Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 7762564 | Ski sledge A description is given of a ski sledge having a swiveling front ski (1) with steering means (6), two essentially mutually parallel rear skis (2, 3) and a seat (4) connected via one or more rods (7) to the steering means, where the ... | 07/27/2010 |
| 7726667 | Bicycle for use on snow A snow bike has a frame which can be either a custom frame or an existing bicycle frame. A pair of footrests consisting of two rods extending perpendicularly from the frame at a location usually set for the pedal means of a bicycle provides a user with a way of rest... | 06/01/2010 |
| 7559558 | Snow sled A snow sled comprising a seating portion that includes a lightweight space frame having a suspension-type seat stretched among the space frame. The sled further includes a steering portion and articulated steering mechanism that links the steering portion to the sea... | 07/14/2009 |
| 7552930 | Snow sled A snow sled for use by a seated rider includes a body section, a seat section having an underside for engaging the snow and a top side for receiving the seated rider, the seat section attached to the body section, a foot section having an underside for engaging the ... | 06/30/2009 |
| 7547023 | Method and apparatus for control of a collapsible gravity powered snow vehicle A gravity powered snow vehicle employing a crank 5 and steering mechanism 4, able to twist a sliding element 21 along its length, and enabling intuitive and direct control over the vehicle to increase performance and agility. Twisting the slidin... | 06/16/2009 |
| 7537221 | Snow-sliding vehicle A snow-sliding vehicle including a bearing rear runner and a directional front runner to which is connected a steering column pivoting in a sleeve firmly attached to the upper end of a stiff frame connecting both runners, and the lower end of which is attached to a ... | 05/26/2009 |
| 7360617 | Snowmobile with reinforced frame structure for improved engine support A snowmobile comprises a left-right pair of skis, an engine and a track belt provided on a vehicle body. The track belt is driven by the engine, and the skis are steered by an operation on a steering handlebar. The vehicle body frame is formed by connecting intermed... | 04/22/2008 |
| 7350787 | Vehicles and methods using center of gravity and mass shift control system A center of gravity (C/G) control system for a vehicle includes sensors to measure the center of gravity shift and mass shift of the human body in relation to the vehicle, a controller to determine outputs, a dynamically adjustable vehicle system, and a power supply... | 04/01/2008 |
| 7278642 | Snow 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 |
| 7249647 | Snowmobile steering and suspension for improved performance in turns A snowmobile steering mechanism adapted to place higher pressure on the outside ski than on the inside ski when the snowmobile enters and exits turns, said steering mechanism being adapted to include the suspension in the steering action of the snowmobile causing th... | 07/31/2007 |
| 7240908 | Pogo-ski This invention relates to recreational equipment for use on a sliding surface, such as skis, snowboards, or other equipment for use by a person such as a skier, snowboarder or water-skier. This invention provides a pogo-ski comprising a ski and a post thereon which ... | 07/10/2007 |
| 7232133 | Snow sled with dual-mode braking system Disclosed is a snow sled with brake pedals that can be actuated operated either independently or cooperatively by foot pressure or by manual cable-brake control levers, to press the brake shoes into the snow surface over which the sled is traveling, thereby braking ... | 06/19/2007 |
| 7223152 | Wind propelled rolling toy Provided may be a wind propelled rolling vehicle with a self-adjusting sail that may be substantially formed in a relatively small, single sheet of material, or assembled onto a standard chassis. The exemplary embodiments may utilize bushings to spread dynamic loads... | 05/29/2007 |
| 7182165 | Snow cycle A snow cycle includes a conventional motorcycle chassis having a set of steerable front forks and a rear swing arm, which normally mount front and rear wheels of the cycle, respectively. A snow track module is mounted to the rear swing arm and has an endless track d... | 02/27/2007 |
| 7159875 | Articulated-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 |
| 7150461 | Foldable skateboard A skateboard comprising an articulated structure having a foot platform, at least one forward and one rearward ground engaging wheel. The articulated structure is foldable between a skating position and a folded position. With the skateboard in the skating position,... | 12/19/2006 |
| 7137925 | Snowboard training device A device to assist a beginner in learning how to snowboard. The device connects to the top rear of the snowboard and consists of a base plate that connects to the snowboard, a rotational component that connects to the base plate and allows vertical and horizontal ro... | 11/21/2006 |
| 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 |
| 7104551 | Sliding device for snow sports A sliding device for snow is provided with a supporting slide (1) and a turning slide (2) arranged in front of the supporting slide. The smallest portion of said turning slide (2) is wider than the widest portion of the supporting slide (1 | 09/12/2006 |
| 7100927 | Articulated steerable sled This invention overcomes the disadvantages of the prior art by providing an articulated, multi-segment sled body having, on each segment, a pair of runners each having opposing convex side edges. These convex side edges allow turning to occur on each of the appropri... | 09/05/2006 |
| 7090227 | Ski sled with boot blocks and ride-operated weight transfer device for steering A ski sled with adjustable boot blocks and a rider-operated weight-transfer device for rider-controlled steering. The boot blocks are provided with fixed and/or variable angle adjustment devices for changing the angle of the ski bottoms with respect to the snow surf... | 08/15/2006 |
| 7090236 | Mounting system, sail, steering mechanism and frame for a landsailer A mounting system for a boom (14) of a landsailer (1) includes a resilient flexible member (12), at one end engageable with a rearward portion of the landsailer frame (2) and at the other end with the main sheet (13). A steering me... | 08/15/2006 |
| 7048654 | Collapsible structures Collapsible structures are disclosed having a central panel, a first support panel disengageably connected to the left side of the central panel, and a second support panel disengageably connected to the right side of the central panel. Each of the central panel and... | 05/23/2006 |
| 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 |
| 7014004 | Frame assembly for snowmobile A snowmobile has a body frame. A front frame is coupled with the body frame. The front frame is made of a casting. A pair of swing units are swingably supported by the front frame at first ends of the swing units. A pair of skis are supported by the swing units at s... | 03/21/2006 |
| 6994359 | Snow-type bike A ski vehicle including (a) a seat; (b) a steering mechanism for steering the ski vehicle; (c) a frame; (d) a forward ski member attached to the steering mechanism; (e) a rear ski member; (f) pivotal attachments for pivotally attaching the rear ski member to the fra... | 02/07/2006 |
| 6976550 | Front suspension for recreational vehicle A front suspension system for a recreational vehicle such as a snowmobile has a lower A-arm assembly and an upper suspension arm for connecting each front ski to the chassis of the recreational vehicle. The lower A-arm restrains the front ski from moving backward or... | 12/20/2005 |
| 6969076 | Hand steerable snow scooter A steerable snow 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. Pre... | 11/29/2005 |
| 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 |
| 6957818 | Hand 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 |
| 6942416 | Device for attaching a handle A device for attaching a handle or handlebar to a portable tool to be adjustable about two parallel axes in order to increase the range for the adjustments of position of the handle or handlebar relative to the tool. The device can also be used with existing tools. | 09/13/2005 |
| 6942050 | Snowmobile front suspension system and method The snowmobile having a longitudinal axis, a chassis, a pair of skis each having a steering spindle, and a suspension system. The suspension system comprises, for each ski, a first control arm pivotally mounted to the chassis for pivotal movement about a first pivot... | 09/13/2005 |
| 6935645 | Skateboard leash A skateboard leash that is to be held against the rider's feet when the rider is performing aerial maneuvers using the skateboard. The skateboard leash has a mounting strap which is to be wrappable transversely about the skateboard platform. A swivel joint is connec... | 08/30/2005 |
| 6935640 | Snow 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 |
| 6932368 | Apparatus for harnessing wind to drive a bicycle A sail attachment which when connected to the bicycle harnesses wind to drive the bicycle forward. The attachment is adapted to fit on the rear of the bicycle above its rear wheel and is securable to the bicycle seat. The attachment is provided with a wind receiving... | 08/23/2005 |
| 6929267 | Snow scooter and method of using snow scooter An apparatus is attachable to a conventional snowboard to convert the snowboard into a snow scooter having improved performance characteristics in comparison to those of the snowboard alone. The apparatus includes a member movable relative to the snowboard by either... | 08/16/2005 |
| 6926107 | Frame assembly for snowmobile A snowmobile has a frame assembly. The frame assembly has a front portion and a rear portion. The front portion has a frame member that extends over an engine compartment such that an engine would be disposed generally below the frame member. The frame member is pri... | 08/09/2005 |
| 6923280 | Obstacle traversing wheelchair The present invention provides a curb-climbing wheelchair having pivotal arm assemblies. The pivotal arm assemblies include at least one front caster and have the ability to rotate or pivot. The pivot arms rotate or pivot in response to moments generated by accelera... | 08/02/2005 |
| 6916028 | Collapsible compact carrier device with collapsible wheel construction A wheeled carrier device is provided which, in one embodiment, includes a plurality of foldable walls supported on a base member and movable between an erected state wherein the walls define a carrier space and a collapsed state wherein the walls are folded on top o... | 07/12/2005 |
| 6905128 | Maneuverable and brakeable high performance snow sled A maneuverable, brakeable, roll resistant high performance snow sled suitable for use on downwardly sloping terrain. The preferred embodiment of the sled embodies a tandem, mirror image, in-line suspension and shock absorbing system connecting the main frame member ... | 06/14/2005 |
