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 |
| 4333977 | Wear-resistant article A wear-resistant and chemically-inert article made from a sintered mixture of polytetrafluoroethylene, graphite fibers, and fluorinated graphite.... | 06/08/1982 |
| 4289975 | Dissipating electrical charge In circuitry in which a digital circuit samples the output of an analog circuit, the improvement of using, during an interval prior to sampling, a solid-state switching element to dissipate the charge stored in a charge storage element (e.g., capacitor) i... | 09/15/1981 |
| 4286873 | Refractometer cell with integral lens A fused glass refractometer cell is disclosed in which a lens is formed by the front surface of the cell and a reflective surface is applied to the rear surface of the cell. Means are provided to limit the passage of light through the cell to the central ... | 09/01/1981 |
| 4284352 | Heat exchanger for refractometer Apparatus for measuring changes in a physical property of a flowing fluid, including a cell through which the fluid flows, the cell having an inlet and an outlet, an inlet tube connected to the inlet of the cell, for delivering the flowing fluid to the ce... | 08/18/1981 |
| 4283140 | Spatially homogenizing optical modulator Apparatus of the type including a light source directing a light beam through a measurement zone to a detector, wherein movement of the beam in a measurement direction with respect to the detector gives an indication of the measurement made in the zone, t... | 08/11/1981 |
| 4281687 | Fluid storage device A pump for precise, smooth delivery of liquid, particularly in liquid chromatography systems, featuring two liquid displacement elements mounted for reciprocating movement in chambers connected in series with two check valves, one displacement element ser... | 08/04/1981 |
| 4276475 | Novel photometric system Novel photometric apparatus advantageously having a conical shaped flow-cell comprising a light source proximate the narrow end and a photosensitive detector at the wider end of the cell. The flow-cell adequately compensates for a lens effect that has bee... | 06/30/1981 |
| 4265536 | Electrical zeroing of light beam Apparatus for measuring deflection of a light beam by sensing the beam with means providing two optical measurements, and providing an electrical output dependent upon the difference between the two measurements, with the instantaneous magnitude of each m... | 05/05/1981 |
| 4250035 | Radial compression of packed beds Improved liquid chromatographic apparatus and an improved process for making and utilizing a chromatographic column. By providing means to exert radial pressure on the column packing, the packing efficiency of the column is increased and is more reproduci... | 02/10/1981 |
| 4245963 | Pump A pump for precise, smooth delivery of liquid, particularly in liquid chromatography systems, featuring two liquid displacement elements mounted for reciprocating movement in chambers connected in series with two check valves, one displacement element ser... | 01/20/1981 |
| 4228007 | Chromatographic cartridge and holder A chromatography cartridge stabilized by radial compression is disclosed with integral distributors each composed of two abutting thin plates, one with generally radial slits and the other with radially-displaced apertures. Also disclosed are a replaceabl... | 10/14/1980 |
| 4211658 | Triaxially compressed packed beds A cartridge is disclosed which comprises a volume of particulate packing material through which a fluid is to flow, a piece of solid porous material adjacent to the surface of the packing material though which the fluid is to enter the volume and a second... | 07/08/1980 |
| 4153076 | Pneumatic valve apparatus A pneumatic valve apparatus comprises a cylindrical structure having opposite, outwardly facing faces. A plurality of two-position valves are located in the structure at regular angular intervals at positions about the axis of the cylindrical structure. T... | 05/08/1979 |
| 4094195 | Novel seal and apparatus including same An automatic liquid sample-injecting apparatus using a conduit such as a hypodermic needle or pipette to suck liquid from a sample source and transfer it to an injector valve apparatus. The apparatus utilizes the optimum embodiment of the apparatus being ... | 06/13/1978 |
| 4094641 | Low loss sample bottle assembly Low loss sample bottle assembly from which very small quantities of liquid can be removed safely, automatically and very nearly completely. The assembly comprises a spring mounted bottle having a small bottom compartment shaped to receive a needle and so ... | 06/13/1978 |
| 4094196 | Sample injection with automatic cleaning of sampling conduit An automatic liquid sample-injecting apparatus using a conduit such as a hypodermic needle or pipette to suck liquid from a sample source and transfer it to an injector valve apparatus. The apparatus utilizes the optimum embodiment of the apparatus being ... | 06/13/1978 |
| 4070004 | Diaphragm valve An improved diaphragm valve, particularly adapted for applications at high pressures and in applications in which low dead volume is required. The valve has a diaphragm which is formed of a halogenated hydrocarbon polymer of a compression strength suffici... | 01/24/1978 |
| 4070285 | Chromatography tube A column for use in liquid chromatographic processes wherein the column is formed with an external reinforcing sleeve that has been found to contribute dimensional stability which results in surprising and important advantages in improving chromatographic... | 01/24/1978 |
| 4042327 | Ion-pairing chromatography Liquid chromatographic processing of compositions containing ionizable compounds. The chromatographic column is formed of a stationary packing having a chemical group chemically bonded thereto and a counter ion is added to the polar mobile liquid. The cou... | 08/16/1977 |
| 4026803 | Chromatographic column with improved end fittings Novel end fitting assemblies of particular advantage for use on liquid chromatographic columns, and novel chromatographic columns comprising these novel end fittings. The end-fittings are characterized by (a) very low dead space; (b) economical and conven... | 05/31/1977 |
