초록 ▼

An air flow reverser apparatus for use in association with an air flow system having air supply and return port means, said apparatus comprising a main supply duct, and a main return duct, said ducts being connectable to said respective supply and return port means of said air flow system, at least

An air flow reverser apparatus for use in association with an air flow system having air supply and return port means, said apparatus comprising a main supply duct, and a main return duct, said ducts being connectable to said respective supply and return port means of said air flow system, at least two branch supply ducts communicating with said main supply duct, at least two branch return ducts communicating with said main return duct, supply damper means for selectively shutting off at least one of said branch supply ducts, while leaving at least one said branch supply duct open, return damper means for selectively shutting off at least one of said branch return ducts while leaving at least one said branch return duct open, and means interconnecting said supply and return damper means whereby when a selected one of said branch supply ducts is closed, a selected one of said branch return ducts is open, and power operated means for moving the same from one position to another simultaneously.

대표청구항 ▼

A processing chamber with air flow reverser apparatus for use in association with an air flow system having air supply and return port means, said air flow reverser having; a main supply duct, and a main return duct, said ducts being connectable to said respective supply and return port means of sai

A processing chamber with air flow reverser apparatus for use in association with an air flow system having air supply and return port means, said air flow reverser having; a main supply duct, and a main return duct, said ducts being connectable to said respective supply and return port means of said air flow system; at least two branch supply ducts communicating with said main supply duct; at least two branch return ducts communicating with said main return duct; supply damper means movably operable for selectively shutting off at least one of said branch supply ducts, while leaving at least one said branch supply duct open; return damper means movably operable for selectively shutting off at least one of said branch return ducts while leaving at least one said branch return duct open; means interconnecting said supply and return damper means for movement in unison whereby when a selected one of said branch supply ducts is closed, a selected one of said branch return ducts is open; power operated means for moving the same from one position to another simultaneously and wherein said processing chamber comprises; chamber means defining two chambers arranged side by side through which air is passed by said air flow system; side duct means in said chamber means, and, centre duct means defining an intermediate partition wall located between and separating said two chambers from one another, and defining a hollow interior, through which air may flow in either direction as aforesaid, said centre duct means being connected to one of said branch supply ducts and to one of said branch return ducts, and said side duct means being connected to at least one other of said branch supply ducts and branch return ducts whereby air may be caused to flow in said chamber means either from said side duct means to said centre duct means or from said centre duct means to said side duct means.