Abstract: The present invention relates generally to hybrid versions of diesel-electric locomotives and improves the previous art by placing such batteries in standard intermodal containers which can easily be moved by readily available cranes built for the purpose of moving freight containers. The containers housing the batteries are standardized, so that different operators can use them by way of purchase or rental. The invention produces the following advantages. (1) After a descent from high altitudes, a full battery unit can be removed from a train and put in storage to reduce the weight of the train should no extra power be needed for the next leg of the journey. On particular long descents, full battery units can be replaced by empty ones several times to enable further energy recovery as the train continues its way down the mountain.

Abstract: The invention addresses the problem of water leaking through a roughly triangular shaped opening created between a shower curtain, a bathtub rim and an adjacent wall. It does so with a simple-to-use, one-piece device which forces the edge of the shower curtain into the point where rim and wall meet, thereby eliminating the opening. Since it is mounted on the bathtub rim, the device also prevents water from flowing along such rim towards the open side of the bathtub and onto the floor.

Abstract: This invention improves the previous art to accelerate an aircraft's wheels before landing to avoid skidding in that it shows how to (1) provide adequate power by using the compressed air and gases of the jet engine, (2) rely on existing information from onboard systems to precisely control wheel spin and (3) integrate the propulsion device into the wheel structure. The invention minimizes the additional weight necessary to rotate the wheels of a landing aircraft, limits the aerodynamic impact and allows the use of existing tires without modifications.