Excavation machine having combined impact hammers and static ripper pick
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 2, 1994
Grant Date -
N/A
app pub date -
Oct 14, 1992
filing date -
Oct 14, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An excavating machine having a cutter head which is provided with both reciprocating impact hammers and a static pick. The impact hammers are mounted on either side of the static pick so as to flank this, and the tip of this can be extended or retracted relative to the tips of the hammers. The ripper pick can thus scarf out a mound of earth left between the two impact hammers, or can be extended to cut a channel into which the impact hammers then drive the adjacent material. The impact hammers can be tilted relative to the axis of the ripper pick so that their tips either precede or follow that of the pick as they are moved across the working face. The cutter assembly may be mounted to a tracked vehicle so as to extend forwardly from this for continuous mining, or laterally from this for long wall mining.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully