GAS TURBINE ENGINE ACTIVE CLEARANCE CONTROL SYSTEM
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Issued Date -
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app pub date -
Jul 27, 2016
filing date -
Jul 27, 2016
priority date (Note) -
Published
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Importance

US Family Size
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Non-US Coverage
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Abstract
A gas turbine engine includes a blade having a tip, a blade outer air seal operatively connected to a case assembly, and an active clearance control system disposed on the case assembly. The active control system includes an actuator assembly. The actuator assembly includes a motor assembly and a shaft. The shaft has a shaft body that extends between a first end that is operatively connected to the motor assembly and a second end that is operatively connected to the blade outer air seal.
First Claim
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Family
- No Family data available.
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
RTX CORPORATION | 10 FARM SPRINGS ROAD FARMINGTON MN 06032 |
International Classification(s)

- 2016 Application Filing Year
- F01D Class
- 2676 Applications Filed
- 2047 Patents Issued To-Date
- 76.50 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
McCaffrey, Michael G | Windsor, US | 219 | 2556 |
# of filed Patents : 219 Total Citations : 2556 |
Cited Art Landscape
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Patent Citation Ranking
- 2 Citation Count
- F01D Class
- 31.14 % this patent is cited more than
- 7 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Aug 1, 2025 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 1, 2029 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
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 |
Full Text

Legal Events
Date | Code | Event | Description |
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Oct 31, 2016 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Oct 02, 2016 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Oct 02, 2016 |
Oct 02, 2016 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
May 13, 2016 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Dec 02, 2012 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Oct 02, 2012 | I | Issuance | |
Jun 11, 2009 | P | Published | |
Nov 17, 2008 | F | Filing | |
Oct 23, 2008 | AS | ASSIGNMENT | free format text: CORRECTIVE ASSIGNMENT TO CORRECT THE COUNTRY OF RESIDENCE OF THE ASSIGNEE PREVIOUSLY RECORDED ON REEL 021848 FRAME 0909. ASSIGNOR(S) HEREBY CONFIRMS THE CORRECT COUNTRY IS JAPAN AND NOT TAIWAN AS PREVIOUSLY INDICATED.;ASSIGNORS:KAWAI, TAKASHI;KUSAKABE, KATSUHIKO;KITA, AKIHIKO;AND OTHERS;REEL/FRAME:026999/0818 Owner name: TAKARA BIO INC., JAPAN Effective Date: Oct 23, 2008 |
Oct 23, 2008 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KAWAI, TAKASHI;KUSAKABE, KATSUHIKO;KITA, AKIHIKO;AND OTHERS;REEL/FRAME:021848/0909 Owner name: TAKARA BIO INC., TAIWAN Effective Date: Oct 23, 2008 |
Nov 15, 2007 | PD | Priority Date |

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