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:
Sep. 06, 1983
Filed:
Jul. 01, 1981
Laszlo A Gombas, Evergreen, CO (US);
Other;
Abstract
A continuous rotary machine for roll flanging the ends of cylindrical container bodies transports the container bodies in a star wheel while applying a roll flanging tool head to the end portion of the container body in two stages. In the first stage, the tool head forms a small flange that acts as a stress ring to maintain the cylindrical body in circular configuration at the open end, and the stress ring is ironed. In the second stage, the tool head advances by a greater distance to form a larger portion of the flange, and this flange is ironed. Both ends of a cylindrical container body may be simultaneously flanged by this method, in which case the opposite flanging heads rotate in opposite directions at substantially the same speed. The rotary apparatus provides a spindle/ram assembly on a turret for supporting and moving the flanging heads. A cam operates the axially movable ram portion and is located radially outside the ram for greater accuracy in the cam profile. The turret is accurately maintained on a main shaft of the machine by a two rib supporting structure to assure radial alignment and by a locking key with expandable body in a keyway to assure axial alignment.