POSITIONING BOARD OF CHUCK
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United States of America Patent
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Issued Date -
Mar 5, 2015
app pub date -
Sep 3, 2013
filing date -
Sep 3, 2013
priority date (Note) -
Abandoned
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Abstract
A positioning board for a chuck includes a board member with a central bore, positioning bores and positioning slots. Each positioning slot has a main slot and two sub-slots connected to opposite ends of the main slot to form an H-shaped slot. Two flexible tongues are formed at opposite sides of the main slot. Therefore, while a post of a base engages the positioning slot, the flexible tongues are bent by the post to provide a precise engagement of chuck's bases.
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