Patents by Inventor Brian David Sowards

Brian David Sowards 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).

  • Patent number: 7234926
    Abstract: A compressor assembly comprising first and second housing structures connected to one another. A compression chamber is formed integrally within the first and second housing structures. A separation chamber is formed integrally within the first and second housing structures. An internal fluid passage extends between the compression chamber and the separation chamber.
    Type: Grant
    Filed: October 15, 2004
    Date of Patent: June 26, 2007
    Assignee: Ingersoll-Rand Company
    Inventor: Brian David Sowards
  • Patent number: 6520758
    Abstract: An air compressor assembly of the rotary screw type. The air compressor assembly comprises a housing having an inlet end and a discharge end. An internal working chamber extends within the housing and terminates in a discharge end face at the discharge end of the housing. At least one rotor is mounted for rotation and axial movement within the working chamber. The rotor has a discharge end surface having a step defined thereon. A thrust piston extends from the rotor and is positioned within a thrust piston chamber. A pressure source is associated with the thrust piston chamber and is controllable between a high pressure condition and a reduced pressure condition to control the position of the rotor relative to the discharge end face. A method of mounting a rotor with a desired end clearance is also provided.
    Type: Grant
    Filed: October 24, 2001
    Date of Patent: February 18, 2003
    Assignee: Ingersoll-Rand Company
    Inventor: Brian David Sowards
  • Patent number: 3953146
    Abstract: A washing machine including a pump which selectively passes washing liquid to a filter or to a drain, the pump having a vaned impeller driven by an impeller shaft, the impeller structure being provided with a collar in circumscribing relation to the shaft, and a pump housing having a tubular portion in closely spaced relation to the periphery of the collar, the tubular portion having a serrated portion cooperating with the collar to shred lint delivered to the space between the collar and the serrated portion.
    Type: Grant
    Filed: August 15, 1974
    Date of Patent: April 27, 1976
    Assignee: Whirlpool Corporation
    Inventor: Brian David Sowards