The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 10, 2004
Filed:
Feb. 16, 2001
Kenneth C. Altekruse, Appleton, WI (US);
Ronald W. Colling, Kaukauna, WI (US);
Illinois Tool Works Inc., Glenview, IL (US);
Abstract
A MIG welding gun contact tip has a cylindrical section with a predetermined outer diameter adjacent one end, and frusto-conical surface adjacent the other end. Threads are rolled from the cylindrical section outer diameter between the cylindrical section and the frusto-conical surface. The threads major diameter is larger than the cylindrical section outer diameter, and the threads minor diameter is less than the cylindrical section outer diameter. In a preferred embodiment, the cylindrical section outer diameter is approximately 0.350 inches, the threads have a major diameter of approximately 0.375 inches, and the threads are stub acme threads with a pitch of 14 threads per inch. The contact tip is assembled to a diffuser having mating threads and a frusto-conical surface that engages the contact tip frusto-conical surface when the contact tip has been turned a single turn into the diffuser.