Vaccum lifting apparatus etc.
OwnerStewart Bennisoninventor
Life of this patent
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Abstract
A vacuum lifting and handling apparatus (1) for product containers, comprises a lift tube (2) adapted to be suspended at its upper end (3) from an elevated location, and provided with a suction foot (14), the tube (2) being extendible and retractable under the influence of an internal vacuum, with a control unit (13) carried by a lower end (16) of the vacuum tube (2) to vary the internal vacuum as required during a container lifting and handling sequence by introduction of ambient air into the lift tube, and a replaceable air filter (17) is housed within the lower end (16) of the lift tube (2).
Claims9
A vacuum lifting and handling apparatus for product containers, said apparatus comprising a lift tube adapted to be suspended at its upper end from an elevated location, and provided at its lower end with a suction foot, said lift tube being extendible and retractable under the influence of an internal vacuum, with a control unit carried by a lower end of said lift tube to vary the internal vacuum as required during a container lifting and handling sequence by introduction of ambient air into said lift tube, wherein a replaceable air filter is housed within said lower end of said lift tube.
Dependencies are inferred from the claim text.