Abstract: A control assembly adapted for use on a vehicle to be controlled in response to variations in first and second control signals, comprising a stationary mounting member and a handle (33;57;69) adapted to be held in the hand of an operator. The handle is moveable in forward and reverse directions to generate the first signal and is moveable in left and right directions to generate the second signal. The control assembly comprises an elongated connector member (23,25;47,53;65) which by itself, or in cooperation with one of the stationary mounting member (11,41;61) and the handle, defines a first pivot axis (A1). When the handle is held in a normal manner in the hand of an operator, the first pivot axis (A1) is oriented generally perpendicular to the arm of the operator, and approximately intersects one of the hand and the arm of the operator.

Abstract: A tandem pump assembly of the type including a housing (H) defining a fluid inlet port (37) and a fluid outlet port (35), a first pump (11) disposed in the housing (H) and driven by an input shaft (19). The first pump (11) comprises a variable displacement, over-center pump, including first fluid pressure responsive means (31) for varying the displacement of the first pump (11) in response to the porting of a control pressure (47). The first pump has an inlet (67) in fluid communication with the fluid inlet port (37), and an outlet (65) in fluid communication with the fluid outlet port (35). A second pump (33) is disposed in the housing (H) and driven by the input shaft (19), said second pump having an inlet in fluid communication with the fluid inlet port (37), and an outlet in fluid communication with the fluid outlet port (35).