Bizarre Patents
An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
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| Number | Title | Issue Date |
| 5074709 | Device and method for containing fluid spills An elongated floating boom device for containing spilled fluids such as crude oil, is disclosed. The boom device is manufactured from its constituent components at the spill site. At least one continuous sheet of a plastic material is folded along its lon... | 12/24/1991 |
| 5072549 | Method of cutting gemstones and product A method of cutting facets on a gemstone to form a pentagonal shaped gem product such that the cut facets produce a five-legged star to appear beneath the gem table. The gem product produced by this method comprises a pavilion having thirty facets and fif... | 12/17/1991 |
| 5071308 | Apparatus for loading and carrying boats A boat loading and storage apparatus comprising a load support frame having forward and rearward end for supporting a boat or similar load above a vehicle. The load support structure includes a pair of spaced apart adjacent telescoping beams adapted to be... | 12/10/1991 |
| 5033510 | Removable isolation baffle for wastewater conduit A conduit isolation baffle assembly designed to be installed in a conduit system such as a vent and wastewater system of a building. The flexible baffle is installed in a groove having a sidewall and seat formed in the interior surface of a conduit to iso... | 07/23/1991 |
