Containers for goods

Details Containers for goods Containers for goods

1979-03-13

1981-01-06

Barefoot, Galen L.

Freight accommodation on freight carrier

Load bearer accommodation

Retainer

2441181, 410 97, 410119, 410128, 417 29, 200 83C, 200 83W, 150 05, B64D 900

Patent

active

042433495

ABSTRACT:
In a container of the kind having a rigid impermeable base and a flexible impermeable cover which is sealed to the base, and in which air is evacuated from the region between the cover and the base so that the cover is drawn down onto goods on the base, there is provided a bellows-type vacuum sensor which senses the air pressure in the container and which operates switch contacts controlling a pump. When the container is used in an aircraft, where the ambient pressure inside the aircraft falls considerably when the aircraft is at high altitudes, the pump is actuated to ensure that the pressure in the container is maintained below the ambient pressure in the aircraft. An excess pressure difference, which might overload shock absorbing mounts for goods on the container base, is prevented by the bellows opening relief air ports.

REFERENCES:
patent: 2472623 (1949-06-01), Schulze
patent: 2653629 (1953-09-01), Hoffinvoth
patent: 2697764 (1954-12-01), Burlingham
patent: 2764950 (1956-10-01), Finnell
patent: 2847032 (1958-08-01), Fleming
patent: 2960942 (1960-11-01), Pier et al.
patent: 3000418 (1961-09-01), Bitting
patent: 3098455 (1963-07-01), McElroy et al.
patent: 3850214 (1974-11-01), Hickey
patent: 3957395 (1976-05-01), Ensign

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