Patents by Inventor Chris Engström

Chris Engström 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).

  • Single diaphragm differential pressure sensor having a measuring spindle attached to the diaphragm
    Patent number: 6543290
    Abstract: In a flowmeter for measuring fluid flow, fluid passes through a primary element (20) in which the pressure on respective sides of the restriction (2a) acts on respective sides of the diaphragm (11) mounted in a diaphragm housing (3). The diaphragm, in turn, acts on a measuring element (17) provided with strain gauges (27) connected to a measuring bridge (5). The signals from the measuring bridge (5) can be used to indicate the flow through the orifice plate, for example, on an indicating instrument (7), or otherwise to record changes in the flow or control the flow to a desired value by means of a control system.
    Type: Grant
    Filed: May 8, 2000
    Date of Patent: April 8, 2003
    Assignee: Eletta AB
    Inventors: Chris Engström, Åke Eriksson