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...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 7414528 | Apparatus and method for improving ski jump safety An apparatus and method for the improving of ski jump safety comprises a first detector for detecting a skier entering a jump site, wherein the first detector produces a first signal, a second detector for detecting the skier exiting the jump site, wherein the secon... | 08/19/2008 |
| 7364170 | Wheel ski mount A wheeled cart, such as a shopping cart, has ski elements on the wheels thereof. The ski elements can be moved between stored and use positions. ... | 04/29/2008 |
| 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 |
| 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 |
| 7222866 | Child's wagon A child's wagon is provided with a mobile base portion and a body portion that define a large inner cavity for storing various articles. Head, neck and tail assemblies may be provided so that the wagon resembles a desired animal. A frame assembly provides the head a... | 05/29/2007 |
| 7121560 | Ski assembly for a stroller A ski assembly for a stroller for allowing more proficient movement through snow includes a ski attachment for a stroller assembly having a chair portion, a back portion, a plurality of wheels is attached to the chair portion. The attachment includes a leg having an... | 10/17/2006 |
| 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 |
| 7074003 | Helicopter moving device A helicopter moving device has a lever arm, a helicopter support arm to attach to a helicopter, and a wheel mounted to the lever arm, such that applying downward pressure to the lever arm causes a corresponding upward movement of the helicopter support arm about a p... | 07/11/2006 |
| 7070188 | Mechanism for selectively locking swingably mounted wheel assemblies A support frame having a plurality of wheeled assemblies, mounted at corners of the support frame, each wheeled assembly including a substantially identical mechanism for extending and retracting a respective wheel assembly. Each mechanism has a locking member which... | 07/04/2006 |
| 7017228 | Pneumatic locking swivel caster A pneumatic locking swivel caster comprises a swivel caster and a locking device which may be activated by fluid pressure. The swivel caster may be a dual wheel swivel caster. An improved theatrical prop or scenery element comprises a pneumatic locking swivel caster... | 03/28/2006 |
| 6934981 | Combination bassinet, changing table and bedside sleeper A combination bassinet, bedside sleeper and changing table apparatus including a supporting frame having a rocking feature convertible through adjustable locking casters for easy rolling. A fabric member comprised of sidewalls and a skirt is draped over the frame. T... | 08/30/2005 |
| 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 |
| 6805658 | Skateboard simulator A skateboard simulator provides a stable platform for wheeled skateboard-type actions. The simulator has a pair of spaced truck-like elastomeric support means mounted to a deck to simulate the response of a conventional skateboard to user actions. Spaced contact lob... | 10/19/2004 |
| 6450510 | In-line roller skate having adjustable toe portion A roller skate includes a frame having a slot and a lateral orifice formed in a front portion and communicating with each other, and a number of cavities formed around the orifice of the frame. A heel portion is secured on the frame. A toe portion include... | 09/17/2002 |
| 5908196 | Apparatus for roller skating and roller blading and method thereof A shoe type apparatus is disclosed comprising a roller skate assembly having at least four wheels coupled to a sole portion of the shoe type apparatus for roller skating, and an in-line skate assembly having another set of wheels coupled to the sole porti... | 06/01/1999 |
| 5636853 | Baby rocking carriage A mechanism is provided for extending and retracting wheels on a baby rocking carriage which includes two parallel arcuate beams, four base members each fixedly mounted on one distal end of each of the arcuate beams and having a passage and a cavity each ... | 06/10/1997 |
| 5464237 | Folding cart A folding cart can be unfolded from a flat, collapsed position to an open position. The cart has opposing front and back side walls which have ledges on their opposing faces, and opposing foldable walls hingedly secured to the front and back side walls. A... | 11/07/1995 |
| 5439237 | Snowmobile ski wheels The ski supports of a snowmobile are each provided with a plurality of wheel assemblies, with each wheel assembly arranged for pivoting relative to the ski support from a first position elevating the wheels above a top surface of each ski support to a sec... | 08/08/1995 |
| 5253825 | Aircraft ski An aircraft ski for attachment to the axle of the ground wheel of the aircraft includes a pair of rams moving the ski upwardly and downwardly from a retracted position to a deployed position. On each side of the ski is provided a respective lever which is... | 10/19/1993 |
| 4603869 | Helicopter ground handling wheel assembly A ground handling wheel assembly for coupling to a skid of a helicopter enables the helicopter to be moved on the ground. The wheel assembly has a main shaft, which has on each end a wheel shaft offset from and parallel with the main shaft. Wheels are rot... | 08/05/1986 |
| 4393953 | Snowmobile A snowmobile of the type comprising a conventional front ski assembly and endless track but also a rear ski assembly and characterized by the latter, being pivotally connected relative to the body of the snowmobile and adjustable in height relative to the... | 07/19/1983 |
| 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 |
| 4265461 | Combined plaything and receptacle for infants This invention discloses a combination of a vaulting box and a wooden horse used as means of plaything for infants, the interior of the vaulting box serving as a receptacle. The upper structural frames may all be received into the lower structural frames ... | 05/05/1981 |
| 4191391 | Shopping cart with auxiliary sled attachment The present invention provides a shopping cart of the two-wheel variety wherein an auxiliary sled attachment is provided, said attachment being adapted to be moved from one to the other of two selectable positions and to be retained in either of such posi... | 03/04/1980 |
| 4168841 | Conversion system for pedal operated cycles with improved rear wheel apparatus The specification discloses a conversion system for a pedal operated cycle to provide a pedal operated cycle for use on ice and/or a motor operated cycle for use on snow, both with improved rear wheel apparatus, wherein a regular bicycle can be converted ... | 09/25/1979 |
| 4163564 | Shopping cart skis A shopping cart having wheels is also provided with an attachment having skis allowing the same to be pulled over snow or other soft surfaces. The attachment comprises a pair of skis movable between a sliding position and a stowed position whereby the sho... | 08/07/1979 |
| 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 |
