Vacuum cup venturi assembly and blow off silencer

Details Vacuum cup venturi assembly and blow off silencer Vacuum cup venturi assembly and blow off silencer

1982-08-06

1984-06-12

Cherry, Johnny D.

Handling: hand and hoist-line implements

Utilizing fluid pressure

Venturi effect

417185, B66C 102

Patent

active

044537557

ABSTRACT:
In a vacuum cup assembly including a body having a vacuum chamber and a vacuum cup communicating with the vacuum chamber for supporting a workpiece, a venturi jet connected to a source of pressurized air and the vacuum chamber and an air outlet, there is provided an air blow-off silencer having an inlet mounted upon the air outlet, an intermediate apertured web and a silencer chamber containing an air silencer assembly. A poppet valve is guidably positioned within the web having an advanced rest position and retractable relative to a pressure chamber in the web to an air blocking position. Application of pressurized air to the pressure chamber moves the poppet valve to close the air outlet of the vacuum cup assembly, the pressurized air to the venturi assembly by-passing to the vacuum chamber to blow off the workpiece.

REFERENCES:
patent: 3052479 (1962-09-01), La Trell
patent: 3181563 (1965-05-01), Giffen
patent: 3349927 (1967-10-01), Blatt
patent: 3675733 (1972-07-01), Blatt
patent: 4073602 (1978-02-01), Cagle

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