F - Mech Eng,Light,Heat,Weapons – 27 – B
Patent
F - Mech Eng,Light,Heat,Weapons
27
B
39/29, 202/46
F27B 7/24 (2006.01) F16J 15/34 (2006.01) F16J 15/40 (2006.01) F27B 7/06 (2006.01)
Patent
CA 1154249
ABSTRACT OF THE DISCLOSURE A hydrostatic retort seal for sealing to a sealing disc on a rotatable vessel portion of a rotary retort. An annular caliper assembly or annular seal jacket is mounted concentrically around the sealing disc. The annular caliper assembly includes a body portion having two arms. Each arm on its interior surface includes an annular sealing channel which is filled with liquid under pressure to provide a liquid interface seal layer between the caliper assembly arms and the sealing disc. The sealing channels are movable laterally relative each other and are biased inward so that the distance between the two channels or liquid interface seal layers may be adjusted continually to accommodate nutations and other variations of the sealing disc. The caliper assembly is mounted to a stationary retort portion by way of gimbals to allow universal movement of the caliper assembly as it responds to sealing disc nutations. To complete the retort seal, a flexible seal boot is provided between the caliper assembly and stationary retort portion. This provides a complete retort seal where the sealing disc is sealed to the annular caliper assembly by an interface sealing layer with the caliper assembly being in turn sealed to the stationary retort portion by the flexible boot.
389356
Gowling Lafleur Henderson Llp
Tosco Corporation
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