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Class Information
Number: 261/44.4
Name: Gas and liquid contact apparatus > Fluid distribution > Valved > Multiple valves > Connected > Contact space > Traversely reciprocating air or mixture valve > Suction operated
Description: Apparatus wherein the air or mixture valve is moved by suction usually engine, e.g., variable venturi type carburetor.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
6840509 Carburetor for an internal combustion engine Jan. 11, 2005
6672570 Variable venturi carburetor Jan. 6, 2004
6637730 Carburettor for an internal combustion engine Oct. 28, 2003
6505821 Carburetor Jan. 14, 2003
6164631 Carburetor with elliptical venturi Dec. 26, 2000
5988602 Variable venturi carburetor Nov. 23, 1999
5874028 Structural improvement on a carburetor for motorcycles Feb. 23, 1999
5720906 Down-drafting constant vacuum type diaphragm carburettor Feb. 24, 1998
5707560 Constant velocity carburetor with variable venturi slide having bleed holes at an oblique angle and method of operation Jan. 13, 1998
5648023 Vacuum response type carburetor Jul. 15, 1997
5598816 Carburetor metering system alone and in combination with a wick or spark plug Feb. 4, 1997
5480592 Side draft carburetor for motorcycles Jan. 2, 1996
4862850 Idle detector for internal combustion engine Sep. 5, 1989
4765932 Fuel supply device for carburetors Aug. 23, 1988
4627401 High-velocity carburetor for an Otto engine Dec. 9, 1986
4562012 Variable venturi type carburetor Dec. 31, 1985
4559185 Variable venturi type carburetor Dec. 17, 1985
4545350 Fuel controller of variable choke carburetor Oct. 8, 1985
4519957 Variable-venturi carburetor May. 28, 1985
4517134 Variable venturi carburetor May. 14, 1985
4513706 Anti-dieseling device for demand carburetors Apr. 30, 1985
4512312 Variable venturi-type carburetor Apr. 23, 1985
4508664 Variable venturi-type carburetor Apr. 2, 1985
4506644 Exhaust gas-purifying device of an internal combustion engine Mar. 26, 1985
4505250 Variable venturi carburetor Mar. 19, 1985
4500476 Variable venturi type carburetor Feb. 19, 1985
4495112 Variable venturi-type carburetor Jan. 22, 1985
4493804 Variable venturi-type carburetor Jan. 15, 1985
4492207 Dual fuel system Jan. 8, 1985
4491552 Pressurized/heated variable jet carburetor Jan. 1, 1985
4491550 Variable venturi type carburetor Jan. 1, 1985
4489014 Variable venturi carburetor Dec. 18, 1984
4484557 Variable venturi carburetor Nov. 27, 1984
4477392 Variable venturi-type carburetor Oct. 16, 1984
4476067 Device for controlling the operation of a carburetor Oct. 9, 1984
4473511 Variable venturi-type carburetor Sep. 25, 1984
4472326 Variable venturi-type carburetor Sep. 18, 1984
4472322 Variable venturi carburetor Sep. 18, 1984
4465643 Variable venturi carburetor Aug. 14, 1984
4465642 Variable venturi-type carburetor Aug. 14, 1984
4464311 Variable venturi-type carburetor Aug. 7, 1984
4460518 Device for controlling the operation of a carburetor Jul. 17, 1984
4459243 Variable venturi-type carburetor Jul. 10, 1984
4457279 Air-fuel ratio control device of a variable venturi-type carburetor Jul. 3, 1984
4454076 Variable venturi carburetor Jun. 12, 1984
4450117 Variable venturi-type carburetor May. 22, 1984
4444695 Variable venturi carburetor Apr. 24, 1984
4443388 Device for adjusting the degree of opening of the throttle valve of a carburetor Apr. 17, 1984
4434111 Variable venturi-type carburetor Feb. 28, 1984
4432911 Variable venturi carburetor Feb. 21, 1984

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