Handling: hand and hoist-line implements – Grapple – Well type
Patent
1984-04-05
1986-03-04
Marbet, James B.
Handling: hand and hoist-line implements
Grapple
Well type
294 8211, 294 8224, B66C 2360
Patent
active
045737266
ABSTRACT:
A hoisting apparatus for submersible pump units (4), which is provided particularly for use in deep shafts, comprises a flexible traction element, a drive means for hoisting and lowering the traction element, and a coupling part (1) arranged at the lower end of the traction element, which is automatically connectable to and releasable from a corresponding connecting element (26) provided on the submersible pump unit. In order to ensure that the coupling part (1) can be attached easily and automatically to the connecting element (26) provided on the submersible pump unit and can be released again therefrom with equal ease, and particularly can be guided accurately down to the connecting element without major outlay, the coupling part (1) arranged on the traction element exhibits an eye (2) which encloses with play the electric cable (5) passed down to the electric motor (3) of the submersible pump unit (4), while the connecting element (26) provided on the submersible pump unit is arranged in immediate proximity to the electric cable (5).
REFERENCES:
patent: 3741525 (1973-06-01), Smedley
patent: 4258888 (1981-03-01), Sawn
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