Smart isolation base for sensitive structures such as nuclear power plants against earthquake disturbances
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Mar 12, 2013
Grant Date -
May 24, 2012
app pub date -
Nov 24, 2010
filing date -
Nov 24, 2010
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An isolation base system for sensitive structures such as nuclear power plant modules is suggested. The proposed isolation system considers a base supported on specially designed hollow spherical balls and equipped with 3 linear hydraulic actuators to restrict the lateral motion of the base and provide a stable base under normal conditions. The actuators are released when an earthquake signal is detected to allow the base to oscillate freely during the earthquake attack. The hydraulic actuators are reactivated after shock wave ends to compress the springs and restore the base to its original position.
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 | |
---|---|---|
KING SAUD UNIVERSITY | RIYADH | |
KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGY | P O BOX 6086 RIYADH 11442 |
International Classification(s)

- 2010 Application Filing Year
- E04B Class
- 875 Applications Filed
- 495 Patents Issued To-Date
- 56.58 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Alsaif, Khalid A | Riyadh, SA | 4 | 36 |
# of filed Patents : 4 Total Citations : 36 |
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Patent Citation Ranking
- 2 Citation Count
- E04B Class
- 4.58 % 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 |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
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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