Patents by Inventor Stephen W. Rementer

Stephen W. Rementer 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: 4403866
    Abstract: An apparatus and process for automatically and rapidly making a paint having the color values of a standard paint; a computer is used which is connected to and controls a multiplicity of metering pumps that are each individually connected to a supply of components used to make the paint such as binder solution, solvent and colorants; the components are accurately metered into a mixing vessel and mixed, paint is circulated through a recycle loop attached to the vessel, the loop contains a cell having a viewing window through which the paint is pumped, a colorimeter views the cell and determines the color values of the wet paint and feeds these values back to the computer which compares the values to values of the standard paint and calculates the amount of colorant to be added and signals the metering pumps to add colorant, the process is repeated until the paint is brought within the tolerance values of the standard paint.
    Type: Grant
    Filed: May 7, 1982
    Date of Patent: September 13, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Allan F. Falcoff, Stephen W. Rementer, Allan B. J. Rodrigues