Emergency release device for drilling

Ships – Implements – Underwater cutting

Patent

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Details

30 92, 836391, B63B 2150

Patent

active

052091759

ABSTRACT:
A system for severing anchor cable mooring lines and oil well drill pipes is disclosed in which a primary hydraulic system containing a first fluid under pressure is utilized to actuate cutters and a secondary hydraulic system containing a second fluid under pressure is used to control valves which regulate the application of the first fluid to the cutters. The system is designed to operate independently of local power sources during an emergency.

REFERENCES:
patent: 2384130 (1945-09-01), Pell et al.
patent: 2578582 (1951-12-01), Northcutt
patent: 3150551 (1964-09-01), Spengler et al.
patent: 3561526 (1971-02-01), Williams et al.
patent: 3971328 (1976-07-01), Edling et al.

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