SHROUD ARRANGEMENT FOR A FLUID FLOW MACHINE
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Dec 11, 2014
app pub date -
Jun 4, 2014
filing date -
Jun 5, 2013
priority date (Note) -
Published
status (Latency Note)
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Importance

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Abstract
A shroud arrangement for a fluid-flow machine includes a blade root connected to at least one blade/vane end of a row of rotor blades or stator vanes, or is connected to at least one such blade/vane end. A shroud is connected to the blade root on the side of the blade root facing away from the blades/vanes. The blade root on the side facing away from the blades/vanes has two blade root fingers extending substantially in the radial direction and axially spaced from one another, the blade root fingers forming between them a recess being continuous in the circumferential direction. An element or area of the shroud for fastening to the blade root is arranged in the recess. The shroud has two webs extending into the recess and enclosed by the blade root fingers, with the two webs forming substantially a V-shaped arrangement.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
ROLLS-ROYCE DEUTSCHLAND LTD & CO KG | 15827 BLANKENFELDE-MAHLOW |
International Classification(s)

- 2014 Application Filing Year
- F01D Class
- 2253 Applications Filed
- 1888 Patents Issued To-Date
- 83.80 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
GUEMMER, Volker | Mahlow, DE | 55 | 783 |
# of filed Patents : 55 Total Citations : 783 |
Cited Art Landscape
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Patent Citation Ranking
- 2 Citation Count
- F01D Class
- 9.04 % this patent is cited more than
- 11 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jun 11, 2026 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
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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