US 10,888,913 B2
Container, and selectively formed shell, and tooling and associated method for providing same
Aaron E. Carstens, Centerville, OH (US); James A. McClung, N.E. Canton, OH (US); Paul L. Ripple, N.E. Canton, OH (US); Gregory H. Butcher, Naples, FL (US); and Patrick K. McCarty, Dayton, OH (US)
Assigned to Stolle Machinery Company, LLC, Centennial, CO (US)
Filed by Stolle Machinery Company, LLC, Centennial, CO (US)
Filed on Apr. 20, 2018, as Appl. No. 15/958,044.
Application 15/958,044 is a continuation of application No. 14/722,187, filed on May 27, 2015, granted, now 9,975,164.
Application 14/722,187 is a continuation in part of application No. 13/894,017, filed on May 14, 2013, granted, now 9,573,183.
Claims priority of provisional application 61/648,698, filed on May 18, 2012.
Prior Publication US 2018/0236523 A1, Aug. 23, 2018
Int. Cl. B21D 37/10 (2006.01); B21D 22/24 (2006.01); B21D 51/38 (2006.01); B21D 22/22 (2006.01); B21D 24/04 (2006.01); B21D 51/44 (2006.01)
CPC B21D 37/10 (2013.01) [B21D 22/22 (2013.01); B21D 22/24 (2013.01); B21D 24/04 (2013.01); B21D 51/38 (2013.01); B21D 51/44 (2013.01); Y10T 428/12389 (2015.01)] 17 Claims
OG exemplary drawing
 
1. Tooling for forming a shell, the tooling comprising:
an upper tool assembly including an upper pressure sleeve;
the upper pressure sleeve including a lower end defining a pressure concentrating forming surface;
a lower tool assembly cooperating with the upper tool assembly to form material disposed therebetween into the shell, the shell including a center panel, a circumferential chuck wall, an annular countersink between the center panel and the circumferential chuck wall, and a curl extending radially outwardly from the chuck wall;
wherein the upper tool assembly and the lower tool assembly move between a separated, first position, wherein the upper tool assembly is spaced from the lower tool assembly, and a forming position, wherein the upper tool assembly is immediately adjacent the lower tool assembly to selectively stretch the material of at least one predetermined portion of the shell relative to at least one other portion of the shell, thereby providing a corresponding thinned portion;
the upper tool assembly includes an tipper die shoe, a riser body, and a hybrid bias generating assembly;
the riser body coupled to the die shoe, the riser body defining a pressure chamber;
the upper pressure sleeve movably disposed in the riser body pressure chamber;
the upper pressure sleeve movable between an extended, first position, wherein the upper pressure sleeve lower end is more spaced from the upper die shoe, and a retracted, second position, wherein the upper pressure sleeve lower end is less spaced from the upper die shoe;
the hybrid bias generating assembly operatively coupled to the upper pressure sleeve; and
wherein the hybrid bias generating assembly controls the movement of the upper pressure sleeve as the upper tool assembly and the lower tool assembly move between the first position and the forming position.