Caterpillar Inc.

Bradly G Duffer

John James Krone

Jeremy Todd Peterson

Daniel Peter Sergison

Edward William Mate

Matthew Stephen Marquette

Jeffrey J Mueller

Philip A Thompson

Daniel L Loer

A machine includes a frame, a first steering arm, a second steering arm, a first hydraulic actuator coupled to the frame and the first steering arm, and a second hydraulic actuator coupled to the frame and the second steering arm. A first angle sensor measures a rotational displacement of the first hydraulic actuator relative to the first steering arm. A first link couples the first hydraulic actuator and the first sensor, and isolates movements other than the first rotational displacement. A second angle sensor measures a second rotational displacement of the second hydraulic actuator relative to the second steering arm. A second link couples the second hydraulic actuator and the second sensor, and isolates movements other than the second rotational displacement.

System for detecting failure of an Ackerman-type steering mechanism

A machine includes a frame and an oscillating hitch. A first cylinder couples to a first side of the oscillating hitch and a first side of the frame. A second cylinder couples to a second side of the oscillating hitch and a second side of the frame. A first isolating mechanism couples to the first cylinder and rotates in response to a first rotation of the first cylinder relative to the frame or the oscillating hitch. A first angle sensor senses a first angular displacement of the first isolating mechanism about a first rotational axis. A second isolating mechanism couples to the second cylinder and rotates in response to a second rotation of the second cylinder relative to the frame or the oscillating hitch. A second angle sensor senses a second angular displacement of the second isolating mechanism about a second rotational axis.

System for detecting failure of an articulated steering mechanism

A system, a method, and an apparatus to retain an in-cylinder linear position sensor in a cavity of a housing of a hydraulic cylinder assembly are described. The in-cylinder linear position sensor includes a sensor body that houses circuitry of the in-cylinder linear position sensor, and a sensor cap that extends from an upper surface of the sensor body. The sensor cap has a retention mechanism with a portion that extends radially outward relative to a central vertical axis of the sensor body so as to extend into and engage a wall of an access port of the housing to hold the in-cylinder linear position sensor in the cavity of the housing. The portion of the retention mechanism is configured to move inward from an outer position toward the central vertical axis of the sensor body.

System, method, and apparatus to retain in-cylinder linear position sensor

A dual temperature valve positioned in a bypass passageway can move to an open position when two temperature conditions are met. When opened, the dual temperature valve can allow warm fluid from a first line to mix with cold fluid from a second line to heat the same. The valve is preferably utilized in an engine fuel system and positioned in a bypass passageway extending between a fuel supply line and a fuel return line. In this application, the dual temperature valve can prevent possible fuel transfer problems, such as cold start gaseous circulation.

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East Peoria, IL, United States of America

Bradly G Duffer