Patents by Inventor Steven J. Holden

Steven J. Holden has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Spring life improvement
    Patent number: 5719454
    Abstract: A backing ring has a reduced diameter portion surrounded by a spring which engages the backing ring and a stop to normally keep the stop and backing ring separated by a small distance while maintaining a desired bias on the bearing system which is engaged by the backing ring. Movement of the bearing is limited by the small distance which also limits flexure and therefore improves the fatigue life of the spring.
    Type: Grant
    Filed: May 6, 1996
    Date of Patent: February 17, 1998
    Assignee: Carrier Corporation
    Inventors: Mickey L. Halsey, Steven J. Holden, Stephen L. Lessie
  • Back pressure control for improved system operative efficiency
    Patent number: 5603227
    Abstract: A normally closed valve is located downstream of the oil separator to insure that sufficient oil pressure builds up to lubricate the compressor. The valve is responsive to the differential pressure between discharge and economizer such that throttling takes place over a limited portion of the operating envelope.
    Type: Grant
    Filed: November 13, 1995
    Date of Patent: February 18, 1997
    Assignee: Carrier Corporation
    Inventors: Steven J. Holden, John A. Schwoerer
  • Makeup oil system for first stage oil separation in booster system
    Patent number: 5522233
    Abstract: In a system having low and high stage compressors with an oil separator downstream of each stage there can be a tendency for oil from the first stage to collect in the second stage. So, responsive to a low level of oil in the first stage oil system, oil is supplied from the second stage oil system to the first stage oil system.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: June 4, 1996
    Assignee: Carrier Corporation
    Inventors: Terry Nares, Steven J. Holden
  • Oil inlet feed
    Patent number: 5295815
    Abstract: In a compressor where an oil pump is driven by a crankshaft through a drive tang with oil passing through the drive tang. The bolts holding the drive tang in place tend to agitate the oil and create foam. To prevent foam from being drawn into the oil pump, the agitation is isolated by a sub-chamber defined in part by a spring retainer while oil is supplied via a tube extending through the sub-chamber.
    Type: Grant
    Filed: July 6, 1993
    Date of Patent: March 22, 1994
    Assignee: Carrier Corporation
    Inventors: Bruce A. Fraser, Timothy V. Nelson, Steven J. Holden