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 |
| 7224565 | Control circuit for driving an electric actuator, in particular an electric fuel injector for an internal-combustion engine A control circuit that drives an electronic actuator. The control circuit includes a direct voltage source, a chopper circuit arranged between the source and an electric actuator, and an electronic control circuit designed to apply to the chopper circuit a command s... | 05/29/2007 |
| 7075144 | Non-volatile memory device The present invention includes a method of fabricating a non-volatile memory device having two transistors for two-bit operations to improve electron trapping efficiency and integration degree of the non-volatile memory device, and a method of driving the non-volati... | 07/11/2006 |
| 7075772 | Electrostatic gripping device An electrostatic gripper for moving wafers includes bipolar electrodes with an insulating layer of zirconium oxide, which are positioned on a circuit board. The gripper is produced by a pressing process and can be operated with a DC voltage of less than 900 V. As a ... | 07/11/2006 |
| 7068481 | Protection device with lockout test The present invention is directed to a protective device that includes a plurality of line terminals configured to be connected to an electrical distribution system, and a plurality of load terminals configured to be connected to at least one load. The device includ... | 06/27/2006 |
| 6922324 | Remote powering of electrostatic chucks Substrates such as silicon wafers, flat panel displays, and hard disk drive head substrates are electrostatically gripped using power derived from a physically separated source. Noncontacting coupling permits operation in vacuum as a result of its efficient energy c... | 07/26/2005 |
| 6771481 | Plasma processing apparatus for processing semiconductor wafer using plasma A plasma processing apparatus comprises: a body that comprises a vacuum processing chamber with a wafer stage on which a semiconductor wafer is held, a plasma producing unit for producing plasma within the vacuum chamber, and a high frequency source for applying a h... | 08/03/2004 |
| 6678182 | Electrical bus with associated porous metal heat sink and method of manufacturing same A module is formed in which semiconductor components are soldered to an electrically conductive heat sink. The electrically conductive heat sink is formed so that it will serve as an electrical bus in an electronic device. The chips of the semiconductor c... | 01/13/2004 |
| 6621703 | Automotive bridge rectifier assembly with thermal protection A rectifier assembly employs a set of diodes to rectify alternating current from an alternator to direct current for use by the electrical system of an automobile. The rectifier includes a plurality of thermal safety disconnects coupled along circuit path... | 09/16/2003 |
| 6178081 | Controller for electric permanent chuck A novel control circuit for magnetizing and demagnetizing an electric permanent chuck includes a single alternating current source with a selected frequency and phase. A circuit that generates electrical pulses is coupled to the alternating current source... | 01/23/2001 |
| 5998944 | Method and apparatus for controlling a lifting magnet of a materials handling machine An apparatus and method for controlling a lifting magnet (12) of a materials handling machine (10) to eliminate arcing between contacts (70-80) within the magnet controller (26) as is well as is large voltage spikes. The controller (26) selectively excite... | 12/07/1999 |
| 5991147 | Electromagnetic chuck with magnetizing/demagnetizing circuit An improved electromagnetic chuck which does not require a continuous direct current supply while being magnetized, including a main body defining a plurality of recesses and forming a cover, which includes a plurality of magnetically conductive portions ... | 11/23/1999 |
| 5977730 | Method and apparatus for controlling the flow of hydraulic fluid A hydraulic circuit (124) is defined in a manifold (130) which may be aluminum, steel, or any other suitable material. The circuit (124) regulates the flow of hydraulic fluid to the hydraulic motor (120) and thus ensures that the motor rotates at an essen... | 11/02/1999 |
| 5959416 | Method and apparatus for controlling a lifting magnet of a materials handling machine An apparatus and method for controlling a lifting magnet (12) of a materials handling machine (10) to eliminate arcing between contacts (70-80) within the magnet controller (26) as well as large voltage spikes. The controller (26) selectively excites the ... | 09/28/1999 |
| 5900062 | Lift pin for dechucking substrates A lift pin 95 for dechucking a substrate 15 held to a chuck 50 by residual electrostatic charge, the substrate being processed in a plasma formed using RF currents, is described. The lift pin 95 comprises (a) a movable elongated member 110 having a tip 11... | 05/04/1999 |
| 5267119 | Electric permanent magnet chuck control Apparatus for demagnetizing and magnetizing a chuck, having circuitry for connection with a 3-phase 4-line AC source, and including a power circuit and a control circuit. The power circuit leads directly from the source to the chuck, without transformers ... | 11/30/1993 |
| 5164878 | Orthopedic pad A resilient and compressible orthopedic pad adapted to be placed in a shoe under the longitudinal and metatarsal arches comprises a flat L-shaped bottom surface adapted to contact the inner sole of the shoe. One longitudinal side is substantially convex f... | 11/17/1992 |
| 5103367 | Electrostatic chuck using A.C. field excitation An electrostatic chuck for semiconductor wafers (10) uses at least three electrodes (12, 13, 14). Two electrodes (13, 14) defining a substantially planar surface and embedded in a thin dielectric film (11), are respectively excited by a low-frequency A.C.... | 04/07/1992 |
| 4843516 | Demagnetizing apparatus and method A chuck and a power transformer having a pair of secondaries for applying continuous unidirectional DC to the chuck. A pair of control transformers each having a pair of secondaries related to respective ones of the power secondaries, for producing opposi... | 06/27/1989 |
| 4771358 | Magnetic chuck controller In the magnetic chuck control disclosed herein, the chuck winding is selectively energized in one direction or the other through respective triggerable semiconductor current switching devices. Successively reducing current levels are applied in successive... | 09/13/1988 |
| 4645218 | Electrostatic chuck An electrostatic chuck for holding a work by electrostatic forces, which has an electrostatic attraction body for attracting the work, an electrostatic conductive support body for supporting the electrostatic attraction body, channels for passing cooling ... | 02/24/1987 |
| 4633361 | Chuck control for a workpiece holding electromagnet An electromagnet control apparatus having a remote control switch assembly switchable between a number of positions representing full, variable, residual and zero levels of magnetization. Means are provided for causing the electromagnet to be fully energi... | 12/30/1986 |
| 4591943 | Apparatus for demagnetizing a chuck Apparatus for controlling the magnetizing and demagnetizing of the chuck in a machine tool, and the workpieces held thereon. A plurality of individual chucks are incorporated in the machine tool, and they are selectively brought into circuit according to ... | 05/27/1986 |
| 4523250 | Magnetic chuck control system Prior art magnetic chuck control systems do not utilize state of the art components and do not sufficiently isolate the power output from control circuits. The instant invention discloses a magnetic chuck control system employing solid state circuitry inc... | 06/11/1985 |
| 4467388 | Electromagnetic chuck power supply and controller An electromagnetic chuck power supply and control comprising a magnetic amplifier consisting of a saturable reactor supplying DC power at its output across the electromagnet coils of the electromagnetic chuck. A controllably variable DC current is supplie... | 08/21/1984 |
| 4426672 | Demagnetizer Continuous demagnetizing for a dial feeder grinder. The grinder has a rotating table, and a plurality of grinding heads for successively grinding workpieces put on the table and carried therepast. The workpieces are held on the table by a magnetic chuck, ... | 01/17/1984 |
| 4402032 | Electromagnet power supply and demagnetizer An electronic current control device for energizing and de-energizing an electromagnet, such as a magnetic chuck, includes a DC power source preferably in the form of a phase-controlled SCR power unit. A conduction angle control signal is routed to positi... | 08/30/1983 |
| 4399482 | Magnetic holder A magnetic holder for releasably retaining a ferromagnetic object, having a core member composed of a semi-hard magnetic material magnetized permanently by an instantaneous capacitor discharge current passing in a first direction through coils wound on th... | 08/16/1983 |
| 4370693 | Demagnetizing apparatus for a workpiece holding electromagnet In the electromagnet control apparatus described herein, demagnetization of the electromagnet and a workpiece held thereby, following a period of holding, is effected by stepwise adjustment of the phase setting of a power control means such as a triggerab... | 01/25/1983 |
| 4354149 | Battery charge system A battery charge system for a transfer magnet (heretofore generally known as a lift magnet) and for a chuck control. In the case of the transfer magnet, the battery provides constant power, while in the case of the chuck control, it serves as a standby po... | 10/12/1982 |
| 4013932 | Apparatus for controlling a magnetic clamp An apparatus is disclosed for controlling a magnetic clamp on a machine tool having a machine slide driven by a feed motor in response to a motor power source. Current supplied to the feed motor by the motor power source is monitored by a magnetic coil co... | 03/22/1977 |
