Abstract: Vertical axis windmill turbine assemblies, as well as methods, systems and components related thereto. In one illustrative embodiment, a central shaft is supported by upper and lower bearings allowing it to rotate. Upper and lower support plates are disposed on the central shaft and support a plurality of vanes that extend therebetween. Each vane may have a closed leeward side formed from at least two planar members that join at a central ridge and an open windward side. Generators may be operatively connected to the central shaft at the lower end and the upper end. Multiple vertical axis assemblies may be disposed on a planar platform. Where multiple assemblies are present, they may be positioned to optimize production based on prevailing wind directions and may include windmill and turbine assemblies optimized for different wind conditions. In some systems, the assemblies may be disposed in a linear array.

Abstract: Vertical axis windmill turbine assemblies, as well as methods, systems and components related thereto. In one illustrative embodiment, a central shaft is supported by upper and lower bearings allowing it to rotate. Upper and lower support plates are disposed on the central shaft and support a plurality of vanes that extend therebetween. Each vane may have a closed leeward side formed from at least two planar members that join at a central ridge and an open windward side. Generators may be operatively connected to the central shaft at the lower end and the upper end. Multiple vertical axis assemblies may be disposed on a planar platform. Where multiple assemblies are present, they may be positioned to optimize production based on prevailing wind directions and may include windmill and turbine assemblies optimized for different wind conditions. In some systems, the assemblies may be disposed in a linear array.

Abstract: Systems and methods for disposing of produced water as steam released into the atmosphere. After wastewater is prepared for disposal by suitable filtering and/or treatment, it flows into a preheating tank where it is heated prior to disposal by liquid filled preheating coils extending from the heating tank which are heated by burner boxes. From the preheating tank, the preheated water flows into evaporation coils, where it is heated above boiling and released as steam. Water flowing into the tank passes adjacent the evaporation and preheating coils near the burner boxes. The preheating coils may contain antifreeze which can be circulated to prevent freezing of the preheat tank when not in use or to maintain the temperature of the preheat tank. The system may be moved with the preheat tank filled with preheated water to facilitate the use another location.

Abstract: Systems and methods for disposing of produced water as steam released into the atmosphere. After wastewater is prepared for disposal by suitable filtering and/or treatment, it flows into a preheating tank where it is heated prior to disposal by liquid filled preheating coils extending from the heating tank which are heated by burner boxes. From the preheating tank, the preheated water flows into evaporation coils, where it is heated above boiling and released as steam. Water flowing into the tank passes adjacent the evaporation and preheating coils near the burner boxes. The preheating coils may contain antifreeze which can be circulated to prevent freezing of the preheat tank when not in use or to maintain the temperature of the preheat tank. The system may be moved with the preheat tank filled with preheated water to facilitate the use another location.

Abstract: Spare tire carrying systems including a connection tube that may be installed in a receiver tube attached to a vehicle. At a distal end of the connection tube is disposed a receiver for connection to drop hitch end. Rotationally attached to the upper surface of the receiver is a pivotable arm. A lateral support may be disposed at the distal end of the pivotable arm and an attachment structure for connecting to the rim of a spare tire may be disposed on the lateral support or on the pivotable arm. The pivotable arm may be raised and lowered with respect to the receiver and the system and may be retained in the raised position for travel.

Abstract: An adjustable receiver hitch system including a slide member that may be installed on a receiver tube attached to a vehicle, extending therethrough. Near the distal end of the slide member is disposed a rotationally pivotable bearing assembly. Interchangeable connection ends may be attached to the bearing assembly and are used to connect to a towed trailer. One interchangeable end may feature a height adjustment capability, while others may have fixed vertical heights. The system allows a user to adjust the attachment portion of the hitch in multiple ways to connect to a towed trailer to allow for attachment without an exact alignment between the primary vehicle and the trailer.

Abstract: An adjustable receiver hitch system including a slide member that may be installed on a receiver tube attached to a vehicle, extending therethrough. Near the distal end of the slide member is disposed a rotationally pivotable bearing assembly. Interchangeable connection ends may be attached to the bearing assembly and are used to connect to a towed trailer. One interchangeable end may feature a height adjustment capability, while others may have fixed vertical heights. The system allows a user to adjust the attachment portion of the hitch in multiple ways to connect to a towed trailer to allow for attachment without an exact alignment between the primary vehicle and the trailer.

Abstract: A trailer hitch jack is disclosed. The trailer hitch jack may include a jack housing tube, an extender tube, a drop leg tube, and a hitch engagement tube projecting orthogonally from the jack housing tube. The jack housing tube, extender tube, and drop leg tube may be coupled to one another and configured to telescope upon operation of a hand crank.