Patents by Inventor Ronal MacInnes

Ronal MacInnes 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 pressure indicator having a proximity switch arrangement
    Patent number: 10648504
    Abstract: A pressure indicator assembly disposed in a bearing has a first pressure relief valve and a first piston disposed in a first passage formed in a first component of the bearing and a first proximity switch disposed an initial distance away from the first piston. A first preset pressure value is set on the first pressure relief valve to indicate when pressure within the bearing is greater than or equal to the first preset pressure value.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: May 12, 2020
    Assignee: Schlumberger Technology Corporation
    Inventors: Bastiaan Liezenberg, Ronal MacInnes
  • Bearing Pressure Indicator
    Publication number: 20180087571
    Abstract: A pressure indicator assembly disposed in a bearing has a first pressure relief valve and a first piston disposed in a first passage formed in a first component of the bearing and a first proximity switch disposed an initial distance away from the first piston. A first preset pressure value is set on the first pressure relief valve to indicate when pressure within the bearing is greater than or equal to the first preset pressure value.
    Type: Application
    Filed: April 22, 2016
    Publication date: March 29, 2018
    Inventors: Bastiaan Liezenberg, Ronal MacInnes