Abstract: A unitary roller skate sole plate is provided with downwardly open recesses for receiving the strut arms of attached wheel trucks. The recesses include shaped, resilient cushions having sockets for holding the strut arms ends while allowing generally universal motion thereof.

Abstract: There is disclosed an improved roller skate having a unitary soleplate. The roller skate includes a pair or truck assemblies secured to the bottom surface of the soleplate at the toe portion and at the heel portion by a threaded fastener. The soleplate has an aperture for receiving each threaded fastener and a recess for receiving and confining an enlarged end portion of the fastener, and slot means in the soleplate, communicating with the aperture and the recess, allow insertion of the threaded fastener from the bottom of the soleplate.

Abstract: A molded, plastic, hollow electrical connection box is disclosed. To support itself in a wall panel opening, the box includes stop ears formed at each end wall corner which extend perpendicularly to the end wall. Cooperating, mediately located cam segments of trapezoidal shape originally extend diagonally outwardly in planar configuration from the box end walls. After passing the panel during box insertion installation, the cam segments are permanently, rotatably deformed into positions extending generally parallel to the box end walls. In these positions, they permanently and compressively engage the supporting wall panel.

Abstract: A box for receiving electrical outlets, switches, cover plates and the like of standard size and including a portion insertable through an opening in a wall and projecting laterally of the opening when fully assembled for increasing the interior volume of the box.