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"That’s an amazing invention, but who would ever want to use one of them?"
President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
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| Number | Title | Issue Date |
| 5655785 | High performance in-line roller skate wheels High speed, light weight wheels are provided for in-line roller skates. The high performance wheels each have at least one bearing, a special hub with a light weight fiber-reinforced core, and a high performance tire. The core can comprise symmetrical cor... | 08/12/1997 |
| 5536074 | Light-generating wheel for an in-line skate A light-generating wheel for an in-line skate includes two side shells and an electric board sandwiched between the two side shells. The electric board has a plurality of light emitters protruding out of one of said two side shells to light on and off, i.... | 07/16/1996 |
| 5393078 | Skate with in-line wheels A skate including a chassis formed by an upper horizontal plate solidly joined to the sole of a shoe by fasteners and a lower part running perpendicular to the plate and including at least one lateral flange on which the wheels are disposed by transverse ... | 02/28/1995 |
| 5320417 | Roller skating wheel A wheel of a roller skate includes a plurality of circumferentially spaced apart generally axially extending curvilinear paths. A speed skater, traveling a predominately circular course with such wheels properly aligned on such skates, is able to use air ... | 06/14/1994 |
| 5294188 | Illuminated roller skate wheel A roller skate wheel having a conical cavity includes an insert housing arranged for complementary reception within the cavity. The housing includes a housing base plate, with the base plate including a socket to receive the wheel fastening axle structure... | 03/15/1994 |
| 5199727 | Steerable wheel assembly for a roller skate A steerable wheel assembly for use on a roller skate is disclosed. The wheel assembly consists of a wheel having a roller bearing inserted into each side thereof and a shaft installed between the roller bearings. The shaft has journals machined on each en... | 04/06/1993 |
| 5114166 | Wheeled coasting board A wheeled board for riding downhill over the ground. The board has a generally flat riding board which is supported by four wheels through carriage assemblies. The carriage assemblies are held to the board through springs and supported so that when the bo... | 05/19/1992 |
| 5058959 | Identification system for wheeled suitcases Problems arise when a traveler must quickly identify his suitcase from an array of similar suitcases, such as on a checked luggage carousel or traveling belt. Tags and labels bearing ownership information are normally not distinctive enough to help in the... | 10/22/1991 |
| 5048897 | Spark-producing mechanism for wheel assembly A spark-producing mechanism for wheel assembly comprises a plurality of flints, a fixing ring for the mounting of flints which closely fits to the shaft of the wheel, a grindstone which is inserted in the interior of the wheel. By rotating the wheel, the ... | 09/17/1991 |
| 5020621 | Electric motor powered skateboard with integral brakes An electrically driven brake controlled skateboard employing an electric motor and associated battery mounted on the bottom of its foot supporting board employs a pulley arrangement whereby the initial slipping of its belt acts as a clutch for transferrin... | 06/04/1991 |
| 4962968 | Skateboard hubcap retrofit assembly A skateboard hubcap for protecting the wheel bearings of a skateboard from environmental contamination, such as dirt, sand, and water. The invention also enhances the general appearance of the skateboard by concealing the axle nut and bearings. The skateb... | 10/16/1990 |
