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 |
| 7699294 | Charge forming device with idle and open throttle choke control A charge forming device may include a body having a fuel and air mixing passage, a throttle valve and choke valve moveable between first and second positions to control at least in part the fluid flow in the fuel and air mixing passage, and throttle and choke contro... | 04/20/2010 |
| 7431271 | Carburetor A carburetor has a housing with an intake channel section. A throttle element and a choke element are arranged in the intake channel section and are adjustable between a closed position in which a flow cross-section of the intake channel is substantially closed and ... | 10/07/2008 |
| 7427057 | Control valve assembly of a carburetor and method of assembly A combustion engine carburetor has a control valve assembly that generally controls flow through a fuel-and-air mixing passage extending through a body of the carburetor. The control valve assembly has at least one valve preferably of a butterfly-type having a shaft... | 09/23/2008 |
| 7404546 | Carburetor arrangement A carburetor arrangement for a manually-guided implement operated by an internal combustion engine. A carburetor supplies a fuel/air mixture to the engine, with a butterfly valve being disposed in the intake duct of the carburetor and with a choke valve being dispos... | 07/29/2008 |
| 7377496 | Carburetor for two-cycle engine An interlocking lever having first and second cam faces is mounted on a throttle valve stem, and a throttle valve is arbitrarily opened to perform start-up in a state in which the first cam face makes contact with the choke valve lever and the interlocking lever is ... | 05/27/2008 |
| 7353802 | Governor with take-up spring A governor for an engine includes a speed sensor coupled to the engine that moves in response to changes in engine speed. The governor further includes a linkage coupled between the speed sensor and a throttle member to move the throttle member between a first posit... | 04/08/2008 |
| 7341044 | Method and control device for regulating the air-fuel mixture provided to an engine A method and device is provided for regulating the air-fuel mixture provided to an engine of a stand-by electrical generator during the exercise thereof. The engine is exercised at a predetermined speed less than the normal operating speed of the engine and each cyl... | 03/11/2008 |
| 7337757 | Carburetor arrangement for an internal combustion engine A carburetor (1) for an internal combustion engine has an intake channel section (3) wherein a throttle element and a choke element are supported to pivot about respective rotational axes (34, 35). The carburetor (1) has a starter unit wh... | 03/04/2008 |
| 7334551 | Combustion engine pull cord start system A pull-cord start system has a recoil pulley coupled to a crankshaft of a combustion engine and a pull-cord wound about the recoil pulley which is pulled by an end user to rotate the recoil pulley and thereby start the engine. A throttle override device of the pull-... | 02/26/2008 |
| 7331326 | Carburetor automatic control system in engine A carburetor automatic control system in an engine includes, a temperature-sensitive operating device for operating a choke valve so that the choke valve is opened with a temperature increase of the engine and a governor for opening and closing a throttle valve to m... | 02/19/2008 |
| 7318407 | Governor with low droop having opposed spring A governor for an engine including a speed sensor, a throttle member, a linkage, a primary spring, and a secondary spring. The speed sensor moves in response to changes in a speed of the engine. The linkage is coupled between the speed sensor and the throttle member... | 01/15/2008 |
| 7270111 | Composite engine speed control A common engine speed control mechanism for small internal combustion engines, which may be configured to allow for actuation of the speed control mechanism between stop, idle, and various engine running speed positions by actuation of one of a selected plurality of... | 09/18/2007 |
| 7258205 | Blade stop components and roller bearing clutch design for a power tool A power tool includes a braking system that minimizes a stopping time for a cutting blade of the power tool. The braking system includes a roller bearing clutch mechanism combined with a positive stop pin. The stop pin is provided at an end portion of a cable assemb... | 08/21/2007 |
| 7246794 | Carburetor throttle valve control system A carburetor valve control system for stabilizing engine warm-up operating conditions by automatically controlling the degree of opening of a throttle valve so as to be larger than a normal degree of opening for idling, without carrying out a special operation of ap... | 07/24/2007 |
| 7213571 | Throttle valve arrangement for a carburetor A carburetor throttle valve actuation assembly for a combustion engine is readily adapted for use as a remote control actuator, a local control throttle actuator, or both together providing an optional choice for the end user. The carburetor has a throttle valve hav... | 05/08/2007 |
| 7165532 | Engine speed control with high speed override mechanism A secondary engine speed control mechanism for small internal combustion engines, including an operator control which is manually operable to override an engine running speed which is set by the engine's primary speed control mechanism and governed by the governor. ... | 01/23/2007 |
| 7156376 | Carburetor electronic control system A carburetor electronic control system includes: transmission devices coupled to valves for opening and closing an intake path of a carburetor; electric motors that make the valves open and close via the transmission devices; and an electronic control unit for contr... | 01/02/2007 |
| 7152580 | Engine speed control with high speed override mechanism A secondary engine speed control mechanism for small internal combustion engines, including an operator control which is manually operable to override an engine running speed which is set by the engine's primary speed control mechanism and governed by the governor. ... | 12/26/2006 |
| 7144000 | Automatic choke for an engine An internal combustion engine including a carburetor. The internal combustion engine includes a choke valve disposed within the carburetor, and a choke lever interconnected with the choke valve for movement with the choke valve. The engine also includes a throttle v... | 12/05/2006 |
| 7121533 | Air filter housing with tamper resistant carburetor feature A device for a power tool that includes an internal combustion engine and a carburetor for supplying an air and fuel mixture to the engine. The carburetor includes at least one externally adjustable component. An air filter arrangement of the device is for in-taking... | 10/17/2006 |
| 7118097 | Device for controlling choke valve of carburetor A device for controlling a choke valve of a carburetor for an engine includes: a choke closed state hold device for holding, in a closing position, a choke lever urged by a spring in a direction for opening the choke valve, when the choke lever is turned to the clos... | 10/10/2006 |
| 7104527 | Carburetor with manual choke mechanism A choke valve is fixed to a predetermined position even after manual release, whereby an improved start and a subsequent stable operation are obtained. A fixing force and a valve opening force are applied to a choke valve shaft. Further, a pin of a choke valve lever... | 09/12/2006 |
| 7097163 | Device for controlling choke valve of carburetor A device for controlling a choke valve of a carburetor for an engine, includes a choke closed state hold device for holding, in a closing position, a choke lever connected to the choke valve of a carburetor and urged by a spring in a direction for opening the choke ... | 08/29/2006 |
| 7073731 | Method and system for ambient air scenting and disinfecting based on flexible, autonomous liquid atomizer cartridges and an intelligent networking thereof An apparatus for freshening air, including a base unit; a power supply operably connected to the base unit; a driving and switching circuit connected to be powered by the power supply; a first plug portion connected to the driving and switching circuit; a detachable... | 07/11/2006 |
| 7028993 | Charge forming apparatus A charge forming apparatus for delivering a controlled mixture of fuel-and-air to an engine has a butterfly-type throttle-choke valve disposed in a fuel-and-air mixing passage. Incoming air flowing through a downstream primary venturi of the mixing passage creates a... | 04/18/2006 |
| 6913250 | Carburetor arrangement A carburetor arrangement for an internal combustion engine in a manually guided implement, such as a power chainsaw, a cut-off machine, etc. is provided. A regulating chamber delimited by a regulating diaphragm is provided. Upon deflection of the diaphragm due to un... | 07/05/2005 |
| 6896245 | Stratified scavenging carburetor A stratified scavenging carburetor with a lost motion coupling permits limited relative movement of a throttle valve relative to an air valve so that initial opening of the throttle valve off idle does not open the air valve to avoid diluting with scavenging air the... | 05/24/2005 |
| 6871623 | Working machine having a single operation unit The present invention provides a working machine having an internal combustion engine. The working machine includes a single operation unit comprised of a rotatable body adapted to be selectively rotated between an engine-stop position, engine-start position and cho... | 03/29/2005 |
| 6848405 | Self-relieving choke starting system for a combustion engine carburetor A self-relieving choke starting system for a carburetor of a combustion engine has an elongated cammed latch which projects radially outward from a rotating shaft of a choke valve located in an upstream region of a fuel-and-air mixing passage carried by a body of th... | 02/01/2005 |
| 6827339 | Variable venturi-type carburetor with automatic vacuum regulation and cam control mechanism A variable venturi-type carburetor has a base defining a central channel having an upper inlet end and a lower outlet end. A variable venturi assembly is situated in the middle of the central channel. The variable venturi assembly has a support, a conical body, and ... | 12/07/2004 |
| 6708958 | Air valve mechanism for two-cycle engine A carbureted two-cycle engine including an intake channel, a choke valve in the intake channel fixed to a pivotable choke valve shaft and lever, and a throttle valve in the intake channel fixed to a pivotable throttle valve shaft and lever. The engine includes an ai... | 03/23/2004 |
| 6641118 | Carburetor arrangement A carburetor arrangement for an internal combustion engine including a two-stroke engine in a portable handheld work apparatus includes an intake channel section (2) which is formed in the carburetor housing (34). A throttle flap (3) is arranged in the in... | 11/04/2003 |
| 6595109 | Wine preserving assembly A wine preserving assembly which simultaneously delivers an inert-gas to the headspace of a wine bottle while simultaneously evacuating undesirable gas contained in the headspace through the action of operatively engaging an inert gas-containing vessel to... | 07/22/2003 |
| 6561496 | Carburetor throttle control detent mechanism A carburetor having a throttle valve co-rotatable with a small diameter throttle shaft having a free end protruding from an exterior side surface of the associated carburetor body. A throttle lever detent arm is co-rotatable on and with the throttle shaft... | 05/13/2003 |
| 6550749 | System for actuating a carburetor of an internal combustion engine For an internal combustion engine carburetor (10) having a throttle valve (14) and a choke (22), the throttle valve (14) and the choke (22) can be brought in dependence on each other to different sets of predetermined operating positions which are appropr... | 04/22/2003 |
| 6494439 | Carburetor control system having two cam members connected to choke valve and throttle valve A carburetor control system for a carburetor including a first cam and a second cam. The carburetor includes a choke valve assembly and a throttle valve assembly. The first cam is connected to the choke valve assembly. The second cam is connected to the t... | 12/17/2002 |
| 6454245 | Engine intake control mechanism An engine intake control mechanism has a throttle valve that can be rotated to a cold-starting position in response to the closing movement of a choke valve and, even if the throttle valve is opened beyond the cold-starting position, the choke valve is re... | 09/24/2002 |
| 6439547 | Carburetor throttle and choke control mechanism A carburetor throttle and choke control mechanism incorporating a choke-throttle cold-start fast idle setting latch mechanism having, in a first embodiment, a blade of a fast idle lever specially contoured for creating upon interengagement with a tang on ... | 08/27/2002 |
| 6202989 | Carburetor throttle and choke control mechanism A control mechanism for a carburetor having a throttle valve and a choke valve each having at least a cold-starting position and a full-speed position. The throttle valve is spring biased toward its third, low idle position, and the choke valve is mounted... | 03/20/2001 |
| 6079697 | Method and apparatus for fast start fuel system for an internal combustion engine A fuel delivery system for an internal combustion engine. The fuel delivery system includes a carburetor housing having an air passage with a throttle valve disposed therein. A choke lever is movably mounted to the carburetor housing for restricting air f... | 06/27/2000 |
