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1. 发明授权

US06998803B2 Enhanced performance for DC motor drive switching 失效
标题翻译：增强直流电机驱动开关的性能
公开(公告)号：US06998803B2
公开(公告)日：2006-02-14
申请号：US10825680
申请日：2004-04-15
申请人： John E. Durkee , David P. Stebnicki , David J. Stephens
发明人： John E. Durkee , David P. Stebnicki , David J. Stephens
IPC分类号： H02P1/00
CPC分类号： H02P1/18
摘要： An improved drive circuit is provided for a DC motor. The drive circuit includes: a DC power source; a relay having a normally open contact and a normally closed contact; a DC motor electrically connected through the normally open contact of the relay to the power source; and a discharge circuit connected in parallel to the DC motor. More specifically, the discharge circuit is coupled to the normally closed contact of the relay and operable to inhibit current flow from the DC motor until the relay has settled in a closed position.
摘要翻译：为直流电动机提供改进的驱动电路。驱动电路包括：直流电源; 具有常开触点和常闭触点的继电器; 通过所述继电器的常开触点与所述电源电连接的直流电动机; 以及与DC电动机并联连接的放电电路。更具体地，放电电路耦合到继电器的常闭触点，并且可操作以禁止来自DC电动机的电流流动，直到继电器已经稳定在闭合位置。

2. 发明授权

US4903956A Sheet stacking apparatus having positive control system for trailing sheet ends 失效
标题翻译：具有用于后片端的正控制系统的纸张堆垛装置
公开(公告)号：US4903956A
公开(公告)日：1990-02-27
申请号：US264724
申请日：1988-10-31
申请人： David J. Stephens , Rodney G. Mader , Homer D. Durst , Sven Sonnenberg
发明人： David J. Stephens , Rodney G. Mader , Homer D. Durst , Sven Sonnenberg
IPC分类号： B65H29/40
CPC分类号： B65H29/40
摘要： A sheet stacking apparatus for receiving sheets from a printing or copying machine includes guide structure for directing output sheets onto an elevator platform and a selectively rotatable shaft having paddle arms disposed at a 108.degree. interval. The shaft rotation is controlled so that the arms guide a sheet during stacker input and then rotates 360.degree. to positively clear the sheet trail edge from the stacker input path.
摘要翻译：用于从印刷或复印机接收片材的片材堆垛装置包括用于将输出片材引导到电梯平台上的引导结构和具有以108度间隔设置的桨叶臂的选择性转动的轴。轴旋转被控制，使得臂在堆叠器输入期间引导纸张，然后旋转360度以从纸堆输入路径中确定地清除纸张边缘。

3. 发明授权

US08783850B2 Drying printed media moving along media path 有权
标题翻译：干燥沿媒体路径移动的打印介质
公开(公告)号：US08783850B2
公开(公告)日：2014-07-22
申请号：US13460922
申请日：2012-05-01
申请人： David J. Stephens , Christopher M. Muir , W. Charles Kasiske, Jr.
发明人： David J. Stephens , Christopher M. Muir , W. Charles Kasiske, Jr.
IPC分类号： B41J2/01 , B41J11/00 , B41M7/00
CPC分类号： B41J11/002 , B41J3/543 , B41J3/60 , B41J11/0015 , B41J15/04 , B41M7/0072
摘要： Apparatus for drying media in a printer includes first and second successive printing stations with a first rotatable member that contacts the wet side of the media between them. Each prints on one side of the media. A media-path extender between the first printing station and the first rotatable member includes a dry-side rotatable member and a wet-side rotatable member around which the media path passes in that order. An extension media path is defined from the first printing station past the dry-side member, the wet-side member, and the first rotatable member, in that order, to the second printing station. The printer selectively transports the media either along a bypass media path or along the extension media path. The wet-side member is farther past the first printing station than is the first rotatable member.
摘要翻译：用于在打印机中干燥介质的设备包括具有第一可旋转构件的第一和第二连续的打印站，所述第一可旋转构件与它们之间的介质的湿侧接触。每个打印在媒体的一面。第一印刷台和第一可旋转构件之间的介质路径延伸器包括干燥侧可旋转构件和湿侧可旋转构件，介质路径以该顺序通过。延伸介质路径从第一印刷站依次经过干侧部件，湿侧部件和第一可旋转部件被定义到第二印刷台。打印机沿着旁路介质路径或沿着扩展介质路径有选择地传送介质。湿侧构件比第一可旋转构件更远离第一印刷站。

4. 发明授权

US5754206A Low stress droplet generator mount assembly 失效
标题翻译：低应力液滴发生器安装组件
公开(公告)号：US5754206A
公开(公告)日：1998-05-19
申请号：US606427
申请日：1996-02-23
申请人： Bruce A. Bowling , David J. Stephens
发明人： Bruce A. Bowling , David J. Stephens
IPC分类号： B41J2/01 , B41J2/025 , B41J2/075 , B41J2/02
CPC分类号： B41J2/025 , B41J2002/14362
摘要： A mounting apparatus holds in position a droplet generator assembly to be mounted in a continuous ink jet printing system. The droplet generator assembly comprises a pair of conical slots and a pair of conical apertures, located on opposing sides of the droplet generator. A resonator clamping plate includes a plurality of mating protrusions. A resonator support includes a plurality of spherical protrusions. A holding force, such as a screw, securely holds the assembled structure. The clamp and support interact with the conical slots and apertures to locate and exactly constrain the droplet generator. With the mounting structure of the present invention, the six degrees of freedom of adjustment are controlled.
摘要翻译：安装装置将液滴发生器组件保持在待安装在连续喷墨打印系统中的位置。液滴发生器组件包括位于液滴发生器的相对侧上的一对锥形槽和一对锥形孔。谐振器夹板包括多个配合突起。谐振器支撑件包括多个球形突起。诸如螺钉的保持力牢固地保持组装结构。夹具和支撑件与锥形槽和孔相互作用以定位并精确约束液滴发生器。利用本发明的安装结构，可以控制六个自由度的调整。

5. 发明授权

US5394179A Stimulator for continous ink print head 失效
标题翻译：刺绣机用于连续油墨打印头
公开(公告)号：US5394179A
公开(公告)日：1995-02-28
申请号：US855191
申请日：1992-03-20
申请人： Randy D. Vandagriff , David J. Stephens , Frank L. Reynolds
发明人： Randy D. Vandagriff , David J. Stephens , Frank L. Reynolds
IPC分类号： B41J2/16 , G01D15/18
CPC分类号： B41J2/1632 , B41J2/161 , B41J2/1623
摘要： A stimulator for a continuous ink jet print head is fabricated by providing a surface roughness of between 100 and 200 microinches on the surface of the stimulator body and attaching a piezoelectric transducer strip to the body using an acrylic cement having a viscosity of between 2 and 100 centipois. The resulting stimulator exhibits improved lifetime with acceptable acoustic properties.
摘要翻译：用于连续喷墨打印头的刺激器通过在刺激器主体的表面上提供介于100和200微英寸之间的表面粗糙度并使用粘度在2和100之间的丙烯酸粘结剂将压电传感器带附接到身体来制造厘泊所产生的刺激器表现出改善的使用寿命并具有可接受的声学特性。

6. 发明授权

US4607699A Method for treating a tar sand reservoir to enhance petroleum production by cyclic steam stimulation 失效
标题翻译：通过循环蒸汽刺激处理焦油砂储层以提高石油产量的方法
公开(公告)号：US4607699A
公开(公告)日：1986-08-26
申请号：US740613
申请日：1985-06-03
申请人： David J. Stephens
发明人： David J. Stephens
IPC分类号： E21B43/16 , E21B43/24 , E21B43/26
CPC分类号： E21B43/164 , E21B43/2405 , Y02P90/70
摘要： A method for conditioning the virgin drainage area of a tar sand formation that is penetrated by a well for enhanced petroleum production by cyclic steam stimulation is described. The method comprises fracturing the drainage area by injection of liquid carbon dioxide. While carbon dioxide is still in place within the formation, steam is injected into the formation. After a suitable soaking period, the well is opened to production. This method achieves better petroleum recovery than conventional huff-puff steam stimulation techniques.
摘要翻译：描述了一种通过循环蒸汽刺激来调节由井渗透以增强石油生产的焦油砂层的原始排水区域的方法。该方法包括通过注入液态二氧化碳来破碎排水区域。当二氧化碳仍然在地层内时，蒸汽被注入地层。在适当的浸泡期后，井开始生产。该方法比常规吹泡蒸汽刺激技术获得更好的石油回收率。

7. 发明申请

US20110128338A1 MODULAR MEDIA TRANSPORT SYSTEM 审中-公开
标题翻译：模块化媒体运输系统
公开(公告)号：US20110128338A1
公开(公告)日：2011-06-02
申请号：US12627032
申请日：2009-11-30
申请人： Bradley C. DeCook , Randy E. Armbruster , Brian J. Joseph , Christopher M. Muir , David J. Stephens
发明人： Bradley C. DeCook , Randy E. Armbruster , Brian J. Joseph , Christopher M. Muir , David J. Stephens
IPC分类号： B41J2/01
CPC分类号： B41J3/543 , B41J15/046 , B41J15/16 , B41J15/165
摘要： A digital printing system for printing on a continuous web of print media includes a first module and a second module that guide a continuous web of print media under tension through the printing system. At least one of the first module and the second module include a digital printhead for placing marks on the print media as it travels through the module. The first module includes a first support structure. A first mechanism is affixed to the first support structure and includes structure that positions the print media in a cross track direction. A second mechanism is affixed to the first support structure and includes structure that sets a tension of the print media. The second module includes a second support structure and is positioned downstream from the first module. A mechanism that kinematically connects the continuous web of print media traveling through the first module to the continuous web of print media traveling through the second module is affixed to the support structure of the at least one of the first module and the second module. A third mechanism includes structure that sets an angular trajectory of the print media and is affixed to the support structure of the at least one of the first module and the second module.
摘要翻译：用于在连续的打印介质幅面上打印的数字打印系统包括第一模块和第二模块，其通过打印系统在张力下引导连续的打印介质幅材。第一模块和第二模块中的至少一个包括数字打印头，用于在打印介质通过模块时将标记放置在打印介质上。第一模块包括第一支撑结构。第一机构固定到第一支撑结构，并且包括将打印介质定位在十字轨道方向上的结构。第二机构被固定到第一支撑结构并且包括设置打印介质的张力的结构。第二模块包括第二支撑结构并且位于第一模块的下游。运动学连接通过第一模块行进的连续的打印介质幅材到通过第二模块行进的连续打印介质幅材的机构被固定到第一模块和第二模块中的至少一个的支撑结构上。第三机构包括设置打印介质的角度轨迹并且被固定到第一模块和第二模块中的至少一个的支撑结构的结构。

8. 发明申请

US20100053270A1 PRINTHEAD HAVING CONVERGING DIVERGING NOZZLE SHAPE 审中-公开
标题翻译：具有混合流动喷嘴形状的打印头
公开(公告)号：US20100053270A1
公开(公告)日：2010-03-04
申请号：US12200182
申请日：2008-08-28
申请人： Jinquan Xu , Zhanjun Gao , Kevin P. Egan , David J. Stephens
发明人： Jinquan Xu , Zhanjun Gao , Kevin P. Egan , David J. Stephens
IPC分类号： B41J2/14
CPC分类号： B41J2/1433 , B41J2002/14475
摘要： A printhead includes a nozzle plate and a nozzle bore located in the nozzle plate. In one embodiment, the nozzle bore includes a first section, a second section, and a third section when viewed in a plane perpendicular to the nozzle plate. The first section and the second section are spaced apart from each other by the third section. The first section includes a converging area portion and the second section includes a diverging area portion. In another embodiment, the first section and the second section of the nozzle bore are adjacent to each other. The first section includes a converging area portion and the second section includes a diverging area portion. The diverging area portion and the converging area portion are asymmetrical relative to each other when viewed along the plane perpendicular to the nozzle plate.
摘要翻译：打印头包括喷嘴板和位于喷嘴板中的喷嘴孔。在一个实施例中，当在垂直于喷嘴板的平面中观察时，喷嘴孔包括第一部分，第二部分和第三部分。第一部分和第二部分通过第三部分彼此间隔开。第一部分包括会聚区域部分，并且第二部分包括发散区域部分。在另一个实施例中，喷嘴孔的第一部分和第二部分彼此相邻。第一部分包括会聚区域部分，并且第二部分包括发散区域部分。当沿着垂直于喷嘴板的平面观察时，发散区域部分和会聚区域部分相对于彼此是不对称的。

9. 发明申请

US20130293646A1 DRYING PRINTED MEDIA MOVING ALONG MEDIA PATH 有权
标题翻译：干燥印刷媒体移动媒体路线
公开(公告)号：US20130293646A1
公开(公告)日：2013-11-07
申请号：US13460922
申请日：2012-05-01
申请人： David J. Stephens , Christopher M. Muir , W. Charles Kasiske, JR.
发明人： David J. Stephens , Christopher M. Muir , W. Charles Kasiske, JR.
IPC分类号： B41J2/01
CPC分类号： B41J11/002 , B41J3/543 , B41J3/60 , B41J11/0015 , B41J15/04 , B41M7/0072
摘要： Apparatus for drying media in a printer includes first and second successive printing stations with a first rotatable member that contacts the wet side of the media between them. Each prints on one side of the media. A media-path extender between the first printing station and the first rotatable member includes a dry-side rotatable member and a wet-side rotatable member around which the media path passes in that order. An extension media path is defined from the first printing station past the dry-side member, the wet-side member, and the first rotatable member, in that order, to the second printing station. The printer selectively transports the media either along a bypass media path or along the extension media path. The wet-side member is farther past the first printing station than is the first rotatable member.
摘要翻译：用于在打印机中干燥介质的设备包括具有第一可旋转构件的第一和第二连续的打印站，所述第一可旋转构件与它们之间的介质的湿侧接触。每个打印在媒体的一面。第一印刷台和第一可旋转构件之间的介质路径延伸器包括干燥侧可旋转构件和湿侧可旋转构件，介质路径以该顺序通过。延伸介质路径从第一印刷站依次经过干侧部件，湿侧部件和第一可旋转部件被定义到第二印刷台。打印机沿着旁路介质路径或沿着扩展介质路径有选择地传送介质。湿侧构件比第一可旋转构件更远离第一印刷站。

10. 发明授权

US5477254A Apparatus for mounting and aligning components of an ink jet printhead 失效
标题翻译：用于安装和对准喷墨打印头的部件的装置
公开(公告)号：US5477254A
公开(公告)日：1995-12-19
申请号：US860483
申请日：1992-03-30
申请人： David J. Stephens
发明人： David J. Stephens
IPC分类号： B41J2/03 , G01D15/18
CPC分类号： B41J2/03
摘要： An apparatus and method allows for mounting and aligning of the charge plate/catcher assembly and the droplet generator within the structure that holds these two parts. Three degrees of freedom of adjustment are incorporated into the frame and are self-locking. Two of the degrees of freedom are the positioning distance of a jet array to charge leads and the parallelism of the jet array to the charge leads. The third degree of freedom is the ability to adjust the jet array so as to align and center the jets in front of the charge leads.
摘要翻译：装置和方法允许在保持这两个部分的结构内安装和对准充电板/捕集器组件和液滴发生器。三个调节自由度被并入到框架中并且是自锁的。自由度的两个是喷射阵列对充电引线的定位距离和喷射阵列与电荷引线的平行度。第三自由度是调整喷射阵列的能力，以便将射流对准和对准在充电引线前面。

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