Bizarre Patents
Mouthguard made at least partially from an edible candy
A mouthguard includes a U-shaped upper bite plate which removably fits over upper teeth of a person, with the entire upper bite plate being made from a soft, deformable and edible gummi candy.
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| Number | Title | Issue Date |
| 8042389 | Adjustable hydrometer A hydrometer, hydrometer kit, and method of measuring the salinity/density or the salinity/specific gravity of a liquid are provided. The hydrometer may include a box structure comprising side walls and a bottom. At least a portion of one of the side walls may be su... | 10/25/2011 |
| 7409861 | Concentration detector A concentration detector is adapted to detect the concentration of a liquid fuel in a container. The concentration detector comprises a rotating mechanism positioned underneath the level of the liquid fuel and having a rotational center. A first float having a speci... | 08/12/2008 |
| 7404323 | Concentration detector and fuel supplier with said detector A concentration detector is disclosed, which is adapted to detect a concentration of a liquid fuel in a container. The concentration detector includes a rotating means positioned underneath a level of a liquid fuel and rotatable at an angle θ on a X-Y plane. The ro... | 07/29/2008 |
| 6776040 | Self-leveling hydrometer The present invention is a self-leveling hydrometer. A balance hanger is on top of a handle, which connects to a swinging support part. An imbalanced load is in the center of the floating measurement indicator and the imbalanced load can rotate freely in the round h... | 08/17/2004 |
| 6561026 | Hydrometer A hydrometer comprises a transparent container including a top opening, two arcuate dividers extended from both sides of top opening for dividing the interior of container into a measuring chamber and two opposite side channels each having a bottom open e... | 05/13/2003 |
| 6457357 | Fluid density measurement device A fluid density measurement device includes a float (12) and a weight (14), each mounted on links (16) for essentially vertical movement. A crank (22) is mounted above the float and weight and is connected to them,by a float link (24) and a counterweight ... | 10/01/2002 |
| 5631420 | Hydrometer A hydrometer includes a liquid container defining a measuring chamber. A pointer is pivotally mounted inside the measuring chamber and adapted for indicating the specific gravity of a liquid sample contained in the measuring chamber. The liquid container ... | 05/20/1997 |
| 4989453 | Battery condition indicator A battery condition readout device is disclosed. A series of slides of varying densities float or sink according to the amount of charge. An optical system permits slide position to be seen at a point external to the battery.... | 02/05/1991 |
| 4981042 | Apparatus for determining the density of a liquid An instrument for measuring the density of a liquid is disclosed comprising a housing having a solution chamber, and a separate instrument chamber. The solution and instrument chambers are separated by an isolating means, a portion of which is flexible. A... | 01/01/1991 |
| 4738295 | Method and apparatus for evaporating a fluid in a rotating vacuum evaporation system A method and apparatus of controlling a rotating vacuum evaporation system is disclosed. The rotating flask, containing the medium to be evaporated, is buoyantly supported in a liquid bath and the relative elevation between the flask and the liquid level ... | 04/19/1988 |
| 4697454 | Combined hydrometer for testing the battery and radiator fluid A combined hydrometer for measuring the specific gravity of a radiator fluid and a battery fluid including a fluid chamber having a transparent front window, a substantially horizontal axis in the chamber, an upper battery fluid scale having readings corr... | 10/06/1987 |
| 4353253 | Device for measuring the density of fluids A device for measuring the density of fluids comprises two float elements of unequal density distribution pivotally mounted on a common axis about which they rotate in opposite directions with change of density of the fluid in which they are immersed. The... | 10/12/1982 |
| 4275593 | Specific gravity meter for aircraft de-icing equipment Apparatus is disclosed for determining the proportion of ethylene glycol in an aqueous solution that is used to remove as well as prevent the accumulation of ice and snow on commercial aircraft, the apparatus being used in de-icing equipment of the type w... | 06/30/1981 |
| 4074025 | Indicating device for storage battery An indicating device for a storage battery comprising: a bar-like body which is transparent, inserted through and held on the upper wall of the electrolytic vessel of a storage battery, has a pointed lower end and is immersed in the electrolyte in the sto... | 02/14/1978 |
| 4037481 | Device for measuring the density of liquids Portable devices for measuring the density of liquids are described. In each of these, a floating element and a reference element are pivotally mounted on a horizontal axis, the floating element being in a casing containing the liquid and having a transpa... | 07/26/1977 |
