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COMPOSITE DRILL PIPE AND METHOD FOR FORMING SAME

United States Patent Application

20180066774
A1
View the Complete Application at the US Patent & Trademark Office
A composite torque pipe to metal fitting joint including concentric inner and outer shells formed with respective smooth annular surfaces projecting distally to form an annulus of a predetermined configuration for receipt of a composite connector ring of the predetermined configuration.
Leslie, James C. (Fountain Valley, CA), Leslie, II, James C. (Mission Viejo, CA), Heard, James (Huntington Beach, CA), Truong, Liem V. (Anaheim, CA), Josephson, Marvin (Huntington Beach, CA)
15/ 805,019
November 6, 2017
STATEMENT OF GOVERNMENT INTEREST [0002] This invention was partly funded by the Government of the United States of America under Cooperative Agreement No. DE-FC26-99FT40262 awarded by the U.S. Department of Energy and the Government of the United States of America has certain rights in the invention.