Bizarre Patents
Reward Candy Dispenser for Personal Computers
A personal computer peripheral, battery powered reward candy dispenser which immediately presents students with a single candy for each problem completed correctly.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8166907 | Motor vehicle display instrument having an embracing indicator The invention provides a display instrument, particularly for a motor vehicle, having an indicator that is rotatable about a rotational axis, wherein the indicator has an inner first region that is radial with regard to the rotational axis and that is not visible to... | 05/01/2012 |
| 7730848 | Indicator apparatus The invention relates to an indicator apparatus (1) having a ring pointer (2), which is mounted such that it can move in the circumferential direction (5), and having a drive unit (3), which drives the ring pointer (2) in the circu... | 06/08/2010 |
| 7435890 | Tuning device and method for musical instrument A tuning device includes a pitch extraction device with which the pitch of an input signal is extracted and a deviation detection device with which the deviation of the pitch that has been extracted by the pitch extraction device from a standard pitch is detected. T... | 10/14/2008 |
| 6741184 | Pointer position detection using light emitting diodes An apparatus and method sensing the absolute position of a gauge. A pointer having a predefined rotation with a circular travel pattern. At least one light emitting diode that generates an optical signal. An optical sensor placed in a fixed position along the circul... | 05/25/2004 |
| 5847531 | Process for reducing the strength of an uncontrolled pointer movement A process for reducing the strength of an uncontrolled movement of a pointer driven by a stepper motor and abutting against a mechanical stop means when the stepper motor is switched off. Prior to the switch-off operation, the field strength of the magnet... | 12/08/1998 |
| 5650566 | Pressure gauge showing a current and a preset pressure A pressure gauge includes a base portion on which a cap is mounted, the base portion having a first indicating needle rotatably disposed to a center thereof, a frame disposed to the base portion and having two tubes extending therefrom, two activating bar... | 07/22/1997 |
| 5190643 | Water treatment device having means to count times used and limit useage A lid assembly for a portable water treatment device of the type including a vessel with an opened upper end and a replaceable filter cartridge adapted to be contained therein. A lid assembly is adapted to be attached to the opened upper end of the vessel... | 03/02/1993 |
| 5062135 | Cross coil type indicating gauge An indicating gauge for automobiles for displaying the amount of a measurement on a gauge board by a movement. The movement comprises a pair of coils for generating a combined magnetic field in response to a predetermined measurement amount, a magnet roto... | 10/29/1991 |
| 4646007 | Tachometer indicator with uncompensated magnetic return to zero The zero position in a sine cosine indicator for a tachometer is determined by a projection on the magnetized rotor arranged to encounter a stop projecting from the enclosing bobbin wall. A weak stationary secondary magnet is located adjacent the rotor wi... | 02/24/1987 |
| 4425864 | Rotor for electromagnetic indicator A rotor for an electromagnetic indicator comprises a flat circular disk made of thin, pliable, nonmagnetic material. The disk has integral tabs extending out of diametrically opposite edges and a rib extends diametrically of the disk to outer ends of the ... | 01/17/1984 |
| 3967578 | Moisture gauge for a hanging potted plant A moisture gauge for a hanging potted plant, which comprises a generally U-shaped spring element comprising a spring coil and a pair of approximately parallel arms extending from said spring coil shaped to provide notches opposite one-another at spaced in... | 07/06/1976 |
