Abstract: An adjustable rock hold having a rotatable outer portion configured to rotate about an axis of the adjustable rock hold and rotate with respect to a climbing surface, wherein the adjustable rock hold is configured to be attached to the climbing surface; a plurality of gripping surfaces positioned around an outer edge of the rotatable outer portion; and one or more securing elements configured to secure the rotatable outer portion with respect to the climbing surface.

Abstract: An adjustable rock hold having a rotatable outer portion configured to rotate about an axis of the adjustable rock hold and rotate with respect to a climbing surface, wherein the adjustable rock hold is configured to be attached to the climbing surface; a plurality of gripping surfaces positioned around an outer edge of the rotatable outer portion; and one or more securing elements configured to secure the rotatable outer portion with respect to the climbing surface.

Abstract: A play center including a number of frames secured to each other to at least partially define substantially vertical walls of the outdoor play center, each frame having two or more openings, and a number of panels, each panel having a body thereof, the panels being receivable in selected ones of the openings. Each of the openings is partially defined by one or more elongate side walls of each frame. Each panel includes one or more flanges extending from the body over at least a receiving portion of the side wall. The play center also includes a number of fasteners for fastening the flanges to the receiving portions.

Abstract: A play center including a number of frames secured to each other to at least partially define substantially vertical walls of the outdoor play center, each frame having two or more openings, and a number of panels, each panel having a body thereof, the panels being receivable in selected ones of the openings. Each of the openings is partially defined by one or more elongate side walls of each frame. Each panel includes one or more flanges extending from the body over at least a receiving portion of the side wall. The play center also includes a number of fasteners for fastening the flanges to the receiving portions.

Abstract: A swing seat for a swing includes a seat shell and a reel movable between first and second axial positions relative to the seat shell. The reel is configured to be attached to a line, and when the reel is in the first axial position, rotation of the reel in one direction is prevented. When the reel is in the second axial position, the reel is capable of rotating in both directions. When rotating in the second rotational direction, the reel takes up the line, and when rotating in the first rotational direction, the reel extends the line. A release is used to move the reel from the first axial position to the second axial position.

Abstract: A knock-down quarter pipe for bikers, skateboarders and in-line skaters has a base, and a plurality of legs extending up from the base, the legs having lower ends lying in a common plane. A deck is supported by the legs at a selected elevation above the base, the deck having front and rear edges and a surface extending between those edges that is substantially parallel to the plane. A ramp extends from the front edge of the deck down to the plane, that ramp having a lower leading edge that is located in that plane and spaced in front of a base. Preferably, the base and at least the lower end portion of the ramp may be filed with a fluid medium to add weight to and lower the center of gravity of the quarter pipe. Preferably also, a rigid coping rail is located between the front edge of the deck and the ramp which can function as a grind rail.

Abstract: A knock-down quarter pipe for bikers, skateboarders and in-line skaters has a base, and a plurality of legs extending up from the base, the legs having lower ends lying in a common plane. A deck is supported by the legs at a selected elevation above the base, the deck having front and rear edges and a surface extending between those edges that is substantially parallel to the plane. A ramp extends from the front edge of the deck down to the plane, that ramp having a lower leading edge that is located in that plane and spaced in front of a base. Preferably, the base and at least the lower end portion of the ramp may be filed with a fluid medium to add weight to and lower the center of gravity of the quarter pipe. Preferably also, a rigid coping rail is located between the front edge of the deck and the ramp which can function as a grind rail.

Abstract: A knock-down quarter pipe for bikers, skateboarders and in-line skaters has a base, and a plurality of legs extending up from the base, the legs having lower ends lying in a common plane. A deck is supported by the legs at a selected elevation above the base, the deck having front and rear edges and a surface extending between those edges that is substantially parallel to the plane. A ramp extends from the front edge of the deck down to the plane, that ramp having a lower leading edge that is located in that plane and spaced in front of a base. Preferably, the base and at least the lower end portion of the ramp may be filed with a fluid medium to add weight to and lower the center of gravity of the quarter pipe. Preferably also, a rigid coping rail is located between the front edge of the deck and the ramp which can function as a grind rail.

Abstract: An adjustable jump bar stand for skaters, skateboarders and the like includes an elongated post, a base for receiving a lower end segment of the post so that the post is supported vertically and an elongated jump bar having an end swivelly and adjustably connected to the post so that the jump bar extends out horizontally from the post at a variable elevation thereon and can swivel about the post. The jump bar provides an obstacle over which skaters can jump while being forgiving enough to avoid injury to the skaters.

Abstract: An attachment for attaching the upper end of a swing device to a raised top bar. The attachment includes a pair of arcuate slide sections having opposite ends in mating engagement to form a circular slide, a U-bolt having a pair of parallel threaded end segments connected by a curved bridging portion slidably engaged in the slide, a generally V-shaped saddle bracket whose arms have first ends connected by a saddle, spaced-apart second ends containing through holes for receiving the end segments of the U-bolt and a pair of opposing sliders projecting from the bracket arms for slidably engaging in the slide, and at least one nut for threadedly engaging an end segment of the U-bolt. The attachment enables a chain or other swing suspension device that is secured to the bracket to pivot 360° around the top bar.

Abstract: An attachment for attaching the upper end of a swing device to a raised top bar. The attachment includes a pair of arcuate slide sections having opposite ends in mating engagement to form a circular slide, a U-bolt having a pair of parallel threaded end segments connected by a curved bridging portion slidably engaged in the slide, a generally V-shaped saddle bracket whose arms have first ends connected by a saddle, spaced-apart second ends containing through holes for receiving the end segments of the U-bolt and a pair of opposing sliders projecting from the bracket arms for slidably engaging in the slide, and at least one nut for threadedly engaging an end segment of the U-bolt. The attachment enables a chain or other swing suspension device that is secured to the bracket to pivot 360° around the top bar.

Abstract: A launch ramp includes a hollow body having first and second ends and upper and lower walls which converge to a relatively sharp edge at the first end of the body. Support legs are mounted to the body adjacent to the second end thereof, the legs being extendable an appreciable distance from of the bottom wall so that when the edge and the legs rest on a horizontal surface, the top wall is inclined at an appreciable angle relative to that surface. The hollow body defines a fluid-tight chamber which may be filled with a fluid substance to change the weight, inertial characteristic and stiffness of the ramp body.

Abstract: Obstacle apparatus includes at least one ramp for launching a bicycle, skateboard or rollerblade rider into the air. The apparatus may also include a second similar ramp and a bridge for releasably connecting the elevated ends of the two ramps in-line so as to produce an in-line obstacle over which riders may roll. The apparatus may also include a grind rail which may be releasably attached to the elevated end of one or both of the ramps so that the ramp/rail assembly may be used by skateboarders and the like to perform various acrobatic feats. The apparatus components are rugged and reliable yet they can be made in quantity at minimum cost. Furthermore, because of their unique designs, they may be shipped and stored in a minimum amount of space.

Abstract: A knock-down grind rail for skateboards and rollerblades is composed of at least two tubes held in axial alignment by a tubular insert inserted into opposing ends of the tubes. The tubes are clamped together end to end by a special, generally U-shaped clip having arms which are bent toward one another to form elbows. The free ends of the clip are inserted through holes present in the tubes adjacent the opposing ends thereof, the spacing of the hole being comparable to the spacing of those arm ends. As the clip arms are pushed into the tubes up to the elbows, the arms are sprung apart thereby exerting a clamping force on the tubes. Suitable supports are provided to support the tube above the ground or other support surface.

Abstract: A sound generating attachment for a slide of the type having an inclined sliding surface, a pair of raised sidewalls at opposite sides of said surface and a handrail extending up from one of the sidewalls. The attachment includes a weather-resistant housing having a top wall, a bottom wall and an end wall and a clamp for releasably attaching the housing to a slide sidewall. An electronic sound generator in the housing emits a plurality of different sound message a rotatable and depressable control knob projecting from the housing top wall is turned and pressed by a child using the slide.

Abstract: A convertible game table which can be used to play a SKEE-BALL type game, a re-bound hockey or shuffle board game and pool or billiards utilizing different-size playing areas spaced at different elevations above the floor.

Abstract: A swing ride capable of swinging motion about an elevated support. The swing ride includes first and second parts which move toward and away from one another during the swinging motion of the swing and a deformable chamber which is alternately compressed and expanded during the periodic motion of the swing. A fluidically operated toy is connected to one of the parts and a fluid conduit is connected between the deformable chamber and the toy to conduct fluid between the deformable chamber and the toy so that the toy is energized by a change in fluid pressure from the deformable chamber caused by the swinging motion of the swing ride.