公开(公告)号：US06572801B2

公开(公告)日：2003-06-03

申请号：US09820588

申请日：2001-03-30

申请人： Alan M. Litman ,  Rafael Malespin ,  Keith A. Nau

发明人： Alan M. Litman ,  Rafael Malespin ,  Keith A. Nau

IPC分类号： B29C4142

CPC分类号： G03G15/751 ,  B29C44/582

摘要： An improved process for injection molding of components having zero draft sides comprising: making a mold having a zero draft cavity and an end-cap to seal the mold; injecting suitable resin material into the mold; foaming the resin material; separating the end-cap section from the cavity section of the mold; and removing the part from the mold. In particular, the zero draft process is intended for manufacture of an improved zero draft cylindrical noise attenuator for electrostatographic printers, said attenuator having a cylindrical sidewall thicker than 4 mm throughout at least most of its circumference; and a gap along the length of its long dimension.

摘要翻译： 一种用于注射成型具有零牵伸侧的部件的改进方法，包括：制造具有零抽气腔的模具和端盖以密封模具; 将合适的树脂材料注入模具中; 发泡树脂材料; 将端盖部分与模具的空腔部分分离; 并从模具中取出部件。 特别地，零抽取过程旨在制造用于静电打印机的改进的零抽取圆柱形噪声衰减器，所述衰减器在其至少大部分圆周上具有超过4mm的圆柱形侧壁; 以及沿其长度长度的间隙。

公开(公告)号：US6125255A

公开(公告)日：2000-09-26

申请号：US718758

申请日：1996-09-23

申请人： Alan M. Litman ,  Jorge A. Alvarez

发明人： Alan M. Litman ,  Jorge A. Alvarez

IPC分类号： G03G15/09 ,  H01F7/02

CPC分类号： H01F7/0268 ,  G03G15/0921 ,  Y10T29/49549 ,  Y10T29/49563

摘要： A method for manufacturing a magnetic roll for use in an electrophotographic printing machine of the type having an electrostatic latent image recorded on a photoconductive member is provided. The method includes the steps of placing a shaft in a mold cavity and molding a core in the mold cavity with the shaft in the cavity. The core defines a pocket on the periphery of the core. The method further includes the step of attaching a magnet to the pocket.

公开(公告)号：US06343419B1

公开(公告)日：2002-02-05

申请号：US09549627

申请日：2000-04-14

申请人： Alan M. Litman ,  Jorge A. Alvarez

发明人： Alan M. Litman ,  Jorge A. Alvarez

IPC分类号： B21D5300

CPC分类号： H01F7/0268 ,  G03G15/0921 ,  Y10T29/49549 ,  Y10T29/49563

摘要： A method for manufacturing a magnetic roll for use in an electrophotographic printing machine of the type having an electrostatic latent image recorded on a photoconductive member is provided. The method includes the steps of placing a shaft in a mold cavity and molding a core in the mold cavity with the shaft in the cavity. The core defines a pocket on the periphery of the core. The method further includes the step of attaching a magnet to the pocket.

摘要翻译： 提供一种用于制造具有记录在感光体上的静电潜像的电子照相印刷机的磁性辊的制造方法。 该方法包括以下步骤：将轴放置在模具腔中，并将模具中的芯体模制在腔体中的轴上。 芯部在芯部的外围设置一个口袋。 该方法还包括将磁体附接到口袋的步骤。

公开(公告)号：US5655196A

公开(公告)日：1997-08-05

申请号：US653892

申请日：1996-05-28

申请人： Alan M. Litman ,  Rafael Malespin

发明人： Alan M. Litman ,  Rafael Malespin

IPC分类号： F16C13/00 ,  G03G15/08

CPC分类号： G03G15/0818 ,  G03G2215/0863 ,  Y10T29/49551

摘要： A developer roll for use in an electrophotographic printing machine of the type having an electrostatic latent image recorded on a photoconductive member in which a voltage differential is applied between the roll and a region adjacent the roll is provided. The developer roll includes a wound roll of media and a layer of resin. The wound roll is formed from a sheet of the media. The layer of resin is applied to the periphery of the wound roll. The layer of resin and the roll of media are selected of materials to obtain a decay rate relating to the electrical response of the layer of resin to the applied voltage differential.

摘要翻译： 提供一种用于电子照相印刷机的显影辊，其具有记录在感光体上的静电潜像，其中在辊和与辊相邻的区域之间施加电压差。 显影辊包括卷绕的介质辊和一层树脂。 卷绕辊由介质片形成。 将树脂层施加到卷绕辊的周边。 选择树脂层和介质辊，以获得与树脂层对施加的电压差的电响应相关的衰减速率的材料。

公开(公告)号：US5506745A

公开(公告)日：1996-04-09

申请号：US286353

申请日：1994-08-05

申请人： Alan M. Litman

发明人： Alan M. Litman

IPC分类号： G03G15/02 ,  H01G5/00

CPC分类号： G03G15/0233

摘要： A device for charging a member. The device includes a roller contactable with the member to charge the member. The roller includes an elongated cylinder defining a central cavity in the elongated cylinder. The cylinder is flexible in a radial direction toward the central cavity. The device also includes an electrical biaser for electrically biasing the roller.

摘要翻译： 用于为会员充电的设备。 该装置包括可与构件接触以对该构件充电的辊。 辊包括限定长形圆柱体中的中心空腔的细长圆筒。 圆筒在向中心腔的径向方向上是柔性的。 该装置还包括用于电动偏置辊的电动冲击器。