Vacuum pickup head

Details Vacuum pickup head Vacuum pickup head

1976-09-13

1978-09-19

Marbert, James B.

Handling: hand and hoist-line implements

Utilizing fluid pressure

Venturi effect

B66C 102

Patent

active

041149394

ABSTRACT:
A vacuum pickup head used with a stacker crane or similar structure wherein a plurality of the heads are suitably arranged on a movable support. The vacuum pickup head has a casing with an interior vacuum chamber and a depending container-engaging sealing element to seal the space between the casing and a container. A bottom wall of the casing has an annular air passage to provide a large airflow connection of said space with the vacuum chamber. A linearly-movable valve plate is positioned beneath the bottom wall for movement relative to the bottom wall to open and close said annular passage and fluid-powered motor means are positioned within the casing for moving the valve plate.

REFERENCES:
patent: 2783018 (1957-02-01), Lytle
patent: 4006929 (1977-02-01), Barker
Western Electric, Technical Digest No. 22, Apr., 1971.

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