Locking connector for detachable power cords
Patent 5190466 Issued on March 2, 1993. Estimated Expiration Date: 
July 9, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
July 9, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2654073 3345603 Locking device for the prongs of an electrical plug Safety and security outlet Apparatus for preventing unauthorized use of electrically powered equipment Electrical plug locking device Electrical plug lock apparatus Lockout device for electrically operated equipment and devices Patent #: 4957446 InventorApplicationNo. 727461 filed on 07/09/1991US Classes:439/304, Including lock for retaining means (e.g., key or combination lock or requiring "special" tool)70/58, For portable articles439/133WITH UNAUTHORIZED CONNECTION PREVENTER, E.G., KEY OR COMBINATION LOCKExaminersPrimary: Paumen, Gary F.Assistant: Vu, Hien International ClassH01R 013/62AbstractAn electrical connector (10) for a detachable power cord (18) that can be selectively locked in place when engaged in a standard appliance power socket (80) of an electrically powered applicance or device that utilizes a detachable power cord, such as a personal computer or a desk-top laser printer, for instance. A securing means (64, 88, 106) is provided to prevent removal of the connector from the appliance power socket, which in turn prevents circumvention of any access-control means that may be operatively associated with the power cord. A controlled-access operating means (30) is provided whereby an authorized user can lock the connector into or unlock the connector from the appliance power socket.Field of SearchIncluding lock for retaining means (e.g., key or combination lock or requiring "special" tool)Laterally moving slide WITH UNAUTHORIZED CONNECTION PREVENTER, E.G., KEY OR COMBINATION LOCK Prong cover With additional means to cause or prevent unlatching Rotatable retaining means, pivotable retaining means, or actuated gripping retaining means SPECIAL APPLICATION For portable articles | |
