Abstract: A heating, ventilating, and air conditioning (HVAC) system includes a thermostat, a temperature sensor, a plurality of occupancy sensors in a plurality of zones in a room in a building, a plurality of airflow vents in the plurality of zones in the room, and a motor coupled to each of the plurality of airflow vents. The system receives temperature set point data from the thermostat, receives temperature data from the temperature sensor, receives occupancy data from the occupancy sensors, turns on a heating unit or a cooling unit as a function of the temperature set point data from the thermostat and the temperature data from the temperature sensor, and controls the flow of heated air or cooled air into the zones in the room by transmitting a signal to one or more of the motors so as to adjust the plurality of airflow vents in the room.

Abstract: A sash lock for single- and double-hung window installations having upper and lower sashes having respective lower and upper check rails. The sash lock includes a latch for being pivotably mounted to the upper check rail of the lower sash, and a catch for being fixedly secured to the lower check rail of the upper sash. The latch includes a draw member, and the catch has a concave surface for being slidably engaged by the draw member. The concave surface is configured so that when the draw member is increasingly engaged with the catch the sash lock forces the upper and lower sashes into proper vertical alignment with one another regardless of whether upper check rail of the lower sash is initially above or below the lower check rail of the upper sash.

Abstract: A damper system includes a first plate having a plurality of openings and a second plate having a plurality of openings. A cam is coupled to the first plate, and a motor is coupled to the cam. The motor turns the cam, and the cam moves the first plate in relation to the second plate, thereby aligning or offsetting the openings of the first and second plates.

Abstract: An airflow vectoring access floor panel for raised floor data centers has an access panel and a plurality of airflow deflectors. Each of the plurality of airflow deflectors can be independently rotated to affect the directionality of the emanating airstreams. The airstreams can be diverged, converged or impinged in any direction to intersect with the intakes of IT racks within a data center. A fan assembly can be placed underneath the unit to increase the volume of airflow and thus the number and heat load of the IT racks that can be supplied by a single access panel. The airflow deflectors may be rotated manually or by electromechanical drives.

Abstract: A sash lock for single- and double-hung window installations having upper and lower sashes having respective lower and upper check rails. The sash lock includes a latch for being pivotably mounted to the upper check rail of the lower sash, and a catch for being fixedly secured to the lower check rail of the upper sash. The latch includes a draw member, and the catch has a concave surface for being slidably engaged by the draw member. The concave surface is configured so that when the draw member is increasingly engaged with the catch the sash lock forces the upper and lower sashes into proper vertical alignment with one another regardless of whether upper check rail of the lower sash is initially above or below the lower check rail of the upper sash.