LARGE BORE AUTO-FILL FLOAT EQUIPMENT
An auto-fill type float collar assembly is provided. The float collar assembly of the present invention has at least one curved flapper-style valve, preferably constructed of composite, non-metallic material. Each flapper of the present invention has a substantially 90° range of motion, and is close...
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Main Authors | , , , |
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Format | Patent |
Language | English |
Published |
21.05.2015
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Subjects | |
Online Access | Get full text |
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