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1. 发明授权

US4345015A Dispersion-heat process employing hydrophobic silica for producing spherical electrophotographic toner powder 失效
标题翻译：使用疏水性二氧化硅制造球形电子照相调色剂粉末的分散 - 热处理
公开(公告)号：US4345015A
公开(公告)日：1982-08-17
申请号：US780431
申请日：1977-03-23
申请人： Roelof R. Hendriksma , Wilhelmus J. VanRhijn
发明人： Roelof R. Hendriksma , Wilhelmus J. VanRhijn
IPC分类号： G03G9/087 , G03G9/08 , G03G9/09 , G03G9/097
CPC分类号： G03G9/0902 , G03G9/09716 , Y10T428/2998
摘要： Toner powders having excellent flow and non-agglomerating properties, and being readily removable from the imaging medium in use for indirect electrophotographic copying, are provided in the form of substantially spherical resin particles, containing additives or not as desired, which particles have been formed from irregularly shaped resin particles heated in a liquid dispersion containing hydrophobic silica particles smaller than 100 nanometers in diameter. The toner particles may be thus formed so as to carry on their surface or dispersed therein electrically conductive particles, such as carbon black, rendering them attractable by electrical inductance. The toner can be prepared simply by heating and stirring irregularly shaped resin particles and hydrophobic silica particles in a liquid carrier, such as water or a mixture of water and a water miscible organic solvent, that does not dissolve the resin, with heating to a temperature at which the resin particles soften until they become spherical or almost so, followed by cooling of the dispersion and separating and drying the toner particles.
摘要翻译：提供具有优异的流动性和非附聚性能并且易于从用于间接电子照相复印的成像介质中除去的调色剂粉末以基本上为球形的树脂颗粒的形式提供，其包含添加剂或不需要，该颗粒由在含有直径小于100纳米的疏水二氧化硅颗粒的液体分散体中加热的不规则形状的树脂颗粒。因此，调色剂颗粒可以形成为承载表面或分散在诸如炭黑的导电颗粒中，使得它们可以通过电感吸引。调色剂可以简单地通过加热和搅拌不溶于树脂的液体载体如水或水与水混溶性有机溶剂的混合物中的不规则形状的树脂颗粒和疏水性二氧化硅颗粒，加热至温度其中树脂颗粒变软直到它们变成球形或几乎这样，然后冷却分散体并分离和干燥调色剂颗粒。

2. 发明授权

US4254206A Process for magnetically transferring a powder image 失效
标题翻译：用于磁转移粉末图像的方法
公开(公告)号：US4254206A
公开(公告)日：1981-03-03
申请号：US49203
申请日：1979-06-18
申请人： Willem T. Draai , Josephus W. Rongen
发明人： Willem T. Draai , Josephus W. Rongen
IPC分类号： G03G15/16 , G03G19/00 , B05D1/04 , B05D1/06 , B05D5/00
CPC分类号： G03G19/00 , G03G15/162
摘要： Transfer of a powder image from a material carrying the image, such as a photoconductive material utilized for indirect electrophotographic copying, is effected magnetically by employing permanently magnetizable developing powder for forming the image, magnetizing the powder image, and bringing the powder image into contact with a first receiving support made of soft magnetic material so that this support is magnetizable and possesses a substantially uniform magnetic permeability over its whole surface but becomes magnetized so weakly that the powder image after being transferred to the first receiving support can be transferred readily from it, directly or indirectly, to a final receiving support which may be plain copy paper. The magnetizable material of the first receiving support has a coercive force of less than about 90 Oersteds and a relative magnetic permeability of at least 2.
摘要翻译：通过使用用于形成图像的永久可磁化显影粉末，磁化粉末图像并使粉末图像与粉末图像接触，从携带图像的材料（例如用于间接电子照相复印的光导材料）转移粉末图像由软磁性材料制成的第一接收支撑件，使得该支撑体是可磁化的，并且在其整个表面上具有基本上均匀的磁导率，但被磁化得很弱，使得转印到第一接收支撑体上的粉末图像可以容易地从其传递，直接或间接地到最终的接收支持，可以是纯复印纸。第一接收支撑件的可磁化材料具有小于约90奥斯特的矫顽力和至少为2的相对导磁率。

3. 发明授权

US4223084A Photoconductive element based on mixed zinc oxides 失效
标题翻译：基于混合氧化锌的光导元件
公开(公告)号：US4223084A
公开(公告)日：1980-09-16
申请号：US805308
申请日：1977-06-10
申请人： Wilhelmus M. M. Peeters , Wilhelmus J. van Rhijn , Robert M. G. Timmermans
发明人： Wilhelmus M. M. Peeters , Wilhelmus J. van Rhijn , Robert M. G. Timmermans
IPC分类号： C08K3/00 , C08K3/22 , C08L1/00 , C08L33/00 , C08L33/02 , C08L67/00 , C08L69/00 , G03G5/05 , G03G5/087
CPC分类号： G03G5/087
摘要： A photoconductive element giving prolonged service without appreciable deterioration of its properties as the imaging medium in an indirect electrophotograpic copier is obtained by the provision, on an electrically conductive support that preferably is electrically conductive paper coated with a thin layer of hydroxyethyl cellulose, of a photoconductive layer composed essentially of continuous tone zinc oxide and at least one other photoconductive zinc oxide dispersed in a binder consisting predominantly of an organic polymer having an acid number between 10 and 30, such as an acrylic resin or such resin with 1 to 15% of styrene-modified alkyd resin, at a weight ratio of between 5 and 3 parts of zinc oxide per part of binder. The content of continuous tone zinc oxide preferably is limited to a minor proportion amounting to between 6 and 30% of the total zinc oxide content.
摘要翻译：通过在优选为涂覆有羟乙基纤维素薄层的导电性纸的导电性载体上提供光导电性，得到延长使用寿命而不会明显劣化其作为间接电子照相复印机中的成像介质的光电导元件基本上由连续色调的氧化锌组成的层和至少一种分散在主要由酸值为10至30的有机聚合物组成的粘合剂中的其它光电导氧化锌，例如丙烯酸树脂或具有1至15％苯乙烯的树脂改性的醇酸树脂，每份粘合剂的重量比为5-3份氧化锌。连续调色剂氧化锌的含量优选限于总氧化锌含量的6％至30％的较小比例。

4. 发明授权

US4165171A Electrographic apparatus and process 失效
标题翻译：电子设备和工艺
公开(公告)号：US4165171A
公开(公告)日：1979-08-21
申请号：US723766
申请日：1976-09-16
申请人： Conrardus J. G. Lemmen
发明人： Conrardus J. G. Lemmen
IPC分类号： G03G15/095 , G03G21/00 , B08B3/12 , G03G15/00
CPC分类号： G03G15/095 , G03G21/0052 , G03G2215/1652
摘要： Powder particles blemishing the background of a powder image formed by attraction of toner particles to an electrostatic charge pattern on a photoconductive support surface are removed selectively without loss of the image by subjecting the image bearing surface to a limited electric field generated from a wall defining a suction mouth through which the powder particles attracted by this field from the support are sucked away. In an embodiment involving transfer of the powder image, the suction mouth serves also as a protective device for removing all powder particles from the support surface if a receiving material is not in position at the transfer station to receive the image, for which purpose a high voltage is applied at the suction mouth and/or the support surface is treated ahead of the suction mouth to diminish its charges attracting the image particles. Further, any powder particles remaining on the support surface after transfer of the image are removed by subjecting the support surface at a location beyond the transfer station to an electric field from a wall defining a second suction mouth through which these particles are sucked away.
摘要翻译：通过使图像承载表面受到限定电场产生的限制的电场，通过选择性地去除通过将调色剂颗粒吸引到光导支撑表面上的静电电荷图案而形成的粉末图像的背景的粉末颗粒被选择性地去除，从该支撑体吸引该粉末颗粒的吸入口被抽吸掉。在涉及粉末图像转移的实施例中，如果接收材料在转印站处不接收图像的位置处，则吸嘴也用作用于从支撑表面移除所有粉末颗粒的保护装置，为此目的高在吸嘴处施加电压和/或支撑表面在吸嘴之前处理以减少其吸引图像颗粒的电荷。此外，在图像转印之后残留在支撑表面上的任何粉末颗粒通过使位于超出转印站的位置处的支撑表面从限定了这些颗粒被吸走的第二吸嘴的壁的电场来除去。

5. 发明授权

US4132192A Magnetic brush developing apparatus 失效
标题翻译：磁刷显影装置
公开(公告)号：US4132192A
公开(公告)日：1979-01-02
申请号：US825552
申请日：1977-08-18
申请人： Jacobus R. M. G. Weyers , Gabriel A. M. Burm
发明人： Jacobus R. M. G. Weyers , Gabriel A. M. Burm
IPC分类号： G03G15/09
CPC分类号： G03G15/09
摘要： High operating speeds of the powder brush of a rotating magnetic brush developing apparatus are made feasible, in order to improve the quality of developed images without causing contamination by powder escaping from the brush, by locating an air deflecting partition, for instance in the form of a plate arranged tangentially relative to the rotating sleeve of the apparatus, so that the partition will guide away an air stream entrained by the moving powder brush before it reaches the location where powder is supplied to the brush. The partition advantageously delimits a chamber formed over a sector of the powder brush, from which air carried past the partition in the powder brush and then expelled from it will escape in a controlled manner enabling recapture of the powder particles carried by such air before the air is discharged.
摘要翻译：旋转式磁刷显影装置的粉刷的高操作速度是可行的，以便提高显影图像的质量，而不会由于从刷子逸出的粉尘的污染，通过定位空气偏转隔板，例如以相对于装置的旋转套筒切向布置的板，使得分隔件将在移动的粉末刷到达将粉末供应到刷子的位置之前引导移走的气流。分隔件有利地限定了形成在粉刷的扇形部分上的腔室，空气通过粉末刷中的分隔物从其中被排出，并以可控的方式排出，从而能够在空气之前重新捕获由这种空气携带的粉末颗粒出院

6. 发明授权

US4095887A Detector circuit for electrophotographic copier 失效
标题翻译：电子照相复印机检测电路
公开(公告)号：US4095887A
公开(公告)日：1978-06-20
申请号：US710785
申请日：1976-08-02
申请人： Jozef Marie van Herten , Bastiaan Bernard Boele Eertink
发明人： Jozef Marie van Herten , Bastiaan Bernard Boele Eertink
IPC分类号： G03G15/00 , G03G21/14 , G03G21/00
CPC分类号： G03G21/145
摘要： In electrophotographic copying apparatus utilizing a photoconductive belt having markings regularly spaced apart on its back side for control of the copying operations by moving past a detector comprising a light source and a photoelement to generate signal pulses, the detector is made to perform reliably notwithstanding variations of the sensitivity of the photoelement, or of the light emission, by the provision of a circuit for emitting a detector signal proportional to the amount of light sensed by the photoelement together with a signal modifying circuit that maintains an output signal level corresponding to the average value of the detector signal and a control circuit responsive to the output signal level for controlling the intensity of the light source.
摘要翻译：在使用具有在其背面规则间隔开的标记的感光带的电子照相复印设备中，通过移动通过包括光源和光电元件的检测器来控制复印操作以产生信号脉冲，使得检测器尽可能可靠地执行通过提供用于发射与光电元件感测到的光量成比例的检测器信号的电路，以及维持与平均值相对应的输出信号电平的信号修正电路，照明元件的灵敏度或发光的灵敏度的检测器信号和响应于输出信号电平的控制电路来控制光源的强度。

7. 发明授权

US4061422A Light reflecting casing 失效
标题翻译：光反射套管
公开(公告)号：US4061422A
公开(公告)日：1977-12-06
申请号：US661171
申请日：1976-02-25
申请人： Petrus T. J. Geurts , Albert J. Wittenberg
发明人： Petrus T. J. Geurts , Albert J. Wittenberg
IPC分类号： G02B7/198 , F21V7/00 , F21V17/16 , G02B7/182 , G03B27/54 , G02B5/10
CPC分类号： F21V17/16 , F21V17/162 , F21V7/005 , G03B27/542
摘要： A light reflecting casing especially suitable for use in photocopiers is provided by means of a resilient foil, e.g. of stainless steel or of a metallized flexible plastic material, which is held elastically curved with a reflecting side thereof directed toward the light and is shaped exactly to the form of a developable ruled surface by a plurality of support members engaging its other side.
摘要翻译：特别适用于复印机的光反射套管通过弹性箔片提供。不锈钢或金属化柔性塑料材料，其被保持弹性弯曲，其反射面指向光，并且通过多个与其另一侧接合的支撑构件精确地成形为可显影刻度表面的形状。

8. 发明授权

US3995585A Liquid application-device 失效
标题翻译：液体应用装置
公开(公告)号：US3995585A
公开(公告)日：1976-12-07
申请号：US587538
申请日：1975-06-17
申请人： Petrus J. G. Schuurmans
发明人： Petrus J. G. Schuurmans
IPC分类号： B05C1/08 , G03C1/74 , G03D3/00 , G03D5/06
CPC分类号： G03D5/067
摘要： A device which is useful in development of diazotype paper said device comprising a liquid application roller, a dosing roller cooperating with it and one or more pressing organs to bring the diazotype material into contact with the application roller. In order to reduce liquid transport via the extremities of the rollers toward the pressing organs, the dosing roller is provided with limiting elements which are installed at the exhaust side of the dosing roller near the nip between this roller and the application roller and each limiting element consists of at least five plates, installed perpendicularly on the shaft of the dosing roller of which plates one side is closely adjacent to the cylinder surface of the dosing roller. The limiting elements transport superfluous liquid from said nip between the rollers toward the liquid reservoir and thus they inhibit the liquid transport toward the pressing organs which would wet the rear side of the diazotype material.
摘要翻译：一种用于开发重氮型纸的装置，所述装置包括液体施加辊，与其配合的计量辊和一个或多个按压器官，以使所述重氮型材料与施加辊接触。为了减少通过辊的端部朝向按压器具的液体输送，配量辊设置有限制元件，该限制元件安装在定量辊的排出侧，靠近该辊和施加辊之间的辊隙，并且每个限制元件由至少五个板组成，垂直地安装在计量辊的轴上，其中板的一侧紧密靠近计量辊的气缸表面。限制元件将多余液体从辊之间的辊隙传送到液体储存器，因此它们阻止液体转移到将浸润二氮类材料的后侧的按压器官。

9. 发明授权

US4321757A Drying apparatus and method 失效
标题翻译：干燥装置及方法
公开(公告)号：US4321757A
公开(公告)日：1982-03-30
申请号：US825688
申请日：1977-08-18
申请人： Laurens van der Blom
发明人： Laurens van der Blom
IPC分类号： B01D53/44 , B01D53/74 , D06B9/06 , F26B13/00 , F26B13/02 , F26B13/10 , F26B25/00 , G03C1/74 , F26B3/00
CPC分类号： G03C1/74 , D06B9/06 , F26B13/10 , F26B25/006 , G03C2001/7451 , Y02P70/641
摘要： A drying apparatus for drying material treated with liquid by heating and circulating a drying gas and for recovering vaporized liquid absorbed by a drying gas comprises at least one chamber unit which is essentially completely closed to the external atmosphere, a heating system in the chamber, a condensing system located in the chamber lowermost portion, means for guiding the material, in the form of a web, through the chamber through slot-like inlet and outlet openings such that the web is maintained free of contact at its wet surface, and a drying gas circulation system which divides the drying gas into several streams. The gas circulation system divides or splits the drying gas into a main-stream and a smaller side-stream, and repeatedly transports the main-stream past the web of material and transports the side-stream to and through the condensing system, and from the condensing system back to rejoin the main-stream, by circulation of the gas through elongated slot-like openings, formed by positioning and dimensioning of the web of material with regard to the side walls and the bottom of the chamber. A sealing system comprises at least one pair of rotatable rollers, positioned in proximity to each other, in or at a short distance from the opening made in an outer wall of a drying apparatus chamber, and positioned in such a way with regard to each other and to the web of material to pass through the drying apparatus, that the web runs between the rollers and partially over the circumference of each. Elastic sealing lips contact and press against the surfaces of the rollers to seal the space between the pair of rollers and the opening in the wall. A method of drying in the apparatus utilizes reduced oxygen content and maintenance of the dew point in the drying chamber at high levels.
摘要翻译：用于通过加热和循环干燥气体并用于回收由干燥气体吸收的蒸发的液体来干燥由液体处理的材料的干燥装置包括至少一个室单元，其基本上完全与外部大气封闭，室中的加热系统，位于腔室最下部分的冷凝系统，用于通过狭缝状入口和出口开口引导纤维网形式的材料通过腔室的装置，使得纤维网在其湿润表面保持不接触，并且干燥气体循环系统将干燥气体分成若干流。气体循环系统将干燥气体分成或分解成主流和较小的侧流，并且将主流重复地输送通过材料幅材并将侧流输送到并通过冷凝系统，并且从冷凝系统通过将气体通过细长的槽状开口循环而重新连接主流，通过相对于侧壁和室的底部定位和确定材料幅材而形成。密封系统包括至少一对可旋转的辊，它们彼此靠近地设置在与干燥设备室的外壁中形成的开口处或距离较短的距离处，并且以相对于彼此的方式定位以及通过干燥装置的材料卷材，幅材在辊之间延伸并部分地在每个辊的圆周上。弹性密封唇接触并压靠辊的表面以密封一对辊和壁之间的空间。该设备中的干燥方法利用较低的氧含量和干燥室中露点的维持。

10. 发明授权

US4265988A Self-sticking adhesive tape 失效
标题翻译：自粘胶带
公开(公告)号：US4265988A
公开(公告)日：1981-05-05
申请号：US13089
申请日：1979-02-21
申请人： Cornelis P. H. Kessels
发明人： Cornelis P. H. Kessels
IPC分类号： C09J7/02 , G03G5/08 , G03G5/00 , B32B5/16
CPC分类号： C09J7/0296 , C09J2201/162 , Y10T428/25 , Y10T428/263 , Y10T428/2848 , Y10T428/2891 , Y10T428/31797
摘要： A self-sticking adhesive tape is provided which is particularly effective for joining free ends of a photoconductive belt at a side of the belt presenting a photoconductive layer of ZnO dispersed in a binding agent. The tape comprises a polyester support film provided on one side with a flexible electrically conductive layer to prevent retention of electrostatic charges and provided on the other side with an adhesive layer, made sticky preferably by an acrylate resin, having (a) an adhesive force of at least 200 Newton per meter and (b) a shear tolerance of not more than 1 mm, as determined by tests of the tape after its adhesive side has been adhered to such photoconductive layer. The conductive layer preferably consists essentially of a dispersion of carbon particles in a polymeric binder such as 60:40 copolymer of ethylene-terephthalate and ethylene-isophthalate, and the adhesive layer of a dried coating of an anionic dispersion in water of a finely divided acrylic ester containing carboxyl groups.
摘要翻译：提供了一种自粘胶带，其特别有效地用于连接呈现分散在粘合剂中的ZnO的光电导层的带的一侧的光电导带的自由端。胶带包括在一侧具有柔性导电层的聚酯支撑膜，以防止静电荷的保留，并且在另一侧上设置粘合剂层，优选由丙烯酸酯树脂粘合，所述粘合剂层具有（a）粘合力至少200牛顿每米，（b）剪切公差不大于1mm，如通过粘合剂粘合到这种光电导层之后的带的测试所确定的。导电层优选基本上由碳粒子在聚合物粘合剂中的分散体组成，例如乙烯 - 对苯二甲酸酯和间苯二甲酸乙二醇酯的60:40共聚物，以及细分丙烯酸酯的阴离子分散体在水中的干燥涂层的粘合剂层含羧基的酯。

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