U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Did You Know...

...that on Dec. 15, 1836, the Patent Office was completely destroyed by fire? Lost were some 7,000 models, 9,000 drawings, and 230 books plus all records of patent applications and grants.

Newsletter  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.

 

Class 261/44.3 - Traversely reciprocating air or mixture valve


Subclass of Class 261 - Gas and liquid contact apparatus
Definition: Apparatus which includes an air or mixture valve that reciprocates
No. of patents: 82
Last issue date: 12/29/2009


1      
NumberTitleIssue Date
7637483Carburetor equipped with needle jet
A carburetor includes a valve mechanism, and a needle jet extending in an up and down direction. Also included is a jet needle provided to a sliding throttle valve disposed in an air intake tube and inserted into the jet needle. The valve mechanism includes a valve ...
12/29/2009
7513487Carburetor
To provide a carburetor in which, when a set screw is detached, a jet needle can also be detached along with the set screw. A carburetor of the variable venturi type has a venturi piston to adjust the venturi of an intake passage that is provided in a carburetor bod...
04/07/2009
7299688Device and method for maximizing internal combustion engine horsepower for a preselected RPM range
A device 10 and method for maximizing internal combustion engine horsepower for a preselected RPM range includes a plurality of velocity stacks 12 removably inserted via grommets 16 into apertures 17 in an air box portion 14 of the...
11/27/2007
7290757Rotary carburetor
A versatile rotary carburetor has an idle adjustment needle, a high speed adjustment needle, and preferably an air bypass screw which are substantially parallel to one another and are axially exposed for adjustment in a substantially common direction. Preferably a c...
11/06/2007
7287741Rotary throttle valve carburetor
A rotary throttle valve carburetor includes a main body defining a mixing passage and a valve bore, and a throttle valve rotatably received in the valve bore to selectively open and close the mixing passage. The carburetor main body includes an integral throttle val...
10/30/2007
7267327Throttle valve assembly and dust seal for a carburetor
A carburetor has a throttle valve assembly with a cam member and cam surface internally arranged in a body of the carburetor. The cam member is carried by the throttle valve body and preferably has outwardly extending tabs for locking engagement within slots formed ...
09/11/2007
7114708Rotary throttle valve carburetor
A rotary throttle valve carburetor includes a body having a fuel and air mixing passage and a throttle valve movable between idle and wide open positions. A valve bore is increasingly aligned with the fuel and air mixing passage as the throttle valve is moved from i...
10/03/2006
7104253Stratified scavenging carburetor
In one presently preferred embodiment a stratified scavenging carburetor has a scavenging air passage with an air control valve and a fuel and air mixing passage with a throttle control valve, and a lost motion coupling associated with the valves to delay opening of...
09/12/2006
7097165Carburetor fuel adjustment and limiter assembly
A carburetor fuel valve adjustment and limiter assembly for a combustion engine limits the maximum and minimum fuel amounts delivered through the valve of the carburetor. A needle valve of the adjustment and limiter assembly cooperates with a collar and pin generall...
08/29/2006
7094476Surface-treated product, surface-treatment method, and surface-treatment apparatus
There is provided a surface treated product that moves relatively in a fluid, wherein a surface of the surface treated product has continuous dimples, each dimple having a diameter of 10 to 2500 μm and a depth of 50 μm or less. The surface treated product signific...
08/22/2006
7070173Carburetor air-fuel mixture adjustment assembly
An apparatus for adjusting the air-fuel ratio of a fuel mixture to be supplied to an engine. The apparatus has a pair of needle valve bodies and a pair of receptacles formed in a main body of a carburetor for receiving the needle valve bodies. Each needle valve body...
07/04/2006
6920864Throttle body
A throttle body for an internal combustion engine has a housing, a first plate carried by the housing for linear reciprocation between a first position and a second position in response to movement of a throttle member, and a second plate carried by the housing for ...
07/26/2005
6843469Scavenging air/fuel-air mixture control device for a stratified scavenging two-cycle engine
The present invention facilitates proper control of the scavenging air and fuel-air mixture for a stratified scavenging two-cycle engine that is based on a crankcase compression/scavenging method, using any carburetor. The present invention includes a drive member, ...
01/18/2005
6827338Scavenging air/fuel-air mixture control device for a stratified scavenging two-cycle engine
The present invention facilitates proper control of the scavenging air and fuel-air mixture for a stratified scavenging two-cycle engine that is based on a crankcase compression/scavenging method, using any carburetor. The present invention includes a drive member, ...
12/07/2004
6827337Rotary throttle valve carburetor
A rotary throttle valve carburetor has a fuel-and-air mixing passage which extends through a carburetor body. A cylindrical throttle chamber extends down from a top surface of the body and communicates transversely with the fuel-and-air mixing passage. A rotary thro...
12/07/2004
6672570Variable venturi carburetor
A variable venturi carburetor for a combustion engine has an uprighted cup-shaped piston head which forms an integral part of a venturi within a fuel-and-air mixing passage carried by a carburetor body, and a needle that projects rigidly downward from the...
01/06/2004
6505821Carburetor
A carburetor for an internal combustion engine including a body having an air inlet opening and air outlet opening. A throat is disposed in the body between the air inlet and outlet openings. A slide assembly is movably disposed in the body for crosswise ...
01/14/2003
6431527Rotary throttle valve carburetor
A rotary throttle valve carburetor for a two cycle engine reroutes a portion of intake air and introduces the air around the circumference of a fuel feed tube. A rotary throttle, rotatable and vertically moveable, fits into a cylindrical chamber intersect...
08/13/2002
6273403Performance carburetor
A carburetor having four distinct features providing improved performance: A sculptured chamber having a D-shaped configuration; a fuel flow interference needle with a number of bevel zones; easily accessible needle advancement and retraction means; and a...
08/14/2001
6270060Slide carburetor with adjustable vent hole in slide
A carburetor includes a fuel jet having a reciprocal needle received therein for controlling fuel as such fuel flows into an air flow passage of the carburetor. The needle is carried by a reciprocal slide which includes a vent hole in the bottom surface t...
08/07/2001
5662836Fuel jet having stepped needle
A carburetor includes a main fuel jet having a reciprocal needle received therein for controlling fuel as such fuel flows into an air flow passage of the carburetor. The needle includes a stepped portion which is integrally formed or rigidly affixed there...
09/02/1997
5562868Carburetor fuel discharge assembly
A carburetor has a fuel discharge assembly which is much easier to install than known assemblies. The assembly includes a mounting ring that carries a fuel jet therein with the fuel jet extending radially inwardly relative to the mounting ring. The discha...
10/08/1996
5538673Carburetor
A carburetor of the slide and metering rod type is characterized by the provision of an adjusting screw assembly which has an audible sound feature resulting in a click every quarter revolution of the carburetor adjusting screw. With this clicking, the ca...
07/23/1996
5427719Main nozzle for carburetor
A carbutetor having an intake pass, an axially movable throttle valve, a main nozzle, a main jet fixedly disposed on the lower end of the main nozzle having an axial channel, a conical surface and a planar surface. The main jet comprises a plurality of do...
06/27/1995
5419924Chemical vapor deposition method and apparatus therefore
Fixed amounts of a liquid source for a chemical vapor deposition process is supplied continuously from a source tank and through a liquid mass flow controller to a three-way valve. Inside the three-way valve, the liquid source is evaporated to generate a ...
05/30/1995
5378411Automatic choke system for carburetor
The present disclosure concerns an automatic choke system designed to make a whole carburetor shorter and more compact. The system comprises a case body having a generally inverted L-shape, with a thermo-element housed in a vertical portion of the case bo...
01/03/1995
5368788Float bowl for carburetors
A carburetor float bowl is provided which is elongated in a direction lengthwise of the vehicle and has a smooth upwardly curved section on the bottom wall at the front and rear ends of the float bowl to minimize sloshing of the gasoline and also minimize...
11/29/1994
5342555Carburetor
A carburetor of the slide and metering rod type comrpising an air flow straightening device at the inlet portion thereof for straightening and accelerating the air flow in narrow channels from the inlet end to the metering rod to thereby reduce turbulence...
08/30/1994
5308554Carburetor
A carburetor of the slide and metering rod type is characterized by the provision of a tapered metering rod for streamlining the flow of air from the inlet end of the carburetor around the metering rod to reduce turbulence and increase air velocity by com...
05/03/1994
5300259Carburetor and fuel feeding system having the same
A carburetor and a fuel seeding system having the same including an air suction passageway through which air is fed, and a fuel feeding passageway which is disposed so as to be intersected to the air suction passageway and through which fuel is fed, the a...
04/05/1994
5258143Carburetor with a cam-controlled venturi
A carburetor with a cam-controlled venturi; the carburetor mainly comprises a front part, a body and a rear part, and the carburetor further comprises a cam-controlled adjustable venturi mechanism, a main choker, a heavy-duty fuel supply system, a vacuum-...
11/02/1993
5203925Apparatus for producing a thin film of tantalum oxide
An apparatus for producing a thin film of tantalum oxide comprising a vacuum chamber with a heater, an ampule of an organic tantalum compound, a container of a carrier gas, a container of an oxygen-containing gas, and a three way valve having a liquid inl...
04/20/1993
5124084Carburetor drain apparatus
A carburetors drain apparatus, particularly suited for two stroke internal combustion engine applications. The drain apparatus diverts fuel contaminants away from the fuel jets to a remotely located sediment collector. The collector retains the accumulate...
06/23/1992
5021198Carburetor with high altitude compensator
In order to ensure correction for altitude for the carburetor used on a internal combustion engine, a control system for the pressure within the fuel bowl (8) is incorporated. This control system consists of a pressure splitter (11) that is connected, on ...
06/04/1991
4980097Carburetor-air reversion
A carburetor of the slide and metering rod type is characterized by the provision of a device for obstructing reverse or backflow air from the outlet end of the carburetor body from passing the metering rod in order to prevent the backflow air from contam...
12/25/1990
4971730Carburetor-air deflector bar
A carburetor of the slide and metering rod type is characterized by the provision of an air deflecting bar in the carburetor throat adjacent the metering rod for deflecting the flow of air from the inlet end of the carburetor around the metering rod to re...
11/20/1990
4926059Carburetor
The position of the metering rod relative to the slide member of a carburetor is adjusted by rotation of an adjusting screw which slidably extends through an opening in a plate member fixedly mounted within a substantially vertical bore in the slide membe...
05/15/1990
4924823Six stroke internal combustion engine
An internal combustion engine generally utilizes a conventional four stroke process including an intake stroke, compression stroke, expansion stroke, and exhaust stroke and in addition to this four stroke process, adds a secondary process having two addit...
05/15/1990
4814115Slide and pin type carburetor
A slide and pin type carburetor using a plate-shaped slide valve in which the lower end surface of a flat plate portion is placed on the same plane as that of a column-shaped portion, the flow rate of air is controlled in the periphery of the column-shape...
03/21/1989
4793950Carburetor water trap
A water, ice and sediment trap attached to the lower portion of the fuel chamber of a carburetor for an internal combustion engine. The sediment trap receives and retain particles and fluids heavier than gasoline and stores them away from the fuel flow pa...
12/27/1988
1      
 
Sign InRegister
Username  
Password   
forgot password?