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The AAPG/Datapages Combined Publications Database

Journal of Sedimentary Research (SEPM)

Abstract


Journal of Sedimentary Petrology
Vol. 36 (1966)No. 4. (December), Pages 973-976

A Tubular Spring Valve Used as a Tight and Thin-walled Core-retainer

Andre M. Rosfelder

ABSTRACT

A thin-walled and tight core-retainer, which can be used also as a quick-acting valve for various purposes, was built in different models and successfully tested at sea. It is based on a cloth valve originally adapted to corers by H. Delauze, but twisted in this device, by an encasing torsion spring released by a latch. This latch is directly actuated by the sediment during the pull-up.


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