An improved window includes pivot pins at each side of the window sash. The pivot pins are received within guide channels in a window frame for mounting the window sash. The window sash may be quickly and easily mounted within the window frame by merely inserting one of the pins, and then moving the other pin into alignment with its channel. The window sash is provided with a two-part stop surface that securely retains the window sash within the window frame. No hardware is required. The window sash is formed with a ledge extending forwardly of the window sash that abuts a forward end of the window frame, and a rear corner of the window sash abuts a rear face of the window frame such that two stop surfaces are provided between the window sash and the window frame.
An improved hopper vent is provided which includes many novel features. The hopper vent includes a removable sash window that is removable from the interior side of the hopper vent. The removable sash window is spring loaded into the frame of the hopper vent and is injection molded for easy manufacture. The hopper vent also includes a removable screen which is also removable from the interior side of the hopper vent. The hopper vent also includes a pivot system to allow the removable sash window to pivot open instead of rotating open like in previous, hinge-based systems. Also, the hopper vent includes a dam system which prevents water from draining to the interior of the hopper vent. The dam system includes a front riser to prevent water from draining to the interior of the hopper vent and a drain, such as weep holes or a gap between the frame and the screen of the hopper vent, to allow water to drain to the exterior of the hopper vent. The removable sash window of the hopper vent is also fixedly positionable at a plurality of different openings.
A hinge assembly has a hinge door that is pivotally mounted to a hinge base. The door has a flat body with a pair of square tabs extending laterally from one end. The hinge base has a flat frame with a rectangular aperture. A pair of parallel, rigid flanges extend from the aperture in the frame. Each flange has an entry hole that leads into a diagonal slot. The slots terminate in circular recesses. The hinge door is installed in the hinge base to form the assembly by initially positioning the tabbed end of the door diagonally in the aperture. The tabs are then elevated slightly above the frame and rotated into alignment with the entry holes. The door is angled into alignment with the diagonal slots and lowered in that plane. This motion causes the tabs to move past the entry holes, through the slots, and into the circular recesses to form the hinge assembly. The recesses closely receive the tabs on the door to allow pivotal motion therebetween.
