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Class 280/22 - Flexible runner


Subclass of Class 280 - Land vehicles
Definition: Sleds in which the runners are hinged sections or of flexible
No. of patents: 36
Last issue date: 10/21/2008


NumberTitleIssue Date
7438298Steerable snow sled having multiple pivot points
A steerable snow sled has a forward section pivotably joined to a rear section, with metal runners attached to the bottom of both sections. A steering arm is attached to the forward section. The forward section also includes a pivot assembly that is attached to the ...
10/21/2008
7278642Snow sled
A snow sled (100) comprising a seating portion (116) that includes a lightweight space frame (104) having a suspension-type seat (108) stretched among the space frame. The sled further includes a steering portion (120) and an artic...
10/09/2007
7252301Snowmobile ski with alignment points
A snowmobile ski includes front and rear alignment points, which are preferably notches in the outer ribs of each of the skis. The notches facilitate alignment of the skis by receiving the end of a tape measure that is used to measure front and rear distances betwee...
08/07/2007
7243926Runner sled that is twistable during steering
A sled includes a pair of runners that are formed from a single, continuous, hollow plastic pipe. The runners are fixed to a platform at three locations: the rear ends of the runners curve upward and are attached to the rear end of the seat, while intermediate porti...
07/17/2007
7232134Steering ski for snow vehicle
A snowmobile has a pair of steering skis. Each ski has an elongated primary section that has a bottom surface. The bottom surface extends generally horizontally and warps upward at a forwardly end. A keel section extends along the primary section. The keel section p...
06/19/2007
7195254Adjustable ski for a snowmobile
A snowmobile ski includes an elongate ski element. The elongate ski element has a tip and a tail defining a length therebetween, top and bottom surfaces, first and second lateral edges extending longitudinally between the tip and the tail defining a width therebetwe...
03/27/2007
7159875Articulated-severable snowboard also useable as emergency snowshoes
An articulated snowboard includes first and second members that are joined at a first end by an articulation mechanism that permits vertical offset between the members while preserving parallel orientation of at least one of a longitudinal axis through each member a...
01/09/2007
7021636Convertible 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
6957818Hand steerable sports scooter
A steerable sports scooter including a bi-laterally pivotable independent forward portion, a hand-operable direction controller, and an independent rearward portion in secured communication with the forward portion and having a support surface upon which to stand. P...
10/25/2005
6955237Snowmobile having an adjustable ski stance
A snowmobile having an adjustable ski stance. The snowmobile including a central chassis from which an endless track is suspended and straddle type seat is supported. A pair of skis are coupled to a front suspension and are operatively linked to a handlebar assembly...
10/18/2005
6955236Snowmobile ski
A snowmobile ski with a pair of outboard keels and laterally projecting, upwardly slanting, lateral wings attached proximate the outboard keels is disclosed. A ski of this structure has improved flotation and resistance to side slippage in turns. ...
10/18/2005
6935640Snow scooter with rear mounted foot actuated brake
A improvement to a snow scooter having a longitudinal axis, a stand-on area, a back portion rearward of the stand-on area, a handle, and at least one gliding surface having a flat portion defining a plane. The improvement includes a brake plate, operable with a foot...
08/30/2005
6854743Articulated steering sled
A sled having left and right runners pivotably attached to front, center and rear cross members. A central longitudinal member is axially pivotably attached to the front and rear cross members. When rotated, the central longitudinal member moves the central cross me...
02/15/2005
6692009Snowmobile ski with offset runner and keel
A snowmobile ski includes a bridge adapted to connect to a ski leg of a snowmobile, a ski body having an inner lateral edge, an outer lateral edge, a top surface adapted to be connected the bridge, and a bottom surface adapted for moving over snow, a keel...
02/17/2004
6619676Vehicle snow ski system
A vehicle snow ski system for creating a preload force upon a front portion of a ski in combination with a resilient preload member. The method basically comprising an elongate ski body having a front portion in a position P1, applying a force upon a fron...
09/16/2003
6431561Snowmobile with asymmetric skis
A snowmobile having asymmetrical, high floatation skis. The snowmobile includes left and right steerable skis carried by a front suspension system that in turn is mounted to the snowmobile's chassis. Each ski has a downwardly extending longitudinal keel, ...
08/13/2002
6349950Snow sled
A sled (24) traversing a surface is provided. The sled includes a shell (22) having an upper surface, a lower surface, and spaced first and second ends. The sled also includes a steering assembly (24) coupled to at least the shell, elongate first and seco...
02/26/2002
6331008One piece molded ski apparatus
A flexible ski which is molded in one piece entirely of Ultra High Molecular Weight Polyethylene plastic. The adjustable flex ski is made up of a ski body which forms the majority of the invention and provides the base from which the other components are ...
12/18/2001
5865446Articulated two-section snow board
An articulated two-section snowboard has a first and second section joined together for twisting and oscillation. Each section has an upper surface, a lower surface and an outer portion and an inner portion. A flexible connector joins the inner portions o...
02/02/1999
5687977Steerable toboggan
A steerable toboggan for sledding on snow is disclosed which includes a support having a bottom gliding surface which slides directly on the snow, and a pair of runner arms carrying guide ribs which extend forwardly beyond the gliding surface. Each of the...
11/18/1997
5667229Toboggan with runners
The toboggan proposed has a device which adjusts the runner to allow the toboggan to negotiate curves, the adjustment being made by means of a steering member in such a way that the radius of curvature of the runners is the same as the radius of the curve...
09/16/1997
5618051Articulated two-section snowboard
An articulated two-section snowboard includes separate front and rear sections joined together for articulation and oscillation, each section having a binding for one foot. In a preferred embodiment, the joint between the two sections is achieved by one o...
04/08/1997
5601296Toboggan
A toboggan comprises a sheet-like coilable gliding part of glidable material having a cross-bracing along its front region as viewed in the direction of gliding. A pair of support portions for the feet of a seated user of the toboggan is provided spaced f...
02/11/1997
5573257Flexible runner sled
A coaster having a pair of longitudinally-extending and laterally-spaced flexible sled runners which support and define a path for the coaster along a ground surface. The coaster includes forward, intermediate, and rearward lateral struts extending betwee...
11/12/1996
5433458Dog sled
Disclosed is a dog sled that has improved steering capabilities, and includes spaced-apart sideframes and a plurality of rigid cross ties that hold the sideframes spaced apart in parallel relationship, the cross ties connecting to the side frames by flexi...
07/18/1995
5174591Extendable nesting ski support
An extendable nesting ski support structure as for supporting cargo including collapsed shelter devices for towing or pulling over ice, snow, and terrain. The skis are pivoted on brackets attached to the supported base and the brackets are atttached to th...
12/29/1992
4682781Sled skis
Each sled runner or rail from a conventional snow sled is provided with a pair of skis for attachment thereto. In particular, the section of the sled which bends or twists in response to the sled handle has a sled ski attached thereto which corresponds to...
07/28/1987
4530300Sled with a board-sailing rig
A windsurfing mechanism that comprises a plurality of gliding parts to permit travel at the surface of a medium and adapted to prevent the windsurfing mechanism from sinking into the body of the medium, said plurality of gliding parts being mechanically s...
07/23/1985
4530509Sled
A sled having a planar platform with tubular runners mounted for pivoting and sliding at points fore and aft of the platform. Because the runners can pivot and slide at the fore and aft points, the entire length of the runner can be bowed for increased ma...
07/23/1985
4466627Sled structure with runner connecting transverse link
A sled is provided for traversing a snow covered surface comprising an elongate frame and an elongate flexible runner pivotally mounted to each side of the frame. The runners are mounted onto the frame at a longitudinal position of the runner through whic...
08/21/1984
4326725Sleds
A wide runner, steerable, lightweight sled, and more particularly to a sled construction which incorporates the use of a pair of aluminum one piece runner extrusion, at least 21/2" wide, with recessed groove along bottom center and vertical sides for stif...
04/27/1982
4262919Articulated body-steerable sled with add-on modules
An articulated, body-steerable sled, particularly useful as a child's recreational sled, provides the user with a high level of protection against pinching and collision. In a preferred embodiment, the sled comprises two or more sled body units flexibly c...
04/21/1981
4243238Sled
A bobsled having a load supporting forward steerable member hingably connected to a load supporting trailing member is disclosed wherein the trailing member is spaced behind the forward member. The hinge connected members are adapted to turn and tilt rela...
01/06/1981
4225145Skateboard apparatus
A modified skateboard has runners attached to existing trucks. Top and bottom rails of the runners are jointed and slotted to allow changing runner length upon turning. Mounts are slotted to accommodate varying axle base lengths of skateboard trucks and t...
09/30/1980
4199163One-piece steerable sled
A steerable plastic sled molded in one piece and requiring no factory assembly labor. The sleds are readily stackable, one above the other and within each other to provide minimum bulk during shipment. The sled includes a rear sitting section and a front ...
04/22/1980
 
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