Non-ferrous pitchfork for use in silo

Claim 1

A pitchfork for use in silos, comprising a tine portion and a shank portion, the former being constructed from a non-ferrous heavy metal having a high density for preventing creation of sparks when the tine portion strikes a compacted bulk material disposed in the silo and adding extra weight helpful in sinking the fork into compacted material, the tine portion including a base and a plurality of substantially parallel, straight tines extending codirectionally from the base, the tines being of different lengths terminating in free ends defining a concave arc opening toward the base of the tine portion, each of the tines having a substantially square cross section, with the free end thereof being pyramidal in shape for facilitating penetration of the tine into the compacted bulk material, the shank portion being integral with the tine portion, and forming a handle as a rigid extension of the tine portion terminating is a pointed tip spaced from the tine portion, and a continuous flute provided on and extending spirally along the longitudinal extent of the handle for forming an auger means arranged for dislodging the compacted bulk material prior to penetration of the material by the tine portion.