Bizarre Patents
A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 6912891 | Characterization of fluids using ultrasound A method of using ultrasonic reflectance to characterize physical properties of fluids, particularly food solutions. In general, the method comprises the steps of: (a) generating longitudinal ultrasonic waves, (b) coupling the transducer to the fluid being investiga... | 07/05/2005 |
| 6899294 | Hatchery eggshell waste processing method and device A method and apparatus for separating the organic membrane portion of waste egg shells from the hard inorganic mineral portion thereof, so that each can be used or further processed as desired, thereby addressing the environmental and economic issues associated with... | 05/31/2005 |
| 6877959 | Surface aeration impellers The invention is an improved surface aeration impeller for use in a liquid filled tank which particularly increases the surface turbulence and the entrainment of gas into the liquid surface. The impeller is an axial flow impeller and may be either a pitched blade tu... | 04/12/2005 |
| 6874748 | Active floor vibration control system An active vibration control system for controlling excessive or unwanted vibrations in floors or other structures. The system has three main components: (1) velocity sensor w/signal conditioner; (2) feedback controller; and (3) proof-mass actuator. This system works... | 04/05/2005 |
| 6848593 | Automated portable medication radial dispensing apparatus and method using a carrier tape A portable medication cartridge allows for both manual and automated dispensing of tablets or capsules of virtually all sizes through a radial dispensing apparatus. The cartridge may be sealed and encoded with medication and patient identification. A microprocessor ... | 02/01/2005 |
| 6811531 | Horizontal centrifuge rotor A horizontal centrifuge rotor for use in existing and new centrifuges. The horizontal centrifuge rotor includes a rotor bottom with an outer rib encircling the rotor bottom. The outer rib extends upward from the rotor bottom to form an exterior wall about the rotor.... | 11/02/2004 |
| 6793437 | Side-mounted shoulder compaction roller A compaction roller particularly useful for vibration compaction of the shoulder area of roadways. The compactor is designed as an attachment for side-mounting to self-propelled or motorized machinery (e.g. a skid steer front loader). The compaction roller contains:... | 09/21/2004 |
| 6715912 | Surface aeration impellers A surface aeration impeller for use in a liquid filled tank. The impeller is rotatable about an axis perpendicular to the static liquid surface. The impeller has a plurality of blades mounted on the underside of a disc or disc-like surface. Each blade has a multi-fa... | 04/06/2004 |
| 6464384 | Mixer systems A system for providing improved bulk liquid mixing and effective gas-liquid contacting for mass transfer of the gas to the liquid, especially a non-Newtonian liquid, the viscosity of which decreases when under shearing conditions (shear thinning), in an u... | 10/15/2002 |
