Patents by Inventor Hugh R. Holland

Hugh R. Holland 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: 4531673
    Abstract: Wetting device for wetting and dissolving polymer powders without forming lumps and globular "fish-eyes" which clog the system apparatus. A nozzle holder has an annular passageway disposed therein which communicates with each of a plurality of spaced jet spray nozzles secured to the holder on a bottom face thereof in the form of a ring. Alternate nozzles spray inwardly forming a turbulent curtain of water. Remaining nozzles spray outwardly against inner wall of a spray confining cylinder to wash down polymer therefrom. An open-ended, powder receiving, tubular flexible insert extends through a central opening of the nozzle holder creating an annular space around the flexible insert. Water supplied to the passageway sprays from the nozzles to induce a downward airstream in the annular space to aid in drawing powder through the insert while simultaneously maintaining the powder in a finely divided state when falling into the turbulent curtain of water.
    Type: Grant
    Filed: August 13, 1982
    Date of Patent: July 30, 1985
    Assignee: Pennwalt Corporation
    Inventors: Hugh R. Holland, Rosario Adamo