Patent ID: 8070353

Claim:
A horizontal mixer comprising: a mixing bowl having an upper opening; a roof configured to close the upper opening and having a material feed port; a material feed tube attached to the roof and extending upwardly from a periphery of the material feed port to define a material feed passage extending through the material feed port; and, a lid disposed in the material feed tube and being displaceable between a closed position to close the material feed port and an open position to open the material feed port, wherein the lid has an inner surface that is, at the closed position, brought into a position where the inner surface is flush with an inner surface of the roof, wherein the mixing bowl includes a bottom wall and a peripheral wall extending upward from the bottom wall thereof to the upper opening, and has, at an upper end of the peripheral wall defining the upper opening, a scraper plate made of resilient material, and wherein the scraper plate relatively slides on the inner surface of the roof when the mixing bowl is moved relative to the roof for taking mixed material out of the mixing bowl.