Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
PatentStorm News
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 |
| 5056489 | Fuel rail for V-type engine A fuel rail for an engine fuel injection system comprises a pair of main tubes on opposite sides of the engine. A baffle is disposed within each main tube, dividing the tube into first and second flow channels. Injectors are fed from the first flow channe... | 10/15/1991 |
| 5006421 | Metalization systems for heater/sensor elements Device comprising a substrate and a metallized sensor/heater element having a temperature coefficient of resistance of at least 2000 parts per million. Methods of fabricating the devices are also disclosed.... | 04/09/1991 |
| 5002030 | Fuel rail assemblies for internal combustion engines Fuel rail assemblies include a tubular fuel rail for supplying fuel to a fuel injector of an internal combustion engine. Rigid conduits are coupled to the fuel rail so as to allow relative rotational movements therebetween and thus permit, during producti... | 03/26/1991 |
| 5000039 | Mass air flow integrator Apparatus and method for integrating mass air flow for a specified cylinder event in the intake tract of an internal combustion engine. The respective outputs of a mass air flow sensor and a directional air flow sensor are used to determine an accurate ne... | 03/19/1991 |
| 4991557 | Self-attaching electromagnetic fuel injector An electromagnetic fuel injector has an attaching clip that is integrally formed with the non-metallic electrical insulating material that is molded to surround the electrical terminals of the injector solenoid. The clip is resiliently pivotable on the in... | 02/12/1991 |
| 4991556 | Automotive fuel rail assemblies with integral means for mounting fuel regulator Fuel rail assemblies for supplying fuel to injectors of internal combustion engines include mounting structure to integrally mount a fuel pressure regulator. An annular chamber, in fluid communication with the fuel passageway of the fuel rail, is defined ... | 02/12/1991 |
| 4987863 | Variable compression ratio internal combustion engine A variable compression ratio internal combustion engine having at least one cylinder, a piston disposed in the cylinder and a cylinder head disposed at one end of the cylinder. The cylinder head has a combustion chamber and a piston chamber contiguous wit... | 01/29/1991 |
| 4972996 | Dual lift electromagnetic fuel injector The dynamic range of an electromagnetic fuel injector is extended by means of a second solenoid coil that controls the position of a stop for the reciprocating armature that is operated by the usual solenoid coil.... | 11/27/1990 |
| 4971254 | Thin orifice swirl injector nozzle The nozzle of a fuel injector is constructed to have a seat member and a single thin disc orifice member. A guide member affixed to the seat member guides the injector needle toward the seat in the seat member as the needle is reciprocated within the inje... | 11/20/1990 |
| 4967959 | Fuel injector having flat seat and needle fuel seal An electromagnetic fuel injector has a raised seat with which the needle tip coacts to open and close the injector as the injector is operated. The raised seat has an annular transverse seating surface surrounding a hole through the seat member. The hole ... | 11/06/1990 |
| 4965517 | Flux concentrator for magnetic sensors A wheel speed sensor comprises a Hall device disposed in a pocket in a cavity of a plastic housing. The cavity is filled with potting compound to capture and enclose the Hall device. Flux issued from a magnet that rotates with the wheel acts upon the Hall... | 10/23/1990 |
| 4958430 | Manufacturing process for manufacturing thin edge orifice disks for fuel injectors A thin edge orifice disk is defined as a disk having a thickness to main dimension or diameter ratio of at least 1:80. The manufacturing of an accurately sized orifice in the disk is accomplished by means of a progressive die. One of the stations of the d... | 09/25/1990 |
| 4955230 | Elimination of turbulence for silicon micromachined airflow sensor The sensor comprises a silicon sensing element on a ceramic substrate. A slot is provided in the substrate just ahead of the leading edge of the silicon so that some of the airflow that is flowing toward the leading edge surface of the silicon passes thro... | 09/11/1990 |
| 4949904 | Calibration of fuel injectors via permeability adjustment An electromagnetic fuel injector is calibrated for dynamic flow by creating a blind hole in a stationary pole piece passing through the solenoid coil. The blind hole can be created by drilling, or by partially filling a pre-existing hole.... | 08/21/1990 |
| 4945878 | Extended over temperature operation and controls for ic engine In the event of coolant loss leading to engine overheating, the operating range of an automobile engine can be extended by limiting the engine load signal that is supplied to the engine E.C.U. A circuit for implementing this feature is disclosed.... | 08/07/1990 |
| 4944269 | Accelerating pedal for electronic throttle actuation system Improvements for imparting hysteresis, or dampening, to the shaft of a pedal assembly for an electronic throttle actuation system so that the feel of the pedal simulates the feel of a strictly mechanical system. Pads are resiliently urged against a disk i... | 07/31/1990 |
| 4938451 | Method for controlling solenoid de-energized air gap The amount of protrusion of an end of a standard length push pin from a stationary part of a solenoid-actuated valve is measured at a certain point in the valve fabrication process. Then before the armature is assembled into the valve, a depression whose ... | 07/03/1990 |
| 4938061 | Current controlled electronic circuit for a hot wire air flow meter A current controlled electronic circuit for a hot wire air flow meter having a symmetrical bridge circuit to measure the mass of the airflow. The present current bridge arrangement requires very few adjustments to select a few resistors for obtaining a re... | 07/03/1990 |
| 4938909 | Flash-free molding of I.C. engine passages A method of making a molded plastic component of an internal combustion engine. The method is for making a fuel rail and includes constructing particular core pins of the mold with threaded connections that form seals between them when they are disposed i... | 07/03/1990 |
| 4934653 | Multi-stream thin edge orifice disks for valves A dual stream thin edge orifice disk is defined as a disk having a pair of orifices positioned to direct the flow of fluid from the interior portion of a valve into two different streams. The dual streams may be parallel or typically diverge at an angle f... | 06/19/1990 |
| 4934190 | Silicon-based sensors A silicon-based sensor includes a substrate, a sensor element, and a protective diaphragm mounting and covering the sensor element. The diaphragm is a silicon layer which, in a preferred embodiment, includes an etch-stop dopant. The etch-stop layer is sea... | 06/19/1990 |
| 4932245 | Magnetic ring mounting fixture A vehicle wheel speed sensing system comprises a magnetic ring mounted on the wheel hub and a sensor mounted on the spindle. The magnetic ring is polarized at regular circumferential intervals so that as the hub rotates on the spindle, magnetic impulses a... | 06/12/1990 |
| 4930465 | Solenoid control of engine valves with accumulator pressure recovery A system for accomplishing solenoid control of engine valves places a soldnoid valve between an oil gallery and the lost-motion actuator for each valve. Although the basic phasing for the valves is established by a camshaft, the actual phasing is accompli... | 06/05/1990 |
| 4929879 | Microstepping of an unipolar stepping motor High resolution microstepping of an unipolar stepping motor 18 is accomplished by applying from a look-up table the values of the SINE and COSINE of a given angle to the control circuit of a unipolar stepping motor. The difference between the present posi... | 05/29/1990 |
| 4928640 | Autocalibration of camshaft phasing feedback in a variable valve timing system Autocalibration of the camshaft phasing sensor of a closed-loop variable valve timing system of an internal combustion engine. The camshaft phasing adjustment mechanism comprises a cam that changes the camshaft phasing. This cam is provided with a dwell t... | 05/29/1990 |
| 4928729 | Fuel pressure regulator valve A fuel pressure regulator valve of the type commonly used in automobile fuel injection systems. The invention relates to improved retention of the valve element within the mount that is carried by the diaphragm assembly. The valve element is a truncated s... | 05/29/1990 |
| 4923169 | Multi-stream thin edge orifice disks for valves A dual stream thin edge orifice disk is defined as a disk having a pair of orifices positioned to direct the flow of fluid from the interior portion of a valve into two different streams. The dual streams may be parallel or typically diverge at an angle f... | 05/08/1990 |
| 4909194 | Modular position controller for variable valve timing A variable valve timing system utilizes a closed-loop control for controlling the valve phasing wherein the closed-loop control receives a command input from the engine ECU. The command input is a pulse width modulated waveform that is synchronized with e... | 03/20/1990 |
| 4907547 | One-piece wave deflector for I.C. engine intake system An internal combustion engine has two differently tuned sets of runners leading to the cylinders. A wave deflector element transversely spans a particular runner for one cylinder and the corresponding particular runner for an adjacent cylinder, and there ... | 03/13/1990 |
| 4888988 | Silicon based mass airflow sensor and its fabrication method A mass airflow sensor is fabricated on a semiconductor substrate and which includes (1) a dielectric diaphragm, (2) p-etch-stopped silicon rim, (3) thin-film heating and temperature sensing elements, and (4) tapered chip edges. The dielectric diaphragm is... | 12/26/1989 |
| 4887562 | Modular, self-contained hydraulic valve timing systems for internal combustion engines Self-contained hydraulic variable valve timing systems for use with internal combustion engines include an especially adapted valve cover which integrally includes a hydraulic lifter, a solenoid valve, and fluid passageways fluid connecting the lifter and... | 12/19/1989 |
| 4884443 | Control and detection circuitry for mass airflow sensors A mass airflow sensor is disclosed which uses a small, thin dielectric diaphragm providing good thermal isolation for thin-film heating and temperature sensing elements, resulting in high flow sensitivity and low current operation of the heating element. ... | 12/05/1989 |
| 4884782 | Means for separably attaching solenoid to valve A solenoid valve assembly in which the solenoid and valve are axially fitted together. The solenoid comprises a cylindrical housing having an axial slot running along its entire length to allow the housing to be resiliently circumferentially expanded. The... | 12/05/1989 |
| 4878461 | Variable camshaft timing system A variable camshaft timing system for an internal combustion engine varies the relative angular position between the intake camshaft and the exhaust camshaft by controlling the path of the timing belt means. A first belt means is interconnected at one end... | 11/07/1989 |
| 4872426 | Variable camshaft timing system A variable camshaft timing system for an internal combustion engine varies the relative angular position between the intake camshaft and the exhaust camshaft by controlling the path of the timing belt. First and second idler arms, each having an idler whe... | 10/10/1989 |
| 4870745 | Methods of making silicon-based sensors A silicon-based sensor includes a substrate, a sensor element, and a protective diaphragm mounting and covering the sensor element. The diaphragm is a silicon layer which, in a preferred embodiment, includes an etch-stop dopant. The etch-stop layer is sea... | 10/03/1989 |
| 4869220 | Accelerator control apparatus An accelerator control apparatus for mounting in a motor vehicle for a "drive-by-wire" system. The apparatus provides a bias spring means to generate the "feel" of an accelerator pedal to the vehicle operator, a compression spring means provides frictiona... | 09/26/1989 |
| 4864724 | Planar mounting of silicon micromachined sensors for pressure and fluid-flow measurement A process for flush-mounting a silicon micromachined sensor for fluid flow measurements with an adjacent face of a substrate. The faces of the substrate and sensor, over which the fluid flow will pass, are disposed face down on a conformal surface. Adhesi... | 09/12/1989 |
| 4858956 | High pressure, fast response, pressure balanced, solenoid control valve A high pressure, fast response, pressure balanced reversible flow, solenoid control valve for use in such automotiove applications as electronic valve timing for internal combustion engines and adaptive braking systems. A pressure balanced bearing is conn... | 08/22/1989 |
| 4855660 | Microstepping of an unipolar stepping motor High resolution microstepping of an unipolar stepping motor is accomplished by applying from a look-up table the values of the SINE and COSINE of a given angle to the control circuit of a unipolar stepping motor. The difference between the present positio... | 08/08/1989 |
