F - Mech Eng,Light,Heat,Weapons – 27 – B
Patent
F - Mech Eng,Light,Heat,Weapons
27
B
277/20.2
F27B 7/24 (2006.01) F16J 15/52 (2006.01)
Patent
CA 1124760
ABSTRACT OF THE DISCLOSURE A rotary kiln having rotating members, stationary members, a kiln chamber, and a seal assembly for providing a fluid-tight seal between the rotating members and the stationary members, comprises: a rotating kiln having an integral, rotating, outwardly-facing, U-shaped, annular rim providing two opposing rim surfaces; and a stationary bellows assembly comprising two concentric expandable bellows sealingly attached to two opposed end sealing members so as to define a fluid-tight annular bellows chamber, said bellows assembly being disposed between the two opposing rim surfaces of the annular rim so as to define a seal chamber between the inner concentric bellow and the inside of the U-shaped rim. Sealing means are included for providing a fluid-tight seal between the rotating opposing rim surfaces and the stationary members, wherein the sealing means prevents fluid communication between the interior of the seal chamber and the exterior of the seal chamber; and pressuring means are provided for maintaining the bellows chamber at a pressure which sufficiently biases the end sealing members outwardly so as to maintain an effective seal between the end sealing members, the sealing means, and the rim surfaces.
338174
Gowling Lafleur Henderson Llp
Tosco Corporation
LandOfFree
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