Bizarre Patents
A simulation environment for the sport of boxing utilizing a robotic machine interface system which carries a person
PatentStorm News
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 |
| 6070806 | Sleeper The sleeper (tie) comprises a body which has a variable cross section along its length and is made from reinforced polymer concrete with a dispersed reinforcement in the form of steel or synthetic fibres or both the one and the other together, which fibre... | 06/06/2000 |
| 4712735 | Prestressed concrete cross tie having increased fatigue life In a prestressed concrete cross tie, a layer of steel reinforcements are located at or near the neutral axis of the cross tie section to minimize fatigue stress fluctuations. Deviation from the neutral axis is not great enough to cause stress fluctuations... | 12/15/1987 |
| 4401479 | Apparatus and method for processing wire stand cable for use in prestressed concrete structures The apparatus and method for processing steel strand wire cable and the like for use in prestressed concrete is disclosed in which the outer surface of the cable produced has a substantial pure rust or hydrated oxide coating thereon enabling the cable to ... | 08/30/1983 |
| 4265400 | Concrete sleeper for track circuitry A concrete sleeper for track systems incorporating electrical circuitry, in which sleeper electrically conducting cables are embedded, and therefore concealed therein, with an assembly to allow electrical connection between the cables and associated track... | 05/05/1981 |
| 4179067 | Railway track hold-down hardware A base member, such as a cross tie, is molded of reinforced concrete or wood chips and resin. Depressions in the top of the base member are lined with pads of cushion material to seat the flanges of the rails. A pair of hold-down clips is seated on each p... | 12/18/1979 |
