Abstract: The trailer hitch has a base frame adapted to be carried by a vehicle and a hitch frame adapted to engage the base frame. A power liftable actuator is attached to the base frame and the hitch frame for raising and lowering the hitch frame to engage the tongue of a trailer. A vertically arranged connecting pin is also attached to the hitch frame and is adapted to be moved in a vertical path of travel from an elevated uncoupled position to a lowered coupled position. A power operable actuator is connected to the hitch frame and the connecting pin for moving the connecting pin from an elevated uncoupled position to a lowered coupled position. In addition, the trailer hitch has a horizontally swingable tongue guide positioned alongside the connecting pin and the hitch frame. The horizontally swingable tongue guide is adapted to guide the tongue of a trailer into proper position for being connected by the connecting pin.

Abstract: A fluid actuator of the type for producing reciprocal movement is provided having a cylindrical housing adapted to be secured to a relatively stationary object. The cylindrical housing includes first and second end portions and respective first and second fluid ports positioned therein. A piston is disposed for relative movement within the cylindrical housing and defines first and second fluid chambers within the housing. The first fluid chamber is in communication with the first fluid port and the second fluid chamber is in communication with the second fluid port. A piston rod connects to the piston and extends outwardly from the first end portion of the housing. The piston rod is adapted to be connected to an object to be moved. A conduit communicates with the first fluid chamber through the first fluid port in the first end portion of the housing and extends longitudinally from the first fluid port alongside the housing to the second end portion of the housing.