Two position adjustable nozzle
AssigneeIllinois Tool Works Inc.
InventorVictor Lubieniecki
Life of this patent
Estimating the term…
Abstract
A GMAW gun has a nozzle that is axially slidable over a gas diffuser. The nozzle is positively located in one of two different positions by a double counterbored insulator in cooperation with an insulative retaining ring. When the double counterbored insulator is installed in a first orientation on the gun, the nozzle abuts a first surface of the double counterbored insulator to provide a first positive stop. When the double counterbored insulator is installed in a second orientation, the nozzle abuts a second surface of the double counterbored insulator to provide a second positive stop. The various components of the gun are dimensioned such that a contact tip protrudes from the nozzle when the nozzle is at the first positive stop, and the contact tip is recessed into the nozzle when the nozzle is at the second positive stop.
Claims11
A two position adjustable nozzle for a gas metal arc welding (GMAW) gun comprising:
- a. a conductor tube;
- b. a gas diffuser assembled to the conductor tube;
- c. a contact tip having a first end joined to the gas diffuser and a working end;
- nozzle means for sliding axially along the gas diffuser;
- and
- e. insulator means installed on the gas diffuser for selectively providing first and second positive stops for the nozzle means relative to the contact tip working end.
A method of positively locating a nozzle having an outer diameter on a GMAW gun comprising the steps of:
- a. installing a double counterbored insulator on the gun in a first orientation;
- b. sliding the nozzle toward the double counterbored insulator;
- c. abutting the nozzle against a first surface of the double counterbored insulator at a first positive stop for the nozzle;
- d. installing the double counterbored insulator on the gun in a second orientation;
- e. sliding the nozzle toward the double counterbored insulator;
- and
- f. abutting the nozzle against a second surface of the double counterbored insulator at a second positive stop for the nozzle.
Dependencies are inferred from the claim text.