Abstract: A security device characterized by a base which attaches to the top of an upper track of a sliding door or window, a wedging member having an end pivotally attached to the base, a spring biasing the wedging member towards the base, and a propping member having an end pivotally attached to the base and movable, under the influence of gravity, to an overcenter position to retain the wedging member in an open, wedging position. When closed, the device fits within the space between the top of the sliding door or window and the top of the upper track of the door or window, and when open the device prevents or limits the opening of the sliding door or window.

Abstract: A collapsible door wedge characterized by: a channel shaped base member; a channel shaped incline member pivotally attached at one end to an end of the base member; a prop member pivotally attached to the other end of the base member; and a quick release latch mechanism attached to the incline member for retaining the prop member in its propping position. The incline member has a lower surface provided with a pair of downwardly extending stops defining a latching space receptive to an end of the prop member. The latch mechanism includes a shaft extending through a chamber of one of the stops, a striker attached to one end of the shaft, a knob attached to the other end of the shaft, a washer for supporting the latch mechanism, and a spring disposed around the shaft for biasing the striker towards the latching space.