Hammer

Details Hammer Hammer

2009-03-04

2010-10-26

Rosenbaum, Mark (Department: 3725)

Solid material comminution or disintegration

Apparatus

Rotary striking member or hammer

Reexamination Certificate

active

07819352

ABSTRACT:
A hammer for use in a rotatable hammermill assembly comprising a first end for securement within a hammermill assembly, wherein a rod hole is formed in the second end, wherein the rod hole is centered in the first end for engagement with and attachment to the hammermill assembly is disclosed. The hammer also has a second end for contact and delivery of momentum to material to be comminuted, wherein the second end includes at least two blades. A neck connects the first end to the second end. In some embodiments the thickness of the neck may be less than the thickness of the first end or of any of the blades. In some embodiments the rod hole is surrounded by one or more rod hole shoulders. In other embodiments a notch is positioned in the rod hole along the longitudinal axis thereof.

REFERENCES:
patent: 904908 (1908-11-01), Williams
patent: 1078650 (1913-11-01), Williams
patent: 1997553 (1935-04-01), Taylor et al.
patent: 3627212 (1971-12-01), Stanton
patent: 3738586 (1973-06-01), Fabert, Jr.
patent: 5377919 (1995-01-01), Rogers
patent: 5842653 (1998-12-01), Elliot
patent: 5904306 (1999-05-01), Elliot
patent: 6419173 (2002-07-01), Balvanz

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