Patents by Inventor Guenther Will

Guenther Will 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).

  • Mold for molding ceramic materials
    Patent number: 5033950
    Abstract: A porous, open-pore, hardened, plastic mold for shaping a ceramic article by any of various ceramic shaping methods. The mold is prepared by subjecting a water-in-oil emulsion to hardening in the desired mold shape without breaking the emulsion and then drying the hardened, shaped mold. The emulsion has incorporated in it any of sodium disilicate or disodium tetraborate to accelerate the shaping of the ceramic article in the mold. The emulsion may also have incorporated in it any of microbeads of glass, barite, quartz powder and powdered polymers to reduce the pure volume and increase the mechanical strength of the porous, open-pored hardened, plastic mold.
    Type: Grant
    Filed: March 6, 1990
    Date of Patent: July 23, 1991
    Assignee: Sacmi-Cooperativa Meccanici Imola-Soc. Coop. a r.l.
    Inventor: Guenther Will
  • Molding of ceramic materials
    Patent number: 4908174
    Abstract: A porous, open pore, hardened, plastic composition suitable as a replacement for plaster for use as a mold in shaping a ceramic article by any of various ceramic shaping methods prepared by subjecting a water-in-oil emulsion to hardening, without breaking the emulsion, and then drying the hardened product, the emulsion having a viscosity of 1600-5000cP and/or containing 2-12% by weight of an alkali-reactive, water-binding material, the water phase/oil phase ratio providing an open pore volume in the composition equivalent to 10-60% of the total volume of the composition.
    Type: Grant
    Filed: January 25, 1989
    Date of Patent: March 13, 1990
    Inventor: Guenther Will
  • Molding of ceramic materials
    Patent number: 4801624
    Abstract: A porous, open-pore, hardened, plastic composition suitable as a replacement for plaster for use as a mold in shaping a ceramic article by any of various ceramic shaping methods prepared by subjecting a water-in-oil emulsion to hardening, without breaking the emulsion, and then drying the hardened product, the emulsion having a viscosity of 1600-5000 cP and/or containing 2-12% by weight of an alkali-reactive, water-binding material, the water phase/oil phase ratio providing an open pore volume in the composition equivalent to 10-60% of the total volume of the composition.
    Type: Grant
    Filed: July 28, 1987
    Date of Patent: January 31, 1989
    Inventor: Guenther Will
  • Molding of ceramic materials
    Patent number: 4727092
    Abstract: A method for producing a plastic material from a water-in-oil emulsion of an unsaturated polyester resin dissolved in a hardenable compound containing an ethylenically unsaturated group. The emulsion has an adjusted viscosity of 1600-5000 cp. The plastic material is suitable as a replacement for plaster in the shaping of ceramics. The emulsion may contain an alkali-reactive water-binding material to increase the ceramic forming capability of the plastic material.
    Type: Grant
    Filed: May 28, 1987
    Date of Patent: February 23, 1988
    Inventor: Guenther Will