Power work arm
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 8, 1993
Grant Date -
N/A
app pub date -
Jul 31, 1992
filing date -
Jul 31, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A device with a pivoting work arm for carrying and positioning a tool which is moved by a modified Watts linkage powered by a linear actuator having a true straight line motion. The modified Watts linkage has relatively short links resulting in the center of the middle link following an arcuate path. The center of the middle link is drivingly connected to the linear actuator by a pivoting link or a cam. To provide shock absorption for the work arm as it reaches its fully extended position, the modified Watts linkage is coupled to a follower arm yieldably biased by a spring.
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