Bizarre Patents
Combination Beverage Container and Spittoon
A combination beverage container and spittoon includes a bottom portion including outer wall and a first inner wall defining a spittoon space.
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| Number | Title | Issue Date |
| 4175873 | Process and apparatus for mechanically mixing two immiscible liquids and one or more other substances A process and apparatus are disclosed for mechanically mixing two immiscible liquids and one or more other substances by creating in the upper portion of the apparatus a continuous dual-layer liquid film composed of upper and lower layers of immiscible li... | 11/27/1979 |
| 3998433 | Continuous mixing machine for moistening powdered material Powdered material is fed downwardly into the mixing chamber through a vertical feed pipe while liquid is fed into the chamber in the form of annular thin film descending along the inner wall surface of an inverted frusto-conical overflow structure arrange... | 12/21/1976 |
| 3932794 | Revolution speed controller using both analog and digital control A controller, such as for maintaining a selected constant rotational speed of a controlled unit, uses analog signals and circuits for fast coarse correction and uses slower digital signals and circuits for additional fine correction. A device is provided ... | 01/13/1976 |
