Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 7213827 | Slider with brake plate A slider comprises a main board and a brake plate. The main board has a bottom face facing to and movable on a snow ground, and has a rear end raised to an angle relative to the snow ground. The brake plate has a connecting portion connected with the bottom face of ... | 05/08/2007 |
| 6988742 | Roller ski with electrically activated breaking mechanism The invention relates to a roller ski comprising a ski body (1) having a front and a rear end. A wheel (2) is arranged at each end. The invention aims at providing a roller ski that resembles skiing on snow. In accordance with the invention the roller ... | 01/24/2006 |
| 6971483 | Braking apparatus and method for making and using the same The present invention relates to an apparatus for controlling a velocity of an object, and more specifically, to a braking apparatus to be attached with a piece of snow-sporting-equipment. The braking apparatus comprises a brake bracket with a deployable braking sec... | 12/06/2005 |
| 6969074 | Ski-sled frame for mounting to snow skis A ski-sled frame that can be detachably mounted to a standard pair of skis by attaching the frame to a standard set of ski bindings. The ski-sled may include a seat for carrying the rider, a frame supporting the seat, handles for balance and that aid in steering the... | 11/29/2005 |
| 6880834 | Bi-directional snow sled with steering/braking levers A snow sled having a body with a top surface and a bottom surface, wherein the top surface is configured to receive a rider in at least one of a prone position and a seated position. The snow sled further including a brake mechanism pivotally mounted to the body for... | 04/19/2005 |
| 6637552 | Inflatable vehicle braking system A braking system for an inflatable vehicle, including a rigid housing attached to the deck of the vehicle and a braking lever pivotally attached to the housing. The lever is frictionally held in an inactivated position where the drag arm forming the lower... | 10/28/2003 |
| 6474899 | Device with pistons for locking in position linear elements movable translationwise Device for locking in position linear elements movable translationwise such as rods (51) of cylinders (50) and the like, comprising an external body (11) provided internally with a chamber (13) housing elements (21) for locking the rod (51), between which... | 11/05/2002 |
| 6401876 | Vehicle emergency brake and anti-jackknife system A ground-engaging emergency brake and anti-jackknife system for a vehicle comprises a brake skid which has at least one elongated substantially planar rigid base member, and upper and lower planar surfaces. A replaceable traction member is removably affix... | 06/11/2002 |
| 6354406 | Safety arrangement for a cable-supported component of a medical device In a safety arrangement of a cable-supported component of a medical device that can be adjusted via a cart at a column, a force acts on the cable via at least one clamping lever that is adjustably supported at the cart, and the cart is free for purposes o... | 03/12/2002 |
| 6283254 | Braking device for a motorized snow vehicle A braking device for a motorized snow vehicle having a front steering assembly with at least one steering column secured to at least one ski, and articulated in rotation around a spindle. The motorized snow vehicle further has a rear support assembly, equ... | 09/04/2001 |
| 6158556 | Vehicle safety mechanism for dissipating collision forces A safety system for dissipating the forces involved in a vehicle collision comprises two large friction platforms beneath the vehicle unibody or floor pan, with each platform having an actuator between the platform and the overlying vehicle structure and ... | 12/12/2000 |
| 5673772 | Snowmobile braking system A snowmobile ski-type runner braking system provides a braking "claw" at the trailing end of each snowmobile ski-type runner that can be activated by the operator from his console to pivot downward into digging engagement with the snow to help brake the s... | 10/07/1997 |
| 5667229 | Toboggan 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 |
| 5573257 | Flexible 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 |
| 5397154 | Stabilizer device for skiers A new and improved stabilizer device for skiers having two skis, each of the two skis has an upper surface and a lower surface. Two front supports are secured to a corresponding upper surface of the two skis. Two back supports have a triangular support br... | 03/14/1995 |
| 5069473 | Ski brake A ski brake including two wire-braking arms supported in bearing points on a ski, which wire-braking arms are, if necessary, combined to one wire bar. The ski brake can be swung from a braking position into a ready position, in which the ski brake is step... | 12/03/1991 |
| 4795183 | Brake for installation on a snow ski The invention relates to a braking for installation on a snow ski. Such mechanisms are known, for example, in the form of a ski binding. The ski binding allows the movement of the ski with the foot. However, it is not possible to achieve a braking effect ... | 01/03/1989 |
| 4544179 | Climbing device for skis A climbing device for skis has a member with a ski receiving aperture therethrough. The member has a deformed shape where the aperture can slidably fit over a tail end of the ski to a position rearwards of a binding on the ski. The member is resiliently b... | 10/01/1985 |
| 4376545 | Ski brake A ski brake, which is mounted on the ski and provided with two brake arms, one on each side of the ski, which brake arms by spring action can be turned to a catching position, in which the brake arms extend downward, substantially perpendicularly to the s... | 03/15/1983 |
| 4349209 | Snow shuttle A snow shuttle for use in winter recreation upon hills and the like in which the shuttle includes a forward steering section, a frame area pivotally connected thereto, a seating area disposed upon the frame, and a braking apparatus similarly carried on th... | 09/14/1982 |
| 4311215 | Brake for a slide coaster sled A brake surface is provided for slide coaster sleds in which the brake surface is configured to be an elongated surface of much greater length relative to the width. The braking surface is particularly useful for use on wet slide surfaces because the fore... | 01/19/1982 |
| 4296840 | Tractor pull sled A tractor pull sled including a weighted pan movably supported on a frame intermediate the forward and rearward ends. The frame is supported by a plurality of ground engaging wheels, at least one of which is coupled to and actuates a pan support assembly ... | 10/27/1981 |
| 4271762 | Pleasure vehicle and a transportation system utilizing the same A pleasure vehicle which is to be used on a trough-shaped downhill track, includes a vehicle body and a leg support, extending frontwardly therefrom. A plurality of support elements support the vehicle on the downhill track for movement down the track. A ... | 06/09/1981 |
| 4256319 | Toboggan A snow toboggan, or a flat bottomed sled, has a body with a curved forward portion. At its aft end, the sled is outfitted with a pair of hinged drag panels, each hinged independently to the body of the sled. On the underside of each panel is disposed one ... | 03/17/1981 |
| 4246846 | Downhill sledding system A sledding system having a track installed on a ski slope in the summer has U-shaped track sections with a flat bottom and substantially upright sides which serve to retain a driver controlled sled sliding on the track. Braking is provided by extendable s... | 01/27/1981 |
| 4221170 | Monorail mountain slide A monorail mountain coaster for recreational transportation along an inclined path on a hill or mountain comprising a channel disposed on and spaced from the path, a chassis frame moveable along the channel, a coaster shell resiliently mounted on the chas... | 09/09/1980 |
| 4219207 | Ski supported vehicle A maneuverable ski machine is provided having a seat frame supported by spaced skis and individual manual controls are provided for swinging the skis about vertical axes into "snow plow" stopping or turning positions. Banking devices automatically bank th... | 08/26/1980 |
| 4168843 | Snow sled A snow sled having braking and steering means on a toboggan-like main body having a substantially thin, flat main portion and a forward arcuate portion, said main body extending continuously from front to back and from side to side. Runners depend downwar... | 09/25/1979 |
| 4018455 | Braking device for skis Ski braking devices are described for braking skis when they become accidentally detached from skiers' boots so as to bring the skis to rest in safe positions without hurting the skiers or other persons. Each described device has a frame with spaced paral... | 04/19/1977 |
| 4007692 | Braking device for sleds for sliding paths A braking device for sleds, according to which rollers are used as braking elements which by means of an actuating element are moved from a non-braking position into a braking position while being pressed against the surface of the sliding path for the sl... | 02/15/1977 |
| 3973785 | Sled A dual braking system is provided for high speed sleds in which the center of gravity of the operator is placed between fore and aft brake shoes, which are operated simultaneously by the operator without the need for shifting positions. Thus, the brake sy... | 08/10/1976 |
