Patents by Inventor Fergal Michael O'Shea

Fergal Michael O'Shea 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).

  • Bearing arrangement for a pump
    Patent number: 8342156
    Abstract: A fluid pump is disclosed. The fluid pump may comprise a housing, a tapered bearing, a drive shaft, a first fluid chamber, and a second fluid chamber. The housing defines a bore. The tapered bearing is received within the bore of the housing. The drive shaft is received within the tapered bearing. The first fluid chamber is defined between the housing and the drive shaft on a first side of the tapered bearing. The second fluid chamber is defined between the housing and the drive shaft on a second side of the tapered bearing. The second fluid chamber is separated from the first fluid chamber by the tapered bearing. The housing includes a fluid passage fluidly coupling the first fluid chamber and the second fluid chamber.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: January 1, 2013
    Inventors: Fergal Michael O'Shea, Daniel R. Ibrahim, Joseph Shane Burkitt
  • BEARING ARRANGEMENT FOR A PUMP
    Publication number: 20110048384
    Abstract: A fluid pump is disclosed. The fluid pump may comprise a housing, a tapered bearing, a drive shaft, a first fluid chamber, and a second fluid chamber. The housing defines a bore. The tapered bearing is received within the bore of the housing. The drive shaft is received within the tapered bearing. The first fluid chamber is defined between the housing and the drive shaft on a first side of the tapered bearing. The second fluid chamber is defined between the housing and the drive shaft on a second side of the tapered bearing. The second fluid chamber is separated from the first fluid chamber by the tapered bearing. The housing includes a fluid passage fluidly coupling the first fluid chamber and the second fluid chamber.
    Type: Application
    Filed: August 27, 2009
    Publication date: March 3, 2011
    Applicant: Caterpillar Inc.
    Inventors: Fergal Michael O'Shea, Daniel R. Ibrahim, Joseph Shane Burkitt
  • Multi-stage relief valve having different opening pressures
    Publication number: 20080022974
    Abstract: A pressure relief valve is provided for a common rail fuel system. The pressure relief valve has a housing with an inlet, an outlet, and a central bore fluidly connecting the inlet and the outlet. The pressure relief valve also has a single valve seat and a first valve element movable to selectively block a flow of fluid through the single valve seat. The pressure relief valve further has a second valve element disposed within the central bore of the housing and movable to selectively block a flow of fluid through the central bore.
    Type: Application
    Filed: July 28, 2006
    Publication date: January 31, 2008
    Inventors: Alan R. Stockner, Mandi Rae Ferleyko, Benjamin Ray Tower, Bryan D. Moore, Koti Ratnam Padarthy, Fergal Michael O'Shea, Todd Alan Johnson, James Dl