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Assignee: Hedstrom Corporation


Location: Bedford, PA
No. of patents: 30

NumberTitleIssue Date
6782577Knock-down quarter pipe for skateboarders, bikers and in-line skaters
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 de...
08/31/2004
6669394Swing attachment
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 s...
12/30/2003
6551192Obstacle assembly for bikes, skateboards and rollerblades
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 ...
04/22/2003
6547221Knock-down grind rail for skateboards and rollerblades
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 cli...
04/15/2003
6542613Electronic sound generator attachment for children's slides
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 housi...
04/01/2003
6502819Convertible game table
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....
01/07/2003
6494787Children's stand up spinner ride
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 ...
12/17/2002
6482096Swing ride with bubble generator
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 ...
11/19/2002
6402662Trampoline safety pad assembly
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...
06/11/2002
6283894Trampoline pad assembly
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...
09/04/2001
6205865Mass flow meter
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 s...
03/27/2001
6178978Children's activity and entertainment enclosure
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 p...
01/30/2001
6105804Collapsible parts shipping and storage container
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...
08/22/2000
6068580Exercise device
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....
05/30/2000
6036604Children's activity toy
A children's activity toy, preferably in the form of a spring horse having a body composed of mirror-image, front and rear sections connected by a relatively narrow, downwardly curved bridging section which can serve as a seat for an infant or toddler. Th...
03/14/2000
5842927Children's slide with integral raceways
A children's slide has an elongated trough supported in an inclined position. The trough includes side walls which not only help to guide children down the slide, but also define inclined raceways for toy cars or the like which children can race down the ...
12/01/1998
5528875Wood play tower kit
A hardware kit for erecting a children's wood play tower of the type including a plurality of vertical support beams, a plurality of stretchers and a plurality of roof joists. The kit includes roof brackets, eave brackets and stretcher brackets and may in...
06/25/1996
5505664Articulated swing
A children's swing ride is composed of an articulated seating platform having an axis of articulation. A pair of hangers is connected to the seating platform on opposite sides of that axis and a pair of levers extends from the platform on opposite sides o...
04/09/1996
5393268Tandem swing
A children's swing has an elongated beam with opposite ends and a mid portion providing a seating platform for at least two children. Pivotally attached to the opposite ends of the beam are a pair of rigid rockers, each rocker having an upper end defining...
02/28/1995
5364312Play gym construction
A kit for assembling wood legs to form an A-frame to support the end of a cross beam for a children's play gym includes a trapezoidal frame bracket to connect the upper ends of the legs to each other and to the cross beam and a special frame brace for rei...
11/15/1994
5338127Play gym bearing cover
A bearing fitting for attaching a swing device to the crossbar of a play gym includes an axle for mounting to the crossbar, a hook including a shank, a closed loop at one end of the shank encircling the axle and an open loop at the opposite end of the sha...
08/16/1994
5338260Children's swing
A children's swing includes a rigid, upwardly curved seat which has a planar seating portion and side portions which extend generally perpendicular to the seating portion and define the opposite ends of the seat. A longitudinal channel is present in the u...
08/16/1994
5326326Children's swing
A children's swing has an elongated beam with opposite ends and a mid portion providing a seating platform for at least two children. Pivotally attached to the opposite ends of the beam are a pair of rigid rockers, each rocket having an upper end defining...
07/05/1994
5197926Swing connection guard
A guard for a swing connection comprised of a hook which hooks through the eye of a connector member includes a pair of rigid shells which are slotted at their edges to provide clearance for the hook and the connector member so that the shells can be clam...
03/30/1993
5197925Flexible swing seat and method of assembling same
A children's swing comprises a generally rectangular strap-like seat having a flat resilient main body and a pair of tubes extending along the underside of said body adjacent to the longitudinal edges thereof. A pair of hangers project from the opposite e...
03/30/1993
5163828Surfer swing
A swing comprises an overhead support, an elongated rigid platform having a longitudinal axis, a pair of mirror-image hangers, first and second spaced-apart pivots pivotally connecting the lower ends of the hangers to opposite ends of the platform substan...
11/17/1992
5054802Bicycle frame
A rugged but inexpensive bicycle frame comprises a tubular head post welded to the flattened forward end of a relatively large diameter tubular crossbar. The rear end of the crossbar is flattened laterally and provided with a concave rear edge. A tubular ...
10/08/1991
4966419Knock-down wheel assembly
A welded spoke wheel having a specially designed hub and knock-down crank shaft. The hub is a cylindrical tube with welded end caps. The crank shaft is assembled from a center shaft and two outer shafts. The outer shafts have radial tabs which engage axia...
10/30/1990
4621826Knock-down tricycle
A knock-down tricycle has its main structural parts made of stamped metal or molded components which are relatively inexpensive to fabricate and which, when disassembled, occupy a minimum volume allowing the tricycle to be shipped in a knocked-down condit...
11/11/1986
4562893Toy vehicle
A child's battery-operated ride-on toy vehicle includes a frame having at least three equal diameter wheels rotatively mounted to the frame at opposite sides thereof. The wheels at the front and/or rear of the vehicle at opposite sides of the vehicle are ...
01/07/1986
 
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