Coal plow cutter

Details Coal plow cutter Coal plow cutter

2008-07-01

2008-07-01

Singh, Sunil (Department: 3672)

Mining or in situ disintegration of hard material

Cutter tooth or tooth head

Planar type bit

Reexamination Certificate

active

07393061

ABSTRACT:
A plow cutter having a cutter foot that includes a cutter shank and a cutter head, the plow cutter including at least one face cutting edge, a plurality of wear-resistant face cutting edge pins each anchored in a respective recess located in the face cutting edge, at least one of the plurality being located on either side of a center plane of the cutter head, and a floor blade that includes at least one wear-resistant floor blade pin. Each of the plurality of the face cutting edge pins and the floor blade pin is made of a highly wear-resistant material, and has a conical pin head and a curved dome shape external surface.

REFERENCES:
patent: 4674802 (1987-06-01), McKenna et al.
patent: 4917196 (1990-04-01), Stiffler et al.
patent: 5143163 (1992-09-01), Stiffler et al.
patent: 295 037 43 (1995-03-01), None
patent: 29503743 (1995-07-01), None

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