Riser tensioning wave and tide compensating system for a floatin

Details Riser tensioning wave and tide compensating system for a floatin Riser tensioning wave and tide compensating system for a floatin

1978-01-11

1980-09-16

Basinger, Sherman D.

Ships

Floating platform

175 5, 267126, B63B 3544

Patent

active

042223415

ABSTRACT:
A riser tensioner cylinder is provided with a hollow piston rod which forms a second cylinder in which a ram is reciprocated. The free end of the ram is connected to a link which in turn is connected to the end of the riser for providing tension on the riser. The ram reciprocates in the second cylinder under constant pressure to compensate for wave action on the floating platform and the second cylinder is automatically positioned within the first cylinder for adjustment for tide, vessel offset or other infrequent but variable factors.

REFERENCES:
patent: 3426651 (1969-02-01), Arendarski
patent: 3496898 (1970-02-01), Morgan
patent: 3721293 (1973-03-01), Ahlstone et al.
patent: 3793835 (1974-02-01), Larralde

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