Combination bucket/breaker apparatus for excavator boom stick

Details Combination bucket/breaker apparatus for excavator boom stick Combination bucket/breaker apparatus for excavator boom stick

2006-10-10

2006-10-10

Novosad, Christopher J. (Department: 3641)

Excavating

Combined or convertible

C037S903000

Reexamination Certificate

active

07117618

ABSTRACT:
An excavating machine, representatively a tracked excavator has a boom stick portion on which both an excavating bucket and a hydraulic breaker are mounted for hydraulically driven pivotal movement between first and second limit positions. The bucket may be operated independently of the breaker for digging operations. Similarly, the breaker may be operated independently of the bucket for refusal material-breaking operations. The same excavating machine may now use the bucket and breaker in a rapid and continuous exchange to permit frequent removal of small quantities of broken refuse material with the bucket, exposing the bucket and breaker to fresh refuse material. A lubricatable attachment system is disclosed for improved breaker system connectivity that permits quick installation and removal of the breaker. An alternative deployment system is disclosed having a rotary actuator for efficient and rapid deployment without the need for an additional hydraulic cylinder.

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