Status indicator for a lock
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United States of America Patent
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-
N/A
Issued Date -
Dec 1, 2005
app pub date -
Jan 21, 2005
filing date -
May 27, 2004
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A status indicator for a lock includes two locking units that operate independently, to execute locking and unlocking operations. The lock has a body, which contains an indicator and a brake bolt. The indicator is latched by the brake bolt to remain at a selected indication position. When one locking unit executes the unlocking operation, the indicator is driven concurrently to switch to another indication position corresponding to a window, and is latched by the brake bolt without returning. The brake bolt can only release the latch condition on the indicator through the unlocking operation of another locking unit. Likewise, the indicator returns to the original indication position. Thus through the window formed on the body surface, the indication position of the indicator may be recognized.
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