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| Number | Title | Issue Date |
| 7360388 | Hollow stepped shaft and method of forming the same A hollow stepped article is formed from a solid blank to reduce the material cost, and cracking is prevented in a stepped portion of large diameter when a portion of the blank is deformed by its radial expansion. A hollow stepped shaft is formed by holding an upper ... | 04/22/2008 |
| 7325712 | Electrical drive-in tool having two component flywheel An electrical drive-in tool includes a driving ram (13) displaceable in a guide (12), and a motor-driven drive flywheel (32) for driving the driving ram (13) and having a first component forming at least a circumferentially arranged rim a... | 02/05/2008 |
| 4638540 | Method for manufacturing railway wheels A method for manufacturing a railway wheel with a base material, a more wear-resistant layer at the part of the flange facing the wheel tread, and a layer in the tread which gives a high friction between wheel and rail which is relatively independent of t... | 01/27/1987 |
| 4382324 | Method of making a light-weight, two-wheel set Cylindrical blanks are formed into wheels, each with an integral shaft; and one of the shafts is shrunk into the other one in order to complete the set. Each wheel may have an integral, outwardly extending bearing hub.... | 05/10/1983 |
