Permeable membrane seal assembly

Details Permeable membrane seal assembly Permeable membrane seal assembly

1982-04-16

1984-01-31

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 27, 277 58, B61D 722, F16J 1506

Patent

active

044285850

ABSTRACT:
A permeable membrane seal (10) includes a body portion (12) made of elastomeric material. The body portion includes an elongated slot (18) to receive a permeable membrane (20). The membrane is held in place with stitches of thread (22) sewn at about 90.degree. to the seal body portion. The stitched threads substantially prevent a flow path of fluidizing air from the permeable material outwardly to either side of the elastomeric body portion. Mechanical fasteners (44) located outboard of the stitches hold the reinforced elastomeric body portion in place between a hopper mounting flange and an outlet mounting flange. Optional fabric reinforcement increases the tensile strength of the elastomeric material to better withstand the membrane pressure load applied by the fluidizing media. The fabric reinforcement (14) is preferably molded integral with the elastomeric material.

REFERENCES:
patent: 4280706 (1981-07-01), Vorwerk

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