Closure fasteners – Bolt casings
Patent
1988-11-17
1992-04-07
Nicholson, Eric K.
Closure fasteners
Bolt casings
29216921, E05C 116
Patent
active
051021757
ABSTRACT:
A dual backset deadbolt assembly comprises a deadbolt mounted in a deadbolt housing for movement to a locking position or an unlocking position, an extension housing having two parallel side walls which are provided with two cam guide slots located at two different backset distances, a transmission plate means having a front engaging member to connect with the deadbolt and a rear forked portion, the rear forked portion having two rearwardly extending strip members and an elongated opening between the strip members, the strip members having at least one pair of engagement members, the engagement members being formed respectively on the strip members, a single cam member mounted in the extension housing and having at least one spindle slot to be put in an alignment with at least one of the cam guide slots, the cam member having at least one pair of camming members which can engage with the engagement members to actuate the transmission plate.
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Wu Rong-Faa
Wu Shoei-Jyi
Nicholson Eric K.
Posse Lock Manufacturing Co. Ltd.
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