Thomas J Krave

US Patent:

61832324, Feb 6, 2001

Filed:

Jan 11, 1999

Appl. No.:

9/228108

Inventors:

Todd A. Bequette - Geneva IL
Jeffrey C. Kelly - DeKalb IL
Thomas J. Krave - Aurora IL
Robert S. Porter - Batavia IL
Michael J. Dorband - St. Charles IL
Mark W. Green - St. Charles IL

Assignee:

AMSTED Industries Incorporated - Chicago IL

International Classification:

B29C 3106

US Classification:

425 78

Abstract:

A raw material delivery system is disclosed. It is used with a press of the type used to compact raw material in a die. The press has a horizontal table with an opening in which the die is held. A feed shoe is movable across the table between an extended position where a central bore of the feed shoe overlies the die and a retracted position. In one embodiment, a vertically movable feed tube is carried on a bridge, and has a passage through which raw material may pass. The vertically movable feed tube receives raw material from a vertically fixed feed tube received telescopically within the vertically movable feed tube. A valve is between the two feed tubes. A valve may be provided between the bridge and the feed shoe so that the raw material passes through this interface without being exposed to cross-ventilation. The vertically movable feed tube may be pivotally connected to the bridge so that the movable feed tube may be pivoted away from the bridge opening when it is desired to change the metal powder or the die. Both the fixed and movable feed tubes may be heated, and heated material may be received by the fixed tube.

US Patent:

58584153, Jan 12, 1999

Filed:

Dec 18, 1996

Appl. No.:

8/768977

Inventors:

Todd A. Bequette - Geneva IL
Jeffrey C. Kelly - DeKalb IL
Thomas J. Krave - Aurora IL
Robert S. Porter - Batavia IL
Michael J. Dorband - St. Charles IL
Mark W. Green - St. Charles IL

Assignee:

Amsted Industries Incorporated - Chicago IL

International Classification:

B29C 3106

US Classification:

425 78

Abstract:

A raw material delivery system is disclosed. It is used with a press of the type used to compact raw material in a die. The press has a horizontal table with an opening in which the die is held. A feed shoe is movable across the table between an extended position where a central bore of the feed shoe overlies the die and a retracted position where the central bore is aligned with a bore in a bridge. A vertically movable feed tube is carried on the bridge, and has a passage through which raw material may pass. The vertically movable feed tube receives raw material from a vertically fixed feed tube received telescopically within the vertically movable feed tube. A valve is between the two feed tubes. A valve may be provided between the bridge and the feed shoe so that the raw material passes through this interface without being exposed to cross-ventilation. The vertically movable feed tube may be pivotally connected to the bridge so that the movable feed tube may be pivoted away from the bridge opening when it is desired to change the metal powder or the die.