Patents by Inventor Michael A. F. Gumbert

Michael A. F. Gumbert 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: 5698264
    Abstract: Novel compositions and methods are provided for forming masks used in air brash painting. The masking compositions used in this invention are liquids as applied and are hardenable into a friable paint masking layer. The preferred compositions of this invention are comprised of a hydratable binder, such as plaster of Paris, an inert filler, such as calcium carbonate, and water. The amount of the filler is selected relative to the amount of the binder to substantially weaken and make friable the resulting hardened layer. In the method of this invention the composition is applied to the area of a substrate to be masked. The applied layer if desired is shaped with a tool to provide details in the resulting mask. The layer is then hardened to form a brittle friable masking layer directly adhered to surface of the substrate. The substrate is then airbrush painted. The mask is removed by fracturing the mask and removing the resulting particles.
    Type: Grant
    Filed: March 14, 1996
    Date of Patent: December 16, 1997
    Inventor: Michael A. F. Gumbert
  • Patent number: 5562766
    Abstract: Novel compositions and methods are provided for forming masks used in air brush painting. The masking compositions used in this invention are liquids as applied and are hardenable into a friable paint masking layer. The preferred compositions of this invention are comprised of a hydratable binder, such as plaster of Paris, an inert filler, such as calcium carbonate, and water. The amount of the filler is selected relative to the amount of the binder to substantially weaken and make friable the resulting hardened layer. In the method of this invention the composition is applied to the area of a substrate to be masked. The applied layer if desired is shaped with a tool to provide details in the resulting mask. The layer is then hardened to form a brittle friable masking layer directly adhered to surface of the substrate. The substrate is then airbrush painted. The mask is removed by fracturing the mask and removing the resulting particles.
    Type: Grant
    Filed: August 29, 1994
    Date of Patent: October 8, 1996
    Inventor: Michael A. F. Gumbert