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US 6,142,487 AGranted
Centering and holding apparatus and method using inclined surface
AssigneeXerox Corporation
InventorEugene A. Swain
Life of this patent
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Abstract
An apparatus for centering and holding a substrate including: (a) a substrate holding assembly defining a centerline; and (b) a substrate centering assembly including an alignment member, wherein the alignment member is disposed concentric with the centerline and has an inclined surface that is inclined in a direction such that upon sliding contact of the substrate with the inclined surface, the substrate moves toward the centerline.
Claims11
An apparatus for centering and holding a substrate comprising:
- (a) a substrate holding assembly defining a centerline;
- and
- (b) a substrate centering assembly including an alignment member, wherein the alignment member is disposed concentric with the centerline and has an inclined surface that is inclined in a direction such that upon sliding contact of the substrate with the inclined surface, the substrate moves toward the centerline, and wherein the alignment member is movable along the centerline.
A handling method for a substrate wherein the substrate is off-center from a centered position, comprising:
- (a) contacting the substrate with an inclined surface that is inclined towards the centered position and sliding the substrate along the inclined surface until the substrate is in the centered position;
- (b) gripping the substrate to hold the substrate;
- (c) processing the substrate while gripping the substrate;
- and
- (d) retracting the inclined surface away from contact with the substrate prior to the processing of the substrate.
2 more elements
Dependencies are inferred from the claim text.