David R Shebuski

20080224335, Sep 18, 2008

Mar 16, 2007

11/687199

David R. Shebuski - Franklin TN, US

F02M 1/02

261 233

A carburetor for a stratified charge two cycle engine with a choke bore, venturi, and throttle bore configuration matching an irregularly shaped choke valve. The trailing and leading edges of the choke and throttle valves, respectively, preferably overlap during wide open throttle operation to separate a single intake passage bore into an air intake passage above the choke and throttle valves and an air/fuel intake passage below the choke and throttle valves. The choke valve is preferably bent to minimize operational rotation and limit fuel spit back.

20120161342, Jun 28, 2012

Dec 28, 2010

12/979801

David R. Shebuski - Franklin TN, US

F02M 1/02

261 646

A carburetor comprising a one piece choke valve and shaft assembly including a shaft, a detent plate formed on a first end, a lever arm formed on a second end, a pair of opposing collars formed adjacent the detent plate and lever arm, a valve plate centrally positioned on shaft, and opposing splines formed on the shaft enabling it to be inserted through an assembly slot cut into a shaft bore in the carburetor body. The detent plate includes a partial annular slot encompassing the angular range of travel of the choke valve. First, second and third detent pockets are formed along an outer edge of the slot. A positive positioning pin engages or interacts with the detent plate to positively position the choke valve in first, second or third angular positions corresponding to “close choke”, “half choke” and “open choke.”

20140076277, Mar 20, 2014

Mar 4, 2013

13/784672

David Shebuski - Franklin TN, US

F02M 17/00

123337

A carburetor comprising a throttle cable housing mountable over a throttle cable and couplable to a retainer or receptacle that is an integrated part of the carburetor assembly. The throttle cable housing is configured with a molded protrusion that snaps into the retainer or receptacle on the carburetor so that once installed the throttle cable housing cannot be removed without a special tool. The retainer or receptacle accepts the snap in throttle cable housing and can be positioned in a variety of ways to facilitate the requirements of the engine manufacturer. In a rotary carburetor, the retainer or receptacle is preferable formed on the rotor cover. In a carburetor with a butterfly throttle valve, the retainer or receptacle is preferable formed as an integrated part of the metering chamber cover.

20180320635, Nov 8, 2018

Oct 23, 2017

15/791253

- Franklin TN, US
David R. Shebuski - Franklin TN, US

F02M 7/24
F02M 1/02

A carburetor including a one piece choke valve and shaft assembly including a shaft, a detent plate formed on a first end, a lever arm formed on a second end, a pair of opposing collars formed adjacent the detent plate and lever arm, a valve plate centrally positioned on the shaft, and opposing splines formed on the shaft enabling it to be inserted through an assembly slot cut into a shaft bore in the carburetor body. The detent plate includes a partial annular slot encompassing the angular range of travel of the choke valve. First, second and third detent pockets are formed along an outer edge of the slot. A positive positioning pin engages or interacts with the detent plate to positively position the choke valve in first, second or third angular positions corresponding to “close choke”, “half choke” and “open choke.”

20170022936, Jan 26, 2017

Mar 16, 2016

15/071747

- Franklin TN, US
David R. Shebuski - Franklin TN, US

F02M 7/24
F02M 1/02

A carburetor including a one piece choke valve and shaft assembly including a shaft, a detent plate formed on a first end, a lever arm formed on a second end, a pair of opposing collars formed adjacent the detent plate and lever arm, a valve plate centrally positioned on the shaft, and opposing splines formed on the shaft enabling it to be inserted through an assembly slot cut into a shaft bore in the carburetor body. The detent plate includes a partial annular slot encompassing the angular range of travel of the choke valve. First, second and third detent pockets are formed along an outer edge of the slot. A positive positioning pin engages or interacts with the detent plate to positively position the choke valve in first, second or third angular positions corresponding to “close choke”, “half choke” and “open choke.”

20150176531, Jun 25, 2015

Dec 23, 2013

14/139203

David R. Shebuski - Franklin TN, US
Toshiyuki Kuyo - Takizawa, JP
Nonaka Takumi - , US
Jay A. Perry - Franklin TN, US

F02M 9/12

A carburetor includes a body with an air intake path, a fuel pump and a fuel pressure regulator. The fuel pump and fuel pressure regulator are positioned on the same side of the body. A fuel pump and metering chamber diaphragm is sandwiched between the body of the carburetor and a pump body and cover. The diaphragm separates a pump chamber from a pulse chamber of the fuel pump and separates a fuel chamber from an air chamber in the fuel pressure regulator. Inlet and outlet flapper valves are part of the diaphragm or a separate flapper valve member positioned between the body and the diaphragm.

20140339716, Nov 20, 2014

Apr 4, 2014

14/245467

- Franklin TN, US
David R. Shebuski - Franklin TN, US

USA ZAMA, INC. - Franklin TN

F02M 1/02

261 644

A carburetor including a one piece choke valve and shaft assembly including a shaft, a detent plate formed on a first end, a lever arm formed on a second end, a pair of opposing collars formed adjacent the detent plate and lever arm, a valve plate centrally positioned on the shaft, and opposing splines formed on the shaft enabling it to be inserted through an assembly slot cut into a shaft bore in the carburetor body. The detent plate includes a partial annular slot encompassing the angular range of travel of the choke valve. First, second and third detent pockets are formed along an outer edge of the slot. A positive positioning pin engages or interacts with the detent plate to positively position the choke valve in first, second or third angular positions corresponding to “close choke”, “half choke” and “open choke.”