Method for lifting an immersed device and returning it into posi

Details Method for lifting an immersed device and returning it into posi Method for lifting an immersed device and returning it into posi

1979-03-06

1981-07-14

Corbin, David H.

Hydraulic and earth engineering

Diving

Remote control

114326, 166339, 166362, B63C 1100

Patent

active

042783623

ABSTRACT:
The present invention relates to a method for lifting an immersed device and returning it into position, and to a device for carrying out the method, wherein the device to be lifted up is provided with a locating buoy and a wound up guide line whose ends are connected to the buoy and to a locking member connected to the base on which the immersed device is mounted; the buoy is released, taking with it the guide line, along which the device is raised. The device to be replaced in position is provided with a new buoy, guide line and locking member and is lowered along the first mentioned guide line, which is severed after the device to be replaced in position has returned to the base. The method is applicable for example to lifting and replacing a remote-control pod for an underwater well head.

REFERENCES:
patent: 3293867 (1966-12-01), Dean
patent: 3302709 (1967-02-01), Postlewaite
patent: 3308881 (1967-03-01), Chan et al.
patent: 3709291 (1973-01-01), Hanes et al.
patent: 3874013 (1975-04-01), Hudson
patent: 3967460 (1976-07-01), Cassity

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