Soft-start/positive drive coupling
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United States of America Patent
Stats
-
Jan 7, 1992
Grant Date -
N/A
app pub date -
Nov 23, 1987
filing date -
Nov 23, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A coupling is in two parts. One part is connected to the element to be driven and that part is a flat-face, circular member with three spaced grooves on its face and three spaced grooves on its circular edge. The second part is connected to the drive element and is a three jaw chuck with wedges on the jaws to engage the grooves on the circular edge of the first part. The three jaws have spring-biased projections that engage the grooves on the face of the first part to initially have the second part drive the first part.
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