Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1979-12-17
1981-07-28
Ward, Jr., Robert S.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 27, 277 58, 277192, 105282A, 105424, 220 81R, 220378, B61D 722, F16J 1506, F16J 1540
Patent
active
042807069
ABSTRACT:
A seal is provided between an outlet mounting flange and a hopper mounting flange. The seal extends in-board of the inner hopper wall and includes a projection extending upwardly which engages the hopper wall. The seal further includes a tapered portion which extends inwardly and downwardly from the projection. Thus lading and pressure in the outlet act to urge the projection into engagement with the vertical wall and the tapered portion into engagement with its supporting surface. In one embodiment a void space is located below the projection which is compressed in assembly to create a tight fit of the seal against the hopper wall. In another embodiment an outer flange portion is provided which extends around the inner end of the hopper mounting flange to aid in positioning the seal for assembly. In one application the seal is used in a fluidizing outlet which includes a metal sheet containing at least one opening through which the fluidizing medium passes and a layer of filter material resting thereon to remove impurities in the fluid.
REFERENCES:
patent: 1251683 (1918-01-01), Miller et al.
patent: 2360345 (1944-10-01), Hilkemeier
patent: 3485183 (1969-12-01), Floehr
patent: 3621793 (1971-11-01), Floehr
patent: 3807318 (1974-04-01), Chierici
patent: 3831803 (1974-08-01), Hutchison et al.
ACF Industries Inc.
Cummings Henry W.
Ward, Jr. Robert S.
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