Abstract: A switch is disclosed for selecting a port. The switch includes a dielectric layer, a first circuit, and a second circuit. The first and second circuits are disposed on the dielectric layer and electrically coupled to each other through the dielectric layer. The first circuit includes a set of ports. The switch further includes a control port for receiving a control signal and a plurality of switching elements. The control signal selects at least one of the set of ports to be connected to the second circuit by setting operational states of the plurality of switching elements.

Abstract: A switch is disclosed for selecting a port. The switch includes a dielectric layer, a first circuit, and a second circuit. The first and second circuits are disposed on the dielectric layer and electrically coupled to each other through the dielectric layer. The first circuit includes a set of ports. The switch further includes a control port for receiving a control signal and a plurality of switching elements. The control signal selects at least one of the set of ports to be connected to the second circuit by setting operational states of the plurality of switching elements.

Abstract: A switch is disclosed for selecting a port. The switch includes a dielectric layer, a first circuit, and a second circuit. The first and second circuits are disposed on the dielectric layer and electrically coupled to each other through the dielectric layer. The first circuit includes a set of ports. The switch further includes a control port for receiving a control signal and a plurality of switching elements. The control signal selects at least one of the set of ports to be connected to the second circuit by setting operational states of the plurality of switching elements.

Abstract: The present invention is an improved kaleidoscopic toy which has no moving parts and which provides a plurality of reproduceable optical shapes and patterns. The improved kaleidoscopic toy is a cube having six inner sidewalls, each of which has a mirrored surface with a plurality of transparent areas which are of a variety of shapes and which are colored with a stain glass paint of any one of a variety of colors. The cube is formed from six identical flat, square-shaped pieces of a transparent material, either plastic or glass. A first layer of mirror backing paint is applied to the outer sidewall of each of the six identical flat, square-shaped pieces and is interrupted only by the plurality of transparent areas of the mirrored surface. A second layer of dark paint is applied over the first layer. The transparent areas of the mirrored surface are formed by using a variety of cut-out shapes as masks when the layer of mirror backing paint is placed on the outer sidewalls of the cube.

Abstract: An orthodontic band and band seating tool therefor includes a seamless tubular band dimensioned to closely encircle a tooth. The band is provided with a plurality of integrally formed protrusions spaced thereabout with the integrally formed protrusions having an engagement surface adapted to cooperate with the band seating tool during the installation of the band about the tooth. The band seating tool provides an elongated handle and a seating element rotatably affixed to one end of the elongated handle, the seating element having a surface for cooperating with the engagement surface of the integrally formed protrusions.