91results about "Centrifugal tracks" patented technology

Amusement apparatus which permits unusual compactness and easy transportation comprises a vehicle for accommodating users, the vehicle being suitable for following a path in space which comprises a component due to oscillation about a center of instantaneous rotation and a component, due to rotation about an axis oriented variously in space. The vehicle is supported on a support structure comprising two rails the shape of which defines the shape of the component due to oscillation of the vehicle.

Apparatuses and methods for providing a track that is operative to hold a shielding panel. A front support and a rear support are positioned on respective sides of the track. A pivot member is disposed beneath the front support and the rear support. The pivot member includes a portion that extends upwardly, between respective sides of the front support and rear support, so as to be secured to the track. An elastic member is positioned between the track and the rear support. The elastic member is operative to bias the track and the shielding panel in an upright position. The elastic member is also compressible by the track when the shielding panel is subjected to a lateral force.

Apparatuses and methods for providing a track that is operative to hold a shielding panel. A front support and a rear support are positioned on respective sides of the track. A pivot member is disposed beneath the front support and the rear support. The pivot member includes a portion that extends upwardly, between respective sides of the front support and rear support, so as to be secured to the track. An elastic member is positioned between the track and the rear support. The elastic member is operative to bias the track and the shielding panel in an upright position. The elastic member is also compressible by the track when the shielding panel is subjected to a lateral force.

A slide assembly and method of assembling a slide assembly are disclosed for use in conjunction with a recreation structure. The slide assembly includes a pair of side rails with internal grooves along lengths thereof and a slide bed located between the side rails with side margins thereof received within the grooves of the side rails. The slide assembly also includes reinforcements extending between the side rails underneath the slide bed, with ends of each reinforcement received within a recess in each of the side rails. Fasteners, such as screws, selectively secure side margin portions of the slide bed and ends of each reinforcement to each of the side rails. The method of assembling a slide assembly includes inserting each side margin of a slide bed into grooves of the side rails and attaching the slide bed and side rails to a recreation structure.

An apparatus for an a method of closing a fixed gap in an activity surface such as a turfed race-track is described. The apparatus comprises a movable turf tray having an upper surface with the same characteristics as the activity surface and means for guiding the tray into the gap so as to wedge the tray releasably in the gap and thereby to provide a substantially continuous activity surface. The apparatus can be used to provide a reconfigurable racetrack crossing with the permanent road gap in the racetrack being closeable by means of the movable turf tray. Overlapping edges of the turf tray provide a weight wedging action which provides reliable pressure joins. This also has application for creating reconfigurable turfed activity surfaces such as are used in sports stadia and the like.

A compact, hinged, foldably deployable ramp is provided in a base configuration which includes three evenly radiused sections which connect to a deck member and have a tube, known as a coping, separating the ramp from the deck. In the base configuration, a top section, mid section and lower section each have a pair of ladder structures which share a middle flange. The deck member includes a pair of angled leg members which are designed to provide support throughout the range of engagement of the ramp. Even size and radiusing of the sections enables continued extension of the ramp by adding sections in conjunction with longer support legs for the deck.

A molded plastic ramp is made in a one-step molding process. The ramp includes reinforced side and rear walls and a smooth radiused ramp surface. The ramp includes laterally extending side and rear supports that engage a ground surface and the forward portion of the ramp surface extends forward of the forward extent of the side supports.

A winter recreational park is provided for amusing and entertaining one or more participants, the park being intended for location in semi-arid or desert regions. The winter park includes a plurality of interconnected housing structures adapted to safely house the participants as well as winter facilities built with artificial snow and / or ice. The housing structures are adapted to maintain inside temperatures below the freezing point, despite the normally high outside temperatures. The recreational park further includes a plurality of active devices, such as skis or ice skates, adapted for use in each of the respective winter facilities to create the desired effect on ice and / or snow.

A modular ramp system contemplates two molded plastic ramps placed back-to-back with one another so that in a direction of travel, one would travel up one ramp and then immediately down the other. The ramps are interconnected by a spine including connectors interfacing with connectors provided on the facing surfaces of the ramps. In the preferred embodiment, the connectors consist of dovetail recesses and dovetail projections. The ramps also have connection structure on their lateral sides, so that other ramps may be assembled to the two back-to-back ramps to make a ramp that is incrementally wider. The ramp may consist of a plurality of ramp sections assembled together to create a ramp. A table is designed to be used with ramps and other components and includes openings to facilitate installation of a grind rail or a support rail. The table surface includes peripheral coping integrally formed with the table during manufacture. A grind rail system includes support legs with arcuate bottoms to facilitate safe support of a grind rail regardless of angulation. Curved sections of grind rails allow lateral and vertical curvature of an elongated grind rail configuration. Connectors are provided to interconnect adjacent grind rail sections.