LOCKING DEVICE
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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N/A
Issued Date -
Feb 11, 2010
app pub date -
Aug 5, 2009
filing date -
Aug 7, 2008
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A locking device includes an outer ring and a locking disk is located on a first side of the outer ring and has a shaft which extends through the outer ring. An annular ring, a needle roller bearing, a first washer, a second washer, and a transmission disk are mounted to the shaft, respectively. The first washer is co-rotated with the shaft and the second washer is co-rotated with the outer ring. The transmission disk is freely mounted to the shaft by a clamp and includes first recesses and second recesses which are shallower than the first recesses. Balls are located between the first and second washers and movably engaged with the first recesses or the second recesses so as to control the movement of the transmission disk to be engaged with a rotatable part such as a grinding wheel of a sand wheel machine.
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