초록 ▼

An automatically controlled multi-blade damper device for use in air registers installed over furnace duct boots terminating in recesses of floors, ceilings, or walls of dwellings; said boots being part of a central heating and/or air conditioning system. The several damper blades are attached to a

An automatically controlled multi-blade damper device for use in air registers installed over furnace duct boots terminating in recesses of floors, ceilings, or walls of dwellings; said boots being part of a central heating and/or air conditioning system. The several damper blades are attached to a gear train and pivotably mounted in a damper housing assembly; said blades being rotatable between open and closed positions by motor driven damper blade attached to gear means and motor means; said motor means, electrically connected to furnace control means and to individual room thermostat, cooperate to maintain the preferred temperature environment in subject room.

대표청구항 ▼

Damper means automatically controlling the flow of a heating/cooling medium through ducts of a heating/cooling device, said ducts terminating in room floor, wall, or ceiling registers, said damper means comprising combinationally: (a) housing means having end panels and side panels forming an enclos

Damper means automatically controlling the flow of a heating/cooling medium through ducts of a heating/cooling device, said ducts terminating in room floor, wall, or ceiling registers, said damper means comprising combinationally: (a) housing means having end panels and side panels forming an enclosure with angular support means, said end panels receiving bearing pins supporting gear means of transmission means and damper blades of flow control means; said panels receiving grille bars spanning the top of said enclosure; (b) said flow control means being comprised of air sealing means and multiple damper blades rotatably supported in said enclosure by said bearing pins and a motor shaft, said bearing pins having attachment combinationally to said gear means and said damper blades; (c) said transmission means comprising motor means and said gear means, said motor means having an integral shaft, with attaching cam, connecting to a driver blade of said damper blades, transmitting motor rotation from said motor means to other said damper blades, all said blades being interconnected by said gear means; (d) electrical control means energizing and controlling said motor means of said transmission means and a fuel control device of said heating/cooling device, said electrical control means being comprised of thermostatic means electrically connecting relay means and said motor means to said fuel control device through switch means and light means; said relay means comprising first contacts operable by means of a coil, and second contacts operable by a time delay device.