Radioactive debris trap
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Dec 31, 2013
Grant Date -
Oct 3, 2013
app pub date -
Apr 26, 2013
filing date -
Oct 30, 2009
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A radioactive debris trap to be installed in a steam generator for removing debris in the primary flow of a nuclear power plant's primary heat transport system. The debris trap includes an outer cylinder and a coaxial inner cylinder both having a top end and a bottom end. A top plate connects the top ends of the outer and inner cylinders. A bottom plate which encloses the trap is connected to the bottom end of the outer cylinder. There is a gap between the bottom end of the inner cylinder and the bottom plate through which primary flow enters a settling chamber located in an annular gap between the outer and inner cylinders. Several small holes are located at the top end of the outer cylinder through which liquid exits the debris trap. A means for fixedly connecting the debris trap to the steam generator is provided on the outer surface of the outer cylinder. Also included is a means for removing the radioactive debris trap from the steam generator without exposing personnel to excessive radiation.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
BWXT CANADA LTD | 581 CORONATION BLVD CAMBRIDGE N1R 5V3 |
International Classification(s)

- 2013 Application Filing Year
- G21C Class
- 241 Applications Filed
- 215 Patents Issued To-Date
- 89.22 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Steinmoeller, Franz E | Kitchener, CA | 2 | 9 |
# of filed Patents : 2 Total Citations : 9 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 0 Citation Count
- G21C Class
- 0 % this patent is cited more than
- 12 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 30, 2025 |
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 |
Full Text

Legal Events
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Jul 29, 2024 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Jul 29, 2024 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Jun 21, 2024 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Jun 21, 2024 |
Feb 12, 2024 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Dec 23, 2019 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4 |
Dec 27, 2016 | CC | CERTIFICATE OF CORRECTION | |
Jun 21, 2016 | I | Issuance | |
Jun 01, 2016 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Feb 25, 2016 | ZAAA | NOTICE OF ALLOWANCE AND FEES DUE | free format text: ORIGINAL CODE: NOA |
Feb 25, 2016 | ZAAB | NOTICE OF ALLOWANCE MAILED | free format text: ORIGINAL CODE: MN/=. |
Jun 26, 2014 | P | Published | |
Nov 12, 2013 | F | Filing | |
Apr 30, 2002 | PD | Priority Date |

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