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1. 发明授权

US4415906A Magnetic recording heads 失效
标题翻译：磁记录头
公开(公告)号：US4415906A
公开(公告)日：1983-11-15
申请号：US284045
申请日：1981-07-17
申请人： Houshang Rasekhi , Alfred M. Nelson , James P. Johnston , Frederick A. Rupinski , Walter B. Hatfield, Jr.
发明人： Houshang Rasekhi , Alfred M. Nelson , James P. Johnston , Frederick A. Rupinski , Walter B. Hatfield, Jr.
IPC分类号： B41J2/43 , G03G19/00 , G11B5/17 , G01D15/12
CPC分类号： B41J2/43 , G03G19/00 , G11B5/17
摘要： There is provided improvements in magnetic recording head arrangements, such as may employ multiplexing, which provide substantially higher speeds of recording and require fewer components. The recording head is comprised of a compact, four-layer laminate structure mountable on a supporting substrate, in which the entire array of recording elements forms a flexible, uniquely arranged first layer, the return paths of the recording elements comprise a flexible second layer which has the dual utility of substantially reducing the recording element circuit inductance, the third layer is a rigid printed circuit board structure providing a mount for the blocking diodes and the conductive paths of the associated multiplexing scheme, and the fourth layer is a ground plane located between the first and third layers and insulated therefrom for further reducing the inductance associated to the circuitry of the first layer and for substantially minimizing the circuit inductance of the third layer.
摘要翻译：提供磁记录头装置的改进，例如可以采用多路复用，其提供显着更高的记录速度并且需要更少的组件。该记录头包括可安装在支撑基底上的紧凑的四层层压结构，其中记录元件的整个阵列形成柔性的，唯一排列的第一层，记录元件的返回路径包括柔性第二层，具有大大降低记录元件电路电感的双重效用，第三层是刚性印刷电路板结构，为阻塞二极管和相关复用方案的导电路径提供安装，而第四层是位于第一和第三层并与之绝缘，用于进一步减小与第一层的电路相关联的电感，并且用于使第三层的电路电感基本上最小化。

2. 发明授权

US4381966A Process for fabricating recording heads for magnetography 失效
标题翻译：制作磁光记录头的方法
公开(公告)号：US4381966A
公开(公告)日：1983-05-03
申请号：US297610
申请日：1981-08-31
申请人： Houshang Rasekhi , Alfred M. Nelson
发明人： Houshang Rasekhi , Alfred M. Nelson
IPC分类号： G11B5/29 , C23F1/02
CPC分类号： G11B5/295
摘要： A method of fabricating from a single piece of copper foil the extremely fragile recording element structure of a multi-channel magnetic recording head having a linear array of bi-metal recording elements, in which the elements are comprised of elongated substantially parallel finger portions terminating in a common return, with each having a minutely thinned down recording zone. For high resolution recording head structures, the dimensions of the elements at the recording zone may typically be as thin as 0.1.times.10.sup.-3 inches with a width of 1.5.times.10.sup.-3 inches and length of 3.5.times.10.sup.-3 inches, where the total length of the recording elements may nevertheless be as long as three inches. The process comprises an etching technique and the application of one or more supports at appropriate times in the fabrication to protect the structure at its most vulnerable times. Full masking and deposition of bi-metal layer areas is accomplished prior to any etching steps to avoid, for example, having to re-register the recording element design on one side of the copper foil relative to the other.
摘要翻译：一种由单片铜箔制造的具有双金属记录元件线性阵列的多通道磁记录头的非常脆弱的记录元件结构的方法，其中元件由细长的基本平行的指状部分组成，终止于一个共同的回报，每个都有一个细微变薄的记录区。对于高分辨率记录头结构，记录区域上的元件的尺寸通常可以是0.1×10 -3英寸，宽度为1.5×10 -3英寸，长度为3.5×10 -3英寸，其中总长度记录元件可能长达三英寸。该方法包括蚀刻技术和在制造中的适当时间应用一个或多个支撑件以在其最脆弱的时刻保护结构。在任何蚀刻步骤之前完成双金属层区域的完全掩蔽和沉积，以避免例如必须在铜箔的一侧上重新对准记录元件设计。

3. 发明授权

US4392179A Apparatus and method for separating adhering media electrostatically 失效
标题翻译：用于静电分离粘合介质的设备和方法
公开(公告)号：US4392179A
公开(公告)日：1983-07-05
申请号：US281747
申请日：1981-07-09
申请人： Alfred M. Nelson , Houshang Rasekhi
发明人： Alfred M. Nelson , Houshang Rasekhi
IPC分类号： G03G15/16 , G01D15/00 , G03G15/22 , G03G19/00 , H01F13/00
CPC分类号： B82Y15/00 , G01D15/00
摘要： An apparatus and method are disclosed for electrostatically separating a first medium such as a magnetic tape from a second medium such as paper following transfer of images from the tape to the paper. The apparatus includes a movable member or platen disposed for moving the tape into contact with and away from the paper, and a voltage source coupled across predetermined portions of the tape and platen. The method includes the step of creating an electrostatic force between the tape and platen sufficient to overcome adherence of the tape to the paper during contact of the tape with the paper, facilitating separation of the tape from the paper as the platen is moved away from the paper following image transfer. Separation is accomplished substantially independent of tape tension. This permits operation with significantly less tape tension which, in turn, preserves tape integrity and provides for reduced tape breakage and misregistration of tape with paper, more effective cleaning of the tape, and less wear of the tape and the tape cleaning devices.
摘要翻译：公开了一种用于在将图像从带传送到纸张之后静电分离诸如磁带的第一介质与诸如纸之类的第二介质的装置和方法。该装置包括可移动构件或压板，其设置用于使胶带与纸张接触并远离纸张;以及电压源，其耦合在带和压板的预定部分上。该方法包括在带和压板之间产生静电力的步骤，足以在带与纸接触期间克服带与纸的粘附，从而当压板从纸张移开时便于纸与纸分离纸张继续图像传输。分离完全基本上与带张力无关。这允许以明显更小的带张力操作，这进而保持了带的完整性，并且减少了带纸的带断裂和误排，更有效地清洁带，以及较少的带和带清洁装置的磨损。

4. 发明授权

US4378754A Toner applicator system for magnetography 失效
公开(公告)号：US4378754A
公开(公告)日：1983-04-05
申请号：US290274
申请日：1981-08-05
申请人： Houshang Rasekhi , Alfred M. Nelson , John S. Kula, Jr. , John J. Sudano
发明人： Houshang Rasekhi , Alfred M. Nelson , John S. Kula, Jr. , John J. Sudano
IPC分类号： G03G15/09 , G03G19/00
CPC分类号： G03G19/00 , G03G15/09
摘要： In a high-quality, high-speed magnetographic apparatus, an arrangement for developing the latent magnetic images of a readily-imagable magnetizable medium (in particular a relatively high-coercivity medium) with magnetically attractable toner particles. A rotatable toner developer is positioned proximate to the medium to define therebetween a toning zone, with the developer being structured to magnetically provide toner particles in contact with the medium at the toning zone and to impart to the toner particles at least at and approaching the toning zone a direction of movement relative to the medium which is in opposition to the latter. A concentration of substantially fluidized and magnetically confined toner particles is thus provided which is urged into contact with the medium for effectively developing the latent images even with the medium moving at high speed relative to the developer and without adversely affecting the latent magnetic images of the medium. A magnetic field enhancer is positioned proximate to the toning zone on the opposite side of the magnetic medium from the developer, which effectively enhances the shape of the magnetic field at the toning zone in the general direction toward the magnetic medium thereby increasing the magnetically generated toner contact pressure. A scavenger arrangement is included for collecting any air-borne toner, for removing excess toner residing on the developed image areas of the medium, and for removing stray toner particles residing on the non-imaged areas and the back of the medium. The continuity of toning provided to the medium is facilitated by an eccentrically operated toner rake arrangement situated in the toner bin for urging the toner particles in the toner bin toward the developer. Alternatively, the toner can be rendered fluidized by a oscillating floor or wall arrangement resiliently coupled to the remainder of the toner bin. The developer is provided with a channel arrangement governing the approach of the toner particles thereto which are received from the action of say the toner rake. The channel arrangement ensures that the toner is introduced to the developer in a well defined narrow band the width dimension of which is commensurate with the width of the desired imaged portion of the magnetic medium. The developer station is particularly effective in both a substantially horizontal orientation, underneath the magnetic medium, and at a substantially vertical angle and proximate to the outside surface of the medium.

5. 发明授权

US4410896A Apparatus for preventing removal of toner from transferred images 失效
标题翻译：用于防止从转印图像中去除调色剂的装置
公开(公告)号：US4410896A
公开(公告)日：1983-10-18
申请号：US253997
申请日：1981-04-13
申请人： Alfred M. Nelson , Houshang Rasekhi
发明人： Alfred M. Nelson , Houshang Rasekhi
IPC分类号： G03G15/14 , G03G15/16 , G01D15/12
CPC分类号： G03G15/163
摘要： A magnetographic copier system in which images recorded on a magnetic tape are developed by toner with magnetic properties and where the toner particles are also electrostatically charged. A piece of paper is brought into contact with the tape at a toner transfer station and a first momentary electric field of the proper polarity and orientation is then used to transfer the developed toner images from the tape to paper. The paper and tape segments with the images are then separated and are moved away from the toner transfer station. An electrode external to the transfer station is then used to apply another electric field of the same polarity to the developed toner images on the paper to prevent the toner from being disturbed by the next occurrence of the first electric field for subsequent toner images being transferred to the paper.
摘要翻译：一种磁光复印机系统，其中记录在磁带上的图像由具有磁性的调色剂显影，并且调色剂颗粒也被静电充电。一片纸在调色剂转印站与带接触，然后使用适当极性和取向的第一瞬时电场将显影的调色剂图像从带转印到纸上。然后将具有图像的纸和带段分离，并将其从调色剂转印站移开。然后，转移站外部的电极用于向纸张上显影的调色剂图像施加相同极性的另一电场，以防止调色剂被下一次出现的第一电场干扰，以使随后的调色剂图像转印到论文。

6. 发明授权

US4393389A Magnetic toner transfer method and apparatus 失效
标题翻译：磁性调色剂转印方法及装置
公开(公告)号：US4393389A
公开(公告)日：1983-07-12
申请号：US228526
申请日：1981-01-26
申请人： Houshang Rasekhi , Alfred M. Nelson
发明人： Houshang Rasekhi , Alfred M. Nelson
IPC分类号： G03G13/16 , G03G15/16 , G03G19/00 , G01D15/06
CPC分类号： G03G15/1665 , G03G19/00
摘要： Magnetographic printing, method and apparatus are used to generate letter-quality, relatively high speed transfer of magnetic toner particles from a magnetic tape to paper. A pretransfer force (f.sub.1) holding the toner to the tape is established which may be magnetic, or both magnetic and electrostatic in nature. The transfer operation employs relatively high speed approaching movement of the tape toward the paper in a controlled manner such that forces (f.sub.2) exerted on the toner particles due to the rapidly closing movement including forces created by air currents are collectively less than the toner-holding force (f.sub.1) for any instantaneous separation between the tape and paper. The operation may include the use of a bias voltage to generate a component of the electrostatic holding force and the use of a corotron to deposit electrostatic charge on the magnetic toner particles. The controlled movement of the tape toward the paper is achieved with a cam in one embodiment and with a solonoid in another embodiment.
摘要翻译：磁照相印刷，方法和装置用于产生磁性调色剂颗粒从磁带到纸的文字质量，相对较高速度的转印。建立了将调色剂保持在胶带上的预转印力（f1），其可以是磁性的，或磁性和静电性质。转印操作采用相对较高的速度以受控方式朝向纸张接近移动，使得由于包括由气流产生的力的快速关闭运动而施加在调色剂颗粒上的力（f2）集中地小于调色剂保持力（f1）用于纸和纸之间的任何瞬间分离。操作可以包括使用偏置电压来产生静电保持力的分量，以及使用旋光子将静电电荷沉积在磁性调色剂颗粒上。在一个实施例中，带子朝向纸的受控运动是通过凸轮实现的，并且在另一个实施例中是用类固醇实现的。

7. 发明授权

US4412263A Recording head protective overlay and cleaning arrangement 失效
标题翻译：记录头保护盖和清洁布置
公开(公告)号：US4412263A
公开(公告)日：1983-10-25
申请号：US290272
申请日：1981-08-05
申请人： Alfred M. Nelson , Houshang Rasekhi , Ronald J. Cieplik
发明人： Alfred M. Nelson , Houshang Rasekhi , Ronald J. Cieplik
IPC分类号： G03G19/00 , G11B5/40 , G11B5/41 , G11B23/04 , G11B23/50
CPC分类号： G11B23/049 , G03G19/00 , G11B5/40 , G11B5/41
摘要： A recording head protective overlay arrangement with an alarm capability is provided. The protective overlay is continuously replenishable between the recording surface of the recording head and the recording medium and is movable in a direction opposite to that of the recording medium so as to provide a cleaning function as well as a wear-preventive function. A dispenser cartridge housing the protective overlay is provided which is specially designed to closely conform to the recording head. A pivotable cartridge holder is included for enabling the cartridge to be inserted in a position remote from the recording head and pivotable into an operative position with the recording head. The tape medium itself and various components operatively associated therewith are pivotably mounted, to provide movement of the medium into intimate operative contact with the overlay and the recording head.
摘要翻译：提供具有报警功能的记录头保护覆盖布置。保护层可以在记录头的记录表面和记录介质之间连续地补充，并且可以在与记录介质相反的方向上移动，以提供清洁功能和防磨损功能。提供容纳保护覆盖层的分配器盒，其特别设计成与记录头紧密地一致。包括可枢转的盒架，用于使盒能够插入远离记录头的位置并且可旋转到与记录头的操作位置。带介质本身和与其可操作地相关联的各种部件可枢转地安装，以提供介质与覆盖层和记录头的紧密操作接触的运动。

8. 发明授权

US4399422A Magnetizing apparatus 失效
标题翻译：磁化装置
公开(公告)号：US4399422A
公开(公告)日：1983-08-16
申请号：US297672
申请日：1981-08-31
申请人： Alfred M. Nelson , Houshang Rasekhi , John J. Sudano
发明人： Alfred M. Nelson , Houshang Rasekhi , John J. Sudano
IPC分类号： G11B5/852 , H01F13/00
CPC分类号： G11B5/852 , H01F13/00
摘要： Apparatus is provided for uniformly premagnetizing magnetic media, such as wide magnetic tapes and/or for substantially uniformly orienting the magnetic particles in the slurry of the magnetizable layer of magnetic media during their formation. Premagnetization constitutes magnetizing the medium in a preselected direction, such as the transverse direction (i.e., perpendicular to the intended direction of movement of the recording medium past a recording head but in the plane of the medium), prior to magnetically recording information thereon. The apparatus comprises a number of predeterminably arranged small magnets disposed proximate to the medium which obviates the need for large, expensive, heavy magnets and magnet systems. A continuous transverse saturation level of magnetization is provided in the medium with virtually no vertical or longitudinal magnetic components or anomalous effects. A preferred arrangement comprises a number of wafer magnets each having an elongated edge of a pole face disposed proximate to the medium and at a preselected acute angle relative to the direction of intended movement of the magnetic medium.
摘要翻译：提供了用于均匀预磁化磁介质（例如宽磁带）和/或用于在其形成期间将磁性介质的可磁化层的浆料中的磁性颗粒基本均匀定向的装置。在磁性地记录信息之前，预磁化构成以预选的方向，例如横向方向（即，垂直于记录介质经过记录头的移动方向，但在介质的平面内）磁化介质。该装置包括靠近介质设置的许多可预定布置的小磁体，其消除了对大型，昂贵的重磁体和磁体系统的需要。在介质中提供连续的横向饱和磁化水平，实际上没有垂直或纵向磁性成分或异常效应。优选的布置包括多个晶片磁体，每个晶片磁体各自具有靠近介质设置的极面的细长边缘，并且相对于磁介质的预期移动方向以预选的锐角。

9. 发明授权

US07588202B2 Apparatus for milling material 有权
标题翻译：铣削材料的设备
公开(公告)号：US07588202B2
公开(公告)日：2009-09-15
申请号：US11623623
申请日：2007-01-16
申请人： Houshang Rasekhi
发明人： Houshang Rasekhi
IPC分类号： B02C18/16
CPC分类号： B02C19/0056 , A61F2/4644 , A61F2002/4645 , B02C19/20 , Y10S241/606
摘要： An apparatus for milling material is disclosed. The apparatus may include a base surface. The base surface may include a first cutting tooth for milling the material. The base surface may include a first aperture of a predetermined diameter. The first aperture may be disposed adjacent the first cutting tooth so that material of less than the predetermined diameter may pass through the first aperture. The apparatus may include a trimming member. The trimming member may include a first rib for interfacing with the first cutting tooth to facilitate the milling of the material. The base surface and the trimming member may move relative to each other. The base surface and the trimming member may interface to mill material placed on the base surface.
摘要翻译：公开了一种用于研磨材料的设备。该装置可以包括基面。基面可以包括用于铣削材料的第一切削齿。基面可包括预定直径的第一孔。第一孔可以布置成与第一切割齿相邻，使得小于预定直径的材料可以穿过第一孔。该装置可以包括修整构件。修剪构件可以包括用于与第一切割齿接合的第一肋，以便于材料的铣削。基面和修整构件可以相对于彼此移动。基面和修剪构件可以与放置在基面上的材料接合。

10. 发明授权

US4405960A Magnetographic recording heads 失效
标题翻译：磁记录头
公开(公告)号：US4405960A
公开(公告)日：1983-09-20
申请号：US268934
申请日：1981-06-01
申请人： George G. Pick , Houshang Rasekhi
发明人： George G. Pick , Houshang Rasekhi
IPC分类号： B41J2/42 , B41J2/43 , G03G19/00 , G11B5/127 , G11B5/17 , G11B5/187 , G11B5/16
CPC分类号： G03G19/00 , B41J2/43 , G11B5/127 , G11B5/17 , G11B5/187
摘要： Improved recording head structures having lower recording current requirements and planar construction which are mass-producible with high reliability. Associated with the conductors constituting the recording elements are one or more selected materials, predeterminably situated, for substantially reducing the reluctance of the magnetic writing circuit associated to the conductor recording zone. The material is arranged to at least partially define the recording zones and to shield the recording medium from the magnetic fields associated to the recording elements outside of the recording zones. Through appropriate choice and placement of such material, a pre-biasing effect may be achieved thus enabling further reduction in recording currents.
摘要翻译：具有较低记录电流要求的改进的记录头结构和具有高可靠性大量生产的平面结构。与构成记录元件的导体相关联的是可预定地定位的一种或多种所选择的材料，用于大大减少与导体记录区相关的磁性写入电路的磁阻。该材料被布置成至少部分地限定记录区域并且将记录介质从与记录区域外部的记录元件相关联的磁场屏蔽。通过适当地选择和放置这种材料，可以实现预偏置效果，从而能够进一步降低记录电流。

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