Abstract: The present invention is a novel and unique double window apparatus with insect/solar screens designed for many applications such as residential office buildings and schools. The present invention has three important features which are as follows: first, the double window apparatus has insect/solar screens between the exterior and interior windows; secondly, a pressure chamber is created between the exterior and interior windows and the pressure chamber reduces water entry; and third, the window contains perforated screen tracks covering the fiberglass which serve to reduce the noise transmission inside the building structure. The present invention is utilized as a solar energy admitting device for rejecting or accepting the sun's energy.

Abstract: A solar energy collector means comprising a rectangular frame, a back wall of thin sheet material bonded and sealed at its margins to said frame, a light transmitting plate bonded and sealed to said frame in spaced relation to said back wall to provide a rigid structure, a solar energy absorber and coil means located between said back wall and said plate, a blanket of insulating material between said absorber coil assembly and said back wall, and means for laterally and longitudinally positioning said solar energy absorber and coil means with respect to said frame without metal-to-metal contact between said frame, back wall, and said absorber means, and whereby said solar absorber and coil means is limitedly floatable on said insulating blanket and adapted to expand and contract without stressing said frame. A solar collector provided with removable breathing desiccant means supported within said frame on said absorber means.

Abstract: A readily removable closure panel for an opening in a roof or wall of a vehicle and including a quick release hinge means for permitting partial opening of the panel and for rapid disengagement and removal of the panel from the roof. An adjustable hinge construction for a panel wherein the hinge construction includes a resilient yieldable hinge member which provides a hinge edge for releasable pivotal engagement with a cooperable frame portion of a frame member defining an opening in the roof. The hinge edge engagement provides a hinge axis beneath or interiorly of the panel margin and the hinge edge is adjustably spaced therefrom for causing the panel edge margin to press against a resilient gasket on the frame member in both closed and partially opened position of the panel.