Patent ID: 7047649

Claim:
A hand-held electrical device comprising: a housing configured to be hand-held during operation of the hand-held electrical device, the housing defining an aperture; an electrical component positioned in the housing; a receptacle electrically coupled to the electrical component, the receptacle having a body portion including a first end portion located adjacent the aperture, a second end portion, and a recess portion extending from the first end portion towards the second end portion, a male terminal having a male terminal portion located in the recess and extending in a direction from the second end portion toward the first end portion, and a detent terminal having a detent terminal portion located in the recess; and a power cord configured to provide direct current voltage to the electrical component when the power cord is operatively received in the receptacle, the power cord having a cord portion including first and second electrical conduits and a plug portion, the plug portion comprising: a generally cylindrical outer terminal electrically coupled to the first electrical conduit and including a contact surface that defines a first diameter of the plug portion; a female terminal electrically coupled to the second electrical conduit and located radially inward of the outer terminal; and an insulator portion that electrically insulates the outer terminal from the female terminal, the insulator portion including a tip portion that extends axially beyond the outer terminal in a direction away from the cord portion, the tip portion defining a second diameter of the plug portion, the second diameter being larger than the first diameter, the tip portion including a shoulder extending radially outward from the outer terminal, wherein when the plug portion is operatively received in the receptacle, the male terminal extends into and electrically contacts the female terminal, and the detent terminal is biased against and electrically contacts the outer terminal, and the detent terminal is biased against the shoulder such that engagement of the detent terminal by the shoulder provides axial resistance against the removal of the plug portion from the receptacle.