Swagelok Company

Kevin Silk

Richard A Ales

Michael Mussig

Andrew Creque

William Michael Ponikvar

David N Stafford

A fluid heater includes a heating circuit, a temperature monitoring circuit, a controller, and an overheat sensing element. The controller is disposed in a control unit and is in circuit communication with a temperature gauge and a power supply switch, the controller being configured to operate the power supply switch in response to feedback from the temperature gauge to maintain the heater at a setpoint temperature. The overheat sensing element is disposed in a heater housing proximate to a thermal fuse and is in circuit communication with the controller to provide an indication to the controller when the overheat sensing element reaches an overheat temperature lower than the critical temperature. The controller is configured to operate the power supply switch to reduce or shut off power to the heating element in response to receiving the indication that the overheat sensing element has reached the overheat temperature.

Electrical heater for flow control device

Purge gas apparatus and method for a welding system uses automatic purge gas flow control function, such as an MFC, to control ID and/or OD purge gas flow rate or purge gas pressure or both at the weld site.

Welding purge control using electronic flow control

A DC arc start function for a welder. The arc start function is realized using a universal input DC regulator coupled to a DC to DC converter that produces a regulated DC voltage that is sufficient to strike an arc at an electrode of the welder.

Growing community of inventors

Stow, OH, United States of America

Kevin Silk