Patents by Inventor Richard Daniel Pereira

Richard Daniel Pereira 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).

  • Backflush valve for milking machine system
    Patent number: 5850845
    Abstract: An improved milking machine backflush valve (2) includes inlet and outlet plates (18, 20) between which a slide pad (16) is slidably housed. The inlet plate has a milk inlet (24) and the outlet plate has a milk outlet (28). The slide pad couples the milk inlet to the milk outlet when in a milking position, and couples the milk inlet to a source of cleaning solution (22) when in a backflush position. The slide pad and inlet and outlet plates have smooth, contacting sliding surfaces (34, 36; 66, 68) and are made of a non-liquid absorbing material, preferably PTFE, so that no seals, which can wear and harbor milk residue and thus bacteria, need be used.
    Type: Grant
    Filed: October 17, 1996
    Date of Patent: December 22, 1998
    Assignee: Pereira Construction, Inc.
    Inventors: Lawrence Pereira, Richard Daniel Pereira