Modified power unit for snow plows

DETAILED DESCRIPTION The present invention provides a modification applicable to the lift piston-cylinder of a power unit of the character described above which enables the power unit to be mounted other than on the front of a vehicle and thus operable to control blade movements from a remote location such as within the engine compartment.
Advantageously, such a modification involves interchangeable parts in the basic integral power unit, whereby the latter can be readily adapted for mounting either on the vehicle front or remote therefrom.
Basically, such interchangeability involves the lift piston-cylinder unit and, more particularly, a sleeve assembly interchangeable with piston and sleeve components of the unit to provide hydraulic fluid flow through the cylinder when the unit is not front mounted.
Such fluid flow is directed from the cylinder to a lift piston-cylinder unit associated with the plow blade unit.
It is a principal object of the present invention to provide a modification for a hydraulic power unit for a vehicle mounted plow blade which provides increased versatility for the power unit.
A further object is the provision of a modification of the foregoing character which enables use of the power unit for direct or indirect blade displacement.
Another object is the provision of a modification of the foregoing character which enables selective use of the lift piston-cylinder of the unit for direct displacement of the piston associated therewith or for directing fluid flow to a remotely located piston-cylinder unit for displacement of the piston of the latter unit.
Yet another object is the provision of a modification of the foregoing character by which piston and piston sleeve components of the lift piston-cylinder of a power unit are replaced by an auxiliary sleeve assembly to convert the unit from one providing direct piston displacement to one providing fluid flow through the cylinder for use at a location remote from the power unit.