Walter D Murray, 6916782 Us Highway 20Ns, Pioneer, OH 43554

6684714, Feb 3, 2004

May 14, 2002

10/143811

Richard Mills - LaPorte IN
Walter Murray - Pioneer OH
Daniel J. Popoff - Canton MI

SPX Corporation - Charlotte NC

G01F 100

73861, 141 98

Method and apparatus provided to accurately test fluid flow through cooling systems including pressurizing a fluid to create a fluid flow into the cooling system, measuring a fluid flow rate, and determining when the fluid flow rate is acceptable.

6866121, Mar 15, 2005

May 6, 2002

10/138518

Richard Mills - LaPorte IN, US
Walter Murray - Pioneer OH, US
Daniel J. Popoff - Canton MI, US

SPX Corporation - Charlotte NC

F16C003/14

184 15, 184 6

Method and apparatus provided to accurately test flow and flush cooling systems.

6986283, Jan 17, 2006

Jun 25, 2002

10/178526

Richard Mills - LaPorte IN, US
Walter Murray - Pioneer OH, US
William Brown - Bryan OH, US
John E. Flaherty - Canton MI, US

SPX Corporation - Charlotte NC

G01F 7/00

73196

Method and apparatus are provided to exchange fluid in a system such as a transmission system. Supply and return flow rates are measured and can be adjusted based on a difference between the flow rates.

7082814, Aug 1, 2006

Dec 16, 2003

10/735617

Tim Gorski - Owatonna MN, US
Bill Brown - Bryan OH, US
Walter Murray - Pioneer OH, US
Larry Lageson - Owatonna MN, US
Scott Opsahl - Lakeville MN, US
Gary Murray - Montpelier OH, US

SPX Corporation - Charlotte NC

G01M 15/00

731181

A method and apparatus for testing fluid flow and flushing a transmission cooler. In a preferred embodiment of the invention, the apparatus is designed to test fluid flow through a transmission cooler and/or clean out debris within a transmission cooler by using heated transmission fluid and air-inject technology.

2006011, Jun 8, 2006

Nov 30, 2004

10/998827

William Brown - Owatonna MN, US
Walter Murray - Pioneer OH, US

F16N 33/00

184001500

An automated hose clearing after refrigerant charge method and appropriate apparatus is provided. The method includes, determining if a pressure differential between a high and low pressure hose exceeds a predetermined threshold and temporarily providing fluid communication between the interiors of the high and low-pressure hoses.

5551247, Sep 3, 1996

Sep 30, 1994

8/315836

Kenneth W. Manz - Paulding OH
Allan F. Heisler - Montpelier OH
Gary P. Murray - Montpelier OH
Walter D. Murray - Pioneer OH
Daniel L. Olds - Bryan OH

SPX Corporation - Muskegon MI

F25B 4500

62149

A refrigerant handling system that is particularly adapted for flammable or potentially flammable refrigerants that includes a compressor having an inlet for connection to a source of refrigerant, and a condenser connected to the outlet of the compressor for at least partially condensing refrigerant passing therethrough. An air motor is connected to a source of air under pressure for operating the compressor. The air from the motor exhaust is directed to the condenser for cooling the condenser and thereby enhancing extraction of heat from refrigerant passing through the condenser.

5906106, May 25, 1999

Oct 24, 1997

8/957185

William C. Brown - Bryan OH
Walter D. Murray - Pioneer OH
Charles E. Dull - Fort Wayne IN

SPX Corporation Robinair Division - Montpelier OH

F25B 4304

62195

A refrigerant air analyzer and purge system for detecting and purging air within a refrigerant system or supply. The analyzer includes a vented test chamber, means for controlling a flow rate of refrigerant and an oxygen sensor. The means for controlling receives refrigerant from the refrigerant supply and provides the refrigerant to the test chamber through an inlet of the test chamber. The means for controlling limits the pressure and flow rate of refrigerant provided to the test chamber. The oxygen sensor is coupled to the test chamber and produces a signal which is a function of the oxygen level within the test chamber. The means for controlling is connected to the oxygen sensor for receiving the oxygen signal and providing a display.

6134896, Oct 24, 2000

Mar 19, 1999

9/272789

William C. Brown - Bryan OH
Walter D. Murray - Pioneer OH
Gary P. Murray - Montpelier OH
Mark D. Pfleeger - Bryan OH

SPX Corporation - Muskegon MI

F25B 4500

62149

A refrigerant servicing system includes a main supply tank of refrigerant and an auxiliary tank which is coupled to the main tank by a valve which is selectively controlled by a circuit also coupled to weight and pressure sensors to assure the main tank has a level of refrigerant adequate for providing a continuous supply of refrigerant during servicing.