Patents by Inventor Peter E. Maidment

Peter E. Maidment 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).

  • Apparatus for controllably injecting contaminant material into a liquid flow system
    Patent number: 4188970
    Abstract: This apparatus is primarily intended for use in injecting selected quantities of solid fine contaminant particles into a liquid flow system having a filter, separator, coalescer or the like therein to determine the performance of the same in removing the contaminants from the liquid. The apparatus, however, may be used to inject other contaminant materials, not necessarily solid fine particles, into a flowing liquid.
    Type: Grant
    Filed: May 30, 1978
    Date of Patent: February 19, 1980
    Inventors: Peter E. Maidment, Marcel Thouin