Gordon E Rado, Age 70113 Markham Ln, Crossville, TN 38558

6892517, May 17, 2005

Feb 9, 2004

10/774825

G. Michael Adams - Chilton WI, US
Arcady Royzen - Brown Deer WI, US
Gordon E. Rado - Plymouth WI, US

Tecumseh Products Company - Tecumseh MI

A01D075/28

56 102R

A self-propelled mower with blade and ground speed controls. The mower includes a motor with an output shaft and a rotatable cutting blade mounted on a blade shaft. The motor may be an internal combustion engine. A torque transmitting mechanism such as a variable diameter pulley defines a rotational speed ratio between the output shaft and the blade shaft. A transmission is coupled to the output shaft. Sensors provide an electronic control unit with the blade speed, ground speed and engine speed. The ECU may be used to maintain either a desired blade speed or a desired ground speed. To maintain a desired blade speed, the ECU monitors the blade speed and, when the blade speed diverges from the desired speed, adjusts either the rotational speed ratio of the output shaft and blade shaft or the ground speed of the mower to maintain the desired blade speed.

6895914, May 24, 2005

May 21, 2003

10/442604

Gordon E. Rado - Plymouth WI, US
John F. Hoffman - Fort Wayne IN, US
Adam F. Cox - Fort Wayne IN, US

Tecumseh Products Company - Tecumseh MI

F02M001/10

12317911, 12317913, 261 362, 261DIG 8

A priming system for the carburetor of a small internal combustion engine which is used with a lawnmower, for example, in which the priming system is remotely actuated. The priming system includes a priming feature for supplying an amount of liquid fuel to the carburetor throat to aid in starting the engine, and an enrichment feature for providing an enriched fuel supply to the engine during a warm-up period. In one embodiment, the priming system includes an automatic primer disabling feature which is operative when the engine is warm to block the supply of priming fuel to the carburetor throat and thereby prevent priming during a warm engine re-start. In another embodiment, the priming system includes a primer reduction feature, which is operative when the engine is warm to provide a reduced amount of priming fuel to the carburetor throat during a warm engine re-start, with respect to the amount of fuel which is supplied during a cold engine start.

6932055, Aug 23, 2005

Sep 30, 2003

10/674970

Gordon E. Rado - Plymouth WI, US

Tecumseh Products Company - Tecumseh MI

F02D041/14
F02D043/04

123352, 123361, 123458, 123497, 123676

An engine control system for maintaining the operator-commanded speed setting of an internal combustion engine over a range of engine loads and for easy starting and improved efficiency over a range of ambient and engine operating temperatures. The engine control system includes a governor assembly driven by the engine, the governor assembly supplying an output to a sensor assembly through a mechanical coupling member operator. The sensor assembly provides an engine speed control signal which corresponds to operator commanded engine speed and actual engine speed. The engine speed control signal is provided to a throttle actuator to control actual engine speed is controlled to correspond with the operator-commanded engine speed regardless of loads imposed on the engine.

7131430, Nov 7, 2006

Sep 4, 2003

10/656305

Gordon E. Rado - Plymouth WI, US
David R. Brower - Beaver Dam WI, US
Dennis N. Stenz - Mount Calvary WI, US

Tecumseh Products Company - Tecumseh MI

F02M 37/04

123525, 123520

An evaporative emissions control system for small internal combustion engines includes a control valve associated with a fuel line and with a vent line which each connect the fuel tank to the carburetor. When the engine is not running, the control valve automatically closes the vent line and the fuel line, thereby trapping fuel vapors within the fuel tank and vent line and preventing the supply of liquid fuel to the carburetor. Upon engine start up, actuation of a bail assembly or vacuum produced within the carburetor causes the control valve to open the vent line and the fuel line, venting fuel vapors from the fuel tank through the fuel line to the carburetor for consumption by the engine, and opening the supply of liquid fuel from the fuel tank to the carburetor. Also, the present evaporative emissions control system may be used in conjunction with one or more fuel tank sealing and venting assemblies, which prevent the escape of fuel vapors from the fuel tank into the atmosphere, yet which allow fluid exchange in a closed manner between the fuel tank and carburetor.

7275355, Oct 2, 2007

Mar 1, 2005

11/069703

G. Michael Adams - Chilton WI, US
Arcady Royzen - Brown Deer WI, US
Gordon E Rado - Thief River Falls MN, US

Tecumseh Products Company - Tecumseh MI

A01D 34/47

56 102H, 56 102 G

A self-propelled mower with blade and ground speed controls. The mower includes a motor with an output shaft and a rotatable cutting blade mounted on a blade shaft. The motor may be an internal combustion engine. A torque transmitting mechanism such as a variable diameter pulley defines a rotational speed ratio between the output shaft and the blade shaft. A transmission is coupled to the output shaft. Sensors provide an electronic control unit with the blade speed, ground speed and engine speed. The ECU may be used to maintain either a desired blade speed or a desired ground speed. To maintain a desired blade speed, the ECU monitors the blade speed and, when the blade speed diverges from the desired speed, adjusts either the rotational speed ratio of the output shaft and blade shaft or the ground speed of the mower to maintain the desired blade speed.

8601992, Dec 10, 2013

Sep 14, 2012

13/617451

Danielle A. Fong - Oakland CA, US
Stephen E. Crane - Santa Rosa CA, US
Gordon Rado - Concord CA, US

LightSail Energy, Inc. - Berkeley CA

F01L 7/00

12319011, 1231901, 12319014, 1231881

Embodiments relate to valves comprising a member such as a plate or poppet, that is moveable relative to a stationary seat. The state of the member may be maintained against opposing forces with relatively little expenditure of energy. According to one embodiment, a poppet displaced from seating in the valve seat, may be held in position against opposing forces tending to close the valve, until a desired flow of gas through the valve has taken place. The poppet may then be released as desired, such that those opposing forces serve to passively close the valve. The valve may be secured in position utilizing mechanical, magnetic, electromagnetic, pneumatic, electrostatic, or hydraulic approaches. Valve embodiments may be particularly suited to controlling gas flows for compression and/or expansion in an energy storage system.

8613267, Dec 24, 2013

Jul 18, 2012

13/552580

Danielle A. Fong - Oakland CA, US
Stephen E. Crane - Santa Rosa CA, US
Gordon Rado - Concord CA, US

LightSail Energy, Inc. - Berkeley CA

F01L 7/00

12319011, 1231881, 1231904, 251231

Embodiments relate to valves comprising a member such as a plate or poppet, that is moveable relative to a stationary seat. The state of the member may be maintained against opposing forces with relatively little expenditure of energy. According to one embodiment, a poppet displaced from seating in the valve seat, may be held in position against opposing forces tending to close the valve, until a desired flow of gas through the valve has taken place. The poppet may then be released as desired, such that those opposing forces serve to passively close the valve. The valve may be secured in position utilizing mechanical, magnetic, electromagnetic, pneumatic, electrostatic, or hydraulic approaches. Valve embodiments may be particularly suited to controlling gas flows for compression and/or expansion in an energy storage system.

2004000, Jan 8, 2004

Jun 16, 2003

10/462194

George Gatecliff - Saline MI, US
David Brower - Beaver Dam WI, US
Gordon Rado - Plymouth WI, US
Keith Novak - Depere WI, US

F01L009/04

123/090110

A piezoelectric valve actuation system for an internal combustion engine includes a piezoelectric driver in the form of a pre-stressed wafer or strip including a layer of piezoceramic material such as lead zirconate titanate (PZT). The driver has a central portion which includes an aperture for direct engagement with a valve stem so that the valve is moved between open and closed positions directly by the piezoelectric driver. The piezoelectric driver can have end portions which attach to the engine cylinder head proximate the valve location. The piezoelectric actuator is driven by an electronic control module (ECM) providing electrical signals to control valve operation based various engine parameters along with user input.