Patents in subclass Electric Heating/Arc Weld
Parent class: Electric Heating
| Number | Patent title | Issue Date |
|---|---|---|
| 07123990 | Gap welding process A gap welding process (10) for manipulating a movable robotic welder (30) for making a weld between two or more substantially immovable work pieces (51) using a higher level programming language (20). The gap welding process (10) performs... |
10/17/2006 |
| 07038159 | System and method for electroslag welding an expansion joint rail A system for butt welding expansion joint rails with an electroslag welding system. The electroslag welding system for butt welding the expansion joint rails comprises a control system. The method for butt welding the two expansion joint... |
05/02/2006 |
| 07032814 | Coded welding consumable Information pertaining to characteristics of consumables such as metal welding electrode wire and shielding gas and which characteristics are useful in connection with adjusting welding parameters in an arc welding process and/or... |
04/25/2006 |
| 06886470 | Rail welderhead shear apparatus A flash butt rail welding welderhead combines in a single unit, the ability for the three functions of rail pulling, flash butt forging and maintaining the "after forged" displacement without any change in platen position such that... |
05/03/2005 |
| 06787726 | Rail welding apparatus incorporating rail restraining device, weld containment device, and weld delivery unit A rail restraining, robotic welding and weld delivery device uses a frame for supporting a welding head with a clamp for restraining a first rail end and a second rail end and a base twist assembly for aligning said first end and second... |
09/07/2004 |
| 06708877 | Coded and electronically tagged welding wire Information pertaining to characteristics of metal welding electrode wire and which characteristics are useful in connection with adjusting welding parameters in an arc welding process and/or selecting between operating modes in a welding... |
03/23/2004 |
| 06570118 | Arc welding system and a process therefor An electric arc welding robot for welding a zone of a rail or the like comprises a movable, electric arc torch unit for operating the welding, first controlling means for controlling a first displacement of the torch unit substantially in... |
05/27/2003 |
| 06536660 | Inventory of consumables in electric arc welding process Information pertaining to characteristics of metal welding electrode wire and which characteristics are useful in connection with adjusting welding parameters in an arc welding process and/or selecting between operating modes in a welding... |
03/25/2003 |
| 06407364 | Method and system for welding railroad rails A method and system of depositing molten metal from an advancing welding wire to form a root pass of weld metal in the bottom of a gap between first and second metal members having generally flat base elements joined by a metal backing... |
06/18/2002 |
| 06396020 | Rail welding apparatus incorporating rail restraining device, weld containment device and weld delivery unit A rail restraining (1) and weld delivery device (100) uses a frame for supporting a welding head with a clamp (3) for restraining a first rail end and a second rail end and a base twist assembly (17) for aligning said first end and second... |
05/28/2002 |
| 06278074 | Method and system for welding railroad rails A method and system for automatically filing the narrow gap between facing end walls of adjacent first and second railway rails by depositing vertically spaced layers of molten metal in the gap with an electric arc welding torch using a... |
08/21/2001 |
| 06207920 | 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... |
03/27/2001 |
| 06201216 | Method and system for welding railroad rails A method and system of depositing molten metal from an advancing welding wire to form a root pass of weld metal in the bottom of a gap between first and second metal members having generally flat base elements joined by a metal backing... |
03/13/2001 |
| 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... |
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... |
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... |
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... |
06/30/1998 |
| 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... |
02/25/1997 |