For Bonding With Pressure (e.g., Resistance Welding) Patents (Class 219/78.01)
- Utilizing radiant energy (Class 219/85.12)
- With filler metal in circuit (Class 219/85.14)
- Electrically heated tool (e.g., electrodes, heaters, etc.) (Class 219/85.16)
- Furnaces or enclosures (Class 219/85.17)
- Wire lead bonders (Class 219/85.18)
- Machine for predetermined operation (Class 219/85.19)
- Fluxes or solders (Class 219/85.2)
- Solder preforms (Class 219/85.21)
- Methods (Class 219/85.22)
- With hand-manipulative portable devices (Class 219/86.21)
- With separately applied pressure and heat (Class 219/86.22)
- With welding pressure controlled by the work support (Class 219/86.23)
- With work orientation means (Class 219/86.24)
- With significant electrode support (Class 219/86.25)
- For one-face welding (Class 219/86.9)
- Multiple spot type (Class 219/87)
- Electrode positionable along fixed bus bar (e.g., reaction bar type) (Class 219/88)
- Fluid pressure actuated electrode (Class 219/89)
- Plier or tong type (Class 219/90)
- With condition responsive control of the welding process (Class 219/91.1)
- Methods (Class 219/91.2)
- With indicator (e.g., recorder) (Class 219/109)
- Controlled in response to current, voltage, or temperature (Class 219/110)
- Repeat or interrupted current systems (e.g., multiple welds, multiple heated weld) (Class 219/111)
- Stored energy discharge (e.g., inductive) (Class 219/112)
- With space-discharge tube control (e.g., thyratron, ignitron) (Class 219/114)
- Synchronous switching on and off (Class 219/115)
- With transformer (Class 219/116)