Abstract: A pre-fabricated window assembly for flush-appearance glazing comprises a conventional single-pane or dual-pane assembly. In the latter case, the spacer elements are inset from the peripheral edges of the window assembly. One of two types of extrusion is provided along each peripheral edge of the window assembly which provides a bonding surface to which the flush mounted lite is adhered by means of a bonding cement plug. The extrusion on one side of each pair of opposed sides of the window assembly is provided with a quick push-on or hook-on connector which mates with a complementary connector on the mullion or grid frame. The other extrusion on the opposite side of the window unit, for each pair of opposed sides, is similarly configured, except that the connector is a permanent connector for permanent securing of the extrusion to an appropriate mating fastener on the grid frame.

Abstract: An electronic sensing device, operates to actuate a household lighting fixture in response to a sensed environmental condition such as sound or movement within a room. The device is provided with a receiver for sensing the particular environmental condition, a timer responsive to the output of the receiver, switching apparatus for switching on the household lighting fixture in response to the timer, and a power-providing circuit. The timer provides that the lighting fixture will remain on for a preselected time after sensing the environmental condition, and continually resets in the continued presence of the environmental condition. The switching apparatus switches the light fixture on in response to the timer output and further provides circuitry for varying the switched-on duty cycle of the lighting fixture in order to provide a dimmer control. The power-providing circuitry applies a portion of the leading edge of each half cycle of line current to power the circuitry of the sensing device.