Inflatable dock seal

Details Inflatable dock seal Inflatable dock seal

1981-07-13

1983-06-28

Murtagh, John E.

Static structures (e.g., buildings)

Shaped or strengthened by fluid pressure

Fluid pressure is subatmospheric

52173DS, E06B 722

Patent

active

043898211

ABSTRACT:
An inflatable dock seal for closing the area defined by an opening such as a loading dock with respect to a truck or trailer includes a pair of vertical inflatable multiple sectioned members movable outwardly and towards one another in a curved configuration that will engage the sides of a truck or trailer and a upper generally horizontal inflatable member movable both outwardly and downwardly against the top of a truck or trailer. There are straps resiliently retracting the inflatable members when not inflated so as to provide a small relatively thin shape adjacent the dock opening.

REFERENCES:
patent: 1222907 (1917-04-01), Truemper
patent: 3322132 (1967-05-01), Rieder
patent: 3391502 (1968-07-01), O'Neal
patent: 3391503 (1968-07-01), O'Neal
patent: 3461627 (1969-08-01), Conger
patent: 3714745 (1973-02-01), O'Neal
patent: 4044510 (1977-08-01), O'Neal

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