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 |
| 6202496 | Apparatus for the measurement of viscoelastic characteristics of bodies A device for measuring the elastic-viscous properties of objects, in particular objects made of an elastomer material such as rubber, has a measurement body movable in relation to a holder and having a measurement head that can be set on a test object, me... | 03/20/2001 |
| 4612799 | Method and apparatus for measuring viscosity A method and apparatus for measuring viscosity of an oil at low temperature and low shear stress. It employs a columnar container of the oil with vertically spaced temperature control devices to apply different cooling histories simultaneously. After the ... | 09/23/1986 |
| 4596137 | Method and apparatus for measuring the penetration of fluids A method and apparatus for measuring the penetration of fluids which includes a sandwich formed of a substantially flat plate means adapted to have a portion thereof immersed in a fluid and a cover plate in surface contact therewith and clamp means to sec... | 06/24/1986 |
| 4011901 | Method determining the suitability of metal compositions for casting A process is provided by determining the castability of a metallic composition comprising a metal matrix containing secondary solid and discrete degenerate dendrites. The composition is heated and a calibrated probe is contacted under force to the surface... | 03/15/1977 |
