IP Library Granted Patent US 7,271,366
Granted Patent B2
US 7,271,366 · App. 11/086,200 · Granted Sep 18, 2007

Welding gun contact tip

Assignee: M.K. Products, Inc.
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Quick Facts
Patent No.
US 7,271,366
App. No.
11/086,200
Granted
Sep 18, 2007
Kind
B2
Abstract

A contact tip for a welding gun includes an elongate body having a first end, a second end, and a first opening extending longitudinally between the first end and the second end. The elongate body has an outer surface and an inner surface. The elongate body has a second opening extending radially through a side portion of the elongate body between the outer surface and the inner surface. At least a portion of the second opening is configured to support a contact element. A contact element is configured to be supported within at least a portion of the second opening of the elongate body and extend at least partially into the first opening of the elongate body. A retention member is configured to couple the contact element with the elongate body.

Claims (34)

1. A contact tip for a welding gun comprising:

an elongate body having a first end, a second end, an outer surface, an inner surface defining a first opening extending longitudinally between the first end and the second end, the first opening being configured to receive a weld wire, and a second opening communicating with the first opening, the second opening extending between the outer surface and the inner surface, the second opening being configured to receive a contact element;

a contact element configured to be simultaneously positioned at least partially within the second opening and at least partially within the first opening; and

a retention member configured to couple the contact element with the elongate body, the retention member comprising an elastomeric continuous ring configured to surround the elongate body and having a generally circular cross-sectional shape in a radial direction.

2. The contact tip of claim 1 wherein the retention member has an annular shape.

3. The contact tip of claim 1 wherein the retention member has a toroidal shape.

4. The contact tip of claim 1 wherein the retention member comprises an O-ring.

5. The contact tip of claim 1 wherein the retention member comprises an elastic material.

6. The contact tip of claim 1 wherein the contact element has a generally spherical shape.

7. The contact tip of claim 1 wherein the contact element comprises a rod.

8. The contact tip of claim 1 wherein the contact element comprises a composite material.

9. A contact tip for a welding gun comprising:

an elongate body having a first end, a second end, an outer surface, an inner surface defining a first opening extending longitudinally between the first end and the second end, the first opening being configured to receive a weld wire, and a second opening communicating with the first opening, the second opening extending between the outer surface and the inner surface, the second opening being configured to receive a contact element;

a contact element configured to be simultaneously positioned at least partially within the second opening and at least partially within the first opening; and

a retention member configured to couple the contact element with the elongate body, the retention member comprising an elastomeric material forming a continuous ring for surrounding the elongate body, the ring having a circular cross-section in a radial direction.

10. The contact tip of claim 9 wherein the retention member has an annular shape.

11. The contact tip of claim 9 wherein the retention member has a toroidal shape.

12. The contact tip of claim 9 wherein the retention member comprises an O-ring.

13. The contact tip of claim 9 wherein the retention member comprises rubber.

14. The contact tip of claim 9 wherein the retention member comprises plastic.

15. The contact tip of claim 9 wherein the retention member comprises silicon.

16. The contact tip of claim 9 wherein the contact element comprises a composite material.

17. The contact tip of claim 9 wherein the contact element has a generally spherical shape.

18. The contact tip of claim 9 wherein the contact element comprises a rod.

19. The contact tip of claim 9 wherein the contact element elongate body comprises a groove extending circumferentially about the elongate body and configured to receive the elastomeric retention member during use.

20. A contact tip for a welding gun comprising:

an elongate body having a first end, a second end, an outer surface, an inner surface defining a first opening extending longitudinally between the first end and the second end, the first opening being configured to receive a weld wire, a second opening communicating with the first opening, the second opening extending between the outer surface and the inner surface, the second opening being configured to receive a contact element, and a groove defined in the elongate body;

a contact element configured to be simultaneously positioned at least partially within the second opening and at least partially within the first opening; and

a retention member configured to couple the contact element with the elongate body, the retention member comprising an elastomeric continuous ring configured to surround the elongate body, having a generally circular cross-sectional shape in a radial direction, and being configured to be self-centering within the groove over the second opening for directing a retention force transverse to a surface of a weld wire.

21. The contact tip of claim 20 wherein the retention member comprises an O-ring.

22. The contact tip of claim 20 wherein the retention member has a generally circular cross-sectional area.

23. The contact tip of claim 20 , wherein the groove is positioned on the back half of the elongate body.

24. The contact tip of claim 20 , wherein the groove is positioned on the back third of the elongate body.

25. The contact tip of claim 20 , wherein the groove is positioned on the back fourth of an exposed portion of the elongate body.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 22, 2005
From: KENSRUE, MILO M.
To: M.K. PRODUCTS, INC.
Reel/Frame 016403/0496 →
Continuity (2)
Provisional Application 6055956400 · Apr 5, 2004
Related Publication 20050230373A1 · Oct 20, 2005