Abstract: A curved water slide segment is disclosed. The segment has a plurality of laminated layers with an outer fiber composite layer, an inner fiber composite layer and a spacer layer positioned between the outer and inner fiber composite layers. The spacer layer defines one or more thermally insulating pockets.

Abstract: A water ride is disclosed. The water ride has a flume adapted to have riders or ride vehicles travel from an initial location at a first elevation to a terminal location at a second elevation lower than the first elevation. The flume includes at least one sliding section wherein the riders or ride vehicles slide on a sliding surface of the flume and at least one floating section wherein the riders or ride vehicles float in the flume. The floating section is fluidly connected to the first sliding section and includes a plurality of flow-altering elements attached to and protruding from the flume.

Abstract: A brushless system for washing a large flat object having a length greater than a width, the width defining a cross-section, said system including a frame defining a longitudinal path and including a first end; a second end; and a wash chamber positioned between said first and second ends.

Abstract: A system for affecting motion of an amusement ride vehicle is disclosed. The system includes a channel and a plurality of fluid spray sources positioned to spray at least a primary fluid over the channel. For at least one of the fluid spray sources, the system is adapted to inject a secondary fluid into the primary fluid to modify at least one of a pressure and a velocity of the primary fluid. A corresponding method is also disclosed.

Abstract: A waterslide feature comprises a channel having a sliding surface and walls. The walls define a plurality of recesses. A nozzle extends through each of the recesses angled to spray water over the sliding surface. The nozzles are positioned to provide a flow of water to impact a vehicle sliding on the sliding surface. The nozzles are sized to provide a flow of water sufficient to affect motion of the vehicle. The vehicle may include an attachment to enhance the effectiveness of the flow of water.

Abstract: A waterslide feature comprises a channel having a sliding surface and walls. The walls define a plurality of recesses. A nozzle extends through each of the recesses angled to spray water over the sliding surface. The nozzles are positioned to provide a flow of water to impact a vehicle sliding on the sliding surface. The nozzles are sized to provide a flow of water sufficient to affect motion of the vehicle. The vehicle may include an attachment to enhance the effectiveness of the flow of water.

Abstract: A system for affecting motion of an amusement ride vehicle is disclosed. The system includes a channel and a plurality of fluid spray sources positioned to spray at least a primary fluid over the channel. For at least one of the fluid spray sources, the system is adapted to inject a secondary fluid into the primary fluid to modify at least one of a pressure and a velocity of the primary fluid. A corresponding method is also disclosed.

Abstract: A waterslide feature comprises a channel having a sliding surface and walls. The walls define a plurality of recesses. A nozzle extends through each of the recesses angled to spray water over the sliding surface. The nozzles are positioned to provide a flow of water to impact a vehicle sliding on the sliding surface. The nozzles are sized to provide a flow of water sufficient to affect motion of the vehicle. The vehicle may include an attachment to enhance the effectiveness of the flow of water.

Abstract: Methods for making a threaded connection between an upper tubular and a lower tubular using an oilfield tubular spinner and a torque wrench, including holding the lower tubular with the torque wrench, frictionally engaging the upper tubular with the tubular spinner, operating a motor of the tubular spinner to spin-in and shoulder-up a tubular connection between the upper tubular and the lower tubular, establishing a threshold hydraulic system pressure that indicates a shouldered-up condition, monitoring, with a detection system, a hydraulic system pressure of the motor during spin-in and shoulder-up, and maintaining the threshold hydraulic system pressure to operate the motor for a selected period of time after the threshold hydraulic system pressure is reached. An oilfield tubular spinner for an oilfield tubular wrench is also provided.

Abstract: Methods for making a threaded connection between an upper tubular and a lower tubular using an oilfield tubular spinner and a torque wrench, including holding the lower tubular with the torque wrench, frictionally engaging the upper tubular with the tubular spinner, operating a motor of the tubular spinner to spin-in and shoulder-up a tubular connection between the upper tubular and the lower tubular, establishing a threshold hydraulic system pressure that indicates a shouldered-up condition, monitoring, with a detection system, a hydraulic system pressure of the motor during spin-in and shoulder-up, and maintaining the threshold hydraulic system pressure to operate the motor for a selected period of time after the threshold hydraulic system pressure is reached. An oilfield tubular spinner for an oilfield tubular wrench is also provided.

Abstract: Spin-in and spin-out apparatus and methods are presented wherein an oilfield tubular spinner used in combination with a wrench detects the shouldering-up of tubulars during make-up and tubular thread disengagement during break-out. Sensors are employed to quantify measurables indicative of shouldering-up and thread disengagement, the measurables being used to shutdown spin-in and spin-out operations. Thresholds are employed to detect measurable values of interest. Timers may be employed to monitor and control the spin-in and spin-out operations.

Abstract: A control arm for use in a vehicle suspension. The control arm includes a first connection, the first connection configured to secure the control arm to a first external device and a second connection, the second connection configured to secure the control arm to a second external device. An external force expands or contracts the distance between the first connection and the second connection within predetermined limits. The control arm also includes a mechanical bias, where the mechanical bias returns the distance between the first connection and the second connection to a set free length when the external force is removed.

Abstract: Automated make-up and break-up methods and apparatus for rotary oil well drilling are presented. The apparatus includes a drilling database storing tubular type records, a torque wrench having a spinner, and a controller. During make-up, the controller retrieves one or more tubular type records stored in the drilling database in order to configure the torque wrench and/or the spinner to connect an additional tubular section to a tubular string or to disconnect a connection between tubulars in accordance with tubular type parameters. Sensors are employed on various drill rig components and reported sensor values are monitored. Timers are started concurrent with the initiation of various make-up and break-out steps. Exceptions are thrown when sensor values are out-of-range or when steps take too long to complete. Advantages are derived from speeding-up drill rig operations.

Abstract: Automated make-up and break-up methods and apparatus for rotary oil well drilling are presented. The apparatus includes a drilling database storing tubular type records, a torque wrench having a spinner, and a controller. During make-up, the controller retrieves one or more tubular type records stored in the drilling database in order to configure the torque wrench and/or the spinner to connect an additional tubular section to a tubular string or to disconnect a connection between tubulars in accordance with tubular type parameters. Sensors are employed on various drill rig components and reported sensor values are monitored. Timers are started concurrent with the initiation of various make-up and break-out steps. Exceptions are thrown when sensor values are out-of-range or when steps take too long to complete. Advantages are derived from speeding-up drill rig operations.

Abstract: A backflow prevention device including an upstream shutoff valve configured to allow a user to control the water flow stream through the housing. The upstream shutoff valve includes an obstruction. The obstruction is configured to prevent water flow at a first position and allow water flow at a second position. The obstruction is also configured to rotate about an axis of rotation between the first position and the second position. The upstream shutoff valve also includes a seal. The seal is configured to sealingly engage a sealing surface in the housing at the first position. All points of engagement between the obstruction seal and the sealing surface are located downstream of the axis of rotation of the obstruction.