发明名称 Safety locking handcuffs
摘要 A handcuff assembly comprising a pair of handcuff bodies retained to one another by one or more linkages. Each body extends between a pivot end and a body latching end. A locking arm is pivotally assembled to the handcuff body pivot end. A series of ratcheted teeth extend along a portion of each locking arm proximate an arm latching end. A first locking pawl is integrated into each handcuff body, wherein the first locking pawl is operated by a key to engage the pawl with the ratcheted teeth, retaining the handcuff assembly in a locked configuration. A second locking mechanism is provided at the pivot assembly, wherein the second locking mechanism resists pivotal motion of the locking arm when oriented into a locked configuration by way of rotating a key. The handcuff assembly requires rotation of two separate locking mechanisms by two separate key motions to unlock each locking arm.
申请公布号 US8776555(B1) 申请公布日期 2014.07.15
申请号 US201213716502 申请日期 2012.12.17
申请人 发明人 Lofgren Matthew S.
分类号 E05B75/00 主分类号 E05B75/00
代理机构 Gold & Rizvi, P.A. 代理人 Gold & Rizvi, P.A. ;Gold Glenn E.
主权项 1. A method of operating a safety locking handcuff assembly comprising steps of: obtaining said safety locking handcuff assembly, said safety locking handcuff assembly comprising: a pair of handcuff bodies retained to one another by one or more linkages, each handcuff body extending between a body pivot end and a body latching end,a locking arm extending between a locking arm latching end and a locking arm pivot end, said locking arm pivot end being pivotally assembled to said handcuff body pivot end,a latching feature integrated into each locking arm proximate said locking arm latching end,a first locking mechanism integrated into each handcuff body proximate said body latching end, wherein said first locking mechanism is operated by a first key, which alternates said first locking mechanism between an engaged configuration and a disengaged configuration respective to said locking arm latching feature, anda second locking mechanism integrated into each handcuff body proximate said body pivot end, wherein said second locking mechanism is operated by a second key, which alternates said second locking mechanism between an engaged configuration and a disengaged configuration respective to said locking arm pivot end, rotating said locking arm separating said locking arm latching end from said body latching end; placing a object between said handcuff body and said locking arm in a manner to be retained therebetween when said safety locking handcuff assembly is placed into a locked configuration; operating said first key engaging said first locking mechanism with said locking arm latching feature to retain said locking arm latching end in mechanical communication with said body latching end; and operating said second key engaging said second locking mechanism with said locking arm pivot end to retain said locking arm from rotating.
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