Abstract: Disclosed are a railroad switch device for moving railroad switch points. The railroad switch device comprises a switch housing having a first switch operation unit coupled to a first spring unit and a second switch operation unit coupled to a second spring unit to move the first switch operation unit and the second switch operation unit independently; two sensing units, each connected with each of the first switch operation unit and the second switch operation unit to detect a connection status of the first switch operation unit and the second switch operation unit; and a hydraulic manifold to control the movement of the first switch operation unit and the second switch operation unit.

Abstract: Disclosed are a railroad switch device for moving railroad switch points. The railroad switch device comprises a switch housing having a first switch operation unit coupled to a first spring unit and a second switch operation unit coupled to a second spring unit to move the first switch operation unit and the second switch operation unit independently; two sensing units, each connected with each of the first switch operation unit and the second switch operation unit to detect a connection status of the first switch operation unit and the second switch operation unit; and a hydraulic manifold to control the movement of the first switch operation unit and the second switch operation unit.

Abstract: Disclosed is a vertical axis wind turbine air concentration tower with reduced radar cross section. The air concentration tower has a polygonal outer perimeter, a pivot located at each vertex of the polygonal outer perimeter, and an inwardly-positioned rudder blade operatively connected at each pivot. Each inwardly positioned rudder blade has a first wind-neutral position, and is pivotable through a plurality of angles that adjust based on an incoming wind direction, such that the incoming wind is channeled to the vertical axis wind turbine, which is located approximately at a center area of the polygonal outer perimeter. A radar absorbent material is applied to the vertical axis wind turbine air concentration tower to reduce the radar cross section. The air concentration tower is designed to provide higher wind speed to the vertical axis wind turbine than the surrounding ambient air.

Abstract: Disclosed is a vertical axis wind turbine air concentration tower with reduced radar cross section. The air concentration tower has a polygonal outer perimeter, a pivot located at each vertex of the polygonal outer perimeter, and an inwardly-positioned rudder blade operatively connected at each pivot. Each inwardly positioned rudder blade has a first wind-neutral position, and is pivotable through a plurality of angles that adjust based on an incoming wind direction, such that the incoming wind is channeled to the vertical axis wind turbine, which is located approximately at a center area of the polygonal outer perimeter. A radar absorbent material is applied to the vertical axis wind turbine air concentration tower to reduce the radar cross section. The air concentration tower is designed to provide higher wind speed to the vertical axis wind turbine than the surrounding ambient air.

Abstract: A railroad switch device for moving railroad switch points. The device includes a hydraulic unit having a hydraulic manifold coupled to a hydraulic pump integrated with an electric motor via a pressure pipe, where the hydraulic manifold is also coupled to the hydraulic pump via a hydraulic oil reservoir and a return pipe, and the hydraulic manifold is coupled to a hydraulic double-rod cylinder to provide forward movement and reverse movement of a point rod. Also included is a mechanical target to automatically indicate the position of a point rod, and a plurality of spring units to produce a continuous thrust force for holding the railroad switch points closed in forward position and reverse position, wherein the plurality of spring units control the target rotation to 90 degrees.

Abstract: The switch machine disclosed uses electro-hydraulic power to move the throw rod against the resistance of redundant mechanical springs and the switch point, for half of its stroke. Once the switch points have moved past mid-stroke the spring force in the machine is released and assists in the closure of the switch points against the stock rail. All hydraulic force is removed when the power unit is turned off. The redundant spring assembly holds the switch points firmly against the stock rail with 2000 lbs of holding force. This machine can be described as a power operated spring switch.

Abstract: A railroad switch device for moving railroad switch points is provided. The device includes a hydraulic unit comprising a hydraulic manifold, a hydraulic cylinder to provide constant forward movement and reverse movement, and a hydraulic circuit unit. The railroad switch device also includes a mechanical target to automatically indicate the position of a point rod, where the hydraulic unit is coupled to the point rod. Additionally, the railroad switch device includes a plurality of spring units to produce a continuous thrust force for holding the railroad switch points closed in forward position and reverse position, where the plurality of spring units control the target rotation to approximately 90 degrees. A plurality of proximity sensors detect the point rod position, and a power unit supplies hydraulic power to the hydraulic unit for moving the hydraulic cylinder.

Abstract: Disclosed is an air concentration tower for a vertical axis wind turbine. The air concentration tower has a polygonal outer perimeter, a pivot located at each vertex of the polygonal outer perimeter, and an inwardly-positioned rudder blade operatively connected at each pivot. Each inwardly-positioned rudder blade has a first wind-neutral position, and is pivotable through a plurality of angles that adjust based on an incoming wind direction, such that the incoming wind is channeled to the vertical axis wind turbine, which is located approximately at a center area of the polygonal outer perimeter. The air concentration tower is designed to provide higher wind speed to the vertical axis wind turbine than the surrounding ambient air.

Abstract: Disclosed is a vertical axis wind turbine apparatus. The apparatus includes carousal shafts operatively connected to a fixed turbine axis. The turbine blades are pivotally attached to carousal plates. The wind-facing turbine blades get exposed to a maximum area by stretching away from the fixed turbine axis, and the turbine blades that are not exposed to wind get folded inside toward the fixed turbine axis. The stretching and folding of the blades is affected by timing and restricting shafts, which emerge from the offset timing shaft. The present construction reduces the drag caused by turbine blade exposure in negative wind direction and increases energy production by simultaneously allowing maximum blade exposure in the positive wind direction. Furthermore, the apparatus in one embodiment includes counterweights to provide more stability to the offset shaft operation.

Abstract: The disclosed device provides improved hydraulic railroad switch points and presents a solution for avoiding the switch points from moving due to the spring force generated during manual installation or maintenance. The present device further provides a reliable point detection and indication mechanism. The device includes a trailable switching unit that enables a train to run through the trailable switching unit. A throw unit automatically adjusts plurality of rail and throw distances. The hydraulic cylinder provides constant forward and reverse movements, each movement in time defining an operation period. The hydraulic circuit unit increases the operation period. The center stroke unit blocks the hydraulic cylinder movement at the middle stroke during installation and maintenance. The mechanical target automatically indicates the position of a point rod. The spring unit produces the continuous thrust force that keeps the railroad switch points closed in forward and reverse positions.