Patent ID: 7510412

Claim:
A tamper resistant assembly for an electrical receptacle to receive a plug having contacts, comprising: a base member; a groove having a locking groove portion connected in between a first groove portion and a second groove portion in said base member; a shutter member slidably connected to said base member and having first and second resilient arms; and first and second protrusions extending downwardly from bottoms of said first and second resilient arms, respectively, and being movably received in said groove in said base member, said first and second protrusions being disposed in said locking portion of said groove when said shutter member is in a closed position and in said first portion when said shutter member is in an open position, said locking portion preventing separation of said first and second protrusions in the close position to prevent said first and second resilient arms from being separated and to prevent insertion of an object therebetween; wherein said first and second groove portions of said groove are wider than said locking groove portion.