Patents by Inventor Paul J. Singelyn

Paul J. Singelyn 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).

  • Counterflow spray rinse process
    Patent number: 4654089
    Abstract: A process and an apparatus for rinsing a chemically treated or plated article by sequentially moving the article initially over a chemical solution bath and subsequently over a plurality of rinse baths, in which the article is sprayed as it rises from each successive bath with a less concentrated rinse solution from the next succeeding bath.
    Type: Grant
    Filed: May 31, 1985
    Date of Patent: March 31, 1987
    Inventors: Daniel D. Singelyn, Paul J. Singelyn
  • Apparatus for dehydrating metal hydroxide sludge
    Patent number: 4643108
    Abstract: A method and apparatus for dehydrating a metal hydroxide sludge, including depositing the concentrated metal hydroxide sludge containing approximately 60-80% water into a feed hopper, breaking up the concentrated sludge with rotary beaters and preferably a rotary breaker bar, then transferring the broken sludge through a feed auger to an elongated dehydrater chamber in which the sludge is conveyed longitudinally along the dehydrater chamber by a dryer auger continuously in contact with a longitudinally flowing hot gas. The moisture-laden hot gas is exhausted from the outlet end of the dehydrater chamber while the dryed sludge is deposited through a discharge port.
    Type: Grant
    Filed: January 3, 1986
    Date of Patent: February 17, 1987
    Inventors: Daniel D. Singelyn, Paul J. Singelyn