Abstract: A power transfer unit includes a first hydraulic circuit, a second hydraulic circuit fluidly connected to the first hydraulic circuit, a pump and motor assembly fluidly connected between the first hydraulic circuit and the second hydraulic circuit, an isolation valve arranged along the first hydraulic circuit and fluidly connected to an inlet of the pump and motor assembly. The isolation valve is movable between a closed position and an open position to prevent and enable high-pressure fluid flow to the inlet, respectively. An unloader valve is arranged along the second hydraulic circuit and fluidly connected to an outlet of the pump and motor assembly, and an orifice is arranged along the second hydraulic circuit and fluidly connected to the unloader valve to reduce back pressure in the second hydraulic circuit.

Abstract: A power transfer unit includes a first hydraulic circuit, a second hydraulic circuit fluidly connected to the first hydraulic circuit, a pump and motor assembly fluidly connected between the first hydraulic circuit and the second hydraulic circuit, an isolation valve arranged along the first hydraulic circuit and fluidly connected to an inlet of the pump and motor assembly. The isolation valve is movable between a closed position and an open position to prevent and enable high-pressure fluid flow to the inlet, respectively. An unloader valve is arranged along the second hydraulic circuit and fluidly connected to an outlet of the pump and motor assembly, and an orifice is arranged along the second hydraulic circuit and fluidly connected to the unloader valve to reduce back pressure in the second hydraulic circuit.

Abstract: An apparatus for covering an unused wall telephone jack assembly is disclosed, the apparatus additionally hosting one or more items such as a notepad, writing instrument, whiteboard, keys or picture frame. The apparatus has a frame that fits over the wall telephone jack assembly and conceals it. The apparatus is attached to the wall jack using either wall telephone jack screws or wall phone mounting screws located on the wall telephone jack assembly. Several embodiments and variations are presented; the one embodiment has a front plate and a back plate comprising the frame; another embodiment having the frame as a single unit. In the embodiments, an elastic ribbon mounted on the front of the frame that releasably supports a notepad, and a shelf mounted on the frame supports a writing instrument are included. The inventive concept applies to other unused wall-mounted electrical devices.