Patents by Inventor Mark A. Stolle

Mark A. Stolle 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).

  • Infiltration pump
    Patent number: 4612010
    Abstract: The infiltration pump has an outer cylinder and an inner piston mounted for reciprocal motion within the cylinder. A fluid displacing seal is attached to one end of the piston. A coil biasing spring is placed within the cylinder between the piston and the fluid dispensing end of the cylinder. One end of the spring is seated against the fluid dispensing end of the cylinder. The other end of the spring is seated against an adaptor section which transfers the biasing force of the spring evenly over the face of the fluid displacing seal.
    Type: Grant
    Filed: August 14, 1985
    Date of Patent: September 16, 1986
    Inventors: Edward N. Hamacher, Mark A. Stolle