Patents by Inventor Albert E. Plomp

Albert E. Plomp 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).

  • Packer cups
    Patent number: 7261153
    Abstract: A packer cup for use in sealing the interior of a pipe under pressure is described. The cup uses a bell-shaped end which has a lip of softer material which is integral with the body of the cup which is harder material. Under pressure the lip expands against the side of the pipe and as pressure increases the body of the bell also expands against the pipe.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: August 28, 2007
    Inventor: Albert E. Plomp