Patents Assigned to Societe Natinoale Elf Aquitaine (Production)
  • Motorized rotary swivel equipped with a dynamometric measuring unit
    Patent number: 5272925
    Abstract: A motorised rotary swivel for driving drill pipe in rotation is disclosed. The swivel includes a measuring unit for measuring a dynamometric behavior of the drill pipe which is mounted adjacent to the output of the motor between the motor and a torque wench assembly.
    Type: Grant
    Filed: August 7, 1992
    Date of Patent: December 28, 1993
    Assignee: Societe Natinoale Elf Aquitaine (Production)
    Inventors: Henry Henneuse, Denis Becq