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1. 发明授权

US5916494A Rotational indexing base curve deposition array 失效
标题翻译：旋转分度基线曲线沉积阵列
公开(公告)号：US5916494A
公开(公告)日：1999-06-29
申请号：US581156
申请日：1995-12-29
申请人： Michael F. Widman , Henri A. Dagobert , Edmund C. Rastrelli
发明人： Michael F. Widman , Henri A. Dagobert , Edmund C. Rastrelli
IPC分类号： G02C7/04 , B29C31/00 , B29C33/30 , B29C33/38 , B29C39/02 , B29C39/24 , B29C43/00 , B29D11/00 , B29K33/04 , B29L11/00
CPC分类号： B29D11/00221 , B29C31/006 , B29C33/30 , B29D11/00019 , B29C43/00 , Y10S425/808
摘要： A rotational indexing base curve deposition array for assembling contact lens base curves and front curves with a prescribed and programmable angular orientation to produce a contact lens having a selected axis placement therein, such as a toric axis for a toric contact lens. An array of front curve molds are arranged in a support pallet with a dosed amount of monomer mixture deposited into each of the front curve molds. An array of deposition tubes, positioned in a support plate and coupled to a vacuum source, is used to pick up and support an array of base curve molds. Each of the deposition tubes is then angularly rotated in to the support plate to a selected angularly indexed position therein. A common angular rotational drive is coupled to each of the deposition tubes in the array to angular index each of the deposition tubes to a precise angular position in the support plate. The common angular rotational drive is driven by a stepper motor which can be controlled in a programmable manner to change the selected angularly indexed position. The stepper motor drives moveable racks, which drive pinion gears around the deposition gears. The angularly indexed array of base curve molds is then assembled over the array of front curve molds to produce toric lenses having first and second optical surfaces which are precisely angularly indexed relative to each other.
摘要翻译：一种旋转分度基线曲线沉积阵列，用于组装具有规定和可编程角度取向的隐形眼镜基部曲线和前曲面，以产生其中具有选定轴线的接触透镜，例如用于复曲面隐形眼镜的复曲面轴。将前曲面模具阵列布置在支撑托盘中，并将一定量的单体混合物沉积到每个前曲面模具中。位于支撑板中并联接到真空源的沉积管阵列用于拾取和支撑基弧曲线模具阵列。然后将每个沉积管角度地旋转到支撑板中至其中的选定的角度分度位置。共同的角旋转驱动器耦合到阵列中的每个沉积管，以将每个沉积管的角度指向支撑板中的精确角位置。共同的角度旋转驱动由步进电动机驱动，该步进电动机可以以可编程的方式被控制以改变所选择的有角度的分度位置。步进电机驱动可移动的机架，驱动小齿轮围绕沉积齿轮。然后将基础曲线模具的角度分度的阵列组装在前曲面模具的阵列上，以产生具有相对于彼此精确成角度索引的第一和第二光学表面的复曲面透镜。

2. 发明授权

US5820895A Conductive probe for heating contact lens mold assemblies during demolding 失效
标题翻译：用于在脱模过程中加热隐形眼镜模具组件的导电探针
公开(公告)号：US5820895A
公开(公告)日：1998-10-13
申请号：US657565
申请日：1996-06-04
申请人： Michael F. Widman , Henri A. Dagobert
发明人： Michael F. Widman , Henri A. Dagobert
IPC分类号： B29C33/02 , B29C35/02 , B29C37/00 , B29C39/26 , B29C39/36 , B29D11/00 , B29K101/12 , B29L11/00 , B29C39/38
CPC分类号： B29D11/00211 , B29C37/0003 , B29D11/00221 , B29C2035/0211 , Y10S425/11 , Y10S425/808
摘要： Demolding apparatus for reliably and repeatedly mechanically separating contact lens mold assemblies without damaging the contact lens formed therebetween. The mold assembly includes a frontcurve mold having a central mold section with a surrounding flange, and a corresponding backcurve mold also having a central mold section with a surrounding flange, with a contact lens being molded therebetween. The demolding apparatus includes a conductive heating probe which contacts the backcurve mold of the lens mold assembly to conductively heat the backcurve mold. Heat is conducted by the backcurve mold to cause a temperature gradient between the backcurve mold and the lens being demolded. The temperature gradient causes a differential expansion and shifting of the surface of the backcurve mold relative to the surface of the lens to lessen the adhesion therebetween to assist in separation of the molds, while leaving the lens in the frontcurve mold. The conductive heating probe includes a convex heating surface which contacts and is the same general shape as a concave surface on the backcurve mold, and can also include a compliant heat conductor to conform to the concave surface on the backcurve mold. In one embodiment, the apparatus includes a conductive heating probe assembly having an n.times.m array of conductive heating probes which contact each backcurve mold of an n.times.m array of molds assemblies positioned in a support pallet.
摘要翻译：用于可靠且重复地机械分离隐形眼镜模具组件的脱模装置，而不会损坏其间形成的隐形眼镜。模具组件包括具有具有周围凸缘的中心模具部分的前曲面模具和相应的后曲面模具，该模具还具有中心模具部分和围绕的凸缘，其间形成隐形眼镜。脱模装置包括与透镜模具组件的后弯曲模具接触的导电加热探针，以导电地加热后曲模。通过后弯模具进行加热，导致后曲模和透镜之间的温度梯度脱模。温度梯度导致后曲模的表面相对于透镜表面的差异膨胀和移动，以减小它们之间的粘合力，以有助于将模具分离，同时将透镜留在前曲模中。导电加热探针包括与后曲面模具上的凹面接触并具有相同大致形状的凸形加热表面，并且还可以包括符合后曲面模具上的凹面的柔性热导体。在一个实施例中，该装置包括具有导电加热探针的n×m阵列的导电加热探针组件，其接触定位在支撑托盘中的nxm阵列的模具组件的每个后曲模。

3. 发明授权

US5693268A Wedge demolding of cast lens mold assemblies 失效
标题翻译：的铸造镜片模具组合件脱模楔
公开(公告)号：US5693268A
公开(公告)日：1997-12-02
申请号：US626730
申请日：1996-04-01
申请人： Michael F. Widman , Daniel Tsu-Fang Wang , Henri A. Dagobert
发明人： Michael F. Widman , Daniel Tsu-Fang Wang , Henri A. Dagobert
IPC分类号： G02C7/04 , B29C31/00 , B29C33/00 , B29C33/30 , B29C33/46 , B29C37/00 , B29D11/00 , B29L11/00
CPC分类号： B29D11/00221 , B29C31/006 , B29C33/0011 , B29C33/46 , B29C37/0003 , Y10S425/808
摘要： Demolding apparatus for reliably and repeatedly mechanically separating contact lens mold assemblies without damaging the contact lens formed therebetween. The mold assembly includes a frontcurve mold having a central mold section with a surrounding flange, and a corresponding backcurve mold also having a central mold section with a surrounding flange, with a contact lens being molded therebetween. A support pallet is provided for supporting the mold assembly. A wedge separating fixture provides at least one separating wedge positioned between the spaced flanges of the mold assembly, and the wedge separating fixture and support pallet are translated relative to each other to progressively separate the frontcurve mold from the backcurve mold. In one embodiment the wedge separating fixture is stationarily mounted suspended above the support pallet, and a drive conveys the support pallet relative to the stationarily mounted wedge separating fixture to a position whereat the separating wedge is positioned between the spaced flanges of the mold assembly and separates or demolds the frontcurve and backcurve molds.
摘要翻译：用于可靠且重复地机械分离隐形眼镜模具组件的脱模装置，而不会损坏其间形成的隐形眼镜。模具组件包括具有具有周围凸缘的中心模具部分的前曲面模具和相应的后曲面模具，该模具还具有中心模具部分和围绕的凸缘，其间形成隐形眼镜。的支撑托盘被设置用于支撑所述模具组件。楔形分离夹具提供定位在模具组件的隔开的凸缘之间的至少一个分离楔，并且楔形分离夹具和支撑托盘相对于彼此平移，以逐渐地将前曲面模具与后曲面模具分离。在一个实施例中，楔形分离固定件固定地悬挂在支撑托盘上方，并且驱动器将支撑托盘相对于固定安装的楔形分离夹具传送到分离楔定位在模具组件的间隔开的凸缘之间的位置，或demolds的frontcurve和后曲线模具。

4. 发明授权

US5540543A Apparatus for removing and transporting articles from molds 失效
标题翻译：用于从模具中移走和运输物品的装置
公开(公告)号：US5540543A
公开(公告)日：1996-07-30
申请号：US463358
申请日：1995-06-05
申请人： Victor Lust , Stephen R. Beaton , Henri A. Dagobert , Phillip K. Parnell, Sr. , Craig W. Walker , Daniel T. Wang
发明人： Victor Lust , Stephen R. Beaton , Henri A. Dagobert , Phillip K. Parnell, Sr. , Craig W. Walker , Daniel T. Wang
IPC分类号： G02C7/04 , B29C31/00 , B29C33/44 , B29C37/00 , B29C39/36 , B29D11/00 , B29L11/00 , B65G47/74
CPC分类号： B29D11/00192 , B29C31/006 , B29C37/0007 , B29D11/00067 , B29L2011/0041 , B29L2031/757
摘要： Apparatus for removing and transporting ophthalmic lens mold sections from a mold, and generally comprising first, second, and third assemblies. The first assembly removes the lens mold sections from the mold and transports the lens mold sections to a first location, the second assembly receives the lens mold sections from the first assembly and transports the lens mold sections to a second location, and the third assembly receives the lens mold sections from the second assembly and transports the lens mold sections to a third location. Preferably, the first assembly includes a hand to receive the lens mold sections from the mold and to releasably hold the lens mold sections, and a support subassembly connected to the hand to support the hand and to move the hand between the mold and the first location. The second assembly preferably includes a support frame, a platform to receive the lens mold sections from the first assembly and supported by the support frame for movement between the first and second locations, and moving apparatus for moving the platform along the support frame and between these first and second locations. The preferred design of the third assembly includes a transport subassembly and a support column. The transport subassembly receives the lens mold sections from the second assembly, releasably holds those lens mold sections, and carries the lens mold sections to the third location; and the support column supports the transport subassembly for movement between the second and third locations.
摘要翻译：用于从模具中移除和输送眼镜片模具部分的装置，并且通常包括第一，第二和第三组件。第一组件从模具中移除透镜模具部分并将透镜模具部分运送到第一位置，第二组件从第一组件接收透镜模具部分并将透镜模具部分传送到第二位置，并且第三组件接收来自第二组件的透镜模具部分并将透镜模具部分传送到第三位置。优选地，第一组件包括用于从模具接收透镜模具部分并且可释放地保持透镜模具部分的手以及连接到手的支撑子组件以支撑手并且使手在模具和第一位置之间移动。第二组件优选地包括支撑框架，用于从第一组件接收透镜模具部分并由支撑框架支撑以在第一和第二位置之间移动的平台以及用于沿着支撑框架移动平台的移动装置第一和第二个位置。第三组件的优选设计包括运输子组件和支撑柱。运输子组件从第二组件接收透镜模具部分，可释放地保持那些透镜模具部分，并将透镜模具部分运送到第三位置; 并且支撑柱支撑用于在第二和第三位置之间移动的运输子组件。

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