射方向而： 、，<所層積之多孔狀構造而構成 的，並且，透過該多孔狀構造 A /夂V V丨A· 之i ’而朝向内側之紡出狀 線條Y，對於外侧之空氣進行整流及導入 ί覆蓋住空氣整流筒51外側之内侧多孔管52，係固定在 配官11之上面，並且，該内側多孔管52外侧之外側多孔管 心係對於内側多孔管52，α共通之轴作為中心而相對地 進行轉動。在外侧多孔管5 3之下緣，安裝該具有圓弧形長 孔1 0 a之凸^緣1 0。可以藉由在該凸緣丨〇之長孔丨〇 a，***該 固定於配管11上之螺栓丨0b，夾緊該螺栓丨〇b以便於能夠固 定外側多孔管5 3。 在放鬆螺拴1 〇 b而轉動外側多孔管5 3之時，由於外周圍 面之孔洞5 3 a ’對於内側多孔管5 2之孔洞5 2 a改變相位，而 變化其開口面積，因此，能夠調整該冷卻風之導入量。該 設置於内側多孔管5 2和外側多孔管5 3上之孔洞5 2 a、5 3 a， 係並不僅限定於例如圖示之圓形，也可以為橢圓形和縫隙 狀等之任何一種形狀。 正如圖3所顯示的，空氣排放器機構8之排放器部6 0，係 在内側配置内管6 2，並且，在該排放器部6 〇之外側呈同心561204 V. Description of the invention (4) Discharger section 60 and lower side of the side As shown in FIG. 2, the cooling wind field milk #flow guide pipe 9 is formed. The air rectifying cylinder 51 is used to surround the use: the inlet 7 ′ is provided, and the air introduction part 7 is arranged on the inside. The outer side passes through the gap-shaped line Y ′ outside the gap. 'Even, the tool is arranged concentrically. The inner air rectifying cylinder 51, "; a plurality of minute ventilation paths arranged in the perforated tube 52 and the outer porous tube ':: along the radiation direction: < < the laminated porous structure is formed, and, Through the porous structure A / 夂 VV 丨 A · i ′, the spun line Y facing toward the inside is used to rectify and introduce the outside air. The inside porous tube 52 covering the outside of the air rectifying cylinder 51 is fixed to Above the distributor 11, and the outer porous core on the outside of the inner porous tube 52 is relatively rotated with respect to the inner porous tube 52 with an α common axis as the center. The lower edge of the outer porous tube 52 is installed. The convex edge 10 with a circular arc-shaped long hole 10a can be inserted into the bolt 丨 0b fixed to the pipe 11 through the long hole 丨 〇a of the flange 丨 〇 and clamp the bolt 丨 〇 b so that the outer porous tube 5 3 can be fixed. When the bolt 10 is loosened and the outer porous tube 53 is rotated, the holes 5 3 a of the outer peripheral surface are changed to the holes 5 2 a of the inner porous tube 5 2 Phase, while changing its opening area, so it is possible to adjust this The amount of wind introduced. The holes 5 2 a and 5 3 a provided in the inner porous tube 5 2 and the outer porous tube 5 3 are not limited to, for example, a circle as shown in the figure, but may be oval or slits. As shown in FIG. 3, the exhauster portion 60 of the air exhauster mechanism 8 is provided with an inner tube 62 inside, and concentrically outside the exhauster portion 60.

C:\2D-CODE\90-06\90106882.ptd 第7頁 561204C: \ 2D-CODE \ 90-06 \ 90106882.ptd Page 7 561204

狀地配置外管63，而在該内管62和外 許多片之整流板64，以便於構成該空氣排放二機二在夾入 放器部60。内管62，係藉由下端呈 枝構8之排 曰田r文而壬〇徑縮小營， 該由冷卻風用導入部7開始呈延异夕$仏μ p 而構成 々,、長之連結管61。此外，兮 所配置之許多片之整流板64、其各個之面卜向亥 管62和外管63之共通軸而成為放射狀，同 出狀線條Y之行進方向。該形成於整流板64出口部位上-喷射口 65、其喷射方向，係對於紡出狀線條γ之行進方向 ，成為0 °〜3 °之角度0。 排放器部6 0，係與同樣地設置在其他之紡紗包6上之排麵^ 放器部6 0，一起被收納固定在共通之配管1 1中。在該配管 11，由並無圖示出之送風機開始，遂過供應用管11a而供 應該壓縮狀空氣，並且，該壓縮狀窆氟’係侵入至各個之 排放器部6 0内管6 2和外管6 3間之間隙，藉由整流板6 4而對 於該壓縮狀空氣進行整流，同時，由噴射口 6 5開始，喷射 該壓縮狀空氣至該行進狀線條Y之周圜上。 藉由排放器部6 0，而喷射該壓縮狀空氣’以便於使得上 部之冷卻風用導入部7之内部成為負塵狀態。藉由該負壓 之發生，而使得室内之調溫處理過之空氣’由外側多孔管 53之孔洞53a開始，經過内側多孔管52之孔洞52a，並且，響 還在空氣整流筒5 1中進行整流，同時，通過該空氣整流筒 51，而被供應至内側之紡出狀線條γ之周圍上。該導入至 内側之空氣，係作為冷卻風而冷卻該紡出狀線條Y ’並且 ，還沿著該紡出狀線條γ，而流下該導入至内側之空氣，An outer tube 63 is arranged in a shape like this, and the inner tube 62 and a plurality of outer rectifying plates 64 are arranged so as to constitute the air discharge unit 2 and the receiver unit 60. The inner tube 62 is a narrowed camp with a row of branches 8 at the lower end, and a narrower batten. The cooling air introduction section 7 starts to extend $ 夕 μ p to form a long, long connection. Tube 61. In addition, many of the rectifying plates 64 and their respective faces are arranged in a radial direction toward the common axis of the helical tube 62 and the outer tube 63, and follow the direction of travel of the line Y. This is formed on the exit portion of the fairing plate 64-the ejection opening 65, and the ejection direction thereof is an angle of 0 ° to 3 ° with respect to the traveling direction of the spun-out line γ. The ejector section 60 is the same as the exhaust surface ^ putter section 60 provided on the other spinning bag 6 and is housed and fixed in a common pipe 11. The piping 11 is started from a blower (not shown), and the compressed air is supplied through the supply pipe 11a. The compressed fluorinated fluorine penetrates into each of the discharger portions 60. The inner tube 6 2 The gap between the outer tube 63 and the outer tube 63 is rectified by the rectifying plate 64, and at the same time, the compressed air is ejected from the injection port 65 to the periphery of the traveling line Y. The ejector portion 60 sprays the compressed air 'so that the inside of the upper cooling air introduction portion 7 becomes a negative dust state. By the occurrence of this negative pressure, the indoor temperature-adjusted air ′ starts from the hole 53a of the outer porous tube 53 and passes through the hole 52a of the inner porous tube 52, and the sound is still performed in the air rectifying cylinder 51. At the same time, the air is rectified and supplied to the periphery of the spin-shaped line γ through the air rectifying cylinder 51. The air introduced into the inside cools the spun-out line Y 'as cooling air, and also flows along the spun-out line γ, and flows down the air introduced into the inside,

C:\2D-CODE\90-06\90106882.ptd 第8頁 561204 五、發明說明（7) ---- 以如圖5所顯示的，相對於作業面成為深處部伋 位之前後2列，並且，也成為千鳥分散狀。可以°二I = 述這樣之配置，以便於即使是在利用每丨台之旋^像前 配置許多個之紡紗包6之狀態下，也能夠使得相互，轴而 冷卻用裝置2、2間之距離d，保持一定之距離，& =接之 可以縮短該旋轉式轴1之全長L。 同0守’還 同樣地，正如圖6所顯示的，也能夠呈圓弧狀地_ 設置在旋轉式軸1内之許多個之紡紗用抽絲頭41配置該 )。如果成為像前述這樣之圓弧狀之配置的話，紡紗包6 當容易地使得由計量用幫浦4開始而供給該炼融’則^可以相 至各個紡紗用抽絲頭4 1之配管5之距離，幾乎2狀合物 長度，以便於能夠聚合物之熱履歷成為均句，、為相同之 之物性成為均一化。 而使仔線條 在藉由前述之本發明之熔融紡紗捲繞裝置之日士， 之熔融紡紗捲繞裝置之特徵，係為·· 才本發明 冷卻風，在冷卻用裝置2内，係沿著與紡出狀線條丫 進方向呈相同之方向：進行流冑，並且，纟紡紗用抽絲： 4 1之附近，降低該冷卻風之流速，而越加朝向氣流導引J 9，則越加增大該冷卻風之流速。可以藉由在冷卻風用吕 入部7上之外側多孔管53之所造成之空氣導入量之控制以 及在排放器部60上之壓縮狀空氣之供應量之控制，而實施 像前述這樣之冷卻風之速度之，整。可以藉由壓力之調^ ，而進行該壓縮狀空氣之供應量之控制。 ι 由於像前述這樣之冷卻風速度之變化，而在排放器部6〇C: \ 2D-CODE \ 90-06 \ 90106882.ptd Page 8 561204 V. Description of the invention (7) ---- As shown in Fig. 5, the depth of the depth relative to the working surface is before and after 2 Columns, and also become Chidori scattered. Can be two I = the configuration described above, so that even in the state where a number of spinning packages 6 are arranged in front of each spin ^ image, the cooling device 2 and 2 can be made to each other, shaft and cooling Distance d, keep a certain distance, & = can shorten the total length L of the rotary shaft 1. Similarly to 0 ', as shown in Fig. 6, a plurality of spinning spinnerets 41 provided in the rotary shaft 1 can be arranged in a circular arc shape). If it has an arc-like configuration as described above, the spinning package 6 can be easily supplied from the metering pump 4 to the smelting and melting process, and can be connected to the piping of the spinning spinnerets 41. The distance of 5 is almost the length of the 2 compound, so that the thermal history of the polymer can be uniform, and the physical properties that are the same can be uniformized. The characteristics of the melt-spinning winding device by the above-mentioned melt-spinning winding device of the present invention are the cooling air of the present invention. In the cooling device 2, Along the same direction as the spinning-in line, the flow direction is carried out, and the spinning of the yarn for spinning: near 1 is to reduce the flow velocity of the cooling air, and to guide J 9 toward the air flow, The flow velocity of the cooling air is further increased. The above-mentioned cooling air can be implemented by controlling the amount of air introduced by the outer porous pipe 53 on the cooling air inlet portion 7 and the amount of compressed air supplied on the drain portion 60 The speed of the whole. The supply of the compressed air can be controlled by adjusting the pressure ^. ι Due to changes in the cooling air speed as described above,

C:\2D-CODE\90-06\90106882.ptd 561204 五、發明說明（9) 舍生像A述這樣之纖細度斑紋之冷卻風之速度，係 為前述速度之1 /12〜1/2。對於纖細度比較小之線=成 紡紗，減小該冷卻風之速度，並且，對於纖細度比轸=之 線條之紡紗，加大該冷卻風之速度。此外，線條之^之 越大，則最好越加長該冷卻風用導入部7之長度。、、句度 此外’在排放器部6〇中之壓縮狀空氣之壓力呈過 ，則會1生亂流，並且，還由於該亂流，而產生線條搖= 現象’結果’成為纖細度斑紋或線斷裂之原因。所以，= 為排放f部60中之噴射速度，係可以為30 0 0m/min以下。 正如刚面所敘述的，該由排放器部6 0之喷射口 6 5開始而毫| 進行喷射之壓縮狀空氣之喷射方向，係最好對於紡出狀線 條丫之行進方向，成為0。〜3。之角度0 ，特別是可以成 為\ 。也就是說，正如圖4所顯示的，在角度Θ為0。之 狀悲下’由於該噴射口 6 5之喷射方向，係平行於内管6 2之 轴方向\因此’該由噴射口 6 5之所噴射出之壓縮狀空氣之 氣流’係並不會與由内管62之所流出之氣流相交會，而會 隨著境界層1 0 1，一起進行移動。並且，由於該由喷射口C: \ 2D-CODE \ 90-06 \ 90106882.ptd 561204 V. Description of the invention (9) The speed of the cooling wind that gives birth to the fineness and streaks as described in A, is 1/12 ~ 1/2 of the aforementioned speed . For yarns with a smaller fineness = finished spinning, reduce the speed of the cooling air, and for yarns with fineness ratios =, increase the speed of the cooling air. In addition, the larger the line size, the longer the length of the cooling air introduction portion 7 is preferably. In addition, 'the pressure of the compressed air in the discharge unit 60 will be turbulent, and because of this turbulent flow, line shaking will occur = phenomenon' result 'becomes fineness streaks Or the cause of the wire break. Therefore, = is the injection speed in the discharge section 60, and it can be 300 m / min or less. As described in the previous description, the direction of the compressed air sprayed from the nozzle opening 65 of the ejector section 60 is preferably 0 for the direction of travel of the spun yarns. ~ 3. The angle of 0, in particular, can become \. That is, as shown in FIG. 4, the angle θ is 0. The state of sorrow 'Because the injection direction of the injection port 65 is parallel to the axial direction of the inner tube 62, so the' flow of compressed air sprayed from the injection port 65 'will not The airflows from the inner tube 62 intersect and move together with the realm layer 101. And because the ejection port

65之所喷射，之壓縮狀空氣之速度^，係大於該由内管62 之所流出之氣流之速度％，因此，壓縮狀空氣之壓力，係 比較低。因此’該纺出狀線條Y，係朝向境界層1 0 1而進行 考曲之位私擴大该所構成之長絲（f i 1 a m e n t)間之距離， 結果’可以促進其冷卻作用。隨著境界層丨〇1進行至下游 ，而擴散及消失該境界層丨〇 1。 由於该連結至氣流導引管9下端之擴口徑型管1 2，係膨The speed ^ of the compressed air sprayed at 65 is greater than the speed of the air flow out of the inner pipe 62%. Therefore, the pressure of the compressed air is relatively low. Therefore, 'the spun-shaped line Y is tested toward the realm layer 101, and the distance between the formed filaments (f i 1 a m e n t) is enlarged privately. As a result, the cooling effect can be promoted. As the realm layer 〇01 proceeds to the downstream, the realm layer 〇01 spreads and disappears. Since the enlarged-diameter pipe 12 connected to the lower end of the airflow guide pipe 9 is expanded,

C:\2D-C0DE\90-06\90106882.ptd 第12頁 561204 五、發明說明（13) 10 凸緣 10a 長孔 10b 螺栓 11 配管 11a 供應用管 12 擴口徑型管 13 導引用軌道 14 導引用軌道 15 圓筒 16 圓筒 ❿ 17 軋滚 18 軋滾 19 供油用導件 41 紡紗用抽絲頭 51 空氣整流筒 52 内側多孔管 52a 孔洞 53 外側多孔管 53a 孔洞 60 排放器部 · 61 連結管 62 内管 6 3 外管 64 整流板C: \ 2D-C0DE \ 90-06 \ 90106882.ptd Page 12 561204 V. Description of the invention (13) 10 Flange 10a Long hole 10b Bolt 11 Piping 11a Supply pipe 12 Expanded diameter pipe 13 Guide track 14 Guide Reference track 15 Cylinder 16 Cylinder cymbal 17 Roller roll 18 Roller roll 19 Oil supply guide 41 Spinneret for spinning 51 Air straightening tube 52 Inner porous tube 52a Hole 53 Outer porous tube 53a Hole 60 Ejector unit · 61 Connecting tube 62 Inner tube 6 3 Outer tube 64 Rectifier

C:\2D-CQDE\90-06\90106882.ptd 第16頁 561204 五、發明說明（14) 6 5 喷射口101 境界層 « C:\2D-CODE\90-06\90106882.ptd 第17頁C: \ 2D-CQDE \ 90-06 \ 90106882.ptd page 16 561204 V. Description of the invention (14) 6 5 Jet port 101 boundary layer «C: \ 2D-CODE \ 90-06 \ 90106882.ptd page 17

II 561204 圖式簡單說明 圖1係為用以例舉出本發明之熔融紡紗捲繞裝置之例子 之概略.前視圖。 圖2係為用以顯示圖1之熔融紡紗捲繞裝置之冷卻風用導 入部之立體圖。 ’圖3係為用以顯示圖1之熔融紡紗捲繞裝置之排放器部之 縱剖面圖。 圖4係為用以顯示本發明之所使用之熔融紡紗捲繞裝置 之排放器部之其他之實施形態之縱剖面圖。 圖5係為用以例舉出本發明之紡紗用抽絲頭和冷卻用裝 置之間之配置關係之例子之配置圖。 ----圖-6-係-為-用-以-例-舉一出一本-發-明一之-纺-紗-用由-絲-頭-和-冷-卻-用一裝- 置之間之配置關係之例子之配置圖。II 561204 Brief Description of Drawings Fig. 1 is a schematic view for illustrating an example of a melt spinning winding device of the present invention. Front view. Fig. 2 is a perspective view showing a cooling air guide portion of the melt-spinning winding device of Fig. 1; FIG. 3 is a longitudinal sectional view showing a discharger portion of the melt-spinning winding device of FIG. 1. FIG. Fig. 4 is a longitudinal sectional view showing another embodiment of a discharger portion of a melt-spinning winding device used in the present invention. Fig. 5 is a layout diagram illustrating an example of the layout relationship between the spinning spinneret and the cooling device of the present invention. ---- Figure-6-Department-for-use-with-example-exemplify a copy-hair-ming-one-spinning-yarn-use-by-silk-head-and-cold-but-with-one -Configuration diagram of an example of the configuration relationship between devices.

C:\2D-C0DE\90-06\90106882.ptd 第18頁C: \ 2D-C0DE \ 90-06 \ 90106882.ptd Page 18

Claims (1)

561204 案號 90106882 年 正 似 ΰ. 一 替换本 六、申請專利範圍 1. 種用 捲繞該由紡 熔融紡紗捲 該配置在 以下之構件 冷卻風用 排放器部 該壓縮狀空 氣流導引 下部；此外 使得該由 側之冷卻風 並且增大導 2. 如申請 卻裝置，其 線條之由熔 3. 如申請 冷卻裝置， 前述紡出狀 4. 如申請 冷卻裝置， 對於紡出狀 於熔融紡 紗用抽絲 繞裝置， 前述紡紗 而組成的 導入部， ，係連結 氣至前述 管，而該 5 前述冷卻 ，沿著該 入前述之 專利範圍 中，在前 融液相狀 專利範圍 其中，在 線條周圍 專利範圍 其中，前 線條之行 3 °之範圍内 3· 06補充i 紗捲繞程序之冷卻裝置，係為冷卻及 頭開始呈熔融紡紗狀之紡出狀線條之 其特徵為： 用抽絲頭之下部之冷卻用裝置，係由 係包圍住前述之紡出狀線條之周圍； 該之冷卻風用導入部之下部，而喷射 紡出狀線條之周圍；以及， 氣流導引管，係連結至該排放器部之 風用導入部之外側開始而被導入至内 紡出狀線條之行進方向，進行移動， 氣流導引管内之該冷卻風之速度。 第1項之用於熔融紡紗捲繞程序之冷 述之氣流導引管内，存在前述紡出狀 態轉變為固相狀態之固化點。 第1或2項之用於熔融紡紗捲繞程序之 前述之冷卻風用導入部，設置該包圍 之空氣整流筒。 第1或2項之用於熔融紡紗捲繞程序之 述排放器部之壓縮狀空氣之喷射方向 進方向之所形成之角度0 ，係在0 ° <1 5.如申請專利範圍第4項之用於熔融紡紗捲繞程序之冷561204 Case No. 90106882 is similar to ΰ. One replaces this VI. Application for patent scope 1. Kinds of winding, spinning, spinning, spinning, coiling, the following components are arranged, the cooling air exhaust unit, the compressed air flow guide the lower part In addition, the cooling air from the side is increased and the guide is increased. 2. If the device is applied, the line is melted. 3. If the cooling device is applied, the above-mentioned spun-out state. 4. If the cooling device is applied, the melt-spun state is melt-spun. The yarn winding device, the introduction part composed of the above-mentioned spinning, is connected to the above-mentioned tube, and the above-mentioned cooling is included in the above-mentioned patent scope, among which is the former melt-liquid-phase patent scope, Among the patents around the line, the cooling device of the 3 · 06 supplementary i yarn winding process within the range of 3 ° of the front line is for cooling and the spun-shaped line with the head beginning to melt-spun is characterized by: The cooling device using the lower part of the spinneret is used to surround the periphery of the above-mentioned spun-shaped line; the cooling air is introduced by the lower part of the lead-in portion, and the circumference of the spun-shaped line is sprayed And the airflow guide pipe, which is connected to the outside of the wind introduction part of the exhauster, is introduced into the direction of travel of the inner-spinning line and moves, and the speed of the cooling air in the airflow guide pipe . In the airflow guide tube described in the cooling of the melt-spinning winding process of item 1, there is a solidification point where the spinning state is changed to a solid state. The aforementioned cooling air introduction part for the melt-spinning winding process of item 1 or 2 is provided with the surrounding air straightening cylinder. The angle formed by the injection direction of the compressed air in the ejector section of the discharge section for the melt spinning winding process of item 1 or 2 is 0, which is 0 ° < 1 5. If the scope of patent application is the fourth Item for cooling of the melt spinning winding process C:\專利案件總檔案\9〇\9〇1〇6882\9〇1〇6882(替換hlptc 第19頁 561204 案號 90106882 ‘铬] 修正 六、申請專利範圍 卻裝置，其中，在前述之排放器部，配置整流板。 6. 如申請專利範圍第4項之用於熔融紡紗捲繞程序之冷 卻裝置，其中，前述排放器部之壓縮狀空氣之噴射速度， 係為3 0 0 0 m / m i η以下。 7. 如申請專利範圍第1或2項之用於熔融紡紗捲繞程序之 冷卻裝置，其中，在前述之氣流導引管之出口部，安裝擴 口徑型管。 8. 如申請專利範圍第1或2項之用於熔融紡紗捲繞程序之 冷卻裝置，其中，前述氣流導引管之長度，係為内徑之1 0 〜5 0倍。 9. 如申請專利範圍第1或2項之用於熔融紡紗捲繞程序之 冷卻裝置，其中，呈許多列地配置前述之紡紗用抽絲頭， 而在每一個之各個之紡紗用抽絲頭，配置前述之冷卻用裝 置。 1 0.如申請專利範圍第9項之用於熔融紡紗捲繞程序之冷 卻裝置，其中，將前述之配置排列有許多個之紡紗用抽絲 頭之列，配置成前後2列以上。C: \ General file of patent cases \ 9〇 \ 9〇1〇6882 \ 9〇1〇6882 (replace hlptc, page 19, 561204, case number 90106882 'chrome] Amendment 6. The scope of the patent application but the device, in which the aforementioned emissions The rectifier plate is equipped with a rectifier plate. 6. For the cooling device for the melt spinning winding process in the fourth item of the patent application scope, wherein the ejection speed of the compressed air of the aforementioned eliminator section is 3 0 0 0 m / mi η or less. 7. If the cooling device for the melt spinning winding process of item 1 or 2 of the patent application scope, wherein an enlarged diameter pipe is installed at the exit of the aforementioned airflow guide pipe. 8. For example, the cooling device for the melt-spinning winding process in the scope of the patent application item 1 or 2, wherein the length of the aforementioned airflow guide pipe is 10 to 50 times the inner diameter. The cooling device for a melt-spinning winding process according to item 1 or 2, wherein the spinning heads for spinning are arranged in a plurality of rows, and the spinning heads for each spinning are arranged in each row. Cooling device. 10. For melting as in item 9 of the scope of patent application Cold Spinning Procedure winding cooling means, wherein the configuration of the arrayed plurality of spinning head of the spinning column, arranged before and after the above two. C:\專利案件總檔案\9〇\9〇]〇6882\9〇1〇6882(替換)_2.ptc 第 20 頁C: \ Master File of Patent Cases \ 9〇 \ 9〇] 〇6882 \ 9〇1〇6882 (Replacement) _2.ptc Page 20