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Patent No. 5421089

Fork With Timer

A fork with timer for providing a cue to a user after an elapsed period of time for indicating that another bite of food using the fork may be taken.

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Class 244/23A - Lifting thrusters


Subclass of Class 244 - Aeronautics and astronautics
No. of patents: 54
Last issue date: 05/01/2012


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NumberTitleIssue Date
8167235Whirling wheel airborne vehicles
A sliding-arm whirling wheel thruster includes first and second whirling wheels and a housing. The first whirling wheel is disposed about a first rotational axis, and the second whirling wheel about a second rotational axis parallel to the first rotational axis. The...
05/01/2012
8128019Hybrid power for ducted fan unmanned aerial systems
A propulsion system for a vertical take-off and landing ducted fan aerial vehicle is provided, the propulsion system comprising an internal combustion engine, an electric motor that comprises a motor generator, a motor drive and a battery. The motor drive and batter...
03/06/2012
8066220Aircraft engine balanced thrust vectoring system
A balanced thrust vectoring system for an aircraft designed to provide even weight distribution, simple thrust vectoring, and hover stability. The system includes a main diverter that connects to a jet output port. Located inside the diverter is a 4 way splitter tha...
11/29/2011
8038091Fan control apparatus
When a FADEC detects an abnormality in any of engine+compressor combinations, a FCC controls the amount of air for driving the fan to a level that is lower than that before the abnormality has been detected, until a state is assumed in which the normally operating e...
10/18/2011
8016226Vertical take off and landing aircraft system with energy recapture technology
A fuselage has laterally extending wing-like structures. The wing-like structures have an aperture. A can is positioned in the aperture. The can has an axle. The axle rotatably couples the can to the aperture. The can has an upper cylindrical section and a lower rec...
09/13/2011
7918416Ducted fan vehicles particularly useful as VTOL aircraft
A vehicle, including a vehicle frame, a duct carried by the vehicle frame with the longitudinal axis of the duct perpendicular to the longitudinal axis of the vehicle frame, a propeller rotatably mounted within the duct about the longitudinal axis of the duct to for...
04/05/2011
7806362Ducted fan VTOL vehicles
A vehicle including a fuselage having a longitudinal axis and a transverse axis, two Ducted Fan lift-producing propellers carried by the fuselage on each side of the transverse axis, and a body formed in the fuselage between the lift-producing propellers. Many varia...
10/05/2010
7568655Vertical takeoff and landing aircraft
A vertical takeoff and landing aircraft according to the invention includes multiple thrust producing devices that produce thrusts applied in the substantially vertically upward direction; a target attitude setting portion that sets a target attitude used in attitud...
08/04/2009
7427048Linear acoustic pulsejet
A linear acoustic pulsejet (LAP) including a body having a first side panel and an opposing substantially parallel second side panel. A plurality of substantially parallel intercostals are orthogonally connected to each of the first and second side panels to create ...
09/23/2008
7364115System and method for controlling engine RPM of a ducted fan aircraft
An aircraft including a ducted fan and an engine for driving the ducted fan includes a plurality of vanes movably mounted to the aircraft at a substantially rectangular exhaust end of the aircraft. Each of the plurality of vanes is substantially rectangular or squar...
04/29/2008
7339340Control system and related method for multi-limbed, multi-legged robot
A robot body includes a front half and rear half and a rotatable and driven articulating joint interconnecting the front half and rear half. Multi-limbed legs extend from the robot body and are adapted to engage a ground surface to form a support polygon for each ha...
03/04/2008
7327112Multiple leg tumbling robot
A robot or vehicle locomotes by tumbling. Legs distributed over the surface of the robot individually extend or retract. A control system coordinates the action of the legs to cause the robot to tumble in any direction. A robot using this form of locomotion is highl...
02/05/2008
7275712Ducted fan vehicles particularly useful as VTOL aircraft
A vehicle, including a vehicle frame, a duct carried by the vehicle frame with the longitudinal axis of the duct perpendicular to the longitudinal axis of the vehicle frame, a propeller rotatably mounted within the duct about the longitudinal axis of the duct to for...
10/02/2007
7267300Aircraft capable of vertical and short take-off and landing
Aircraft comprising an airframe having a forward end, an aft end opposite the forward end, a top extending between the forward end and the aft end, and a bottom opposite the top side. The aircraft further includes a power plant mounted on the airframe. In addition, ...
09/11/2007
7267299Aircraft
An aircraft includes a fuselage with a circular airfoil body supported thereabove on a vertical drive shaft mechanism. The airfoil body includes an upper disk forming an upper surface of the body and a lower disk forming a lower surface of the body in which the uppe...
09/11/2007
7249732Aerodynamically stable, VTOL aircraft
A hover aircraft employs an air impeller engine having an air channel duct and a rotor with outer ends of its blades fixed to an annular impeller disk that is driven by magnetic induction elements arrayed in the air channel duct. The air-impeller engine is arranged ...
07/31/2007
7204672Multi-modal forced vortex device
A multi-modal forced vortex device is described having a top plate and a side wall creating a partially enclosed volume. The top plate includes one or more adjustable fluid openings to permit, or restrict, fluid flow into and out of the partially enclosed volume. Ro...
04/17/2007
7201346Circular fixed wing VTOL aircraft
A VTOL aircraft includes a wing, a propulsion system, and an air dam. The propulsion system is located in a central void formed in the wing to cause air flow from an outer perimeter of the wing over the wing and down through the void to generate lift. The air dam is...
04/10/2007
7143973Avia tilting-rotor convertiplane
The present invention provides a tilt rotor aircraft having a centrally mounted tiltable engine and rotor assembly. A turbine or other type of engine (or engines) is pivotally mounted on a central frame above and between the pilot and co-pilot, who occupy separate a...
12/05/2006
7051826Surface effect skimmer
A surface effects skimmer vehicle generates a downward air flow into a tunnel under a main hull to lift the main hull off an adjacent surface, and rearward air flows for thrust. The air flows are generated by ducted fans or jet engines, and directed to the rear and/...
05/30/2006
7032861Quiet vertical takeoff and landing aircraft using ducted, magnetic induction air-impeller rotors
A hover aircraft employs an air impeller engine having an air channel duct and a rotor with outer ends of its blades fixed to an annular impeller disk that is driven by magnetic induction elements arrayed in the air channel duct. The air-impeller engine is arranged ...
04/25/2006
6976654Vertical takeoff and landing aircraft
A flight capable mobile platform adapted for covert deployment is provided. The mobile platform is additionally adapted to have a reduced vulnerability to hostile detection and aggression. The mobile platform includes a fuselage having a pair of sidewalls and a bott...
12/20/2005
6969027Vertical takeoff and landing apparatus
A vertical takeoff and landing apparatus is excellent in the maneuverability and postural stability of its airframe, serves to protect a pilot from an impact when landing, and can make extremely stable flight when hovering near a building. An airframe has a propulsi...
11/29/2005
6926231Vertical takeoff and landing aircraft
A method is provided for reducing vulnerability to hostile detection of and aggression towards an aircraft. The method includes adapting an aircraft fuselage to form an armored payload bay, wherein the armored payload bay includes a pair of sidewalls and a bottom. T...
08/09/2005
6892980Vertical takeoff and landing aircraft
A vertical takeoff and landing (VTOL) aircraft is superior in maneuverability, safety, and mobility. The aircraft has turbofan engines with separate core engines having fan engines used commonly for cruising and lifting up. The thrust from the fan engines can be dir...
05/17/2005
6843447Vertical take-off and landing aircraft
A vertical take-off and landing aircraft includes a fuselage, a left wing, a right wing, at least one forward thruster, a horizontal stabilizer and a vertical stabilizer. The left and right wings extend from substantially a middle of the fuselage on left and right s...
01/18/2005
6824094Power assembly for ornicopter
An ornithopter has a power assembly which provides flapping of the wings by a reciprocating shaft and bell cranks. The wings are mounted on a hub which rotates in response to the flapping of the wings. The sinusoidal movement of the wings provides lift for flight.
11/30/2004
6824097Vertical takeoff and landing aircraft
An aircraft adapted for covert deployment and having low vulnerability to hostile detection and aggression is provided. The aircraft includes a fuselage having a pair of sidewalls and a bottom. The sidewalls and bottom form an armored payload bay. The aircraft addit...
11/30/2004
6817570Ducted fan vehicles particularly useful as VTOL aircraft
A vehicle, including a vehicle frame, a duct carried by the vehicle frame with the longitudinal axis of the duct perpendicular to the longitudinal axis of the vehicle frame, a propeller rotatably mounted within the duct about the longitudinal axis of the duct to for...
11/16/2004
6793174Pulsejet augmentor powered VTOL aircraft
A vertical take-off and landing (VTOL) aircraft includes separate axial and vertical propulsion sources. The vertical propulsion source includes pulsejet engines located in separate augmentor bays having apertured walls to equalize pulsejet thrust. The pulsejet engi...
09/21/2004
6708920Air vehicle
Disclosed is an air vehicle (Z) comprising a vehicle body (1); hollow fan ducts (3A-3D) supported to and elongating through the vehicle body at least at its foreside and rear-side locations, respectively. Each fan duct communicates with air at t...
03/23/2004
6648270Vehicle
A vehicle is disclosed having a hull with a longitudinal, vertical and lateral axis, the hull further having front end and rear ends and first and second sides. A turbofan engine mounted in said hull, said engine having an exhaust duct. First and second f...
11/18/2003
6588701Unmanned mobile device
A remotely-controlled unmanned mobile device (UMD) adapted to function as a robot scout to enter and reconnoiter the site of a disaster and to communicate to a rescue mission information regarding conditions prevailing at the site, making it possible for ...
07/08/2003
6568635Apparatus and method for flight control of an aircraft
An apparatus and method for flight control of an aircraft provides a body with adjustable intake ports ducting air into an internal intake manifold. Adjusting the openings of the intake ports changes the amount of air flowing over the surfaces surrounding...
05/27/2003
6565038Supersonic propellers for aircrafts
The present invention provides one pair or two pairs of horizontal propellers incorporated on the two opposite sides of an aircraft, which propellers by their rotating external blades create through their frontal shell opening a very strong frontal depres...
05/20/2003
6502787Convertible vertical take-off and landing miniature aerial vehicle
A vertical take-off and landing miniature aerial vehicle includes an upper fuselage segment and a lower fuselage segment that extend in opposite directions from a rotor guard assembly. A rotor rotates within the rotor guard assembly between the fuselage s...
01/07/2003
6457670Counter rotating ducted fan flying vehicle
A flying vehicle having a pair of counter rotating propeller blades which provide lift for the vehicle when the vehicle is in a flight mode of operation. The counter rotating blades have in flight adjustable pitch and are connected to a control and steeri...
10/01/2002
6450445Stabilizing control apparatus for robtic or remotely controlled flying platform
A robotic or remotely controlled flying platform (10) with reduced drag stabilizing control apparatus constructed having an air duct (12) with an air intake (14) on the top and an exhaust (16) at the bottom, containing supported therein a clockwise rotati...
09/17/2002
6404089Electrodynamic field generator
This device is a brushless high-voltage electrical generator, requiring suitable means of input rotary torque, for purposes of producing a very-high-energy external electrodynamic field or continuous quasi-coherent DC corona or arc discharge of uniform cu...
06/11/2002
6382559Thrust vectoring mechanism
A thrust vectoring mechanism to vector thrust and control discharge throat area includes four or more vanes mounted across the outlet of a nozzle in a cascade arrangement. The mechanism further includes a rod to control pivoting of each of the vanes that ...
05/07/2002
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