Patents by Inventor Raymond Chauvin

Raymond Chauvin 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).

  • Crane attachment for backhoe
    Patent number: 4917566
    Abstract: The invention enables owners of backhoes and similar equipment to use their machines either as a backhoe or as a crane with only minor modifications. The invention provides an attachment for a backhoe that takes advantage of existing hydraulic pistons on the backhoe as the lift implement for the crane.
    Type: Grant
    Filed: November 17, 1988
    Date of Patent: April 17, 1990
    Assignee: Contractors Crane Service, Inc.
    Inventor: J. Raymond Chauvin
  • Fluidized bed treatment apparatus
    Patent number: 4235024
    Abstract: An apparatus for producing a treatment bed with a fluidized, circulating medium comprises a fluidization container having intake means for a fluidization agent and means for vibration in the longitudinal direction comprises a fluidization grid consisting of a plate having a plurality of vents arranged in rows alternating with a plurality of rectilinear unvented strips, the strips being parallel to the vertical plane containing the direction of the vibrations.
    Type: Grant
    Filed: November 21, 1978
    Date of Patent: November 25, 1980
    Assignee: Charbonnages de France
    Inventors: Raymond Chauvin, Pierre Guillon
  • Separation of products in granular form
    Patent number: 4071304
    Abstract: In apparatus for treating and separating products in granular form, a container is provided with fluidization and vibration means, the grains and the pulverulent solid are subjected to the fluidization treatment only in a vertical portion of the bed, the circulation currents arising therefrom are utilized for separating, within the container itself, the treated product in granular form from the pulverulent solid, and the vibrations are utilized for discharging the treated products to the outside.
    Type: Grant
    Filed: May 26, 1976
    Date of Patent: January 31, 1978
    Assignee: Charbonnages de France
    Inventors: Raymond Chauvin, Pierre M. M. Guillon
  • Manufacture of light granular materials
    Patent number: 4057605
    Abstract: Light granular material is manufactured from silico-aluminous material by crushing and/or screening the silico-aluminous material to a fine powder which is mixed with water to form a slip which is divided into drops which are immediately introduced into a hot fluidised bed. The water evaporates rapidly and the drops are converted into expanded granules which are recovered and subjected to ceramic firing.
    Type: Grant
    Filed: December 4, 1975
    Date of Patent: November 8, 1977
    Assignee: Charbonnages de France
    Inventor: Raymond Chauvin
  • Apparatus for the manufacture of light granulates
    Patent number: 3979168
    Abstract: An expanded granular material, particularly intended as a lightweight aggregate for concrete, is produced by melting a finely ground fusible silico-aluminous material, such as fly ash, in the presence of a controlled atmosphere intended to inhibit the liberation of gases coming from the silico-aluminous material, and then forming the melt into drops and cooling under conditions to permit gases to escape from the material thereby causing is expansion.
    Type: Grant
    Filed: February 11, 1975
    Date of Patent: September 7, 1976
    Assignees: Charbonnages de France, Houilleres du Bassin du Nord et du Pasde-Calais
    Inventor: Raymond Chauvin