Patents by Inventor Marcel Lemaire

Marcel Lemaire 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: 4775392
    Abstract: The installation comprises mainly a reactor (1) for the gasification of powdered coal on a bath (2) of liquid iron, a cooling flue (9) constituting a boiler connecting the outlet of the reactor (1) to a vapor superheater (11) fed with vapor (26) issuing from the boiler, a dust-removing cyclone (13) connected to the outlet of the superheater (11), a thermal exchanger (14) connected to the outlet of the cyclone (13) in which a drying fluid (31, 32)is heated by thermal exchange with the combustible gas, a conditioning tower (16) connected to the outlet of the thermal exchanger, the conditioning tower being connected to a dry electrofilter (17) which feeds a storage gasometer (20) through a three-way valve (21). The heated drying fluid (32) and the vapor (28,30) issuing from the superheater (11) are employed in the installation for preparing and conveying the fuel and the comburent fed to the reactor.
    Type: Grant
    Filed: April 2, 1987
    Date of Patent: October 4, 1988
    Assignee: Union Siderurgique du Nord et de L'Est de la France (USINOR)
    Inventors: Jean Cordier, Marcel Lemaire
  • Patent number: 4649867
    Abstract: This reactor for the gasification of solid fuels in the powdered form, of the type employing a bath of liquid metal (5) comprises: a substantially cylindrical vessel (1) which has a substantially oblong section and lateral walls (2) and a bottom wall (3) which are lined with a refractory lining (4), this vessel further comprising an orifice (37) for discharging the bath of liquid metal, and an orifice (36) for discharging slag supernatant on the bath of liquid metal (5), a dome (11) positioned in a sealed manner on the vessel (1) and having in its upper part in the vicinity of one of the ends of the vessel a sealed box (16) for introducing an injecting branch (17) and, also in its upper part, but at the opposite end of the vessel, an orifice (21) of large section for exhausting the gases produced, and a roughly central orifice (29) for introducing addition elements; and means (8, 9, 10a-e, 6, 13, 14, 15) for cooling the lateral walls and the bottom wall of the vessel and the dome.
    Type: Grant
    Filed: February 21, 1985
    Date of Patent: March 17, 1987
    Assignee: Union Siderurgique du Nord et l'Est de la France (USINOR)
    Inventors: Jean Cordier, Marcel Lemaire