Abstract: A vehicle having a compactable walkway, including a supporting surface and a plurality of steps, pivotally coupled to the supporting surface, oriented, spaced, and positioned to provide a graduated walkway when in a deployed position and to lie substantially parallel to the supporting surface when in a retracted position. There is also a support member coupled to a distal end of each of the plurality of steps to enforce consistency of position of the plurality of steps between the deployed and retracted positions; a railing coupled to the support member; a motivator coupled to one of the plurality of steps and configured to direct the plurality of steps from the retracted position to the deployed position; a vertical support coupled to the vehicle for bracing; and a shell coupled to the railing for covering when plurality of steps are in the retracted position.

Abstract: A vehicle having a compactable walkway, including a supporting surface and a plurality of steps, pivotally coupled to the supporting surface, oriented, spaced, and positioned to provide a graduated walkway when in a deployed position and to lie substantially parallel to the supporting surface when in a retracted position. There is also a support member coupled to a distal end of each of the plurality of steps to enforce consistency of position of the plurality of steps between the deployed and retracted positions; a railing coupled to the support member; a motivator coupled to one of the plurality of steps and configured to direct the plurality of steps from the retracted position to the deployed position; a vertical support coupled to the vehicle for bracing; and a shell coupled to the railing for covering when plurality of steps are in the retracted position.

Abstract: A vehicle having a compactable walkway, including a supporting surface and a plurality of steps, pivotally coupled to the supporting surface, oriented, spaced, and positioned to provide a graduated walkway when in a deployed position and to lie substantially parallel to the supporting surface when in a retracted position. There is also a support member coupled to a distal end of each of the plurality of steps to enforce consistency of position of the plurality of steps between the deployed and retracted positions; a railing coupled to the support member; a motivator coupled to one of the plurality of steps and configured to direct the plurality of steps from the retracted position to the deployed position; a vertical support coupled to the vehicle for bracing; and a shell coupled to the railing for covering when plurality of steps are in the retracted position.

Abstract: An interior space expansion system for use with a structure needing collapsible and/or expandable space, including: a base structure having an aperture therethrough; a movable structure disposed within a central region of the base structure when in a sunken position and substantially exterior the base structure when in an elevated position; and a lifting system coupled to the base structure and the movable structure. The base structure is a trailer or recreational vehicle. The movable structure includes a cab a carriage and a footing. The lifting system couples to the footing and transitions the movable structure between the sunken and elevated positions. The lifting system is not substantially disposed within the central region of the base structure when the movable structure is in the elevated position. There is a cap member for covering the aperture when the movable structure is in the sunken position.

Abstract: A separator apparatus to separate less dense particulate material from dense particulate material has a tank for containing fluid which has sidewalls and a sloping bottom with upper and lower ends. A vertically oriented housing is secured to the tank and has an upper and lower end with the lower end being in the tank and the upper end extending above the tank. An auger means is mounted within the housing and extends the substantial length thereof. A discharge location is located in the tank adjacent the lower end of the bottom for removing dense objects therefrom. The housing has a discharge location at its upper end for discharging the less dense objects lifted from the tank by the auger apparatus. A spout is located at the discharge location for the housing and has a spout that has a wall tangential to the cylindrical housing for quickly and easily receiving less dense objects from the outer periphery of the helical flighting.

Abstract: The device of the present invention removes suspended solids from a liquid medium, such as particles in an oil-based sludge. The device includes a filter chamber having an inlet for introducing liquid into the chamber, with the liquid containing suspended solids. The chamber also has an outlet for releasing filtered liquid which is substantially free from suspended solids. The liquid coming into the chamber is forced through a filter element to remove the suspended solids therefrom. The removed solids are compressed in the chamber by a reciprocating piston. When a sufficient quantity of suspended solids accumulate within the chamber, a discharge valve is opened and the compressed solids are discharged from the chamber. The device is operated automatically by a computer, which controls a series of operation cycles, including normal filtering operation, compression of solids, purging of solids, and cleansing of the filter element.