Plug adapter with safety switch
Patent 6416362 Issued on July 9, 2002. Estimated Expiration Date: 
January 19, 2021. 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.
January 19, 2021. 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 2323736 2876426 2922134 2984808 2986718 3134631 3178667 3219962 Electrical receptacle with releasable locking means Wall outlet lock apparatus InventorsApplicationNo. 766111 filed on 01/19/2001US Classes:439/651, Combined with plug having spaced, longitudinally engaging, prong-like contacts200/51R, COMBINED WITH OR ACTUATED BY CONNECTOR COUPLING439/346Adapted to engage contact of mating partExaminersPrimary: Nguyen, KhiemAttorney, Agent or FirmInternational ClassH01R 025/00AbstractThis invention is a three-wire grounding electric adapter that is comprised of a body, a first end and a second end wherein said first end has a vertical planar face capable of detachably engaging a 3-wire electric cord, said second end has a second vertical planar face. The body has a switch that is mounted on said body for permitting said adapter to complete, or disrupt positive electrical current from electrical receptacle to an electric device of at least two electric contact blades. The blades are fixedly mounted in said second end and extending outwardly from said second vertical planar face for engaging in an electric outlet. A security screw for securing at least one blade of an electric device plug into said adapter locking at least one blade into the adapter.Field of SearchCOMBINED WITH OR ACTUATED BY CONNECTOR COUPLINGDummy connector HAVING CIRCUIT INTERRUPTING PROVISION EFFECTED BY MATING OR HAVING "DEAD" CONTACT ACTIVATED AFTER MATING Two or more plural-contact coupling parts combined in one integral unit Unit includes receptacle for receiving plug having spaced, longitudinally engaging, prong-like contacts Combined with plug having spaced, longitudinally engaging, prong-like contacts Adapted to engage contact of mating part | |
