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    • 22. 发明授权
    • Flexible belt system
    • 柔性带系统
    • US5709765A
    • 1998-01-20
    • US334010
    • 1994-10-31
    • William G. HerbertRobert C.U. YuGeoffrey M.T. FoleyWilliam W. LimburgRichard L. PostDonald C. VonHoeneSatchidanand Mishra
    • William G. HerbertRobert C.U. YuGeoffrey M.T. FoleyWilliam W. LimburgRichard L. PostDonald C. VonHoeneSatchidanand Mishra
    • G03G15/20B29C63/20B65H23/34G03G5/10G03G15/00G03G21/00G03G15/02
    • G03G15/751B29C63/20G03G5/10Y10T29/53657
    • A flexible belt is disclosed which includes a major segment and at least one narrow minor segment, the narrow minor segment extending from one end of the belt to the opposite end and being more extendible than the major segment when subjected to an externally applied tension. This belt may be a component of a composite cylindrical device including a rigid drum substrate supporting the flexible belt in a stretched condition. The composite cylindrical device may be fabricated by providing a preformed rigid cylindrical support drum having a predetermined outer circumference, a first end and a second end, providing a flexible belt having an outer surface and an inner surface circumference of at least about 0.05 percent smaller than the outer circumference of the support drum, the belt including a major segment and at least one narrow minor segment, the narrow minor segment extending from one end of the belt to the opposite end and being more extendible than the major segment under the same applied tension, circumferentially expanding the belt with a flowing fluid under pressure until the inner surface circumference of the belt adjacent the first end is stretched to a new dimension of at least about 0.1 percent greater than the outer circumference of the support drum while maintaining the belt below the elastic limit of the belt, sliding the belt onto the support drum from the first end toward the second end of the support drum until substantially all of the belt encircles the outer surface of the support drum, and terminating the flow of the flowing liquid to allow the belt to contract onto the outer surface of the support drum.
    • 公开了一种柔性带,其包括主段和至少一个窄的小段,窄的小段从带的一端延伸到相对端,并且在经受外部施加的张力时比主段更可延伸。 该带可以是复合圆柱形装置的组件,其包括在拉伸状态下支撑柔性带的刚性鼓衬底。 复合圆柱形装置可以通过提供具有预定外圆周的预制刚性圆柱形支撑滚筒来制造,第一端和第二端提供柔性带,该柔性带的外表面和内表面周长小于 支撑滚筒的外圆周,皮带包括主要部分和至少一个狭窄的小的部分,窄的小分段从皮带的一端延伸到相对的端部并且在相同的张紧张力下比主要部分更可延伸 在压力下使流体流体周向地膨胀带,直到邻近第一端的带的内表面周长被拉伸至比支撑滚筒的外圆周大至少约0.1%的新尺寸,同时将带保持在下面 带的弹性极限,将带从第一端向第二端滑动到支承鼓上 直到基本上所有的皮带围绕支撑滚筒的外表面,并终止流动的液体的流动,以允许皮带收缩到支撑滚筒的外表面上。
    • 30. 发明授权
    • Benzotriazole stabilized photosensitive device
    • 苯并三唑稳定的光敏装置
    • US4330608A
    • 1982-05-18
    • US215476
    • 1980-12-11
    • William W. LimburgDamodar M. Pai
    • William W. LimburgDamodar M. Pai
    • G03G5/06G03G5/14
    • G03G5/0633G03G5/0614
    • An imaging member comprising a hole generation layer and a contiguous hole transport layer, said generation layer comprising a photoconductive material exhibiting the capability of photogeneration of holes and injection of said holes, said hole transport layer comprising a di or triarylmethane compound of the general formula: ##STR1## wherein R.sub.1 and R.sub.2 are independently selected from the group consisting of a C.sub.1 -C.sub.8 alkyl, aryl, alkaryl and aralkyl, where said aryl is a phenyl group or a condensed ring group, where the alkyl group of said alkaryl and aralkyl is a C.sub.1 -C.sub.4 group; R.sub.3 is independently selected from the group consisting of hydrogen and CH.sub.3 ; and R.sub.4 is the same as R.sub.1 and R.sub.2 or a disubstituted aminophenyl group wherein the substituents are independently selected from the group consisting of a C.sub.1 -C.sub.8 alkyl, aryl, alkaryl and aralkyl as defined supra, said di or triarylmethane is dissolved in a polycarbonate resinous material, said charge transport layer being substantially nonabsorbing in the spectral region at which the photoconductive material generates and injects said holes, but being capable of supporting the injection of said holes and transporting said holes through said transport layer and dissolved in said transport layer a stabilizing proportion of a substituted or unsubstituted 2-(2'-hydroxyphenyl)-benzotriazole.
    • 一种成像构件,包括空穴产生层和邻接的空穴传输层,所述发生层包括具有空穴光生能力和所述孔注入的光电导材料,所述空穴传输层包含通式为的二或三芳基甲烷化合物: 其中R 1和R 2独立地选自C 1 -C 8烷基,芳基,烷芳基和芳烷基,其中所述芳基是苯基或稠环基,其中所述烷芳基和芳烷基的烷基是 一个C 1 -C 4基团; R 3独立地选自氢和CH 3; 并且R 4与R 1和R 2相同或二取代的氨基苯基,其中取代基独立地选自如上所定义的C 1 -C 8烷基,芳基,烷芳基和芳烷基,所述二芳基甲烷或三芳基甲烷溶于聚碳酸酯树脂 材料,所述电荷传输层在光电导材料产生并注入所述孔的光谱区域中基本上不吸收,但是能够支持所述孔的注入并将所述孔传送通过所述传输层并溶解在所述传输层中,稳定化 取代或未取代的2-(2'-羟基苯基) - 苯并三唑的比例。