US 7,320,355 B2
Feeder with a tubular body
Udo Skerdi, Bendorf (Germany); and Georg Scheerer, Waldmorh (Germany)
Assigned to AS Lungen GmbH & Co. KG, Bendorf (Germany)
Filed on Jun. 06, 2005, as Appl. No. 11/145,798.
Application 11/145798 is a continuation in part of application No. 10/433236, filed on Jul. 24, 2003, granted, now 6,904,952.
Claims priority of application No. 100 59 481 (DE), filed on Nov. 30, 2000; and application No. 101 42 357 (DE), filed on Aug. 30, 2001.
Prior Publication US 2006/0000574 A1, Jan. 05, 2006
This patent is subject to a terminal disclaimer.
Int. Cl. B22C 9/08 (2006.01)
U.S. Cl. 164—359  [164/360] 41 Claims
OG exemplary drawing
 
1. A feeder system connected with a cast piece, comprising:
a first part, facing away from the cast piece, comprising a feeder or a feeder head which comprises a cavity to receive liquid metal during a casting process; and
a second part, facing towards the cast piece, comprising a tubular body, which connects the cavity in the feeder or feeder head to a cavity of the cast piece,
wherein the composition of the tubular body comprises cardboard; and
wherein the tubular body narrows in cross section of internal diameter towards its end facing the cast piece of mold cavity to thereby contribute to the formation of a breaking edge in the tubular body.