Method for Embedding Rock Anchors
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Nov 15, 2007
app pub date -
Oct 21, 2005
filing date -
Oct 21, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Importance

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Non-US Coverage
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Abstract
According to the invention, a drill rod comprising an inner channel is drilled into the rock. A free-flowing, self-hardening mass is pressed through the inner channel of the drill rod, filling the drilled hole, so that it hardens with the drill rod remaining in the drilled hole. The hardening mass is a mixture of a hardenable plastic and a hardening plastic. Said plastics are supplied to the inner channel of the drill rod over a pre-determined transport time F which corresponds to the hardening time. The hardening time is defined by the selection of the plastics and the mixing ratio thereof such that the transport time essentially corresponds to the hardening time and leads essentially to the flow path of the hardened mixture being completely filled between the mixing point and the output of the drilled hole.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
MINOVA INTERNATIONAL LIMITED | UNIT 8 FRESHWATER ROAD PARK ROAD HOLMEWOOD INDUSTRIAL ESTATE CHESTERFIELD DERBYSHIRE S42 5UY |
International Classification(s)

- 2005 Application Filing Year
- E21D Class
- 38 Applications Filed
- 17 Patents Issued To-Date
- 44.74 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Richter, Archibald | Essen, DE | 4 | 11 |
# of filed Patents : 4 Total Citations : 11 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 10 Citation Count
- E21D Class
- 6.90 % this patent is cited more than
- 18 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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