Dustproof auxiliary lock
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United States of America Patent
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-
N/A
Issued Date -
Aug 17, 2006
app pub date -
Feb 17, 2005
filing date -
Feb 17, 2005
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An auxiliary lock includes a dustproof support ring mounted to an outer side of a door, a cylinder mounted to the outer side of the door, a cylinder housing mounted to the outer side of the door and securely mounted around the cylinder, a trim enclosing the cylinder housing, and a deadbolt mechanism. The dustproof support ring includes a flange on an inner side thereof. The flange extends into a bore hole of the door and is in contact with an inner periphery delimiting the bore hole. A dustproof wall extends from the flange further into the bore hole and is in contact with the inner periphery delimiting the bore hole. The dustproof wall includes a notch through which a retractor of the deadbolt mechanism extends.
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