Patent ID: 7707932

Claim:
In an agricultural baler including an elongate bale case defined by rectangularly arranged walls, the bale case having a crop inlet opening formed in one of the walls; a feeder mechanism communicating with the bale case through the inlet opening for charges of crop material to be transferred from the feeder mechanism into the bale case; a plunger reciprocable along an axis within the bale case to compress successive charges of crop material received from the feeder mechanism to form a bale, the plunger further having a generally rectangular cross section; the improvement therein comprising: a generally rectangular plunger head having a working face being oriented generally perpendicularly to said axis, said working surface being bounded by generally opposing and parallel upper and lower edges, and generally opposing and parallel inner and outer edges oriented generally perpendicularly to said upper and lower edges; a generally planar plunger tail connected to said plunger head adjacent to and extending from said inner edge in a first direction generally parallel to said axis for a first extension to a terminal end, said plunger tail having a top edge and a bottom edge, said top and bottom edges aligned parallel to said axis, said plunger tail further configured to reciprocally control entry of crop material through the inlet opening; an upper slider block connected to said top edge of said plunger tail adjacent to said terminal end, said upper slider block configured to slidingly engage an upper wall of the bale case; a tail extension connected to said plunger tail adjacent to said terminal end and said bottom edge, said tail extension extending therefrom in said first direction for a second extension to a tail end, wherein said second extension is longer than said first extension; and a lower slider block connected to said tail extension and configured to slidingly engage a lower wall of the bale case opposite of said upper wall.