Tomkins Industries, Inc.

Michael Gene Wiltfong

Dennis Leroy Davis

An isolation damper for positioning in a duct passageway has a housing which forms a sealing chamber. The housing has a removable access panel for providing access to the sealing chamber. The damper has a blade which is capable of being actuated between an open position, wherein it allows passage of gas through the housing, and a closed position, wherein the passage of gas through the housing is blocked. A replaceable seal unit is slidably positionable within the sealing chamber by removing the access panel. The seal unit includes a first sealing plate and a second sealing plate. Each plate has an opening formed therein to allow passage of gas therethrough. Further, each plate also has a flexible sealing member attached thereto and extending about the periphery of the opening. The sealing members contact opposite surfaces of the blade when the blade is in its closed position to prevent passage of gas through the housing.

Growing community of inventors

Blairstown, MO, United States of America

Michael Gene Wiltfong