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"I hate what they've done to my child...I would never let my own children watch it. "
Vladimir Zworykin, television pioneer ; Talking about an invention in which he played a critical role.
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| Number | Title | Issue Date |
| 7371988 | Methods for extending the life of alloy steel welded joints by elimination and reduction of the HAZ In one embodiment, the present invention provides a method for welding together two metal pieces, comprising buttering a surface of a first metal piece with a first nickel-based filler metal at a thickness sufficient to isolate a heat-affected zone in the first meta... | 05/13/2008 |
| 6207920 | Method and system for welding railroad rails A method of gas shielded arc welding steel rails spaced from each other to define a longitudinal gap therebetween comprises the steps of providing an elongated steel barrier plate across the gap at the bottom of the spaced rails, and filling the gap above... | 03/27/2001 |
| 6166347 | Method and system for welding steel rails A method for gas shielded arc welding steel rails spaced from each other to define a transverse gap comprising the steps of positioning an elongated steel barrier plate in the gap at the bottom of the spaced rails and filling the gap above the barrier pla... | 12/26/2000 |
| 6069333 | Method and system for welding railroad rails A method of gas shielded arc welding steel railroad rails spaced from each other to define a longitudinal gap comprises the steps of providing an elongated steel barrier plate across the gap at the bottom of the spaced rails, and filling gap above the bar... | 05/30/2000 |
| 5877468 | Method and system for welding railroad rails A method of gas shielded arc welding steel railroad rails spaced from each other to define a transverse gap, which method comprising the steps of providing an elongated steel barrier plate wedged into said gap at the bottom of the spaced rails and filling... | 03/02/1999 |
| 5773779 | Method and system for welding railroad rails Methods are disclosed for gas shielded arc welding steel railroad rails spaced from each other to define a transverse gap, one of which methods comprises the steps of providing an elongated steel barrier plate wedged into the gap at the bottom of the spac... | 06/30/1998 |
| 5704570 | Welded nose rail used for crossing A nose type rail member for a crossing member applied to a turnout or wayside switch system on the ground for a train and the like, is made of high carbon steel material containing 0.70 to 0.82 wt. % of carbon. The rail member is constructed by a pair of ... | 01/06/1998 |
| 5605283 | Weld joint between two rails arranged behind each other along a rail track Two rail sections are joined by a weld joint (5) between two rails (1,2) arranged one behind another in a lengthwise direction of a rail track (4) and a method for the production of this weld joint (5). The frontal ends (6,7) of the rails (1,2) which are ... | 02/25/1997 |
| 4216816 | Aluminothermic welding of austenitic manganese steel A method of aluminothermic welding of members of austenitic steel containing by weight 10 to 20% manganese, 0.5 to 1.5% carbon and 0 to 5% nickel, and particularly low carbon austenitic steels containing by weight 14 to 17% manganese, 0.5 to 1.5% carbon a... | 08/12/1980 |
| 4185773 | Method of manufacturing 12 to 14% Mn steel components with weldable end pieces Method of manufacturing steel components containing 12 to 14% by weight of manganese having an austenitic structure, said parts being provided with steel end pieces having a mainly austenitic structure permitting their junction by welding to components ma... | 01/29/1980 |
| 3942579 | Process for the aluminothermic welding of rails A process for the aluminothermic welding of rails in which the rail ends to be joined are surrounded by a prefabricated, dry refractory casting mold and sealed from the rails with plastic mold materials, such as, moistened sand; a reaction crucible is arr... | 03/09/1976 |
