| 摘要 |
An electrical receptacle lock having a housing carrying a pair of prongs to be mounted in a conventional wall outlet. Openings are provided in the housing to receive the plug prongs of an appliance to be controlled by the lock. One contact in the housing connects one plug prong to a housing prong, and a second contact connects the other prongs. A key operated cam in the housing makes and breaks one of the contacts, and latching means carried by that contact mechanically locks onto the plug prong. The latching means is controlled by a stem mounted in the housing but cannot be operated to unlock the plug prong to enable the plug to be withdrawn unless the key operated cam is positioned to make the contact.
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