Security barrier endless drive loop lock
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 4, 2003
Grant Date -
Mar 28, 2002
app pub date -
Sep 28, 2001
filing date -
Sep 28, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In one aspect, the invention provides an endless loop lock including a drive wheel adapted to be driven or not driven. An endless loop may be provided, engaging the drive wheel and adapted to be driven by the drive wheel to move a device, such as a security bar, connected to the endless loop. A guide may be provided, biased against the endless loop at a position spaced apart from the drive wheel. A lock may be provided, for engaging the endless loop to inhibit movement of the endless loop, the guide being positioned to bias the endless loop out of engagement with the lock when the endless loop is driven by the drive wheel. The lock may be actuated by a force applied to the device connected to the endless loop when the drive wheel is not driven.
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