Magnetically-actuated isolated rod couplings for use in a nuclear reactor control rod drive

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10770189
APP PUB NO 20180019028A1
SERIAL NO

15646117

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

Control rod drives include linearly-moveable control elements inside an isolation barrier. Control rod drives move the control element through a motor and rotor powering a linear screw internal to an isolation barrier. Induction coils may generate magnetic fields and be moveable across a full stroke length of the control element in the reactor. The magnetic fields hold closed a releasable latch to disconnect the control elements from the linear drives. A control rod assembly may join to the control element. The control rod assembly may lock with magnetic overtravel latches inside the isolation barrier to maintain an overtravel position. Overtravel release coils outside the isolation barrier may release the latches to leave the overtravel position. Operation includes moving the magnetic fields and releasable latch together on opposite sides of an isolation barrier to drive the control element to desired insertion points, including full insertion by gravity following de-energization.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
GE-HITACHI NUCLEAR ENERGY AMERICAS LLC3901 CASTLE HAYNE ROAD WILMINGTON NC 28401

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Brown, Randy M Wilmington, US 11 55
Deaver, Gerald A Wilmington, US 26 217
Major, David L Wilmington, US 11 8
Morgan, Kenneth A Wilmington, US 11 34

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Mar 8, 2028
11.5 Year Payment $7400.00 $3700.00 $1850.00 Mar 8, 2032
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