Large shaft over-reamer apparatus and method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 22, 1994
Grant Date -
N/A
app pub date -
Apr 9, 1993
filing date -
Apr 9, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A large shaft over-reamer apparatus and method using a driver means and a detachable reamer cutter means. The driver means may include a work platform for personnel to work on. The driver means is positioned in a drilled pilot hole for stability and vertical control. The top of the driver means is attached to a kelly bar that transmits rotational force to the driver. The driver means has lug pins to releasably connect the driver means to the reamer cutter means. Releasably connecting the driver means to the reamer cutter means allows the reamer cutter means to be left inside the shaft or hole while the kelly bar lifts out excavated material in a bucket attached to the driver means. The reamer cutter has radial cutters and wiper blades. The wiper blades help funnel the excavated materials to a bucket.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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