Inventors:
Jimmie L. Sollami - Herrin IL
Assignee:
The Sollami Company - Carterville IL
International Classification:
E21C 3518
Abstract:
A rotatable cutting tool for earth displacement equipment for maximizing penetration into hard rock during mining, trenching, drilling, or boring operations. The bit penetrator pocket protector for earth displacement equipment includes a body which defines an upper bit end and a lower shank end. The upper bit end defines a bit insert opening configured to detachably accept a penetrator bit tip. The lower shank end is configured to be securable to a penetrator holder that is welded to an implement of earth working equipment such as the chain excavator or a rotatable drum, or the like. A flange, or pocket protector, is defined between the upper and lower ends in order to provide protection for the bit penetrator lower end and a holder in which it is received by minimizing rock and earth fines from contacting and building up between the holder and bit penetrator. Further, the flange acts as a load bearing surface between the bit penetrator and the holder, thereby protecting the lower end of the bit penetrator and the face and bore of the holder. A plurality of fins are defined between the flange and the upper end in order strengthen the integrity of the bit penetrator.