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 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 personal flotation device, includes a shell defining a cavity having a first portion and a second portion for each receiving a buoyant element where the first and second portions are relatively moveable. Aa fastener for releasably interconnecting the first and second portions having a first and a second part such that when interconnected relative movement of the first and second portions is limited. A safety device is connected to the second portion and is associated with the first part of the fastener for redundant interconnection of the first and second portions in the event that the fastener is unintentionally disconnected.

Abstract: A personal flotation device, includes a shell defining a cavity having a first portion and a second portion for each receiving a buoyant element where the first and second portions are relatively moveable. Aa fastener for releasably interconnecting the first and second portions having a first and a second part such that when interconnected relative movement of the first and second portions is limited. A safety device is connected to the second portion and is associated with the first part of the fastener for redundant interconnection of the first and second portions in the event that the fastener is unintentionally disconnected.

Abstract: A personal flotation device is provided with a shell including a pair of elements joined to form a continuous pocket for receiving buoyant materials. The shell has a first end portion, a second end portion, and an intermediate portion. The first and second end portions have a first part and a second part. Each second part has a strap connected thereto, such that the straps extend away from the second parts to a first coupler defining a neck hole. The intermediate portion has a strap extending away therefrom to a second coupler. Connecting the first and second couplers defines a pair of opposing armholes.

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 children's play ride includes an elongated rigid vertical pole having an exterior surface and an elongated tubular housing with an inner surface snugly encircling the pole, the housing being moveable along the pole between an upper position and a lower position. The housing includes a support for a child and co-acting parts on the pole and the housing cause the housing to rotate about the pole only when the housing is moved from the upper position toward the lower position.

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.

Abstract: A trampoline pad assembly for securement to a trampoline of the type including a rebound surface suspended by springs from an elevated ring includes an annular top wall and an annular bottom wall secured together at congruent inner and outer edges to form an annular enclosure defining an interior pocket. At least one radial opening is formed in the bottom wall adjacent to the outer edge thereof which opening extends into the pocket. Resilient material is introduced into the pocket through the opening and an annular flexible skirt is secured to top wall adjacent to the outer edge thereof so that the skirt lies flat against the top wall. The skirt has a free edge and is foldable around those outer edges so that the skirt closes the opening thereby protectively enclosing the resilient material within the pocket and secures the pad assembly to the ring.

Abstract: A trampoline pad assembly for securement to a trampoline of the type including a rebound surface suspended by springs from an elevated ring includes an annular top wall and an annular bottom wall secured together at congruent inner and outer boundaries to form an annular enclosure defining an interior pocket. At least one opening is formed in the bottom wall, which opening extends into the pocket. Resilient material is introduced into the pocket through the opening and an annular flexible skirt is secured to top wall adjacent to the outer boundary thereof so that the skirt lies flat against the top wall. The skirt has a free edge which is shorter than the wall outer boundary and the skirt is foldable around those outer boundaries so that the skirt overlaps the opening thereby enclosing the resilient material within the pocket and secures the pad assembly to the ring.

Abstract: A mass flowmeter for flowing media, which operates according to the Coriolis principle, with one at least basically straight Coriolis line guiding the flowing medium, with at least one oscillation generator acting on the Coriolis line, with at least one sensor detecting Coriolis oscillations based on a Coriolis force and/or Coriolis forces, and with a compensation cylinder, the Coriolis line being located within the compensation cylinder and mechanically connected with the compensation cylinder. According to the invention, the mass flowmeter is designed and further developed so that the oscillation properties of the compensation cylinder essentially correspond to those of the Coriolis line, so that, during operation, the compensation cylinder and the Coriolis line oscillate opposite one another in the manner of a tuning fork.

Abstract: A children's activity and entertainment enclosure includes a housing a plurality of legs attached to the housing to support the housing at a selected elevation above a support surface and a flexible sheet material covering the housing and at least upper portions of the legs. A plurality of activity stations are present within the enclosure as are a seat for seating a child and a suspension mechanism for suspending the seat from the housing so that a child sitting in the seat with feet engaging the support surface can maneuver within the enclosure from one activity station to another.

Abstract: A collapsible shipping and storage container includes a collapsible exterior frame which supports a durable heavy-duty flexible bag within the confines of the frame. The bag has an open top through which parts may be tossed to fill the interior of the bag and an opening is provided in a wall of the bag for providing side access to the interior of the bag so that personnel can remove parts from the bag as they are needed. A closure is provided for that opening which can be opened from the top of the bag downward so that the bag may be accessed at progressively lower locations on the bag as the bag is emptied. When erected, the container frame is a sturdy structure so that a plurality of containers can be stacked. The frame is also collapsible so that when the associated bag is empty, the container can be collapsed and stacked with other similarly collapsed containers so that several collapsed containers can occupy the same space as a single erect container.

Abstract: An exercise device comprises a relatively large diameter ball having a pair of handles projecting from opposite sides of the ball. To use the device, one may grasp one or both handles and manipulate the device following specific exercise routines.