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. 22, 2000
Filed:
Mar. 02, 1998
Zeuna-Staker GmbH & Co., KG, Augsburg, DE;
Abstract
A tube junction is produced having at least two inlets and an outlet, and at least one bend between the two inlets by providing a forging die with a first recess contoured to hold a bent tube piece. A second recess opens into the first recess and, terminates in a moveable counterpunch. A tube piece having two inlets is bent to bring the two inlets into positions relative to each other generally similar to relative positions of the inlets in a finished tube junction. The bent tube piece is placed within the forging die, and pressurized internally to bulge the tube piece wall into the second recess and form a neck for the outlet. Motion of the counterpunch away from the first recess is controlled as the neck forms under pressure in the second recess.