An energy recovery ventilator door assembly includes an exterior door for a structure, the door including an inside fan and an outside fan for providing flows of air to a manifold. The manifold includes an inside manifold conduit for receiving stale inside air and an outside manifold conduit for receiving fresh outside air. A heat sink between the two conduits recovers heat energy from the warmer flow of air flowing in the conduits and transmits the recovered heat energy to the cooler of the flows of air in the conduits. A crossover element routs the inside conduit from the inside of the door to the outside of the door, and routs the outside conduit of the door to the inside of the door. Thus the air in the inside manifold conduit is vented to the outside of the structure through the door and the air in the outside manifold conduit is vented to the inside of the structure through the door.

An energy recovery ventilator door assembly includes an exterior door for a structure, the door including an inside fan and an outside fan for providing flows of air to a manifold. The manifold includes an inside manifold conduit for receiving stale inside air and an outside manifold conduit for receiving fresh outside air. A heat sink between the two conduits recovers heat energy from the warmer flow of air flowing in the conduits and transmits the recovered heat energy to the cooler of the flows of air in the conduits. A crossover element routs the inside conduit from the inside of the door to the outside of the door, and routs the outside conduit of the door to the inside of the door. Thus the air in the inside manifold conduit is vented to the outside of the structure through the door and the air in the outside manifold conduit is vented to the inside of the structure through the door.

Method and apparatus for ventilating an interior space, such as a large industrial structure with at least one bay opening. A ventilation system includes an array of M by N fans stacked into a two dimensional (2D) array. A rigid frame supports the array. A seal assembly provides a nominally fluid-tight seal between an outer perimeter of the array and the bay opening. A locking assembly mechanically couples the frame to the bay opening. In some cases, a bay door can be partially retracted and attached to a top of the frame. In other cases, the bay door may be fluidically permeable (e.g., a chain, a screen, etc.) and the array is secured behind a fully closed door. Cooling air is directed out the bay opening at a suitable time, such as overnight. A soft-start motor capability can be used to initiate operation of the array.

A window assembly including a master frame defining a master frame opening, a first window assembly secured within a first portion of the master frame opening, a screen member secured within a second portion of the master frame opening adjacent to the first window assembly, a second window assembly pivotably attached relative to the second portion of the master frame opening, and a window opening system that includes at least one extending arm pivotably attached to the second window assembly and extending through an opening in at least one of the screen member and a screen frame in which the screen member is secured, the extending arm(s) having at least one arm aperture, a flange extending from the master frame and comprising at least one flange aperture, and a locking member engageable with one of the arm apertures and one of the flange apertures.

This invention is directed toward a window for a garage door panel, where the window has an opening that is surrounded by a body portion, and can be manufactured as part of the manufacture of a garage door panel, or retrofitted into an existing garage door panel. The window has a sliding door that can be slid open to allow for air ventilation, and has bars so that pets cannot escape through the window when it is open, and some combination of a sliding screen and optional security bars to keep insects out and keep pets in the garage. The optional security bars can be bolted or otherwise attached to the panel, thereby not only strengthening the panel but also making it harder for pets to escape and any burglars to enter.

A lever mechanism system includes push arms pivotably coupled to a vent sash and drive arms pivotably coupled to the push arms. The system includes gears coupled to the drive arms and a locking gear slide coupled with a locking mechanism of the sash. The system includes a handle that rotates approximately 180 degrees in a first direction to pivot the gear slide to move the locking mechanism of the sash to an unlocked position and rotates the gears to extend the drive arms and the push arms such that the sash is pushed to an open position. The handle radially rotates approximately 180 degrees in a second direction to rotate the gears to retract the drive arms and the push arms such that the sash is pulled to a closed position and pivots the gear slide to move the locking mechanism of the sash to a locked position.

A lever mechanism system includes push arms pivotably coupled to a vent sash and drive arms pivotably coupled to the push arms. The system includes gears coupled to the drive arms and a locking gear slide coupled with a locking mechanism of the sash. The system includes a handle that rotates approximately 180 degrees in a first direction to pivot the gear slide to move the locking mechanism of the sash to an unlocked position and rotates the gears to extend the drive arms and the push arms such that the sash is pushed to an open position. The handle radially rotates approximately 180 degrees in a second direction to rotate the gears to retract the drive arms and the push arms such that the sash is pulled to a closed position and pivots the gear slide to move the locking mechanism of the sash to a locked position.

A ventilator door brings fresh outside air into a structure through an outside grill and a blower pulls outside air into a duct in the door and the air flows through the duct and into the structure through an inside grill remote from the outside grill. Heat is transferred from the flow of air to a heat sink disposed against the duct to cool the fresh air flowing into the duct. A regenerative heat sink may be used to capture heat from a flow of air from inside the structure and transfer the captured heat to a flow of outside air flowing into the structure. With the regenerative heat sink, a second blower is used to blow the inside air through the duct and outwardly through the outside grill before the outside air is pulled into the duct and blown past the regenerative heat sink to warm the air flow in to the structure. Several embodiments are included.

A ventilator door brings fresh outside air into a structure through an outside grill and a blower pulls outside air into a duct in the door and the air flows through the duct and into the structure through an inside grill remote from the outside grill. Heat is transferred from the flow of air to a heat sink disposed against the duct to cool the fresh air flowing into the duct. A regenerative heat sink may be used to capture heat from a flow of air from inside the structure and transfer the captured heat to a flow of outside air flowing into the structure. With the regenerative heat sink, a second blower is used to blow the inside air through the duct and outwardly through the outside grill before the outside air is pulled into the duct and blown past the regenerative heat sink to warm the air flow in to the structure. Several embodiments are included.

A recessed window assembly comprises a housing configured for recessed installation within a frame wall of a building adjacent a window opening and at least two sliding window components slidingly disposed within the housing such that the sliding window components are at least substantially disposed within the housing when in a non-deployed position and that fill the window opening when in a deployed position. The window components can comprise, for example, a transparent untinted window, a transparent tinted window, a translucent window, a window screen, a security plate, an electric fan, or an air filter.