Linear actuator having an adjustable piston rod
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United States of America Patent
Stats
-
Sep 9, 2003
Grant Date -
N/A
app pub date -
Jul 18, 2001
filing date -
Jul 18, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A linear actuator having an adjustable piston rod for transmitting linear motion to a rotary clamp wherein the adjustable length of the piston rod corresponds to predetermined rotational angles of a clamp arm. The adjustable piston rod provides a first portion connectable to said power clamp, and a second portion connectable to a piston of the linear actuator. The first portion is fabricated from a substantially cylindrical rod having a plurality of substantially cylindrical recesses formed thereon. The second portion provides a block connected to a tubular shaft for telescopically receiving the cylindrical rod. A cam is pivotally connected to the block and provides an aperture formed therein for receiving the cylindrical rod. A torsional spring biases the cam against the cylindrical rod within the cylindrical recesses formed in the rod to prohibit the rod from telescopically moving relative to the tubular shaft.
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