Patents by Inventor Mark Perelshteyn

Mark Perelshteyn 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).

  • Fluid mass flow meters
    Patent number: 5458005
    Abstract: A fluid mass flow meter comprises a swirl generator 16 followed by a convergent nozzle 20 which produce a strongly swirling flow with periodic pressure fluctuations. The flow is subjected to a Coriolis force in a divergent nozzle 26. The pressure fluctuations are sensed by axially-spaced pressure-collecting pipes 32, 32', and a phase shift in the pressure fluctuations between the two pipes due to the Coriolis force is a measure of mass flow.
    Type: Grant
    Filed: July 15, 1993
    Date of Patent: October 17, 1995
    Assignee: ABBK-Flow Inc.
    Inventor: Mark Perelshteyn
  • Hydrodynamic fluid divider for fluid measuring devices
    Patent number: 5297426
    Abstract: A hydrodynamic fluid divider is provided whereby by a shunt line directs a portion of the overall flow of a defined fluid stream through a flow measuring device, such as a Coriolis mass flow meter. The proportion of the shunt line flow portion is determined by the relationship of various fluid restrictions within the shunt line and the main line of the divider. The measured flow value for the shunt line flow is utilized along with a scale-up factor to determine the overall flow through the divider. The proportional relationship of the shunt line to the overall flow permits a reduction in the size and operational requirements for the flow measuring device.
    Type: Grant
    Filed: April 7, 1993
    Date of Patent: March 29, 1994
    Assignee: ABB K-Flow Inc.
    Inventors: Martin Kane, Mark Perelshteyn