Patents by Inventor Bruce K. Grewell

Bruce K. Grewell 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).

  • Flow meter
    Patent number: 8473225
    Abstract: A simple, passive and rugged device for measuring the flow rate of liquid. A variable area obstruction valve, a differential pressure sensor and a densitometer are combined in a single housing to provide for a highly accurate and precise measure of mass flow.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: June 25, 2013
    Assignee: Eldec Corporation
    Inventors: Michael P. Boulanger, Bruce K. Grewell
  • FLOW METER
    Publication number: 20120285259
    Abstract: A simple, passive and rugged device for measuring the flow rate of liquid. A variable area obstruction valve, a differential pressure sensor and a densitometer are combined in a single housing to provide for a highly accurate and precise measure of mass flow.
    Type: Application
    Filed: July 27, 2012
    Publication date: November 15, 2012
    Applicant: ELDEC CORPORATIOIN
    Inventors: Michael P. BOULANGER, Bruce K. GREWELL
  • Flow meter
    Patent number: 8255175
    Abstract: A simple, passive and rugged device for measuring the flow rate of liquid. A variable area obstruction valve, a differential pressure sensor and a densitometer are combined in a single housing to provide for a highly accurate and precise measure of mass flow.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: August 28, 2012
    Assignee: Eldec Corporation
    Inventors: Michael P. Boulanger, Bruce K. Grewell
  • FLOW METER
    Publication number: 20110264384
    Abstract: A simple, passive and rugged device for measuring the flow rate of liquid. A variable area obstruction valve, a differential pressure sensor and a densitometer are combined in a single housing to provide for a highly accurate and precise measure of mass flow.
    Type: Application
    Filed: July 7, 2011
    Publication date: October 27, 2011
    Applicant: ELDEC CORPORATION
    Inventors: Michael P. Boulanger, Bruce K. Grewell
  • Flow meter
    Patent number: 7983856
    Abstract: A simple, passive and rugged device for measuring the flow rate of liquid. A variable area obstruction valve, a differential pressure sensor and a densitometer are combined in a single housing to provide for a highly accurate and precise measure of mass flow.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: July 19, 2011
    Assignee: Eldec Corporation
    Inventors: Michael P. Boulanger, Bruce K. Grewell
  • FLOW METER
    Publication number: 20090099794
    Abstract: A simple, passive and rugged device for measuring the flow rate of liquid. A variable area obstruction valve, a differential pressure sensor and a densitometer are combined in a single housing to provide for a highly accurate and precise measure of mass flow.
    Type: Application
    Filed: October 9, 2008
    Publication date: April 16, 2009
    Applicant: HYDRO-AIRE, INC.
    Inventors: Michael P. Boulanger, Bruce K. Grewell