Patents Assigned to N.V. Acotech S.A.
  • Undulated burner membrane
    Patent number: 6149424
    Abstract: A membrane for radiant gas burners comprises a fabric (18) of metal fibers. The membrane has a surface which has a permanent undulation to such a degree that its surface area is at least five per cent greater than the surface area of a comparable flat membrane. In a preferable embodiment, the amplitude and the pitch of the undulation is such that, in operation, heat is radiated to and reflected from the flanks (24', 24") of the undulation. The result is an increased radiative output and radiative efficiency.
    Type: Grant
    Filed: August 26, 1999
    Date of Patent: November 21, 2000
    Assignees: N. V. Bekaert S.A., N. V. Acotech S.A.
    Inventors: Willy Marrecau, Ozzie Missoum
  • Conical surface burner
    Patent number: 6065963
    Abstract: A surface burner for gas has a gas supply chamber (5) provided with a gas outlet side enclosed by a conically shaped burner membrane (2) fixed to a support net (1). A coupling element (3) connects the chamber (5) with gas supply (4). The burner membrane (2) includes a non-sintered fabric-type structure made of heat resistant stainless steel fiber bundles of individual fibers, wherein the individual fibers have a substantially parallel arrangement and an equivalent fiber diameter of between 1 and 150 .mu.m.
    Type: Grant
    Filed: October 8, 1998
    Date of Patent: May 23, 2000
    Assignees: N.V. Bekaert S.A., N.V. Acotech S.A.
    Inventors: Gabriel Dewaegheneire, Willy Marrecau, Philip Vansteenkiste