Soil slicing spade bit and machine using same

Details Soil slicing spade bit and machine using same Soil slicing spade bit and machine using same

2007-08-29

2010-11-30

Beach, Thomas A (Department: 3671)

Excavating

Digging edge

C037S411000, C172S703000

Reexamination Certificate

active

07841112

ABSTRACT:
Soil is captured into a bowl attached to a frame of a scraper machine by maneuvering the machine while a cutting bit attached to the bowl slices through the underlying soil. The bowl is supported on the frame, and the soil cutting is accomplished via a spade bit attached to the bowl at a cut opening. The spade bit has a cutting edge with a forward protrusion flanked by swept back segments. A top surface of the spade bit may be contoured with a central ridge flanked by a twist contour surface to urge soil towards opposite sides of the bowl.

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