Robert D Barree
Engineers in Littleton, CO
License number
Colorado 23991
Issued Date
Feb 5, 1986
Renew Date
Nov 1, 2015
Expiration Date
Oct 31, 2017
Type
Professional Engineer
Address
Address
5400 W Prentice Crk W PRENTICE CR, Littleton, CO 80123
Professional information
High Speed, High Temperature Three-Way Valve For Switching High Pressure Fluids Under Low Pressure Control
US Patent:
4726398, Feb 23, 1988
Filed:
Dec 16, 1986
Appl. No.:
6/942566
Inventors:
Robert D. Barree - Littleton CO
Assignee:
Marathon Oil Company - Findlay OH
International Classification:
F16K 11044
US Classification:
1376255
Abstract:
Disclosed is a low internal volumn three-way valve for high speed switching of high pressure, high temperature fluids without volume change. Such valves have particular application with positive displacement pumps for precision laboratory measurements wherein corrosive fluids are used.
Automated Gas-Liquid Relative Permeameter
US Patent:
4679421, Jul 14, 1987
Filed:
Jul 10, 1986
Appl. No.:
6/884252
Inventors:
Robert D. Barree - Littleton CO
Assignee:
Marathon Oil Company - Findlay OH
International Classification:
G01N 1508
US Classification:
73 38
Abstract:
An automated system for instantaneously measuring the production rates of gas and liquid produced from a sample core for automatically determining gas-liquid relative permeability. An apparatus is provided for collecting the produced fluids wherein the weight of the produced liquid is monitored instantaneously by a sensitive electronic load cell and wherein the volume of the gas produced is instantaneously monitored.
High Pressure Coupling
US Patent:
4776618, Oct 11, 1988
Filed:
Aug 14, 1987
Appl. No.:
7/085911
Inventors:
Robert D. Barree - Littleton CO
Assignee:
Marathon Oil Company - Findlay OH
International Classification:
F16L 2104
US Classification:
285341
Abstract:
A high-pressure coupling for small-diameter pipe is obtained with standard male and female pipe connectors, three ferrules, an O-ring and a flat metallic washer disposed around the pipe and designed such that when the connectors are hand tightened, the coupling compresses the ferrules, O-ring and flat washer to obtain a coupling that will withstand pressures up to 10,000 psi.
High Speed, High Temperature Three-Way Valve For Switching High Pressure Fluids Under Low Pressure Control
US Patent:
RE33246, Jul 3, 1990
Filed:
Sep 6, 1989
Appl. No.:
7/408159
Inventors:
Robert D. Barree - Littleton CO
Assignee:
Marathon Oil Company - Findlay OH
International Classification:
F16K 11044
US Classification:
1376255
Abstract:
Disclosed is a low internal volumn three-way valve for high speed switching of high pressure, high temperature fluids without volume change. Such valves have particular application with positive displacement pumps for precision laboratory measurements wherein corrosive fluids are used.
Back Pressure Regulator
US Patent:
4846215, Jul 11, 1989
Filed:
Jun 7, 1988
Appl. No.:
7/203670
Inventors:
Robert D. Barree - Littleton CO
Assignee:
Marathon Oil Company - Findlay OH
International Classification:
F16K 717
US Classification:
137510
Abstract:
A back pressure regulator of the diaphragm type. A metal diaphragm is held in a cavity formed by opposed faces of top and bottom portions of the unit. The opposed faces are tapered so that the depth of the cavity is greatest in the central portion of the diaphragm, allowing for movement of the diaphragm. A fluid outlet leading into the cavity at the underside of the diaphragm is sealed by contact of the underside of the diaphragm with an O-ring which surrounds the fluid outlet and extends into the cavity. When the pressure of the fluid in the cavity above the diaphragm is greater than the pressure of the fluid beneath the diaphragm the diaphragm is maintained in contact with the O-ring to prevent flow through the outlet.