Conical-flat heat shield for gas turbine engine combustor dome
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jan 16, 2018
Issued Date -
N/A
app pub date -
Jun 25, 2015
filing date -
Jun 26, 2014
priority date (Note) -
In Force
status (Latency Note)
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Importance

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Abstract
A gas turbine engine combustor conical-flat heat shield includes an annular conical section extending upstream from and being integral with a flat section with a flat downstream facing surface which may be generally perpendicular to or canted with respect to a centerline. The flat section includes radially outer and inner edges at least one of which is circular and circumscribed about a centerline and circumferentially spaced apart clockwise and counter-clockwise radial edges having an origin on the centerline. A gas turbine engine combustor includes conical-flat heat shields in one or more circular rows arranged in a non-symmetrical or asymmetrical pattern. Two or more groups (A, B, C) of the conical-flat heat shields in the circular rows may be mounted on a domeplate and one or more of the conical-flat heat shields is different in one or more of the groups (A, B, C).
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 | |
---|---|---|
GENERAL ELECTRIC COMPANY | ONE RIVER ROAD SCHENECTADY NY 12345 |
International Classification(s)

- 2015 Application Filing Year
- F23R Class
- 450 Applications Filed
- 328 Patents Issued To-Date
- 72.89 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Danis, Allen Michael | West Chester, US | 22 | 384 |
# of filed Patents : 22 Total Citations : 384 | |||
Elkady, Ahmed Mostafa | West Chester, US | 23 | 699 |
# of filed Patents : 23 Total Citations : 699 | |||
Li, Shui-chi | West Chester, US | 13 | 466 |
# of filed Patents : 13 Total Citations : 466 | |||
Moertle, George | West Chester, US | 1 | 4 |
# of filed Patents : 1 Total Citations : 4 | |||
Mueller, Mark Anthony | Cincinnati, US | 24 | 284 |
# of filed Patents : 24 Total Citations : 284 | |||
Roberson, Eric Matthew | West Chester, US | 1 | 4 |
# of filed Patents : 1 Total Citations : 4 |
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Patent Citation Ranking
- 1 Citation Count
- F23R Class
- 12.28 % this patent is cited more than
- 7 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jul 16, 2025 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 16, 2029 |
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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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Sep 21, 2006 | FPAY | FEE PAYMENT | year of fee payment: 12 |
Dec 12, 2002 | FPAY | FEE PAYMENT | year of fee payment: 8 |
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Aug 01, 1995 | I | Issuance | |
Jul 20, 1995 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Dec 02, 1994 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Feb 14, 1994 | F | Filing | |
Feb 03, 1994 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DUMOULIN, CHARLES LUCIAN;DARROW, ROBERT DAVID;REEL/FRAME:006935/0085 Owner name: GENERAL ELECTRIC COMPANY, NEW YORK Effective Date: Feb 03, 1994 |
Nov 18, 1991 | PD | Priority Date |

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