Patent ID: 7891076
Filing Date: 2011-02-22
Classification: B05C,B23B,B65G,G03G,Y10T

Abstract:
1. An expandable chuck for holding photoreceptor substrates of various inside diameters, comprising: (a) a housing having a passageway; (b) a plunger configured to slide within the passageway; (c) a variable diameter resilient bulb having a substantially smooth and continuous outer surface between a first end and a second end, and configured to expand in diameter in a range from about 24 mm to about 60 mm; (d) a stop device extending from an outside surface of the housing, wherein the stop device is configured to abut an outside surface of a substrate to facilitate a stop for a measured length insertion of the bulb into the substrate, wherein the plunger is configured to cause the bulb to expand and to engage the interior of the substrate when the plunger is moved in a first direction and to contract and to disengage from the interior of the substrate when the plunger is moved in an second direction, and the bulb is configured to expand between a first diameter and a second diameter, each of which is in said range, the first diameter corresponding to an inside diameter of a first photoreceptor substrate and the second diameter corresponding to an inside diameter of a second, larger-diameter photoreceptor substrate, wherein the outer surface of the bulb is configured to form a hermetic seal against an inner surface of each of the first and second photoreceptor substrates to prevent fluid migration into the interior thereof.