Lockout device
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United States of America Patent
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-
Sep 14, 1999
Issued Date -
N/A
app pub date -
Apr 25, 1997
filing date -
Oct 3, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A lockout device to prevent tampering with the manually set position of a valve or regulator or other device having a rotatable shaft for adjusting, for example, the flow of fluid through the device, from a position initially set to some other position. The lockout device is usable with a wide range of standard valves and regulators which have a drive stem and includes a drive gear that engages the drive stem and a key locking device mounted in a generally cylindrical handle of the lockout device and being selectively movable from a first position in which the handle free-wheels relative to the drive stem of the valve so as to prevent unauthorized moving of the rotational position of the valve stem by any person not having a key to an engaging position in which the handle is locked to the drive stem to permit ordinary rotational movement and setting of the valve stem position.
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