Cutting wheel arrangement for suction dredge
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United States of America Patent
Stats
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Dec 15, 1992
Issued Date -
N/A
app pub date -
Nov 15, 1991
filing date -
Mar 10, 1986
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A cutting wheel arrangement for a suction dredge includes a cutting wheel assembly provided with a plurality of cutting stirrups. A suction pipe is connected to a suction chamber arranged within the cutting wheel arrangement. The suction chamber has a suction opening in the suction area. The cutting wheel assembly includes two coaxially adjacent cutting wheels which are fixedly connected to each other and have lateral cutting openings. The suction chamber is separated by a center wall into two separate chamber portions. One of the suction chamber portions is located in the region of one cutting wheel and the other suction chamber portion is located in the region of the other cutting wheel. Each suction chamber portion is connected to the suction pipe through an opening which can be closed by means of an adjustable flap member in such a way that either the one or the other suction chamber portion is in communication with the suction pipe. The suction chamber is located predominantly in the lower region of the cutting wheels. The cutting wheel arrangement is operated in such a way that the direction of rotation of the cutting wheels moves the cutting stirrups toward and past the suction opening the region of the suction chamber portions.

First Claim
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
KRUPP FORDERTECHNIK GMBH | 45143 ESSEN |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Stehmeier, Heiko | Stockelsdorf, DE | 1 | 2 |
Steinkuhler, Siegfried | Bad Schwartau, DE | 3 | 18 |
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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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