Patents by Inventor Robert Ian Robson

Robert Ian Robson 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).

  • Skinning of progressive cavity apparatus
    Patent number: 8337182
    Abstract: A skinned rotor 201 or skinned stator 305 of a progressive cavity apparatus is described. A rotor 201 can be skinned by threading a sleeve 210 with a profiled helical outer 212 and profiled helical inner 214 surface onto a core 202 with a profiled helical outer surface 204. A rotor (1301, 1401) can also be skinned by inserting a non-helical core (1302, 1402) into a non-helical longitudinal bore (1314, 1414) of a sleeve (1310, 1410) with a profiled helical outer surface (1312, 1412). A stator 305 can be skinned by threading a tubular liner 310 with profiled helical inner 314 and profiled helical outer 312 surfaces into a profiled helical bore 308 of a tube 306. A stator (2405, 2505) can also be skinned by inserting a tubular liner (2410, 2510) with a non-helical outer surface (2412, 2512) into a non-helical bore (2408, 2508) of a tube (2406, 2506).
    Type: Grant
    Filed: October 3, 2006
    Date of Patent: December 25, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Lawrence Lee, Robert Ian Robson, Olivier Sindt, Michael Shepherd, Norman Ward
  • Skinning of progressive cavity apparatus
    Publication number: 20090016893
    Abstract: A skinned rotor 201 or skinned stator 305 of a progressive cavity apparatus is described. A rotor 201 can be skinned by threading a sleeve 210 with a profiled helical outer 212 and profiled helical inner 214 surface onto a core 202 with a profiled helical outer surface 204. A rotor (1301, 1401) can also be skinned by inserting a non-helical core (1302, 1402) into a non-helical longitudinal bore (1314, 1414) of a sleeve (1310, 1410) with a profiled helical outer surface (1312, 1412). A stator 305 can be skinned by threading a tubular liner 310 with profiled helical inner 314 and profiled helical outer 312 surfaces into a profiled helical bore 308 of a tube 306. A stator (2405, 2505) can also be skinned by inserting a tubular liner (2410, 2510) with a non-helical outer surface (2412, 2512) into a non-helical bore (2408, 2508) of a tube (2406, 2506).
    Type: Application
    Filed: October 3, 2006
    Publication date: January 15, 2009
    Inventors: Lawrence Lee, Robert Ian Robson, Olivier Sindt, Michael Shepherd, Norman Ward
  • Time-delayed connector latch
    Patent number: 6510899
    Abstract: A connector latch includes a housing body having an internal cavity, a grippable member slidably coupled to the housing body, and a hydraulic mechanism on the housing body for delaying sliding of the housing body relative to the grippable member when an external force is applied to the housing body.
    Type: Grant
    Filed: February 21, 2001
    Date of Patent: January 28, 2003
    Assignee: Schlumberger Technology Corporation
    Inventors: Todor K. Sheiretov, Roger A. Post, Robert Ian Robson, Joseph F. Cordera