Abstract: A window frame including a pair of identical frame halves that can be interconnected without fasteners. Two different connector systems are integrally formed with the frame halves, and the frame halves have two possible orientations with respect to one another—a ship orientation and an install orientation. The first connector system releasably interconnects the frame halves in either orientation. The second connector system essentially permanently interconnects the frame halves only in the install orientation—not in the ship orientation.

Abstract: A follower for a window accessory within an insulated glass assembly. The follower includes a body having first and second sides adapted to face first and second spaced glazing panels. The follower further includes at least one magnet within each of the two sides, so that the follower will couple with a magnetic operator placed on either of the glazing panels. The follower yet further includes wheels having a diameter larger than the width of the body to rotatably support the follower against either of the glazing panels.

Abstract: A window assembly including a permanent frame portion, a removable frame portion, and a glazing panel sandwiched between. The frame portions are easily installed and include integral releasable connectors accessible using a thin tool inserted into a groove between the two frame portions. The removable frame portion can be removed from the permanent frame portion using a thin tool. With the removable frame portion removed, the insulated glass panel may be easily replaced.

Abstract: A lighted insulated glazing assembly including a light source. In a first aspect of the invention, the light source is within the insulated glazing assembly; and power is routed from the light source through the spacer assembly to a battery or wired power source located outside the assembly. In a second aspect of the invention, the light source is outside of the insulated glazing assembly. In both aspects, various light manipulators can be included to manipulate the light in order to create a desired lighting or visual effect.

Abstract: A retrofit blind assembly for a doorlight. The assembly includes a frame, a transparent panel, and a blind snap-fitted to the frame. The blind actuator includes gears and a toothed belt for positive, non-slip actuation. A pair of blind guides are mounted on the opposite sides of the frame to receive and guide the opposite ends of the blind. The mounting system includes a pair of brackets that can be secured between the doorlight and the door and upon which the assembly can be hung. The mounting system also includes a pair of movable catches on the lower portion of the frame snap that can be locked behind the doorlight to secure the lower end of the assembly.

Abstract: An insulated glass window assembly including an integral shade that can be raised and lowered at both its upper and lower edges. The assembly includes an insulated glass, a frame for mounting the insulated glass within a supporting structure, the shade within the glass, and operator bars outside the glass. The operator bars are magnetically coupled through the glass to the upper and lower edges of the shade. Accordingly, the upper and lower edges can both be raised and lowered independently to provide a wide variety of positioning options.

Abstract: A window frame including a pair of frame halves having integral fasteners for interconnecting the frame halves. The fasteners include mating barbed connectors that interfit with one another to permanently intersecure the frame halves. The fasteners further include integral cooperating alignment pins and receivers for aligning the fasteners and hence the frame halves. The alignment pins and receivers are laterally offset from the fasteners.

Abstract: A window frame including a pair of identical frame halves that can be interconnected without fasteners. Two different connector systems are integrally formed with the frame halves, and the frame halves have two possible orientations with respect to one another—a ship orientation and an install orientation. The first connector system releasably interconnects the frame halves in either orientation. The second connector system essentially permanently interconnects the frame halves only in the install orientation—not in the ship orientation.

Abstract: A retrofit blind assembly for a doorlight. The assembly includes a frame, a transparent panel, and a blind snap-fitted to the frame. The blind actuator includes gears and a toothed belt for positive, non-slip actuation. A pair of blind guides are mounted on the opposite sides of the frame to receive and guide the opposite ends of the blind. The mounting system includes a pair of brackets that can be secured between the doorlight and the door and upon which the assembly can be hung. The mounting system also includes a pair of movable catches on the lower portion of the frame snap that can be locked behind the doorlight to secure the lower end of the assembly.

Abstract: An insulated glass assembly including two glass panels each have a plastic frame molded about its perimeter, with the plastic frames welded or otherwise joined together. The molded plastic frames form an airtight seal with each other and with the glass panels.

Abstract: A retractable screen door for drawing a flexible screen panel across an opening, including a flexible screen wound around a spring biased take-up shaft, and guide rails for guiding the screen as it is moved across the opening. A unique latch mechanism is disclosed, said latch mechanism being located in the guide rails. Further, the screen may include an adjustable gear assembly for changing the tension on the spring. The retractable screen is optionally designed to have the appearance of a common door casing.

Abstract: A tubular skylight having an improved dome improving the efficiency of the skylight. The dome includes an integral prism in a portion of its outer surface to reflect light downwardly through the skylight. The dome is hemispherical, and the prism includes a plurality of grooves extending along great circles that pass through the apex of the dome. The prism covers only an angular segment of the hemispherical dome; and the grooves stop short of the apex of the dome.