Other

Anemostat Products Division, Dynamics Corporation of America

Leonard R Phillips

An access door primarily designed to provide an insulated entrance to heating, ventilating and air conditoning ducts consisting of a two-pan structure lockably connected together by a simple unfastening means.

Access door

This invention relates to a fire and smoke damper assembly capable of being positioned in interruptive disposition relative to the flow of air through a conduit wherein the assembly includes a flexible curtain movably mounted on the frame and attached in driven relation to a curtain mounting rod rotatably mounted on the frame. The rod and curtain are driven manually by biasing means or by exteriorly mounted motor means. Curtain guide elements including a pair of screens are arranged in spaced, substantially parallel relation to one another across the face of the conduit so as to define a channel in which the curtain is movable relative to the screens into and out of engagement about the curtain periphery with the frame. In another embodiment the curtain is mounted on a rod and pulled therefrom by a negator spring to close the conduit, and in still another embodiment, the curtain is maintained in an extended or flattened condition in its open position and is pulled therefrom by a negator spring to its closed position.

Air control damper

An air conditioning system capable of regulating the temperature of incoming air and further comprising safety features relating to the sensing of abnormal conditions within a room or like treated area concerning the detection of fire, smoke or abnormally high temperature conditions. The flow of air from the exterior of the system is directed to the interior of the room or area being conditioned by a fan or like blower element while being conditioned through direct exposure to hot or cold conditioning fluid. Safety features include sensing elements connected to a liquid spray assembly as well as the blower and air intake so as to determine the amount of incoming air pressure as well as regulate the delivery of certain safety liquids such as water, through the spray assembly.

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St. Petersburg, FL, United States of America

Leonard R Phillips