A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7392749 | Locomotive propulsion system module for refurbishment of used locomotives A propulsion skid module useful for refurbishing locomotives is taught. In one embodiment, the propulsion skid module includes a skid base serving as a support for an engine; the skid base including at least two support members extending substantially the length of ... | 07/01/2008 |
| 6910428 | Undercar assembly for a railcar An undercar assembly for a railroad car. The undercar assembly has a structural member extending longitudinally between the longitudinal sides of the railroad car, where this structural member includes a pair of longitudinally extending beam elements transversely sp... | 06/28/2005 |
| 6182576 | Monorail system A monorail system for passenger and light freight transportation provides a support structure with an essentially planar top surface and a stabilizer guide rail having a vertical web portion supporting a head portion. The head guides a vehicle along the t... | 02/06/2001 |
| 5555816 | Self steering railway truck A self-steering wheel truck for use with a railway locomotive or powered transit car in which tractive force is transferred from the axles to the frame through traction rods and steering beams connecting with the end axles. The steering beams are intercon... | 09/17/1996 |
| 4825774 | Underfloor construction of monorail vehicle and method of assembling the same The workability during fabrication of an underfloor construction of a monorail vehicle is improved by reducing the steps of fabrication. An underfloor construction of a monorail vehicle comprises truck enclosures detachably mounted at positions where truc... | 05/02/1989 |
| 4765250 | Locomotive and motorized self-steering radial truck therefor An arrangement for locomotives and other railway vehicles having steerable or self-steering railway trucks, particularly motorized locomotive trucks, which incorporates axle height transfer of loads from the axles to the frame through connecting rods and ... | 08/23/1988 |
| 4088080 | Railway locomotive truck A six-wheel railway motor truck for swivelly supporting a locomotive body is connected to the same for the effective transmission thereto of draft and braking forces at a level at or near that of the rail whereby the vertical moment arm through which trac... | 05/09/1978 |