Handling: hand and hoist-line implements – Utilizing fluid pressure – Venturi effect
Patent
1995-03-20
1997-06-10
Cherry, Johnny D.
Handling: hand and hoist-line implements
Utilizing fluid pressure
Venturi effect
2851371, 285305, 294 641, B25J 1506, B66C 102
Patent
active
056368879
ABSTRACT:
An apparatus includes a lifting device having a gas-attachment end and a lifting end, two pins each attachable to the gas-attachment end of the lifting device, and a gas-supply coupler for connecting a gas supply to the lifting device. Each pin has a longitudinal bore extending therethrough and an extending portion which extends beyond the gas-attachment end of the lifting device when the pins are attached thereto. One of the pins has an exterior annular notch on the extending portion. The gas-supply coupler is connectable to the two pins and has a locking element which releasably locks into the annular notch on the pin having the annular notch. The lifting device, the two pins, and the gas-supply coupler together have two passages leading from the gas-supply coupler, through the longitudinal bores of the two pins and to the lifting end of the lifting device. One passage is designed such that, when gas flows therethrough toward the lifting end, suction is created at the lifting end. The other passage is designed such that, when gas flows therethrough toward the lifting end, gas is expelled at the lifting end.
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Martin Richard W.
Petropoulos Steven N.
Sands Edward J.
Cherry Johnny D.
Chrysler Corporation
Dobrowitsky Margaret A.
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