MONITORING OF CLEARANCE
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Sep 19, 2013
app pub date -
Dec 9, 2011
filing date -
Dec 14, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The clearance between a stationary object (such as a gas turbine engine casing) and one or more moving objects (such as the blades of a rotating turbine) is measured using a pair of electrical proximity sensors mounted on the stationary object with their sensitive fields directed towards the path of the moving object(s) and at angle to each other. The clearance is calculated by deriving a time interval between interceptions of the respective moving object with the sensitive fields of the two sensors and from the geometry of the set up.
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 | |
---|---|---|
QINETIQ LIMITED | CODY TECHNOLOGY PARK IVELY ROAD FARNBOROUGH HAMPSHIRE GU14 0LX |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Chana, Kamaljit Singh | Malvern, GB | 20 | 34 |
# of filed Patents : 20 Total Citations : 34 | |||
Sullivan, Jonathan Shamus | Malvern, GB | 6 | 6 |
# of filed Patents : 6 Total Citations : 6 |
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Patent Citation Ranking
- 1 Citation Count
- G01B Class
- 3.83 % this patent is cited more than
- 12 Age
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Fee | Large entity fee | small entity fee | micro entity fee | due date |
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11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 19, 2025 |
Fee | Large entity fee | small entity fee | micro entity fee |
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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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