Patents by Inventor Gerard Yves Richard

Gerard Yves Richard 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).

  • Process for regenerating foundry sand
    Patent number: 4113510
    Abstract: Foundry sand particles are regenerated by contact with a liquid containing ither a peroxide oxidant or an oxidizing salt to remove resinous binder material accumulated around each of the particles.
    Type: Grant
    Filed: October 8, 1976
    Date of Patent: September 12, 1978
    Assignee: Societe d'Applications de Procedes Industriels et Chimiques S.A.P.I.C.
    Inventor: Gerard Yves Richard
  • Self-hardening molding compositions
    Patent number: 4088624
    Abstract: A composition of self-hardening molding material and the hardening process re provided for making a solid or a hollow body wherein self-hardening molding material comprising at least one inert charge, either in granule and/or in powder form is intimately mixed with at least one organic resin serving as binding agent, and at least with one agent for the hardening of the binder, characterized by the fact that it includes fluoride (F.sup.-) ions.
    Type: Grant
    Filed: May 3, 1976
    Date of Patent: May 9, 1978
    Assignee: Societe d'Applications de Procedes Industriels et Chimiques S.A.P.I.C.
    Inventors: Asita Bhattacharyya, Michel Jean-Claude Dormoy, Gerard Yves Richard
  • Process and apparatus for cleaning particulate materials
    Patent number: 4004942
    Abstract: A process and apparatus are provided for mechanically and pneumatically cning and stripping particulate granular and/or pulverulent solid materials which are particularly applicable to the regeneration of old foundry sand agglomerated by a binder. The particulate materials are introduced into and projected by a current of gas against the interior sides of a rotating drum where the materials are repeatedly subjected to a shock treatment.
    Type: Grant
    Filed: June 5, 1975
    Date of Patent: January 25, 1977
    Assignee: Societe d'Applications de Procedes Industriels et Chimiques S.A.P.I.C.
    Inventor: Gerard Yves Richard