Patents by Inventor Laurent Bongrand

Laurent Bongrand 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 flow control device housed in a thermostatic faucet
    Patent number: 6402041
    Abstract: The invention relates to a control device for controlling the flow of a fluid through a thermostatic faucet comprising a temperature control device (5) within the body of the faucet for controlling the outlet temperature of the fluid and comprising a thermosensitive element (3) and a flow control device (11) for controlling the flow from the faucet. The temperature control device includes a control knob (12) and the flow control device includes a control element (13). This control device is characterized in that the flow control device (11) is disposed downstream from the mixing chamber and controls the flow cross section of an outlet located downstream from the mixing chamber, and the control knob and control element are located on the same side of the body of the faucet that houses the control device, and on the opposite side from the outlet.
    Type: Grant
    Filed: December 4, 2000
    Date of Patent: June 11, 2002
    Assignee: Eurotherm Watts, S.A.
    Inventors: Eddy Jelloul, Frédéric Regnier, Laurent Bongrand
  • Device for equalizing hot water and cold water pressures and faucet, particularly thermostatic, for said equalizing device
    Patent number: 6382517
    Abstract: The invention relates to a device for equalizing the hot water and cold water pressures in a hot water faucet for sanitary use comprising, upstream from a thermostatic unit (200); a moving element (108) constituted by a membrane (109) whose plane determines the plane of symmetry of the chambers and a control rod (110) passing through the membrane (109) at its center, to which rod said membrane is attached, valves (111, 112) mounted on each of the two ends of the common control rod, which cooperate with seats (113, 114), means (115, 116) for translationally guiding the control rod, a nonreturn valve (117, 118) installed in each of the inlets of the chambers. This device is characterized in that the guiding means (115, 116) are located at each of the ends of the control rod and have guiding surfaces smaller than the cross section of the valve and/or the control rod.
    Type: Grant
    Filed: February 16, 2000
    Date of Patent: May 7, 2002
    Assignee: Watts Eurotherm SA
    Inventors: Christian Bommelaer, Laurent Bongrand
  • Safety device for a hot water faucet for sanitary use and faucet, particularly thermostat, equipped with said safety element
    Patent number: 6293295
    Abstract: The invention relates to a safety device for a sanitary hot water faucet characterized in that it comprises: a receptacle (10) passing all the way through a casing having a T shape, a seat (14) of a valve (15), delimited in the bore near its upstream end, installed in the receptacle from the upstream end: a valve (15) with an elastic element (16) that stresses it toward its so-called closed position and a so-called control rod (17) of the valve, locally comprising a fusible material (19) which, when it is subjected to a temperature higher than a predetermined temperature, melts so that the length of the control rod is reduced, thus causing the closing of the valve.
    Type: Grant
    Filed: February 16, 2000
    Date of Patent: September 25, 2001
    Assignee: Watts Eurotherm, S.A.
    Inventors: Laurent Bongrand, Christian Bommelaer
  • Fluid flow control device housed in a thermostatic faucet
    Publication number: 20010007336
    Abstract: The invention relates to a device for controlling the flow of a fluid, housed in a thermostatic faucet comprising:
    Type: Application
    Filed: March 16, 2001
    Publication date: July 12, 2001
    Applicant: Watts Eurotherm S.A.
    Inventors: Eddy Jelloul, Frederic Regnier, Laurent Bongrand