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.
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| Number | Title | Issue Date |
| 7331641 | Braking stroke simulator The present invention is directed to a braking stroke simulator for use in a brake system, which comprises a simulator piston moved in response to operation of a manually operated braking member, and an elastic element for providing a stroke to the simulator piston ... | 02/19/2008 |
| 7258208 | Vertical mount disc brake with disc separator A brake (10) which is adapted to be rotationally coupled with an output shaft includes a housing (11). An inner shaft (33) is adapted to be attached to the output shaft for rotation therewith. A disc assembly (64) includes a plurality of ... | 08/21/2007 |
| 7140337 | Valve gear mechanism In a valve gear mechanism of an internal combustion engine, there is provided a valve opening and closing a combustion chamber, a spring device which generates a force pressing the valve toward a valve seat, a drive mechanism driving the valve in an opening directio... | 11/28/2006 |
| 6789790 | Helical coil spring damper assembly A device for reducing the resonant vibrations of a helical valve spring of an internal combustion engine includes a member, such as a tension cable, attached between one end of the spring and a coil mid-section of the spring for limiting the movement of the coil mid... | 09/14/2004 |
| 6779496 | Pressure reservoir for exerting pressure on a hydraulic system, with which preferably a gas exchange valve of an internal combustion engine is actuated A pressure reservoir is used to exert pressure on a hydraulic system with which, a gas exchange valve, for instance, of an internal combustion engine can be actuated. The pressure reservoir includes a housing and a piston that is prestressed in operation by a device... | 08/24/2004 |
| 6532925 | Stamped valve spring and retainer A bias element which urges the valves in an internal combustion engine into their closed positions and includes a pair of arms and a bight portion connecting the two arms. Each arm has an aperture therein with at least one arm having an aperture that is k... | 03/18/2003 |
| 6505593 | Valve spring set load changing device in a valve moving apparatus of an internal combustion engine A valve moving apparatus of an internal combustion engine comprises an engine valve, a valve spring, a spring seat supporting an end of the valve spring and a cam driving the engine valve to open. A valve spring set load changing device in the valve movin... | 01/14/2003 |
| 5606940 | Engine valve seating velocity hydraulic snubber The present invention is an apparatus 10 for hydraulically slowing a member (12), preferably an engine poppet valve, to an acceptable impact seating velocity as the valve (12) is moved from open to closed. The poppet valve (12) has a stem (16) having a fi... | 03/04/1997 |
| 5451029 | Variable valve control arrangement A variable valve control arrangement for a lift valve of an internal combustion engine has a longitudinally adjustable coupling assembly disposed between a cam and the lift valve including an outer cup plunger and an inner plunger on the lift valve side a... | 09/19/1995 |
| 5203535 | Cam actuated valve assembly with hydraulic spring Valve assembly includes a stem having a first section toward the cam and a second section toward the valve face, the first section having a larger diameter than the second section. A housing defines a closed chamber having a first bore which closely recei... | 04/20/1993 |
| 5048476 | Two-cycle internal combustion engine A two-cycle, internal combustion engine utilizing a stepper motor to vary tension on an air intake valve. An air pump forces air through the valve but is opposed by forces due to a spring on the valve and pressure in the cylinder. By varying the compressi... | 09/17/1991 |
| 4970997 | Valve operating mechanism for an internal combustion engine A valve operating mechanism for an internal combustion engine having a valve disposed in an intake port or an exhaust port of a combustion chamber and being openable by a rotatable cam and cam follower in synchronism with the engine crankshaft rotation. T... | 11/20/1990 |
| 4312494 | Valve device using an on-off functioning type electromagnetic actuator A piston is biased by a valve so as to decrease the volume of a chamber just before seating of the valve on the valve seat and brakes and slows up movement of the valve towards the valve seat by compressing a hydraulic fluid in the chamber and forcing out... | 01/26/1982 |
