Viv Suppression, Inc.

Sunstone Corporation

Sunstone Technologies, LLC

Kurt D Vandervort

William James Hughes

Rodney H Masters

Kenneth D Young

Murl Ray Richardson

Cecil M Brandon, Jr

Stuart John Harbert

Bill Griffith

Thomas L Pettigrew

The present invention discloses a compliant banding system for use in a marine environment comprising a flexible compliant member and an abaxial relatively rigid strap, both constructed to extend circumferentially around an underlying structure such as a strake or fairing collar. The strap maintains a fixed circumference while the compliant member flexes intermediate the strap and an underlying.

Compliant banding system

Force balancing adjusts hydraulic fluid pressure in an upper piston area of a Rotating Pressure Control Device (RPCD) that has an inner housing rotatably engaged within an outer housing by an upper bearing and a lower bearing. The hydraulic fluid pressure is adjusted to balance net force in a upper piston area and a lower piston area. The fluid pressure adjustment creates a force differential that balances the total load transmitted through the upper bearing and the lower bearing and thereby extends the life of the sealing element and bearings. Additionally, a wear indicator signals the end of the useful life of the drill pipe sealing element.

Force balanced rotating pressure control device

Growing community of inventors

Cypress, TX, United States of America

Kurt D Vandervort