Lockout device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 6, 2000
Issued Date -
N/A
app pub date -
Apr 24, 1998
filing date -
Oct 3, 1994
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A locking device for use in connection with an energy controlling apparatus, such as a valve, or regulator, to prevent unauthorized persons from changing the position of a rotatable shaft of the apparatus that controls the amount of energy that flows through the apparatus. The locking device includes a handle used to manually set the position of the shaft. It also includes a gear that is rotatably mounted in the handle and is fixed to the shaft of the apparatus. A first locking mechanism carried by the handle mechanically and selectively couples the handle and the gear through a key access to the lock. A spring-biased ratchet mechanism may be provided to permit rotation of the shaft in one direction only. A personal locking mechanism with only a single key is selectively lockable to the handle so that in the locked position it prevents access to the first locking mechanism.
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