...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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 |
| 7000572 | Telescopic baffle for water heater Water heater apparatus for improving the efficiency of a water heater having a tank, a burner, and a flue with the flue being disposed within the tank for evacuation of burn gases therethrough includes an enhancing heat transfer baffle with the baffle having a trunc... | 02/21/2006 |
| 7000573 | Compression ignition engines A method and arrangement of supplying a supplementary fuel (8) to a compression ignition internal combustion engine wherein an air supply (3) to the engine is first caused to pass through a natural vortex creator (1), and a supply of supplementa... | 02/21/2006 |
| 7000574 | Method of operating a cooling-and heating circuit of a motor vehicle, and a cooling-and heating circuit for a motor vehicle A method of operating a cooling and heating circuit of a motor vehicle driven by an internal combustion engine includes providing a first cooling medium path through a bypass conduit, a second cooling medium path through a main cooler of the internal combustion engi... | 02/21/2006 |
| 7000575 | Method and apparatus for reducing fan noise in an electrical generator A method is provided for cooling an engine driven, electrical generator set and for reducing the fan noise associated with operation of the same. The method includes positioning a fan on the first side of the radiator. The temperature adjacent a first side of the ra... | 02/21/2006 |
| 7000576 | Container for liquids A container for liquids is proposed, with a first chamber for a first liquid and an additional chamber for a second liquid. Between these two chambers at least one additional chamber is provided for the mechanically joining together the liquid-filled chambers. This ... | 02/21/2006 |
| 7000577 | Modular engine family A modular family of internal combustion engines is described. The family includes at least three engine configurations selected from a single cylinder, V-type, inline, opposed, W-type, and radial configurations. Each of the engines in the family includes at least on... | 02/21/2006 |
| 7000578 | Control apparatus for variable valve actuation system An ECU calculates a target working angle r, and determines a difference between the target working angle r and the previous value r′ of target working angle as a change rate v to be feedforward controlled. Further, the ECU determines a deviation to be corrected by... | 02/21/2006 |
| 7000579 | Valve system for internal combustion engine A valve system is provided to eliminate a play at connection portions in a valve characteristic varying mechanism and to enhance the accuracy in control of valve operation characteristics. ... | 02/21/2006 |
| 7000580 | Control valves with integrated check valves A spool valve for variable cam timing phaser comprising a spool, a plurality of check valves and passages from the advance chamber and the retard chamber to a port in the spool valve. The spool having at least two lands separated by a central spindle, slidably mount... | 02/21/2006 |
| 7000581 | Mono-shaft four-stroke engine A 4-stroke engine incorporating a mono-shaft multi-valve operating system, the multi-valve operating system incorporating a first cam follower assembly that is associated with an intake valve, a second cam follower assembly that is associated with an exhaust valve, ... | 02/21/2006 |
| 7000582 | Rocker arm The rocker arm 1 has a fitting surface 6 on the opposite sides of which guide surfaces 21 are formed, such that the guide surfaces 21 are inclined to be closer to each other toward their tip ends. Even when the valve stem 20 is dis... | 02/21/2006 |
| 7000583 | Intake apparatus A plurality of transmission ports which are respectively closed by air-permeable members are disposed in at least two members selected from among the intake duct, the air cleaner, and the air cleaner hose in the intake apparatus. Amounts of air permeation of the air... | 02/21/2006 |
| 7000584 | Thermally insulated cylinder liner An engine is provided with a plurality of cylinders and cylinder liners that are shaped to define a plurality of spaces between the liners and the engine block. These spaces provided an insulative barrier that at least partially restricts the flow of heat from the l... | 02/21/2006 |
| 7000585 | Preassembly tool A tool for preassembling with an oil pan a bolt-locating isolator rail and a gasket such that the isolator rail locates a plurality of bolts for securing a flange of the oil pan to an engine block and the gasket forms an oil-tight seal between the flange and the eng... | 02/21/2006 |
| 7000586 | Control device for compression ignition operation of internal combustion engine A controller for an internal combustion engine capable of performing a compression ignition operation. The internal combustion engine includes a combustion chamber, and a fuel injector for injecting fuel directly in the combustion chamber. The controller includes: a... | 02/21/2006 |
| 7000587 | System for changing a selected engine function based on sensed weather conditions A system for modifying or disabling a selected engine function in response to a determination based upon a precipitation sensor input that precipitation is present. The system also may include an ambient temperature sensor that determines whether the ambient tempera... | 02/21/2006 |
| 7000588 | Engine method A method for controlling an engine having both an electronically controlled inlet device, such as an electronic throttle unite, and an electronically controlled outlet device, such as a variable cam timing system is disclosed. The method of the present invention ach... | 02/21/2006 |
| 7000589 | Determining manifold pressure based on engine torque control A torque control system for an engine includes a throttle plate having an adjustable throttle position to regulate a first mass air flow into the engine. A control module determines a first mass air flow into the engine and monitors an engine speed. The control modu... | 02/21/2006 |
| 7000590 | Engine output control system A engine control system and a method of controlling a torque output of an internal combustion engine is disclosed. The engine control system comprises a torque receiving device operably connected to the engine, a sensor to sense an engine parameter, and an electroni... | 02/21/2006 |
| 7000591 | Throttle assembly having deadband linkage An apparatus and method for adjusting a throttle plate of a throttle assembly of an internal combustion engine is disclosed. A throttle linkage mechanically connects a throttle actuator to the throttle assembly with a deadband therebetween. The deadband allows the t... | 02/21/2006 |
| 7000592 | Throttle device for multipurpose engine In a throttle device for a multipurpose internal combustion engine having a throttle valve connected to an electric motor and a carburetor, when an instruction to stop the engine is inputted, the electric motor is controlled to move the throttle valve in a fully clo... | 02/21/2006 |
| 7000593 | Portable handheld work apparatus A portable handheld work apparatus such as a blower or brushcutter or the like has an actuating device for controlling the drive motor of the work apparatus. A throttle lever (2) is provided which acts on the actuating device. A fixing device (35) is p... | 02/21/2006 |
| 7000594 | Electronic control unit for two-cycle internal combustion engine with exhaust control valve An electronic control unit for controlling a fuel injection amount of a two-cycle internal combustion engine with an exhaust control valve wherein the electronic control unit comprises an injection amount determination means for determining the fuel injection amount... | 02/21/2006 |
| 7000595 | Ignition timing control system for light duty combustion engines A control system for a low cost, light duty combustion engine, where the control system generally utilizes engine speed and/or temperature input signals and independent operating sequences to determine a desired ignition timing and air-to-fuel ratio for a combustibl... | 02/21/2006 |
| 7000596 | Method and apparatus for controlling an internal combustion engine using combustion chamber pressure sensing The present method and apparatus employ a signal indicative of cylinder pressure within the combustion chamber of an internal combustion engine to control combustion phasing or start of combustion (SOC) in subsequent cycles of the engine where the engine is driven b... | 02/21/2006 |
| 7000597 | Flat gasket A flat gasket for sealing off a region, especially for sealing off a region bordered by a cylinder head cap, includes an elastic material that effects the sealing function and at least one pass-through region for passing through a conductor such that the conductor c... | 02/21/2006 |
| 7000598 | Bumpless crankshift position sensing Disclosed herein are methods of generating an active crank series of signals that is derived from at least two series of signals, wherein one or both of the series of signals have been modulated to produce two series of signals that resemble each other. Also disclos... | 02/21/2006 |
| 7000599 | Supplemental fuel injector trigger circuit A Supplemental Fuel Injector Control Circuit includes a resistor adapted to connected between a voltage output port and an injector control port of an Engine Control Unit. The circuit also includes a diode having a cathode adapted to be connected to the injector con... | 02/21/2006 |
| 7000600 | Fuel injection control apparatus for internal combustion engine In controlling power supply time, a variation in the fuel injection quantity caused by a variation in the fuel injection rate at the in-cylinder pressure of the engine (detected or estimated value in the running state of the internal combustion engine) relative to t... | 02/21/2006 |
| 7000601 | Supercharger with a planetary gear mechanism A supercharger of an engine comprises a motor/generator, a compressor provided in an air intake system of the engine, and a planetary gear mechanism. The planetary gear mechanism includes a sun gear connected to a driving shaft of the engine, planetary gears connect... | 02/21/2006 |
| 7000602 | Engine system and fuel vapor purging system with cylinder deactivation Various systems and methods are disclosed for carrying out combustion in a fuel-cut operation in some or all of the engine cylinders of a vehicle. Further, various subsystems are considered, such as fuel vapor purging, air-fuel ratio control, engine torque control, ... | 02/21/2006 |
| 7000603 | Rapid lock and load paintball system A magazine chamber that is cooperative with existing self-closing refill pods has two longitudinally extending tracks, the first which engages the pod hinge and the second which engages the thumb tab protruding from the cover. The tracks guide the refill pod into th... | 02/21/2006 |
| 7000604 | Cutting tool A cutting tool, in particular a tile cutting tool, with a base body, which can be clamped into a tool-holding device of a machine tool and driven to rotate, and with a cutting head that is set with cutting particles, and at least the cutting head and the base body a... | 02/21/2006 |
| 7000605 | Engraver apparatus and method A concrete engraver apparatus including a carrier for use with a hand-held engraver. The hand-held engraver is detachably mounted to the carrier. The carrier has wheels and a handle attached to an enclosure. The enclosure includes a vacuum mount for attaching a vacu... | 02/21/2006 |
| 7000606 | Method and apparatus for removing trip hazards in concrete sidewalks An apparatus for cutting a chamfer on an upper edge of a concrete slab includes a hub designed for installation on the threaded output spindle of an angle grinder, and a specially-modified diamond-grit-edged rotary blade which mounts on the hub. For a preferred embo... | 02/21/2006 |
| 7000607 | Gemstone and corresponding method of cutting A gemstone having a crown, a girdle and a pavilion, wherein the girdle is shaped such that, when viewed in plan view, it is primarily bounded by four pairs of parallel straight edges. Three of the four pairs of edges are spaced by roughly equal spacing D1... | 02/21/2006 |
| 7000608 | Solar energy system A solar plant with at least two solar units (10xx) where each of the solar units (10xx) comprises a securing device (12) and a swivel-located supporting structure (14) mounted on it, on which solar modules and/or solar collectors (16 | 02/21/2006 |
| 7000609 | Holding device for a medical breathing tube A retaining device (1) for ventilation tubes (5) has two gripping jaws (2, 3), which can be locked into each other by means of a rack (11). The lower gripping jaw (3) can be attached to a stretcher via a bracket (6). ... | 02/21/2006 |
| 7000610 | High frequency oscillator ventilator A high-frequency oscillator ventilator has a first gas conduit with an opening for gas connection with a patient's airways and a bias gas flow inlet and a bias flow outlet disposed to define therebetween a flow path for a bias gas within the first conduit. An oscill... | 02/21/2006 |
| 7000611 | Mouthpiece, nasal seal, head appliance, apparatus, and methods of treating sleep apnea A CPAP device and a method for treating sleep apnea use a head appliance with an oral adaptor comprising a tube partially inserted in a person's mouth and a diaphragm applied over the tube against the mouth, such that the lips are formed into a tight seal with the t... | 02/21/2006 |