Patents by Inventor David M. Krasiewich

David M. Krasiewich 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 and apparatus for blending fluids to maintain concentration of one below a predetermined maximum
    Patent number: 4183384
    Abstract: A safety apparatus for use in fluid blending and dispensing devices wherein it is essential to insure that one of the fluids to be blended be maintained below a defined maximum concentration. The apparatus comprises a single valve located in the inlet line of the fluid to be controlled, which is operable upon detection of an increase in the flow rate of the fluid to be controlled or by a decrease in the flow rate of any of the other fluids with which it is being blended.
    Type: Grant
    Filed: January 18, 1978
    Date of Patent: January 15, 1980
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Eugene D. Ervin, Frederick K. Kitson, David M. Krasiewich, Thomas E. McWhorter