Patents by Inventor Erich Pfanstiel

Erich Pfanstiel 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: 5016782
    Abstract: A dispenser for viscous materials has a cylindrical housing with an open end, a hollow cylinder which is reciprocable in the housing and defines a chamber for viscous material. One end of the chamber is adjacent a wall member of the cylinder which is provided with an outlet for viscous material, and the other end of the chamber is adjacent a piston which is mounted on a guide of the housing and is movable with the cylinder only in a direction to extract the cylinder from the housing. The wall member serves to move the entire cylinder in a direction to move the wall member toward the piston and to thereby expel material from the chamber, and the tubular wall of the cylinder adjacent the wall member is used to pull the cylinder in the opposite direction whereby the tubular wall of the cylinder entrains the piston so that the effective volume of the chamber for viscous material remains unchanged during movement of the cylinder in the opposite direction.
    Type: Grant
    Filed: June 13, 1989
    Date of Patent: May 21, 1991
    Inventor: Erich Pfanstiel
  • Patent number: 4846371
    Abstract: A dual agent dispensing container has plural chambers with a single independently acting agent dispensing mechanism in each chamber. The dispensing mechanism includes a key operating a push rod connected to a plunger via a one-way acting spring drive. The dispenser can be utilized to dispense plural agents together or separately in time.
    Type: Grant
    Filed: December 31, 1987
    Date of Patent: July 11, 1989
    Inventor: Erich Pfanstiel
  • Patent number: 4299207
    Abstract: A massage arrangement includes a frame positioned against a vertical wall and a plurality of massage rollers to apply a massaging force to a body to be massaged. This body is located in a substantially vertical position between lateral sides of the frame. The frame is slanted and supported by a resilient member mounted between the wall and the upper end of the frame. The resilient member generates a force which yieldably supports the frame so the massage rollers may yield in direction away from the body to be massaged upon the advancing movement of the massage rollers in contact with the projecting parts of the human body.
    Type: Grant
    Filed: February 11, 1980
    Date of Patent: November 10, 1981
    Inventor: Erich Pfanstiel