Abstract: A partially immersible system includes fuel burning equipment such as an electrical generator located above a flood plain. A hydraulic fluid pumping system is located above the flood plain, and is connected to an immersible hydraulically powered fuel pumping system, which includes hydraulic motors connected to pumps connected to a fuel tank and to the fuel burning equipment to supply fuel to the fuel burning equipment.

Abstract: A partially immersible system includes fuel burning equipment such as an electrical generator located above a flood plain. A hydraulic fluid pumping system is located above the flood plain, and is connected to an immersible hydraulically powered fuel pumping system, which includes hydraulic motors connected to pumps connected to a fuel tank and to the fuel burning equipment to supply fuel to the fuel burning equipment.

Abstract: A convertible envelope including a front panel and a back panel joined to the front panel at least partially about an outer periphery thereof to define a cavity therebetween. The cavity has a mouth and the envelope has a pair of opposed outer edges defining a transverse dimension therebetween. The envelope further includes a closure flap pivotally coupled to the back panel along a closure flap pivot line to selectively cover the mouth. The closure flap has a closure flap tear guide line extending generally parallel to and spaced apart from the closure flap pivot line. The back panel has a back panel tear guide line extending generally parallel to and spaced apart from the closure flap pivot line. One of the back panel tear guide line or the closure flap tear guide line extends across the entire transverse dimension and the other one of the back panel tear guide line or the closure flap tear guide line extends a distance less than the entire transverse dimension.