Patent ID: 7223126

Claim:
A plug device for plugging into a country specific electrical plug receiving socket comprising a base part having first plug contacts and at least one country specific electrical plug adapter, engageable to the base part, the base part having a plug socket for engagement with a plug projection of the plug adaptor; wherein a flat end and flat sides of the plug projection respectively abut against a flat bottom and flat sides of the plug socket, the plug projection of the plug adapter having plug receiving sockets into which the first plug contacts can be correspondingly engaged thereto and second country specific plug contacts for corresponding engagement into the country specific plug socket; a length of the first plug contacts being parallel to that of the second country specific plug contacts, the first plug contacts each having a cross-sectional area substantially smaller than that of the second country specific contacts; wherein the at least one plug adapter may be locked in the base part without using a tool in a mounted position using locking apparatus and may be detached from the base part after unlocking the locking apparatus; the locking apparatus having a resilient actuating element fixed to the end of the plug projection of the plug adapter with a free end extending back toward an end of the plug adapter opposite to the end of the plug projection, and at least one detent projection on the actuating element for fitting into a detent recess on an inner side of a wall forming the plug socket of the base or alternatively the detent recess being on the actuating element and the projection being on the inner side of the wall; wherein the at least one detent projection or detent recess is positioned on the resilient actuating element between an end of the actuating element fixed to the end of the plug projection and the free end of the resilient actuating element; and wherein when the base part and plug adaptor are locked together, the free end of the resilient actuating element projects out from under the inner side of the wall forming the plug socket and up from the plug adapter to permit release of the locking apparatus when the free end is pressed down away from the inner side of the wall.