William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 7368002 | Ionic air conditioning system The air conditioning system includes a housing having a vent portion and an ion generating unit positioned in the housing. The ion generating unit includes a first electrode, at least one second electrode, and a voltage generator that provides a constant potential d... | 05/06/2008 |
| 7332847 | Electret actuator An electret actuator comprising a fixed substrate having driving electrodes of a plurality of phases arranged therein, a movable element arranged on the fixed substrate and made electret in similar polarity at predetermined pitches in portions which face the driving... | 02/19/2008 |
| 7332020 | Gas treating device A gas treating device capable of electrically collecting dust and of decomposing odors and other matter by plasma includes a plasma generating device integrally incorporated into an ionization part in a casing. The ionization part has an ionization line and a column... | 02/19/2008 |
| 7325931 | Projection type video display An ion wind generator is provided at the back of a light source. The ion wind generator negatively ionizes air by corona discharges using negative-side needle electrodes and draws the negatively-ionized air to a ground-side mesh electrode to allow an airflow to be o... | 02/05/2008 |
| 7311762 | Air conditioner device with a removable driver electrode An air-conditioning device including a housing having at least one grill, an electrode assembly and a driver electrode. Both the electrode assembly and the driver electrode are supported by the housing. The electrode assembly includes a portion that is removable fro... | 12/25/2007 |
| 7244290 | Electrostatic room air cleaner An electrostatic room air cleaner includes a housing having a given profile and a plurality of electrostatic precipitation collector units arrayed in the housing with a common fan to circulate room air through the plurality of electrostatic precipitation collector u... | 07/17/2007 |
| 7241330 | Air cleaner electrostatic precipitator cell An electrostatic precipitator cell is provided according to an embodiment of the invention. The electrostatic precipitator cell includes a connection rod including first and second ends, a length, a cross-sectional shape, and a lengthwise surface. The electrostatic ... | 07/10/2007 |
| 7230201 | Apparatus and methods for controlling charged particles Among the embodiments of the present invention, are apparatus, systems, and methods for managing energetic charged particles emitted nearly isotropically from a fusion device. One apparatus of the present invention includes a fusion device in a container and an elec... | 06/12/2007 |
| 7163572 | Air purifier An air purifier for removing particles in air includes an outer casing, and an ionizer module. The ionizer module includes a power unit and an ionizing electrode unit, electrically connected to the power unit. The ionizing electrode unit includes a first electrode s... | 01/16/2007 |
| 7135804 | Micro-mirror with rotor structure A micro-mirror device includes a stator structure having a set of radial stator electrodes, a rotor structure having a set of radial rotor electrodes, a mirror mounted on the rotor structure, and a flexure structure suspending the rotor structure relative to the sta... | 11/14/2006 |
| 7112911 | Vibrational power generation device vibrator Unnecessary moment in a vibrator is remarkably reduced and the power generation efficiency in capacitance-type vibrational power generation is remarkably improved. A vibrator provided in a variable-capacitance type vibrator has a structure in that one ends of oscill... | 09/26/2006 |
| 7108056 | Slit-type restrictor for controlling flow delivery to electrohydrodynamic thin film evaporator Cooling means for a heated surface comprising an enclosure for enclosing the heated surface and two oppositely charged interleaved radial arrays of microelectrodes positioned on the surface within the enclosure. The combined arrays have a closely spaced end and a pe... | 09/19/2006 |
| 7105758 | Switch A switch that is capable of responding at a high rate at a lower DC potential while providing high isolation. In this switch, a microstructure group, having microstructures, is used. By slightly moving the microstructures a small amount the group, as a whole, achiev... | 09/12/2006 |
| 7104056 | Design of ferromagnetic shape memory alloy composites and actuators incorporating such materials The present invention employs an optimized cross-sectional shape for a ferromagnetic shape memory alloy (FSMA) composite that is used in a spring-type actuator, an improved hybrid magnetic trigger for use in FSMA based actuators, an a FSMA composite based spring typ... | 09/12/2006 |
| 7086535 | Particle separation/purification system, diffuser and related methods A separator for intended use in separating particles having a selected charge from a particle mixture entrained in or carried by a fluid flow is disclosed. The separator comprises a tubular, elongated body for receiving the fluid flow. At least one and preferably a ... | 08/08/2006 |
| 7053565 | Electrostatic fluid accelerator for and a method of controlling fluid flow An electrostatic fluid acceleration and method of operation thereof includes at least two synchronously powered stages with final or rear-most electrodes of one stage maintained at substantially the same instantaneous voltage as the immediately adjacent initial or f... | 05/30/2006 |
| 7053519 | Electrostatic bimorph actuator An electrostatic bimorph actuator includes a cantilevered flexible bimorph arm that is secured and insulated at one end to a planar substrate. In an electrostatically activated state the bimorph arm is generally parallel to the planar substrate. In a relaxed state, ... | 05/30/2006 |
| 7014686 | Electrostatic air cleaner An air cleaner electrode assembly includes an elongated collector electrode and a plurality of elongated discharge electrodes arranged around the collector electrode. A fan may move air in a direction parallel to a length of the electrodes. The collector electrode m... | 03/21/2006 |
| 6978537 | Method of transferring electric charge using a micrometer-scaled device A charged species source and a charged species drain are provided. A moveable component is positioned proximate to the charged species source and the charged species drain. A first protrusion and a second protrusion are provided in contact with the moveable componen... | 12/27/2005 |
| 6974560 | Electro-kinetic air transporter and conditioner device with enhanced anti-microorganism capability An electro-kinetic air conditioner for removing particulates from the air creates an airflow using no moving parts. The airflow is subjected to UV radiation from a germicidal lamp within the device. The conditioner includes an ion generator that has an electrode ass... | 12/13/2005 |
| 6958134 | Electro-kinetic air transporter-conditioner devices with an upstream focus electrode An electro-kinetic air conditioner for removing particulates from the air creates an airflow using no moving parts. The conditioner includes an ion generator that has an electrode assembly including a first array of emitter electrodes, a second array of collector el... | 10/25/2005 |
| 6953556 | Air conditioner devices An air conditioner includes an ion generator that provides ions and safe amounts of ozone. The ion generator includes a high voltage generator that provides a voltage potential difference between first and second electrode arrays. At least one of the first and secon... | 10/11/2005 |
| 6946103 | Air purifier with electrode assembly insertion lock An air purifier device with an electrode assembly insertion lock comprises a housing, a removable electrode assembly, and a gravity-operated lock which prevents the removable electrode assembly from being inserted into the housing while the housing is in a vertical ... | 09/20/2005 |
| 6911186 | Electro-kinetic air transporter and conditioner device with enhanced housing configuration and enhanced anti-microorganism capability An electro-kinetic air conditioner for removing particulates from the air creates an airflow using no moving parts. The airflow is subjected to UV radiation from a germicidal lamp within the device. The conditioner includes an ion generator that has an electrode ass... | 06/28/2005 |
| 6908501 | Electrode self-cleaning mechanism for air conditioner devices An air conditioner with a cleaning member having an opening, through which a wire-like electrode passes. The member is moved along the wire to frictionally clean the wire-like electrode when a collector electrode array is moved. A lifting arm is mounted to the colle... | 06/21/2005 |
| 6833344 | Fabric treatment compositions comprising different silicones, a process for preparing them and a method for using them The present invention relates to fabric treatment compositions comprising at least one or more cationic silicone polymers, comprising one or more polysiloxane units and one or more quaternary nitrogen moieties, and an nitrogen-free silicone polymer wherein the ratio... | 12/21/2004 |
| 6727657 | Electrostatic fluid accelerator for and a method of controlling fluid flow An electrostatic fluid acceleration and method of operation thereof includes at least two synchronously powered stages. A single power supply or synchronized and phase controlled power supplies provide high voltage power to each of the stages such that both the phas... | 04/27/2004 |
| 6713668 | Solar energy converter and solar energy conversion system A solar energy converter includes: a light-concentrating instrument; an electron emitter in an insulated vacuum vessel, emitting electrons in a vacuum as a temperature rises by sunlight; an electron accelerator within the light-concentrating instrument; a cathode on... | 03/30/2004 |
| 6687034 | Active tuning of a torsional resonant structure A MEM s scanning device has a variable resonant frequency. In one embodiment, the MEMs device includes a flexible arm that extends from a oscillatory body. An electrical field applies a force to the flexible arm, thereby bending the flexible arm to shift ... | 02/03/2004 |
| 6657360 | Micromechanical device A rotary electrostatic microactuator that includes a substantially planar substrate and a rotatable member overlying the substrate for rotation about an axis of rotation extending perpendicular to the planar substrate. First and second spaced-apart spring... | 12/02/2003 |
| 6653547 | Solar energy converter The solar energy converter comprises an electron emitter and an electron collector. They are provided separate from each other in a vacuum vessel. Solar energy in a wide range of sunlight spectrum can be efficiently converted into electric energy by movin... | 11/25/2003 |
| 6625342 | Systems and methods for overcoming stiction using a lever A microstructure is provided including a base layer underlying a first and second structural plates. Operation of the microstructure is capable of overcoming stiction. Methods of operation include providing an edge of the first structural plate in contact... | 09/23/2003 |
| 6512622 | Active tuning of a torsional resonant structure A MEMs scanning device has a variable resonant frequency. In one embodiment, the MEMs device includes a flexible arm that extends from a oscillatory body. An electrical field applies a force to the flexible arm, thereby bending the flexible arm to shift t... | 01/28/2003 |
| 6256131 | Active tuning of a torsional resonant structure A MEMs scanning device has a variable resonant frequency. In one embodiment, the MEMs device includes a flexible arm that extends from a oscillatory body. An electrical field applies a force to the flexible arm, thereby bending the flexible arm to shift t... | 07/03/2001 |
| 6163098 | Electro-kinetic air refreshener-conditioner with optional night light An electro-kinetic electro-static air conditioner includes a self-contained ion generator that provides electro-kinetically moved air with ions and safe amounts of ozone. The conditioner may be sized to condition air in a closet, or may include an illumin... | 12/19/2000 |
| 6140737 | Apparatus and method for charge neutral micro-machine control An electrostatic actuator and a method for actuating a micro-machine structure. The micro-machine structure has a stationary part and a movable part that is relatively movable between a rest position and an activated position and is resiliently connected ... | 10/31/2000 |
| 6028375 | Energy converter An MHD generator system is provided to perform efficient MHD generation by efficiently converting heat enargy into kinetic energy of an electricity conducting liquid or liquid metal. Thermal flow flux is controlled by providing heat pipes having the funct... | 02/22/2000 |
| 5959376 | Microelectromechanical reciprocating-tooth indexing apparatus An indexing apparatus is disclosed that can be used to rotate a gear or move a rack in a precise, controllable manner. The indexing apparatus, based on a reciprocating shuttle driven by one or more actuators, can be formed either as a micromachine, or as ... | 09/28/1999 |
| 5955818 | Machine structures fabricated of multiple microstructure layers Machine structures each comprising a stack of a plurality of micromachine layers laminated together are presented, along with fabrication methods therefore. Each machine structure includes a movable member(s) defined from microstructure of at least one la... | 09/21/1999 |
| 5909069 | Fully integrated magnetic micromotors and methods for their fabrication A planar fully integrated variable reluctance micromotor (10) is microfabricated on a substrate base (18). The micromotor includes a pin (19), rotor (12) with radially extending poles (16), and a stator (20) having a plurality of poles (21) configured in ... | 06/01/1999 |