Gordon J Weidenfeller

US Patent:

40405974, Aug 9, 1977

Filed:

Jul 25, 1975

Appl. No.:

5/599145

Inventors:

Fred W. Pierson - Grand Rapids MI
Fred W. Pierson - Wyoming MI
Gordon J. Weidenfeller - Grandville MI

Assignee:

M&T Mfg. Co. - Grand Rapids MI

International Classification:

B22C 924
B28B 732

US Classification:

249134

Abstract:

A core holding structure for molds and method of making same. A hollow bushing is locked within a mold so positioned with respect to a cavity in the mold that a rod-like core may be mounted on the bushing to provide a bore for hollow members such as spouts used in the continuous casting of metals. The bushing effects proper spacing of the core from the walls of the mold so that the wall thickness of the finished article is controlled. The mold may be made from a single member or it may be made from a multiple piece mold. Special knock out plate members are used in connection with the one-piece molds to extend the life thereof.

US Patent:

42206189, Sep 2, 1980

Filed:

Jul 26, 1978

Appl. No.:

5/928169

Inventors:

Fred W. Pierson - Grand Rapids MI
Fred W. Pierson - Wyoming MI
Gordon J. Weidenfeller - Grandville MI

Assignee:

M & T Manufacturing Company - Grand Rapids MI

International Classification:

B29C 102

US Classification:

264219

Abstract:

A core holding structure for molds and method of making same. A hollow bushing is locked within a mold so positioned with respect to a cavity in the mold that a rod-like core may be mounted on the bushing to provide a bore for hollow members such as spouts used in the continuous casting of metals. The bushing effects proper spacing of the core from the walls of the mold so that the wall thickness of the finished article is controlled. The mold may be made from a single member or it may be made from a multiple piece mold. Special knock out plate members are used in connection with the one-piece molds to extend the life thereof.

US Patent:

41259319, Nov 21, 1978

Filed:

Apr 27, 1977

Appl. No.:

5/791517

Inventors:

Fred W. Pierson - Grand Rapids MI
Fred W. Pierson - Wyoming MI
Gordon J. Weidenfeller - Grandville MI

Assignee:

M&T Mfg. Co. - Grand Rapids MI

International Classification:

B21D 3900
B23P 1904

US Classification:

29455R

Abstract:

A core holding structure for molds and method of making same. A hollow bushing is locked within a mold so positioned with respect to a cavity in the mold that a rod-like core may be mounted on the bushing to provide a bore for hollow members such as spouts used in the continuous casting of metals. The bushing effects proper spacing of the core from the walls of the mold so that the wall thickness of the finished article is controlled. The mold may be made from a single member or it may be made from a multiple piece mold. Special knock out plate members are used in connection with the one-piece molds to extend the life thereof.