Patents by Inventor Michael P. Boulanger

Michael P. Boulanger 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).

  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • Patent number: 5728950
    Abstract: A fluid flowmeter includes a turbine for imparting an angular momentum to a main flow of fluid related to a flow of fluid through the turbine. The flowmeter also includes an impeller for undergoing an angular deflection in response to the angular momentum of the main flow, which angular deflection is indicative of flowrate of the main flow. A poppet valve is provided for opening substantially as a function of pressure of the main flow to provide a bypass flow of fluid. The flow of fluid through the turbine is at most equal to the main flow reduced by the bypass flow. The valve is adapted such that the bypass flow varies so as to ensure that the flow through the turbine maintains substantially constant rotational speed of the turbine independent of flowrate of the main flow.
    Type: Grant
    Filed: May 20, 1996
    Date of Patent: March 17, 1998
    Assignee: Ametek Aerospace Products, Inc.
    Inventor: Michael P. Boulanger