William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 7341261 | Skate A skate includes a shoe body and a skating device, wherein the sole of the shoe body comprises a front part, a middle bow part and a rear part. The skating device is mounted only under the middle bow part. Therefore, the toe of the front part and the heel of the rea... | 03/11/2008 |
| 7322581 | Caterpillar type bicycle The present invention provides a caterpillar type bicycle, comprising a bicycle frame, a saddle, a steering handle, and a sprocket pedal power mechanism, as well as a caterpillar type driving structure (A) and a multi-functional switchable front guide mechanism (B),... | 01/29/2008 |
| 7318591 | Blade runner assembly for skateboard A runner assembly housing a blade for an ice skateboard and rotatably connected to a truck assembly mounted to a bottom board surface thereof has an elastic biasing cord connecting a an elongate body housing a blade to the truck assembly or the skateboard for biasin... | 01/15/2008 |
| 7290774 | Wheel unit for ski-mounted vehicle A wheel unit mountable on a ski of a ski-mounted vehicle includes an actuating plate defining a wheel attachment section and a piston attachment section The actuating plate is pivotally attached to the ski intermediate the wheel and piston attachment sections for pi... | 11/06/2007 |
| 7243925 | Truck assemblies for skateboards A skateboard truck assembly (10) having a main body (11) for mounting to the underside of a skateboard deck, an axle (24) carrying skateboard wheels (25) and mounted intermediate its opposite ends to the main body (11) via a rotata... | 07/17/2007 |
| 7216889 | Bindings for ski boots for snowboards A binding (2) which retains a boot (11) on a snowboard (1) includes a base member (4). Rear walls (8a, 8b) and a rear arch (9) with a rear portion (21) of the base member support a heel of the boo... | 05/15/2007 |
| 7175187 | Wheeled skate with step-in binding and brakes The present invention teaches an apparatus and method for removably securing an article of footwear suitable for walking, running, or bicycling to a wheeled skate. Further, the present invention also teaches a brake device for use with a wheeled skate. In addition, ... | 02/13/2007 |
| 7163030 | Rectangular and square double wall ducting systems A duct structure (510), includes lengths of double wall square/rectangular duct (532) manufactured by pre-forming the duct in round cross-section (51) and then transforming the round cross-section into square and rectangular cross-sections utili... | 01/16/2007 |
| 7163209 | Snap-on ski attachment with brake for kick scooter A ski attachment kit for a kick scooter having a scooter steering assembly that includes a front fork configured for attaching a front wheel, a scooter body that includes a stand-on area and a rear fork rearward of the stand-on area configured for attaching a rear w... | 01/16/2007 |
| 7152865 | Heel adjustable skate A skate includes a holder frame, a boot, and a locking mechanism. The boot comprises a toe box and a heel portion, wherein the toe box is fixedly attached to the holder frame and wherein the heel portion engages the holder frame such that the heel portion is capable... | 12/26/2006 |
| 7152868 | Vehicle with variable guided pendular motion A vehicle (1) includes a chassis (2) which has a steering assembly (3) at one end and at least one wheel at the other end. The steering assembly includes a pair of steering wheels (4a, 4b) and an interconnecting steer... | 12/26/2006 |
| 7108270 | All-weather sled A convertible sled for use by a rider. The convertible sled includes a body, a mounting unit coupled to the body for coupling plural wheels or plural sledding members, and a steering unit moveably coupled to the body at the front portion of the body such that, when ... | 09/19/2006 |
| 7097195 | Recreational binding with adjustable suspension interface A binding system is provided that is effective for use on recreational device, such as a snowboard, and that is adapted to mate to, or that includes, a boot or other footwear worn by the user. In general, the binding system includes a base plate for support a rider'... | 08/29/2006 |
| 7070192 | Method and apparatus for stabilizing a skateboard for training novice users of skateboard A stabilizing pad for use with conventional skateboards for ready attachment and detachment to the skateboard between the skateboard wheels for stabilizing the skateboard and immobilizing the wheels to permit a novice skateboarder to practice the basic balancing, ma... | 07/04/2006 |
| 7059613 | Personal transportation device for supporting a user's foot having multiple transportation attachments A personal transport device including a transportation attachment, a foot platform situated above the transportation attachment and at least one fastener connecting the foot platform to the transportation attachment. The foot platform has two parallel extending surf... | 06/13/2006 |
| 7044485 | Elastomeric suspension system skateboard truck The Elastomer Suspension System Skateboard Truck is proposed for use in all styles of skateboarding. This new design is unlike any conventional skateboard truck. The truck incorporates an elatomer suspension system, which is a modification of the type used in automo... | 05/16/2006 |
| 7040634 | Snowskateboard A snowskateboard includes a support deck having an upper side and a lower side opposite the upper side. First and second trucks are mounted to the lower side. The trucks include rotatable yokes having axles. A set of first runners is disposed over the first yoke axl... | 05/09/2006 |
| 7021636 | Convertible coaster/sled with steering/braking handlebar A typically one-rider non-powered sports/recreational vehicle has a main body that can be easily converted between a wheeled coaster-wagon configuration and a snow-sled configuration with runners. Typically there are four wheels or four runners: two at front, steera... | 04/04/2006 |
| 6983941 | Snap-on ski attachment kit for kick scooter A ski attachment kit for a kick scooter having a scooter steering assembly that includes a front fork configured for attaching a front wheel, a scooter body that includes a stand-on area and a rear fork rearward of the stand-on area configured for attaching a rear w... | 01/10/2006 |
| 6955361 | Gliding sports equipment, such as a skate, a frame for such sports equipment, and a line of such frames A frame for an article of sports equipment, such as a frame for a skate, such as a roller skate, including a front upper portion provided to receive the front portion of a boot, and a rear upper portion provided to receive the rear portion of a boot. The front upper... | 10/18/2005 |
| 6932359 | Convertible ski-supported vehicle Universal wheel unit for mounting one or more wheels on the ski of a snowmobile. The wheel unit is a separate assembly that is detachably mountable on the ski or is an integral component of the ski. When retrofitting skis, the wheel unit is mountable on the kingping... | 08/23/2005 |
| 6916027 | Adjustable skate A skate comprises a chassis with a variable length boot disposed thereon. The variable length boot includes a toe portion fixedly disposed upon the chassis and a heel portion slidably disposed upon the chassis. The heel portion is slidable in relation to the toe por... | 07/12/2005 |
| 6910695 | Snowboard having an elevated deck A snowboard includes a slide board and a step board which are joined by a connecting member in a substantially parallel and spaced relationship. Because of the elevated position of the step board, the snowboarder gains a leverage in controlling the edges of the slid... | 06/28/2005 |
| 6910698 | Skateboards Skateboards that incorporate a curved or arched board with wheel trucks and a cross member that may be repositioned on the board, with the board either in an arched upward or arched downward orientation. The cross member may have projections on its underside for loc... | 06/28/2005 |
| 6866273 | Sliding device A sliding device provides a binding-free apparatus suitable for trick and other riding on snow, sand, ice and other surfaces. An elongated deck to support the rider is elevated from and attached to an elongated runner, which provides a surface that slides on the sno... | 03/15/2005 |
| 6824147 | Convertible ski-supported vehicle Universal wheel unit for mounting one or more wheels on the ski of a snowmobile. The wheel unit is a separate assembly that is detachably mountable on the ski or is an integral component of the ski. When retrofitting skis, the wheel unit is mountable on the kingping... | 11/30/2004 |
| 6783133 | Cycleski A ski attachment for the front forks of a cycle with an extension having a first and second end, the first end of the extension adapted to be disposed between the forks of the cycle; attachment structure presented by the first end of the attachment member for releas... | 08/31/2004 |
| 6773021 | Sliding device A spacer for a sliding device connects a deck to a runner. The spacer may allow relative rotation, pivoting and/or sliding of the deck and the runner. The sliding, pivoting and/or rotating may reduce the stresses experienced at the attachment points of the spacer an... | 08/10/2004 |
| 6626441 | Bicycle ski link assembly A bicycle ski link assembly 10 includes front and rear ski link brackets 20, 30, and left and right foot pegs 50, 52. Each of the two ski link brackets 20, 30 has an upper portion 22, 32 and a lower base portion 26, 36. The upper portion 22, 32 of each sk... | 09/30/2003 |
| 6554294 | Ski bicycle and ski system for a bicycle A bicycle including a frame having front forks and an attached rear wheel, a front wheel, a ski, an attachment assembly disposed on the ski and another attachment assembly disposed on the frame, wherein the frame is adjustable between a wheeled condition ... | 04/29/2003 |
| 6527282 | Convertible ski-supported vehicle Wheel unit to be semi-permanently mounted on the ski of a snowmobile. Wheels are readily deployable or retractable as conditions require. The wheel unit allows the snowmobile to be driven over gravel, dirt, and hardtop surfaces, without losing its ability... | 03/04/2003 |
| 6481725 | Skateboard and ski arrangement A combined skateboard and ski which includes a body board having two bottom riser pads, a ski, and cushions. Lock nuts and two mounting frames are provided on a top side of the ski for securing the ski to the riser pads of the body board. Each of the moun... | 11/19/2002 |
| 6416062 | Kit for converting a bicycle to a snow bike A kit for converting a conventional bicycle to a self-propelled snow bike. The kit includes a ski, an elongated member for mounting the ski to the front fork of a bicycle and a bias means for urging the ski to maintain a proper orientation as the ski pitc... | 07/09/2002 |
| 6311990 | Ice skateboard and runner therefor In the present invention, there is provided an ice skateboard comprising a bottom surface and trucks and axles mounted to the bottom surface. A set of runners is pivotally mounted to the axles. Each of the runners has a solid body, a bearing assembly, a m... | 11/06/2001 |
| 6217035 | Skate An adapter plate having a central portion attached to a shoe body includes a depending peripheral sidewall forming a recessed cavity with the central portion which detachably receives a complimentary shaped attachment plate forming a part of an interchang... | 04/17/2001 |
| 6065758 | Skate An adapter plate having a central portion attached to a shoe body includes a depending peripheral sidewall forming a recessed cavity with the central portion which detachably receives a complimentary shaped attachment plate forming a part of an interchang... | 05/23/2000 |
| 6039328 | Ice skate blade An interchangeable ice skate blade for use with a roller skate boot of the inline skate type includes a plurality of elongate bores or slots and a single circular bore or slot of a comparable size in the region of the edge of the blade remote from the ice... | 03/21/2000 |
| 5992861 | Adjustable foot equipment The adjustable foot equipment (10) is adaptable to ski boots, in-line roller skates, ice skates, water skis and snowboards, and includes a base (32) formed with a depending appendage (30) adapted to be joined with a support member (102). The appendage (30... | 11/30/1999 |
| 5984328 | Two-wheeled skateboard A two-wheeled skateboard includes a board which is generally planar between a first position and a second position. A front wheel assembly is attached to the board at the first position and consists of a single front wheel. The front wheel assembly includ... | 11/16/1999 |
| 5961129 | Quick-Release interlocking frame assembly for interchangeably mounting operative sports devices to a boot sole A quick-release interlocking frame assembly for interchangeably and operatively mounting at separate times in-line skate rollers and an ice skate blade to a boot sole, includes a first base attachable to a toe portion of a boot sole, a second base attacha... | 10/05/1999 |