Traverse motion HVAC valve

An assembly for controlling air flow in an HVAC system comprising;

• a housing defining a first outlet having a first outer periphery and a second outlet having a second outer periphery and oppositely facing said first outlet,
• a blower for blowing air through said housing,
• a heat exchanger for heating and cooling the air in said housing,
• said first outer periphery being fan-shaped to define a first arc,
• said second outer periphery being fan-shaped to define a second arc equal in size and shape to said first arc,
• a shaft rotatably supported by said housing outside said peripheries of said outlets and extending along an axis between and perpendicular to said peripheries of said outlets,
• a first plate valve for covering said first outer periphery of said first outlet in a closed position and movable axially away from said first outlet the to an open position,
• a second plate valve for covering said second outer periphery of said second outlet in a closed position and movable axially away from first outlet to an open position,
• said first plate valve including a first bushing defining a first interior surface surrounding said shaft and a first plate extending radially from said first bushing in a fan-like shape for sealing said first periphery of said first outlet and a first reinforcing web interconnecting said first bushing and said first plate for reinforcing said first plate on said first bushing,
• said second valve including a second bushing defining a second interior surface surrounding said shaft and a second plate extending radially from said second bushing in a fan-like shape for sealing said second periphery of said second outlet and a second reinforcing web interconnecting said second bushing and said second plate for reinforcing said second plate on said second bushing,
• said first plate valve including a first guide plate defining a first upper surface extending parallel to and through said first contoured surface of said first outlet for limiting rotation of said first valve relative to said axis in response to rotation of said shaft and a first lower surface having a contoured shape extending parallel to said axis for directing air flow through said first outlet in the open position,
• said second plate valve including a second guide plate defining a second upper surface extending parallel to and through said second contoured surface of said second outlet for limiting rotation of said second valve about said axis in response to rotation of said shaft and a second lower surface having a contoured shape extending parallel to said axis for directing air flow through said second outlet in the open position,
• said shaft having oppositely threaded first and second sections disposed at opposite ends of said shaft,
• said interior surfaces of said bushings being oppositely threaded, and
• said first interior surface of said first bushing being in threaded engagement with said first section of said shaft and said second interior surface of said second bushing being in threaded engagement with said second section of said shaft for moving said plate valves axially toward one another in response to rotation of said shaft in a first direction and moving said plate valves axially away from one another in response to rotation of said shaft in a second direction opposite to said first direction.