Patents by Inventor Steven Buchanan

Steven Buchanan 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).

  • Publication number: 20240090716
    Abstract: A vacuum cleaner is described having a suction unit, a first cleaning tool, and a second cleaning tool. The first cleaning tool is attachable to the suction unit and includes a first dirt separator. The second cleaning tool is likewise attachable to the suction unit and includes a second dirt separator. The first dirt separator and the second dirt separator employ different mechanisms for separating dirt from an airflow.
    Type: Application
    Filed: December 1, 2021
    Publication date: March 21, 2024
    Applicant: Dyson Technology Limited
    Inventors: Samuel Steven COLE, Anthony Andrew Buchanan HARKER, Toke MALM
  • Publication number: 20060021443
    Abstract: A gauge for indicating a measured variable such as pressure. The gauge includes a motion detection device including a drive magnet that is adapted to be moveable in response to changes in the variable. The pointer rotation device includes a pivot member, a power magnet coupled to the pivot member, and one or more director members located adjacent the power magnet. Each director member includes a generally helical flange. A pointer is coupled to the pointer rotation device. The director members and the power magnet form a magnetic field adapted to magnetically couple the pointer rotation device to the drive magnet. The pointer rotation device is adapted to rotate about a rotational axis. Movement of the drive magnet in response to changes in the variable rotates the pointer rotation device and the pointer about the rotational axis such that the pointer indicates the measured variable.
    Type: Application
    Filed: July 27, 2005
    Publication date: February 2, 2006
    Inventor: Steven Buchanan
  • Publication number: 20050089419
    Abstract: The present invention provides a submersible motor and pump system for use in a wellbore. More specifically, the present invention provides a submersible system having a sealed motor and a magnetic coupling to transmit torque from the sealed motor to the pump.
    Type: Application
    Filed: January 11, 2005
    Publication date: April 28, 2005
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Grigory Arauz, Steven Buchanan
  • Publication number: 20040258518
    Abstract: A multiphase pumping system comprising an electric submersible pumping system. To accommodate the multiphase environment, the electric submersible pumping system utilizes self-lubricating, abrasion resistant ceramic bearings. In one embodiment, the bearings are made from graphite impregnated silicon carbide.
    Type: Application
    Filed: June 18, 2003
    Publication date: December 23, 2004
    Inventor: Steven Buchanan
  • Publication number: 20040011121
    Abstract: A system and method for the abatement of industrial process gases utilizing a combustion engine in combination with an oxidizer. The use of these two elements in conjunction with the use of concentrating equipment where required provides for an energy efficient pollution control method. Means are provided for splitting the gas flow into two streams in any proportion or manner, the first stream mixed with air being passed to a combustion engine, the second being passed to the combustion unit. Means for detecting and controlling are also provided to provide optimal ratio/quantity of gases to the engine in accordance with its requirements.
    Type: Application
    Filed: July 10, 2003
    Publication date: January 22, 2004
    Inventors: Michael Joseph Ashe, Christopher Steven Buchanan