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1. 发明授权

US4888710A Pen tip position detector 失效
标题翻译：笔尖位置检测器
公开(公告)号：US4888710A
公开(公告)日：1989-12-19
申请号：US131984
申请日：1987-12-11
申请人： John C. Venthem , James A. Parnell , Mark Hill , Dan R. Poole
发明人： John C. Venthem , James A. Parnell , Mark Hill , Dan R. Poole
IPC分类号： B43L13/02 , G01D9/40
CPC分类号： B43L13/024 , G01D9/40
摘要： Apparatus, for use in conjunction with a digital plotter incorporating controlled multiple markers to create displays, for determining the position of the markers along axes of movement, comprises a detector assembly disposed at a fixed axial position relative to the plotter, and a driver for moving a marker relative to the detector assembly. The detector assembly includes means for detecting movement of the marker relative thereto and producing signals indicative of the movement. A processor interprets the signals for determining an axial position of the marker and optionally detects and compensates for a variation in the axial position of a current marker relative to the axial position of a prior marker.

2. 发明授权

US5267802A Ribbon cassette storage and transfer apparatus for a printer 失效
标题翻译：用于打印机的色带盒式存储和传送装置
公开(公告)号：US5267802A
公开(公告)日：1993-12-07
申请号：US920116
申请日：1992-07-24
申请人： James A. Parnell , John C. Venthem , Charles D. Zinsmeyer
发明人： James A. Parnell , John C. Venthem , Charles D. Zinsmeyer
IPC分类号： B41J32/00 , B41J35/28
CPC分类号： B41J35/28 , B41J32/00
摘要： Apparatus is disclosed for use with printers (or plotters) for storing and transferring ink-containing ribbon cassettes between a print head and a storage location. The printers (or plotters) are of the type which include a print head that is not as wide as the width of the medium to be printed on so that the print head has to be moved to print (or plot) across the full width of the medium. The apparatus automatically removes a cassette mounted to the movable carriage to which the print head is also mounted and deposits it in the storage station, and automatically removes a selected cassette from the storage station and deposits it on the print carriage. The apparatus includes cassette holders at the storage location and a cassette holder mounted to the print carriage. The storage station is positioned in or adjacent the path of travel of the print carriage, and the apparatus holding the cassettes at the storage station may be indexed to position a particular cassette holder into alignment with the cassette holder mounted to the carriage. The cassette holders have cooperating structure which automatically engage each other when the holders are aligned and are moved one into the other to automatically and directly transfer a cassette from one holder to the other.
摘要翻译：公开了与打印机（或绘图仪）一起用于在打印头和存储位置之间存储和转移含墨色带盒的设备。打印机（或绘图仪）的类型包括打印头不如要打印的介质的宽度那么宽，以便打印头必须被移动以打印（或绘制）横跨整个宽度的介质。该装置自动移除安装在可移动托架上的盒体，打印头也安装在该盒体上，并将其存放在存储站中，并自动从存储站中移除所选择的盒子并将其存放在打印托架上。该装置包括在存放位置的盒座和安装在印刷架上的盒座。存储站位于打印托架的行进路径中或其附近，并且将保存在存储站处的盒的设备可以被索引，以将特定的盒座定位成与安装到托架的盒座保持一致。盒保持器具有协作结构，当保持器对准并且一个一个地移动到另一个中时自动地彼此接合，从而将盒从一个保持器自动地直接传送到另一个。

3. 发明授权

US5214448A Belt-drive tensioning system which uses a pivoting member 失效
标题翻译：使用旋转构件的皮带传动张紧系统
公开(公告)号：US5214448A
公开(公告)日：1993-05-25
申请号：US738573
申请日：1991-07-31
申请人： John C. Venthem
发明人： John C. Venthem
IPC分类号： G01D15/24
CPC分类号： G01D15/24
摘要： A belt drive tensioning system for a motor drive positioning system, especially for X-Y digital plotters. The tensioning system employs spring-loading involving pivoting motion of a motor-mounted plate relative to a fixed plate to accurately preset and maintain constant the desired belt tension. A preferred embodiment provides a self-contained modular unit using two pivot bushings interconnecting the two plates.
摘要翻译：一种用于电机驱动定位系统的皮带传动张紧系统，特别适用于X-Y数字绘图仪。张紧系统使用弹簧加载，其涉及马达安装板相对于固定板的枢转运动，以精确地预设并保持所需的带张力恒定。优选实施例提供使用两个互连两个板的枢轴衬套的独立模块单元。

4. 发明授权

US5333005A Apparatus for raising and lowering plotter marking devices 失效
标题翻译：用于升降绘图仪标记装置的装置
公开(公告)号：US5333005A
公开(公告)日：1994-07-26
申请号：US728096
申请日：1991-07-10
申请人： John C. Venthem , James A. Parnell
发明人： John C. Venthem , James A. Parnell
IPC分类号： G01D15/22 , G01D5/02
CPC分类号： G01D15/22
摘要： Apparatus especially X-Y plotters having a marking device for marking a surface. A support is provided for supporting the marking device. The support is movable along an axis of the housing while the marking device can be selectively raised and lowered relative to the surface. The raising and lowering is carried out by means of a flexible driving element, for example, a cable, connected to a pivotable link on the support and activated by a motor. The marking device support is freely translatable relative to the flexible driving element.
摘要翻译：装置尤其是具有用于标记表面的标记装置的X-Y绘图仪。提供支撑标记装置的支撑件。支撑件可以沿着壳体的轴线移动，同时标记装置可以相对于表面选择性地升高和降低。上升和下降通过柔性驱动元件（例如，连接到支撑件上的可枢转连杆并由电动机激活）的电缆来执行。标记装置支撑件可相对于柔性驱动元件自由平移。

5. 发明授权

US5405205A Sheet medium transport system, particularly for printers and plotters 失效
标题翻译：片材介质输送系统，特别适用于打印机和绘图仪
公开(公告)号：US5405205A
公开(公告)日：1995-04-11
申请号：US278556
申请日：1994-07-21
申请人： John C. Venthem , Marlan L. Schmidt , James A. Parnell
发明人： John C. Venthem , Marlan L. Schmidt , James A. Parnell
IPC分类号： B41J15/16 , B41J13/02
CPC分类号： B41J15/16
摘要： The invention disclosed herein provides a method and apparatus for counteracting the effects of a localized drag on a sheet medium as it is being moved by a drive system, for example, in a printer or plotter to prevent misregistration of the sheet medium with the X-axis drive system as the sheet medium is moved past the print or plot head which creates a drag thereon. The sheet medium is stiffened in the region thereof which is contacted by the print or plot head by bending the sheet medium in a direction normal to the direction of movement of the sheet medium. The bend may be provided by a curved guide located between the print or plot head and the X-axis drive system. Friction is reduced between the sheet medium and the curved guide by mounting the curved guide, e.g., one or more rollers, to rotate freely under the action of the sheet medium moving thereover, or by pneumatically supporting the sheet medium above the curved guide as the sheet medium is moved thereover.
摘要翻译：本文公开的本发明提供了一种方法和装置，用于当片状介质被驱动系统例如在打印机或绘图仪中移动时抵消片材介质上的局部阻力的影响，以防止片材介质与X射线的不对准，当纸张介质移动经过在其上产生拖动的打印或绘图头时，轴驱动系统。片材介质在其区域中被加强，该片材介质通过沿着垂直于片材介质的移动方向的方向弯曲片材介质而被印刷或绘图头接触。弯曲可以由位于打印头或绘图头与X轴驱动系统之间的弯曲导向器提供。通过安装弯曲引导件（例如一个或多个辊），在其上移动的片材介质的作用下自由旋转，或者通过气动地支撑弯曲引导件上方的片材介质，使片材介质和弯曲引导件之间的摩擦力减小片材介质在其上移动。

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