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Title: Composite drill pipe and method for forming same

Abstract

Metal inner and outer fittings configured, the inner fitting configured proximally with an external flange and projecting distally to form a cylindrical barrel and stepped down-in-diameter to form an abutment shoulder and then projecting further distally to form a radially inwardly angled and distally extending tapered inner sleeve. An outer sleeve defining a torque tube is configured with a cylindrical collar to fit over the barrel and is formed to be stepped up in diameter in alignment with the first abutment shoulder to then project distally forming a radially outwardly tapered and distally extending bonding surface to cooperate with the inner sleeve to cooperate with the inner sleeve in forming a annular diverging bonding cavity to receive the extremity of a composite pipe to abut against the abutment shoulders and to be bonded to the respective bonding surfaces by a bond.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
Advanced Composite Products & Technology, Inc., Huntington Beach, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1129209
Patent Number(s):
8696034
Application Number:
13/551,446
Assignee:
Advanced Composite Products & Technology, Inc. (Huntington Beach, CA)
Patent Classifications (CPCs):
E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING
F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16L - PIPES
DOE Contract Number:  
FC26-99FT40262
Resource Type:
Patent
Resource Relation:
Patent File Date: 2012 Jul 17
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Leslie, James C, Leslie, II, James C, Heard, James, Truong, Liem, and Josephson, Marvin. Composite drill pipe and method for forming same. United States: N. p., 2014. Web.
Leslie, James C, Leslie, II, James C, Heard, James, Truong, Liem, & Josephson, Marvin. Composite drill pipe and method for forming same. United States.
Leslie, James C, Leslie, II, James C, Heard, James, Truong, Liem, and Josephson, Marvin. Tue . "Composite drill pipe and method for forming same". United States. https://www.osti.gov/servlets/purl/1129209.
@article{osti_1129209,
title = {Composite drill pipe and method for forming same},
author = {Leslie, James C and Leslie, II, James C and Heard, James and Truong, Liem and Josephson, Marvin},
abstractNote = {Metal inner and outer fittings configured, the inner fitting configured proximally with an external flange and projecting distally to form a cylindrical barrel and stepped down-in-diameter to form an abutment shoulder and then projecting further distally to form a radially inwardly angled and distally extending tapered inner sleeve. An outer sleeve defining a torque tube is configured with a cylindrical collar to fit over the barrel and is formed to be stepped up in diameter in alignment with the first abutment shoulder to then project distally forming a radially outwardly tapered and distally extending bonding surface to cooperate with the inner sleeve to cooperate with the inner sleeve in forming a annular diverging bonding cavity to receive the extremity of a composite pipe to abut against the abutment shoulders and to be bonded to the respective bonding surfaces by a bond.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {4}
}

Works referenced in this record:

Fibre reinforced plastics power transmission shaft
patent, August 1986


Composite drill pipe
patent, July 1994


Composite cylinder termination formed using snap ring
patent, September 1998


High pressure flexible hose structure and method of manufacture
patent, November 2001