Bucyrus International Inc.

Bret A Tarnowski

David T Bienfang

Nathaniel A Falendysz

A drill bit carousel for use on a blast hole drill includes a base structure that movably supports a plurality of drill receptacles. The drill bit carousel is movable between a storage position and at least one exchange position. In the exchange position, one of the drill receptacles is aligned with a centerline of a drill pipe string. In the storage position, the drill bit carousel is clear of the centerline of the drill pipe string.

Blast hole drill bit carousel and a blast hole drill including a blast hole drill bit carousel

A tool wrench assembly for a blasthole drill includes a fork pivotally fixed relative to at least one actuator that moves the fork between an engaged and a disengaged position.

Growing community of inventors

West Allis, WI, United States of America

Bret A Tarnowski