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Patent No. 5970981

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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Class 323/310 - Controllably saturable


Subclass of Class 323 - Electricity: power supply or regulation systems
Definition: Subject matter wherein the transformer includes a core,
No. of patents: 14
Last issue date: 09/11/2007


NumberTitleIssue Date
7268991Electrical circuit protection system
A system to protect electrical circuits from rapid changes of voltage associated with a fault in an electrical load comprises an inductor placed in series between a drive circuit and load. The inductor is designed to be inefficient or lossy when the inductor core is...
09/11/2007
7015785Inverter transformer and core structure thereof
An inverter transformer and a core structure thereof are described. The core structure of the inverter transformer has a first core and a second core. The first core has a plurality of fork elements, a connection element, and a bottom element. The fork elements are ...
03/21/2006
6384588Method and apparatus for asymmetrically inducing voltages in transformer secondary windings while avoiding saturation of the transformer core
A method for magnetically inducing voltages in the secondary windings of a transformer without saturating its core. The method includes (a) applying to a first primary driven winding a first set of voltages, thereby generating (i) a first current in the f...
05/07/2002
6348782Uninterruptible power supply systems, voltage regulators and operating methods employing controlled ferroresonant transformer circuits
An uninterruptable power supply system for producing an AC voltage from at least one of a DC power source or an AC power source includes an input terminal configured to receive an AC voltage from an AC power source, and an inverter operative to produce an...
02/19/2002
5770982Self isolating high frequency saturable reactor
The present invention discloses a saturable reactor and a method for decoupling the interwinding capacitance from the frequency limitations of the reactor so that the equivalent electrical circuit of the saturable reactor comprises a variable inductor. Th...
06/23/1998
5586019Voltage converter
In the voltage converter, a current flowing through a primary coil of a voltage transformer is turned on/off by FETs, an AC voltage induced at a secondary coil of voltage transformer is rectified and applied to a choke coil including two coils, a saturabl...
12/17/1996
5539300Power supply device
A power supply for an electronic device such as the control circuitry of a thermostat. The power supply has a current transformer with a primary winding in series with the power line that is connected to the heating source, and a secondary winding coupled...
07/23/1996
4544877Power conditioning system and apparatus
Power conditioning apparatus particularly suited for computer facilities and including non-linear input chokes connectable with line power. These chokes are structured having a center leg configured to define a varying gap having a narrowest flux transfer...
10/01/1985
4446405Television receiver ferroresonant load power supply
To regulate a supply voltage for a television receiver load circuit, such as the ultor voltage for a high voltage circuit, the primary winding of a transformer is coupled to a source of alternating input voltage for developing an alternating polarity volt...
05/01/1984
4429260Television receiver power supply ferroresonant load circuit provided with a redundant operating capability
A self-regulating power supply for a television receiver includes a transformer with a primary winding coupled to a source of input voltage for developing an alternating polarity supply voltage across a secondary winding. The supply voltage is stepped up,...
01/31/1984
4353014Television receiver ferroresonant load power supply with reduced saturable reactor circulating current
The primary winding of a high leakage inductance transformer is coupled to a source of alternating input voltage to develop alternating polarity output voltages across tightly coupled secondary windings, including a high voltage winding of the transformer...
10/05/1982
4345188Television receiver high frequency regulated power supply including a low voltage ferroresonant transformer coupled to a step-up high voltage transformer
A source of high frequency alternating input voltage is coupled to the primary winding of a high frequency low voltage ferroresonant transformer of a television receiver power supply. A capacitor is coupled across the secondary output winding of the ferro...
08/17/1982
4243931Current isolator
A current isolator circuit generates an electrically isolated output current which is related to an input current. The current isolator includes a magnetically saturable transformer having a core and first, second, and third windings. The input current fl...
01/06/1981
3935471Current limiting power supply
A power supply for a control system in which a plurality of loads in the form of transducers, sensors and the like are employed. The loads are isolated from each other, the system being such that any load can be shorted without affecting operation of any ...
01/27/1976
 
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