Patents Examined by Eugene L. Szezecina, Jr.
  • Canned motor pump
    Patent number: 4890988
    Abstract: A canned motor pump wherein the can has two coaxial tubular walls defining an annular space for the flow of a heat exchange fluid which heats or cools the can. If the can has an end wall, the latter can be formed with an additional space which communicates with the annular space. The driven rotor within the can can be rotated by a stator which surrounds the can or by a hollow rotor which rotates the driven rotor by way of one or more magnets. The can can be heated by an electric heater.
    Type: Grant
    Filed: November 18, 1987
    Date of Patent: January 2, 1990
    Assignee: Heyko Reinecker
    Inventors: Roland Kramer, Robert Neumaier