baber/WOPTO huggingface dataset:
Patent CN-113445993-B (CN)
IPC: E21B47/008
Filed: 2021-07-06
Granted: 2022-06-03
Abstract: 本发明公开了一种基于离散系统的抽油机井泵功图转化模型，涉及抽油设备故障诊断技术领域，包括以下步骤：（1）将抽油杆柱简化为多质量—弹簧系统，建立抽油杆柱多自由度运动微分方程。（2）利用傅里叶级数法给出悬点位移、悬点载荷和泵端载荷的近似表达式代入方程。（3）利用振型叠加法将抽油杆柱多自由度运动微分方程化为若干个单自由度运动微分方程。（4）利用单自由度系统振动求解公式求解方程。（5）利用悬点载荷求解和对比系数求出泵端载荷表达式的傅里叶系数，求出泵端载荷表达式和位移表达式。本发明使得模型求解过程更简便，使得模型建立过程简单易懂，提高了故障诊断的效率与准确度。
Patent CN-113607032-B (CN)
Title: 一种用于飞机外形曲面阶差测量工具及测量方法
IPC: G01B5/20
Filed: 2021-07-21
Granted: 2022-06-14
Abstract: 本发明涉及机械测量领域，特别是一种用于飞机外形曲面阶差测量工具及测量方法，包括工具底座、直筒压入环、指示表和拧紧开关，所述工具底座上设置有测量环和贯穿其上表面和下表面的指示表安装孔，所述指示表安装孔内设置有直筒压入环，所述直筒压入环中设置有指示表，所述工具底座的侧面设置有拧紧开关。本发明专利的曲面阶差测量工具，结构简单，使用方便，可以满足不同精度的阶差测量需求。可根据不同阶差调整指示表高度，实现多种尺寸阶差的测量。利用本发明专利的曲面阶差测量方法，还可以快速测量两曲面间的弯曲程度，提高测量效率。可使用两种不同的方法对曲面阶差进行测量，通过两种方法得到更为准确的结果，并且可以进行互为验证。
Patent CN-113333899-B (CN)
Title: 一种用于机械配件加工用的焊接装置
IPC: B23K101/06
Filed: 2021-08-02
Granted: 2021-10-26
Abstract: 本发明适用于焊接设备技术领域，尤其涉及一种用于机械配件加工用的焊接装置，所述装置包括底座，底座上端安装有至少两组调心输送机构，调心输送机构远离底座的一端固定安装有自动焊接机构，底座内设置有支撑板，支撑板底部通过升降组件与底座内腔底部连接，支撑板上转动设置有打磨轴，打磨轴横截面为非圆形，打磨轴上滑动套设有两组砂轮，打磨轴中部固定设置有磨片，磨片垂直于打磨轴设置，磨片上位于偏心位置处转动设置有螺杆，螺杆的两端与两组砂轮配合连接。本发明能够快速调节两组待焊接管道之间的距离，利用磨片和砂轮完成管道焊接处的坡口处理，最终利用自动焊接机构完成焊接工作，整个过程无需人工参与，能够保证焊接质量稳定。
Patent CN-113420735-B (CN)
IPC: G06K9/00
Filed: 2021-08-23
Granted: 2021-12-21
Abstract: 本发明公开了一种轮廓提取方法、装置、设备及存储介质，该方法包括：采集待识别的目标物体的二维图像和三维点云图像；基于所述三维点云图像，对所述二维图像进行特征提取，得到所述目标物体在所述二维图像中的第一轮廓图像，其中，所述第一轮廓图像中包含所述目标物体在所述二维图像中的各个连通面的边缘像素点；对所述二维图像进行边缘检测，提取所述二维图像的第二轮廓图像；利用所述第一轮廓图像中各个连通面的边缘像素点对所述第二轮廓图像进行过滤，得到所述目标物体的目标轮廓图像。本发明通过结合二维图像和三维点云图像，能够避免二维图像自身纹理和三维点云边缘像素点精度不高的问题，提高对物体轮廓图像的提取准确度。
Patent CN-113446777-B (CN)
Title: 一种移动式医疗药品冷藏装置
IPC: F25D19/00
Filed: 2021-08-31
Granted: 2021-10-29
Abstract: 本发明公开了一种移动式医疗药品冷藏装置，涉及到药品储存设备领域，包括冷藏柜体和移动底座，冷藏柜体内部设有保温内芯，保温内芯中设有多个冷藏室，冷藏室中设有切换式药物储存内芯，有益效果：本发明根据相对应冷藏室的位置，侧滑打开封闭板对存取槽口的封闭，沿存取槽口对内芯主支架上药物储存槽中所卡设的药物储存试管进行取出，电动机对切换式药物储存内芯驱使旋转，完成将内芯主支架上开设的药物储存槽切换至存取槽口的操作，这样的操作保证只有一个药物储存槽旋转至存取槽口的位置，而内芯主支架上其他药物储存槽中所存储的药物储存试管仍然处于冷藏室的内部，冷藏室内部冷气不会大量溢出，避免冷藏温度变化过大。
Patent CN-113894635-B (CN)
IPC: B24B27/00
Filed: 2021-11-03
Granted: 2022-06-21
Abstract: 本发明涉及晶圆加工技术领域，具体是基于自学习的智能硅基晶圆超精密研磨抛光机，包括台架，所述台架的顶部设置有下磨盘，下磨盘和台架的中间穿设有主轴，且下磨盘的上方设置有上磨盘，所述主轴外套设有偏心传动筒，偏心传动筒通过偏心运动机构与主轴连接，且主轴通过偏心传动筒连接有行星运动工件盘；所述上磨盘的顶部连接有压盘，压盘的外壁和内壁分别与台架的顶部外壁和偏心传动筒的外壁活动配合，本发明能够通过偏心传动筒带动行星运动工件盘进行运动，使得晶圆在研磨过程中既能够自转，又能够绕着主轴公转，而且还能够直线往复偏心运动，让晶圆受到各方向的研磨效果，促进研磨粒子对晶圆施加更多方向的作用，极大的提高研磨效率。
Patent CN-114084061-B (CN)
IPC: F21V15/04
Filed: 2022-01-24
Granted: 2022-04-12
Abstract: 本发明公开了一种具有防撞支撑结构的车辆照明灯，涉及汽车配件技术领域。本发明包括安装支架、安装罩和气动连杆，安装罩与安装支架通过气动连杆滑动配合，安装支架内设气动压柱，并与气动连杆连通，且其输出轴与安装罩接触。本发明通过设置安装罩和安装支架，在组装完毕后，当安装罩受到撞击而向车内凹陷或滑动时，安装支架能够对这部分冲击力进行缓冲卸压；其中通过在安装支架中设置气动压柱，利用气压杆结构卸压缓冲；同时通过在安装罩和安装支架之间连接气动连杆，并与气动压柱连通，能够利用撞击产生的冲击力作用在气动连杆，并使推压块滑动带动安装罩中防护帘的收放卷动作，从而防止外防护罩因受到撞击碎裂而破坏内部的照明灯珠。
Patent CN-114161629-B (CN)
IPC: B29L31/26
Filed: 2022-02-09
Granted: 2022-06-28
Abstract: 本申请公开了一种密封圈硫化装置，一种密封圈硫化装置，包括硫化机构，硫化机构包括模架、上模板、下模板、抽芯和加热组件，上模板设置于模架，上模板下端面设有上环形槽和安装孔，安装孔包括第一直段、锥形段和第二直段，第二直段内径小于第一直段内径；下模板可上下滑动设置于模架，下模板上端面设有下环形槽，上环形槽与下环形槽之间形成成型腔；抽芯包括第一杆部、锥形部和第二杆部，第一杆部上端设有进气孔，进气孔下端贯穿至锥形部外侧面；第一杆部可上下滑动设置于第一直段；当第二杆部下端与第二直段下端平齐时，锥形部与锥形段之间以及第二杆部与第二直段之间形成密封。其自动化程度高，无需喷涂脱模剂，降低了工作量，提高了生产效率。
Patent CN-114297947-B (CN)
IPC: H02J3/00
Filed: 2022-03-07
Granted: 2022-05-27
Abstract: 本发明涉及一种基于深度学习网络的数据驱动风电系统孪生方法及系统，属于数字孪生技术领域，首先基于单目视觉的三维重建方法生成物理实体静态模型，然后构建双重深度学习网络模型，利用双重深度学习网络模型获得风电系统中物理实体的动态运行模拟过程，并构建用于预测风电系统发电功率的长短时记忆神经网络规则模型，利用长短时记忆神经网络规则模型预测发电功率，最后利用数字孪生平台将风电系统中物理实体的动态运行模拟过程、预测发电功率与物理实体静态模型结合，实现孪生风电系统中物理实体的三维可视化，实现了对风电系统设备的远程监控与管理，提高其运维水平，并实现短期风电功率预测。
Patent GE-P19950068-B (GE)
Title: Method for Production of Flour from Fruits
Inventor: SHARASHENIDZE NADEZHDA
IPC: A23B9/00
Filed: 1992-09-30
Abstract: This invention refers to food-conning industry, in particular to method for production of flour from fruits and can be used in confectionery and in the public nutrition enterprises, etc.       This method ensures simplifying of the process and improvement of the property of the obtained product The method comprises sorting , washing, cutting and one step drying the raw at a temperature of 100ºC -till 40ºC during 10-12 hours, then grinding sieving and packing.            2 tab.
Patent GE-P19940008-B (GE)
Title: Method for Determining of Psychophysiological State of a Man
Inventor: BOBROV ANDREI
IPC: G01N33/48
Filed: 1993-02-08
Abstract: This invention refers to medicine espesially to methods for measurement and registration for diagnostics.This method can used for researching properties of human organism,               in particular the activity of healers, using methods of bioenergetic effect over patient.     The metod provides for non-contact control of psychopsysiological state of a man.    In electrode systeme disposed at a distance from the patient there is provided assymetry (non-equality of parametrs) of the electrode double layers which is achieved by different methods, e.g. by creating interelectric current. In this case registration of the reacition of the electrode systeme is the registration of the changes of the current value in respect to its value in the system disposed in stationary state when the patient has no effect on electrode system.
Patent GE-P19981442-B (GE)
Title: Flashlight
Inventor: MAGLIKA ANTONY
IPC: F21V31/03
Filed: 1993-02-04
Abstract: Improvement of operation characteristics.           2. Essence Flashlight 10 has mounted between battery compartment and a reflector 20 a switch body 28. The switch body neck 30 bears in the reflector 20 a lamp support in the central position. The tightening ring on the rear end of the switch body seals the battery department. The switch body is partially movable within the body of the flashlight 12 to provide the opportunity of slight adjustment of the lamp 60 with respect to the reflector 22 for the sake of its centering.            3. Field of Application Luminous technique, in particular the pocket flashlight design.     6 ill.
Patent GE-P19991618-B (GE)
Title: Method for Determination of Cadmium Contents in Fruit Juices
Inventor: SVANIDZE LILY
IPC: G01N33/49
Filed: 1996-07-23
Abstract: 1. Technical Result Reduce of the expenditure of reagents and the time for analysis 2. Essence Method provides for taking a sample, its treating,  concentration of the element and its determination by atomic-sorption method in which the concentration is conducted by chelating agent fiber sorbent ПОЛИОРГ VII m with the group at pH=7,5 3.	Field of Application Chemistry, in particular organic chemistry; food industry.
Patent GE-P20104925-B (GE)
Title: Combinations for treating hiv infection
Inventor: YAMANAKA GREGORY
IPC: A61P31/18
Filed: 2005-03-01
Abstract: Use of l-benzoyl-4-[2-[4-methoxy-7-(3- methyl-lH-l,2,4-triazol-l-yl)-lH-pyrrolo[2,3-c]pyridin-3-yl]-l,2-dioxoethyl]- piperazine, or a pharmaceutically acceptable salt or solvate thereof of the formula (1),   in therapeutically effective amount in combination with one of antiviral agent treatment of AIDS or HIV infection.
Patent GE-P20105006-B (GE)
Title: Spherical hinge
Inventor: JAMBERIDZE ZAZA
IPC: F16C11/06
Filed: 2008-05-20
Abstract: A hinge contains the case 1, a finger 2 with spherical head 3 put into it, the insert 4 put in between the head and the case and having the spherical surface which is bending around the spherical head, fixing cover 10 installed on the case, the channels 5 executed in the part of the insert disposed opposite to the finger, and put in these channels from the side of the fixing cover the rests 6 and 16 of the inserts equipped by the pressure elements to the spherical head 7 and 17. Thus the channels are executed radially from the outside, and the wedge-shaped rests put into these channels have in comparison with the radial channels smaller length and are directed to the center from the side wall of the spherical head, and the pressure elements of the insert are elastic and are installed on the end of the rests of the insert, fit to the free ends to a midwall of the case and are executed in the form of flat undular or single-coil spring.
Patent GE-P20125543-B (GE)
Title: Groundwire resistance measuring method and device
Inventor: KARASEV BORIS
IPC: G01R27/20
Filed: 2010-06-15
Abstract: (57) The inventive method and device ensures a groundwire resistance measuring by a dead-earthed neutral in a network. A current flows from an alternating-current source 5 through a pull-up resistor 1 put in between a phase conductor and a groundwire 11. The current is branched by a measuring bridge circuit consisting of a potentiometer 2 having the center tap, a neutral conductor 9, a graduated slide-wire 3, and a resistance of the groundwire. Put in the diagonal of the bridge, i.e. between the potentiometer center tap and the groundwire, is a null indicator 4. The slide-wire resistance is varied untill the bridge balance is achieved, which is controlled by the null indicator and the groundwire resistance is defined on the basis of slide-wire resistance value at the moment of the bridge balance.
Patent GE-P201706715-B (GE)
Title: Rolled collagen carrier
Inventor: SCHÖNHOFER WOLFGANG
IPC: A61F13/02
Filed: 2012-05-24
Abstract: Production method of rolled collagen carrier, comprising collagen layer and coating layer containing fibrinogen and thrombin provides moistening of collagen carrier partial part, rolling thereby capture between stretched componentry, and drying of rolled collagen carrier.
Patent CA-1310660-C (CA)
Title: B, -dihydropolyprenyl alcohol derivatives and pharmaceutical composition containing a polyprenyl compound
Inventor: YAMAMOTO MASAICHI
IPC: A61K31/765
Filed: 1983-05-27
Granted: 1992-11-24
Abstract: Abstract of the Disclosure A .beta.,.gamma.-dihydropolyprenyl alcohol derivative having the formula:                             wherein n is an integer of 5 to 7 and R is hydrogen, a lower alkyl group or an aliphatic or aromatic acyl group, is new and useful as a prophylactic therapeutic agent for human and animal immuno-deficiency deseases and phylactic agent against human and animal infectious deseases.  Another disclosed polyprenyl compound is also useful as the same agent.
Patent CA-1308988-C (CA)
Title: Microdilatation probe and system for performing angioplasty in highly stenosed blood vessels
Inventor: CRITTENDEN JAMES F
IPC: A61M25/01
Filed: 1986-05-02
Granted: 1992-10-20
Abstract: MICRODILATATION PROBE AND SYSTEM FOR PERFORMING   ANGIOPLASTY IN HIGHLY STENOSED BLOOD VESSELS     ABSTRACT OF THE DISCLOSURE      A balloon angioplasty system includes a balloon dilatation catheter having an inflation and deflation lumen for the balloon and a main lumen extending the full length of the catheter to provide fluid communication from the proximal to the distal end of the catheter.  A microdilatation probe has a small diameter and can be passed through the main lumen of the dilatation catheter.  The microdilatation probe has a balloon at its distal end which is collapsible to enable it to be passed through the main lumen of the dilatation catheter so that it can be projected distally beyond the distal tip of the dilatation catheter.  The probe balloon is inflatable to a diameter no smaller than the diameter of the uninflated dilatation catheter.  The probe and dilatation catheter are constructed so that fluid communication is maintained through the main lumen of the dilatation catheter while the microdilatation probe extends through the catheter thereby enabling liquids to be infused and pressure measurements to be taken while the probe is in place. The probe may include a distal tip which can hold a preset curve.  The probe is sufficiently rigid to enable the transmission of torque to the distal end to permit steering of the probe by controllably rotating the proximal end of the probe.    In use, a stenosis which cannot be crossed by the dilatation catheter may be enlarged sufficiently to permit passage of the dilatation catheter by first projecting the dilatation probe into the stenosis, then inflating the probe balloon to enlarge the lumen of the stenosis sufficiently to thereafter receive the dilatation catheter.
Patent CA-1303906-C (CA)
Title: Fusee pour projectile
Inventor: GOLAY JEAN-PIERRE
IPC: F42C9/14
Filed: 1986-06-04
Granted: 1992-06-23
Abstract: La fusée comprend un percuteur (8) muni d'une pointe (9) excentrée par rapport à l'axe longitudinal. En faisant tourner le percuteur au moyen du chapeau (2) dans lequel il est monté, on peut placer la pointe (9) en regard de l'une ou de l'autre de deux amorces (10 et 11) présentant des caractéristiques de mise à feu différentes.
Patent CA-1310981-C (CA)
Title: Process for preparing mixture containing 2-campholenylidenbutanol, product produced thereby and perfumery uses thereof
Inventor: WIEGERS WILHELMUS J
IPC: C11B9/00
Filed: 1986-06-26
Granted: 1992-12-01
Abstract: ABSTRACT                          TECHNICAL FIELD     Described is an economical and novel process for preparing a mixture containing 2-campholenylidenbutanol having the structure:                              by means of reacting the compound having the structure:        with hydrogen in the presence of a copper chromite catalyst having the formula:                             CuO.CuCr2O4 as well as uses of such mixtures in augmenting or enhancing the aroma of perfume compositions, colognes and perfumed articles including fabric softener compositions, cosmetic powders and solid or liquid anionic, cationic, nonionic or zwitterionic detergents.
Patent CA-1280989-C (CA)
Title: Process for preparing a very high quality lube base stock oil
Inventor: BORTZ ROBERT W
IPC: C10G45/50
Filed: 1986-06-26
Granted: 1991-03-05
Abstract: PROCESS FOR PREPARING A VERY HIGH QUALITY LUBE BASE STOCK OIL                 ABSTRACT OF THE DISCLOSURE A process for obtaining a very high quality lube base stock is disclosed which comprises:         (a) introducing an aromatic and nitrogen-and sulfur-containing feedstock selected from a dewaxed oil obtained from refining distillate fraction and having a 60 to 700 SUS at 38°C (100°F) and a dewaxed oil obtained from refining vacuum resid and having a 2300 to 2700 SUS at 38°C (100°F), and hydrogen, into a single stage hydrotreating reactor; and, (b) subjecting the feedstock to hydrotreating in the reactor in the presence of a sulfided cobalt/molybdenum hydrotreating catalyst at an average reactor temperature of from 288° to 371°C (550 to 700°F) at a hydrogen partial pressure of 10340 to 20680 kPa.a (1500 to 3000 psia) at the reactor outlet, an LHSV of 0.1 to 1.0 and a hydrogen circulation rate of 53.4 to 445 vol/vol (300 to 2500 SCF per barrel).
Patent CA-1339666-C (CA)
Title: Non-ionic polyol contrast media from ionic contrast media
Inventor: SOVAK MILOS
IPC: C07C237/46
Filed: 1986-08-08
Granted: 1998-02-10
Abstract: Novel non-ionic contrast media are efficiently prepared from generally available ionic contrast media or non-iodinated precursors. Particularly, polyhydroxyhalo-hydrocarbons are employed with a triiodo-substituted acylamido benzoic acids in aqueous weakly basic media to selectively substitute the amido nitrogen, followed by activation of the carboxyl group for amide formation.
Patent CA-1280456-C (CA)
Title: All metal seal for pressure sealing
Inventor: READ NORMAN W
IPC: F16L15/00
Filed: 1986-08-19
Granted: 1991-02-19
Abstract: ALL METAL SEAL FOR PRESSURE SEALING            ABSTRACT     A sealing connection (10) is disclosed which incorporates a metal-to-metal seal.  The pin (22) extends to an end or snout having an outer annular frusto-conical primary sealing surface (36) and an inner frusto-conical secondary sealing surface (38).  The line of intersection between the cones on which primary and secondary sealing surfaces lie on the pin define a hypothetical male sealing circle (40) of predetermined diameter.  The box (24) defines a sealing pocket (32).  The sealing pocket also includes an outer annular frusto-conical primary sealing surface (44) and an inner frusto-conical secondary sealing surface (46).  The line of intersection between the cones on which the sealing surfaces of the box lie defines a hypothetical female sealing circle (48) having a diameter slightly less than the male sealing circle (40).  This insures that the primary sealing surface on the male pin contacts the primary sealing surface on the female box and deflects the male end inward to form an effective metal-to-metal seal between the primary sealing surfaces when the pin engages the pocket.  The primary sealing surface of the male member forms an angle relative to the center line less than the angle between the primary sealing surface of the female member and center line.
Patent CA-1281864-C (CA)
Inventor: BRAUN RALPH V
IPC: D01D5/253
Filed: 1986-09-29
Granted: 1991-03-26
Abstract: ABSTRACT           Nonwoven webs are disclosed which comprise monofilaments or fibers of a thermoplastic material. Basically, the improvement comprises the use of mono-filaments or fibers which have a bilobal shaped cross-section.  Nonwoven webs made according to this invention are particularly suited to be used for liners for disposable diapers as well as wraps for catamenial devices.  Methods are also disclosed for producing such nonwoven webs.
Patent CA-1306441-C (CA)
Title: Irradiating resin-coated optical fiber through light-absorbing fluid material
Inventor: SUGAI MASAKATSU
IPC: C03C25/10
Filed: 1986-10-08
Granted: 1992-08-18
Abstract: Abstract.    The invention provides a method for producing an optical fiber having a surface coating of a UV-curable resin.  The method comprises the following steps.  An optical fiber is spun from a molten preform and a UV curable resin is applied to the surface of the fiber to form a resin coating.  The coated fiber is passed through a container having UV transparent walls containing a gas for promoting the curing of the resin upon exposure to UV light.  A layer of fluid material is provided outside the walls moving past the container at a predetermined flow rate.  The fluid material contains at least two UV light-absorbing materials which have different absorbing wavelengths.  The resin on the fiber is irradiated with UV light through the fluid material and through the container walls.  The quantity of UV light absorbed by the fluid material is adjusted to compensate for build-up of resin on the container walls.
Patent CA-1291108-C (CA)
Title: Decolorization of aqueous saccharide solutions and sorbents therefor
Inventor: FRANK DIETER
IPC: C13B20/12
Filed: 1987-02-27
Granted: 1991-10-22
Abstract: ABSTRACT OF THE DISCLOSURE        The invention is a process for the removal of impuri-ties comprising phenolics, dextrans or amino nitrogen from an aqueous saccharide solution.  The solution is contacted with a sorbent, which itself is also an embodiment of the invention, comprising a cationic nitrogenous surfactant, the molecules of which contain at least one alkyl group of at least 8 carbon atoms, deposited on the surface of a micropo-rous hydrophobic polymeric support.  The deposition is ac-complished by contacting a solution of the surfactant in an appropriate solvent with the support.  The impurities are adsorbed onto the sorbent and the aqueous saccharide solu-tion is removed from contact with the sorbent.  The solvent must be completely miscible with the saccharide solution and the solution of the surfactant in the solvent must have a maximum sorbent wetting rate of at least 100 g/m2?min., and a sorbent bed retention of at least 140%, based on the bed interstitial volume.  The partitioning coefficient of the impurities in the surfactant and solvent deposited on the support, as compared to in water, must be at least 20. The process is extremely effective in removing impurities from saccharide solutions having very high concentrations of impurities, and at very high flow rates.
Patent CA-1328920-C (CA)
Inventor: BLOOMFIELD JOHN F
IPC: H04N5/262
Filed: 1987-04-09
Granted: 1994-04-26
Abstract: ABSTRACT     A video special effects processor including a recirculating frame store is disclosed.  The framestore is constructed of two field stores (86, 94) each with a recirculating path (72, 96; 78, 100).  The special effects processor includes two field interpolaters (64) and the signals are recirculated at field rate, rather than frame rate, to allow full resolution alternate field interpolation, and to prevent inter-field flicker.
Patent CA-1293091-C (CA)
Title: Process for producing high impact styrene resin by continuous bulk polymerization
Inventor: MORITA TSUYOSHI
IPC: C08L21/00
Filed: 1987-07-23
Granted: 1991-12-10
Abstract: ABSTRACT OF THE DISCLOSURE         Disclosed is a process for producing a high impact styrene resin by continuous bulk polymerization and a high impact styrene resin produced by the process.  The resin is produced in the presence of a rubbery polymer in a tubular reactor having static mixing means such as a static mixer without using a stirred tank reactor.  A part of an initial-stage polymer solution is recycled and joined with a feed material solution.  The rubbery polymer and the recycled initial-stage polymer solution are easily divided into fine particles uniformly dispersed.  As a result, the grafting ratio is increased and a high impact styrene resin having excellent strength is obtained in which the grafted rubbery polymer is contained with a narrow particle size distribution.
Patent CA-1280282-C (CA)
Title: Method and apparatus for controlling the gas content of dispensed hot melt thermoplastic adhesive foam
Inventor: KLEIN RICHARD G
IPC: B29B7/72
Filed: 1987-08-11
Granted: 1991-02-19
Abstract: METHOD AND APPARATUS FOR CONTROLLING THE GAS CONTENT OF DISPENSED HOT MELT THERMOPLASTIC ADHESIVE FOAM            Abstract of the Disclosure A method and apparatus for controlling the gas content of dispensed hot melt thermoplastic adhesive foam.  Air or another relatively inert gas is mixed with molten thermoplastic adhesive, and the mixture is pressurized to form a gas and molten adhesive "solution".  When the molten adhesive and gas "solution" is dispensed at atmospheric pressure, the gas is released from "solution" and becomes entrapped in the adhesive in order to form a homogeneous closed cellular adhesive foam.  In order to control the gas content of the dispensed adhesive and gas "solution" in accordance with one preferred embodiment, the pressure drop across a restriction in the flow path of the solution is sensed, and a control circuit controls the addition of gas to the adhesive to maintain the sensed pressure drop at a desired level.  Other sensing techniques can be used to measure a parameter of the dissolved gas/molten adhesive single phase liquid solution which is correlated to the dissolved gas content of the solution and substantially indepen-dent of the molten adhesive content thereof, such as measuring the transmittance of infrared radiation through the gas/adhesive single phase solution at a wavelength relatively heavily absorbed by the gas and unabsorbed by the adhesive.
Patent CA-1280961-C (CA)
Title: Folding piece of furniture
Inventor: BRUNN OSWALD
IPC: A47C4/16
Filed: 1987-08-12
Granted: 1991-03-05
Abstract: Abstract Folding piece of furniture, in particular folding stool, which comprises a seat face and leg pairs arranged laterally of the seat face.  The seat face is provided with a means for mounting one of the two leg pairs and for guiding the other leg pair.  These means permit an adjustment of the inclination of the seat face with respect to the second leg pair and also permit the collapsible piece of furniture to be folded up into an extremely compact form.