Welding gun coolant control valve assembly

Details Welding gun coolant control valve assembly Welding gun coolant control valve assembly

1996-05-03

1998-02-17

Nguyen, Matthew V.

Electric heating

Metal heating

For bonding with pressure

137459, B23K 3702

Patent

active

057193673

ABSTRACT:
A coolant control valve assembly for an automatic welding gun. The assembly includes a manifold having a supply passageway and a return passageway for respectively supplying coolant to and receiving coolant from the welding gun. A controller is used to control the supplying of coolant and is coupled to a sensor which detects a reduction in coolant flow through the manifold relative to predetermined flow rate. A check valve is located in the return passageway of the manifold and closes in response to reduced flow.

REFERENCES:
patent: 4650152 (1987-03-01), Doutt
patent: 4742841 (1988-05-01), Vonderhaar et al.
patent: 5153405 (1992-10-01), Umeda
patent: 5378868 (1995-01-01), Burkhardt et al.
patent: 5471029 (1995-11-01), Simmons

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