Metal Heating (e.g., Resistance Heating) Patents (Class 219/50)
- Electric arc (Class 219/60R)
- Having internal support means (Class 219/61.1)
- Utilizing high frequency resistance heating (Class 219/61.2)
- With edge guidance means (Class 219/61.3)
- With adjustable electrode means (Class 219/61.4)
- With condition responsive control of the welding process (Class 219/61.5)
- Using three or more electrodes (Class 219/61.6)
- With cooling means (Class 219/61.7)
- Helical seam (Class 219/62)
- Rotary transformer part (Class 219/63)
- Container (e.g., cans) (Class 219/64)
- Nonrotary electrode (e.g., oscillating) (Class 219/65)
- Inside electrode (Class 219/66)
- Resistance heating methods (Class 219/67)
- Brazing or soldering (Class 219/85.1)
- By solid-state bonding (e.g., diffusion) (Class 219/78.02)
- Honeycomb (Class 219/78.11)
- With additional heating device (Class 219/78.13)
- With work cleaning means (Class 219/78.14)
- With work cutting means (Class 219/78.15)
- With work deforming means (e.g., tube sealing) (Class 219/78.16)
- With conveyer for workpiece (Class 219/79)
- Roller electrode (Class 219/81)
- By spot bonding (Class 219/86.1)
- Percussive (Class 219/95)
- Flash (Class 219/97)
- Butt (Class 219/101)
- Systems of current supply (Class 219/108)
- Methods (Class 219/117.1)
- Electrodes (e.g., structure) (Class 219/119)
- Using electron beam (Class 219/121.12)
- Using plasma (Class 219/121.36)
- Using laser (Class 219/121.6)
- Control of arc direction (Class 219/122)
- With ignition by retraction (Class 219/124.01)
- With gap control (Class 219/124.02)
- With automatic positioning of arc (Class 219/124.1)
- With predetermined welding operation (Class 219/125.1)
- Spot arc bonding (e.g., arc riveting) (Class 219/127)
- With working of bonding metal (e.g., by peening) (Class 219/128)
- Brazzing or soldering (Class 219/129)
- Including circuits for monitoring arc parameters (Class 219/130.01)
- Including arc-power supplies (Class 219/130.1)
- Welding (Class 219/136)
- With consumable electrode device (Class 219/137.2)
- Electrode holder (e.g., spring biased tong) (Class 219/138)