Retrievable guide post system

Details Retrievable guide post system Retrievable guide post system

1989-01-09

1990-05-22

Corbin, David H.

Hydraulic and earth engineering

Marine structure or fabrication thereof

166349, E02D 574, E21B 4301

Patent

active

049272950

ABSTRACT:
A retrievable guide post for installation in a subsea structure such as a template or a permanent guide base receptacle and for retrieval therefrom including a tubular body, a sleeve slidable axially on the lower exterior of the tubular body, a groove in the exterior of the sleeve a short distance below its upper end, a groove in the exterior of the tubular body a short distance above the uppermost position of the upper end of the sleeve, a split latching ring supported on the exterior of the tubular member immediately below the lower end of the sleeve in its upper position, a support ring positioned below the split latching ring to support the latching ring at its desired latching level, a pin and slot connection between the support ring to the tubular body to allow relative limited axial motion of the support ring on the tubular body and a shear pin releasably securing the support ring to the tubular body.

REFERENCES:
patent: 3967460 (1976-07-01), Cassity
patent: 4400112 (1983-08-01), Castel et al.
patent: 4441742 (1984-04-01), Owens
patent: 4443130 (1984-04-01), Hall
patent: 4491439 (1985-01-01), Watkins
patent: 4498814 (1985-02-01), Brake
patent: 4523878 (1985-06-01), Richart et al.

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