Phiroze Bandukwalla: Centrifugal compressor. Carrier Corporation, Donald F Daley, David J Zobkiw, March 29, 1983: US04378194 (55 worldwide citation)

The efficiency of a centrifugal compressor is optomized over a wide range of flow rates by providing a diffuser which is a combination of fixed vanes and a movable wall member and which throttles the diffuser passage in accordance with compressor load.

Kenneth P Gray: Refrigeration purging system. Carrier Corporation, J Raymond Curtin, Donald F Daley, December 8, 1981: US04304102 (48 worldwide citation)

A refrigeration purging system for the removal of non-condensible gases such as air and condensible contaminants such as water is disclosed. A portion of the refrigerant in the refrigeration system is placed in a first purge chamber which condenses the refrigerant and condensible contaminants such a ...

Carl H Geary Jr: Gas lift bearing and oil seal. Elliott Turbomachinery Co, Donald F Daley, David J Zobkiw, September 27, 1983: US04406466 (34 worldwide citation)

A plurality of circumferentially spaced pockets are formed in the face of a stationary carbon ring. A rotating seal ring coacts with the pockets in the carbon ring to define a gas lift bearing to thereby reduce the pressure differential and leakage across the carbon ring. Alternatively the spaced po ...

Lloyd F Copenhaver: Self-checking safety switch control circuit. Carrier Corporation, Donald F Daley, David L Adour, September 13, 1983: US04403942 (28 worldwide citation)

The present invention relates to a self-checking safety switch control circuit for a power combustion system. The circuit comprises a safety switch, a combustion blower relay, a thermal pilot switch, and a fuel supply system. The safety switch operates to detect flow through the combustion system. T ...

James R Hile: Method and apparatus for controlling an air conditioning unit with multi-speed fan and economizer. Carrier Corporation, Donald F Daley, Robert P Hayter, June 28, 1983: US04389853 (27 worldwide citation)

An apparatus and method for operating an air conditioning unit incorporating both an economizer and a two speed fan are described. When the economizer is in operation the fan is typically operated at high speed regardless of refrigeration circuit operation to circulate sufficient outdoor air to the ...

Howard H Fraser Jr: Separation of lubricating oil from refrigerant gas in a reciprocating compressor. Carrier Corporation, Donald F Daley, David J Zobkiw, August 2, 1983: US04396361 (27 worldwide citation)

A hermetically sealed reciprocating motor compressor unit including a sealed shell. Discharge gas from the compressor is passed through the motor via suitable flow passages. The top of the motor and the interior surface of the shell define a chamber therebetween. The rotor functions as a centrifuge ...

Thomas M Zinsmeyer: Method and apparatus for controlling the operation of a centrifugal compressor in a refrigeration system. Carrier Corporation, Donald F Daley, David L Adour, September 20, 1983: US04404812 (21 worldwide citation)

A method and apparatus to prevent oil pump cavitation in a hermetically sealed vapor compression refrigeration system are disclosed. A hermetically sealed housing containing the refrigeration compressor transmission and oil supply reservoir is connected to the suction side of the compressor to equal ...

William E Wright Jr: Control system for pulsed DC arc welding power supply. Carrier Corporation, Donald F Daley, David L Adour, May 17, 1983: US04384188 (19 worldwide citation)

A control system for a pulsed DC arc welding system power supply is disclosed. The control system operates to automatically adjust the pulse width of the current pulses supplied at the arc gap by the power supply to control the power flow to the work pieces at the arc gap. An example of such a contr ...

Gordon K Anderson: Permanent magnet rotor. Carrier Corporation, Donald F Daley, David J Zobkiw, July 12, 1983: US04393320 (19 worldwide citation)

A permanent magnet rotor comprising a housing defining a central rotor axis, an inner ring secured within the housing and annularly extending around the rotor axis, a plurality of permanent magnets supported within the housing and annularly spaced around the inner ring, and an outer ring secured wit ...

Paul L Goranson: Vehicle body loading and unloading mechanism. Carrier Corporation, J Raymond Curtin, Donald F Daley, John S Sensny, January 9, 1979: US04133439 (19 worldwide citation)

A vehicle mounted apparatus for loading and unloading containers onto and off of the vehicle is disclosed. The apparatus comprises a tilting frame on the body of the vehicle, a hydraulic cylinder mounted on the tilting frame for longitudinal movement along the tilting frame and a cable extending fro ...