CRDM with separate SCRAM latch engagement and locking

Dodd, Christopher D.; DeSantis, Paul K.; Stambaugh, Kevin J.; Mackovjak, Allan R.; McLaughlin, John P.; Goodyear, Brett T.; Edwards, Michael J.; Ales, Matthew W.

Advanced Search OptionsAdvanced Search queries use a traditional Term Search. For more info, see our FAQ.

All Fields:

Patent Title:

Abstract:

Assignee:

Inventor(s):

Patent Number:

Patent Classification (CPC):

All Classifications
A - human necessities
A01 - agriculture
A21 - baking
A22 - butchering
A23 - foods or foodstuffs
A24 - tobacco
A41 - wearing apparel
A42 - headwear
A43 - footwear
A44 - haberdashery
A45 - hand or travelling articles
A46 - brushware
A47 - furniture
A61 - medical or veterinary science
A62 - life-saving
A63 - sports
A99 - subject matter not otherwise provided for in this section
B - performing operations
B01 - physical or chemical processes or apparatus in general
B02 - crushing, pulverising, or disintegrating
B03 - separation of solid materials using liquids or using pneumatic tables or jigs
B04 - centrifugal apparatus or machines for carrying-out physical or chemical processes
B05 - spraying or atomising in general
B06 - generating or transmitting mechanical vibrations in general
B07 - separating solids from solids
B08 - cleaning
B09 - disposal of solid waste
B21 - mechanical metal-working without essentially removing material
B22 - casting
B23 - machine tools
B24 - grinding
B25 - hand tools
B26 - hand cutting tools
B27 - working or preserving wood or similar material
B28 - working cement, clay, or stone
B29 - working of plastics
B30 - presses
B31 - making articles of paper, cardboard or material worked in a manner analogous to paper
B32 - layered products
B33 - additive manufacturing technology
B41 - printing
B42 - bookbinding
B43 - writing or drawing implements
B44 - decorative arts
B60 - vehicles in general
B61 - railways
B62 - land vehicles for travelling otherwise than on rails
B63 - ships or other waterborne vessels
B64 - aircraft
B65 - conveying
B66 - hoisting
B67 - opening, closing {or cleaning} bottles, jars or similar containers
B68 - saddlery
B81 - microstructural technology
B82 - nanotechnology
B99 - subject matter not otherwise provided for in this section
C - chemistry
C01 - inorganic chemistry
C02 - treatment of water, waste water, sewage, or sludge
C03 - glass
C04 - cements
C05 - fertilisers
C06 - explosives
C07 - organic chemistry
C08 - organic macromolecular compounds
C09 - dyes
C10 - petroleum, gas or coke industries
C11 - animal or vegetable oils, fats, fatty substances or waxes
C12 - biochemistry
C13 - sugar industry
C14 - skins
C21 - metallurgy of iron
C22 - metallurgy
C23 - coating metallic material
C25 - electrolytic or electrophoretic processes
C30 - crystal growth
C40 - combinatorial technology
C99 - subject matter not otherwise provided for in this section
D - textiles
D01 - natural or man-made threads or fibres
D02 - yarns
D03 - weaving
D04 - braiding
D05 - sewing
D06 - treatment of textiles or the like
D07 - ropes
D10 - indexing scheme associated with sublasses of section d, relating to textiles
D21 - paper-making
D99 - subject matter not otherwise provided for in this section
E - fixed constructions
E01 - construction of roads, railways, or bridges
E02 - hydraulic engineering
E03 - water supply
E04 - building
E05 - locks
E06 - doors, windows, shutters, or roller blinds in general
E21 - earth drilling
E99 - subject matter not otherwise provided for in this section
F - mechanical engineering
F01 - machines or engines in general
F02 - combustion engines
F03 - machines or engines for liquids
F04 - positive - displacement machines for liquids
F05 - indexing schemes relating to engines or pumps in various subclasses of classes f01-f04
F15 - fluid-pressure actuators
F16 - engineering elements and units
F17 - storing or distributing gases or liquids
F21 - lighting
F22 - steam generation
F23 - combustion apparatus
F24 - heating
F25 - refrigeration or cooling
F26 - drying
F27 - furnaces
F28 - heat exchange in general
F41 - weapons
F42 - ammunition
F99 - subject matter not otherwise provided for in this section
G - physics
G01 - measuring
G02 - optics
G03 - photography
G04 - horology
G05 - controlling
G06 - computing
G07 - checking-devices
G08 - signalling
G09 - education
G10 - musical instruments
G11 - information storage
G12 - instrument details
G16 - information and communication technology [ict] specially adapted for specific application fields
G21 - nuclear physics
G99 - subject matter not otherwise provided for in this section
H - electricity
H01 - basic electric elements
H02 - generation
H03 - basic electronic circuitry
H04 - electric communication technique
H05 - electric techniques not otherwise provided for
H99 - subject matter not otherwise provided for in this section
Y - new / cross sectional technologies
Y02 - technologies or applications for mitigation or adaptation against climate change
Y04 - information or communication technologies having an impact on other technology areas
Y10 - technical subjects covered by former uspc

More Options ...

Title: CRDM with separate SCRAM latch engagement and locking

Abstract

A control rod drive mechanism (CRDM) configured to latch onto the lifting rod of a control rod assembly and including separate latch engagement and latch holding mechanisms. A CRDM configured to latch onto the lifting rod of a control rod assembly and including a four-bar linkage closing the latch, wherein the four-bar linkage biases the latch closed under force of gravity.

Inventors:: Dodd, Christopher D.; DeSantis, Paul K.; Stambaugh, Kevin J.; Mackovjak, Allan R.; McLaughlin, John P.; Goodyear, Brett T.; Edwards, Michael J.; Ales, Matthew W.

Issue Date:: Tue Jan 09 00:00:00 EST 2018

Research Org.:: BWXT mPower, Inc., Charlotte, NC (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1416329

Patent Number(s):: 9865364

Application Number:: 14/174,630

Assignee:: BWXT mPower, Inc. (Charlotte, NC); BWXT Nuclear Operations Group, Inc. (Lynchburg, VA)

Patent Classifications (CPCs):: G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

Show more

G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS
G21C7/117 - Clusters of control rods
G21C7/14 - Mechanical drive arrangements
G21C9/02 - Means for effecting very rapid reduction of the reactivity factor under fault conditions, e.g. reactor fuse

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
Y02E30/30 - Nuclear fission reactors

Show less

DOE Contract Number:: NE0000583

Resource Type:: Patent

Resource Relation:: Patent File Date: 2014 Feb 06

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING

Citation Formats


                    Dodd, Christopher D., DeSantis, Paul K., Stambaugh, Kevin J., Mackovjak, Allan R., McLaughlin, John P., Goodyear, Brett T., Edwards, Michael J., and Ales, Matthew W. CRDM with separate SCRAM latch engagement and locking.  United States: N. p., 2018. 
        Web.

Copy to clipboard


                    Dodd, Christopher D., DeSantis, Paul K., Stambaugh, Kevin J., Mackovjak, Allan R., McLaughlin, John P., Goodyear, Brett T., Edwards, Michael J., & Ales, Matthew W. CRDM with separate SCRAM latch engagement and locking.  United States.

Copy to clipboard


                    Dodd, Christopher D., DeSantis, Paul K., Stambaugh, Kevin J., Mackovjak, Allan R., McLaughlin, John P., Goodyear, Brett T., Edwards, Michael J., and Ales, Matthew W. Tue .  
        "CRDM with separate SCRAM latch engagement and locking".  United States.  https://www.osti.gov/servlets/purl/1416329.

Copy to clipboard


                    
@article{osti_1416329,

  title        = {CRDM with separate SCRAM latch engagement and locking},

  author       = {Dodd, Christopher D. and DeSantis, Paul K. and Stambaugh, Kevin J. and Mackovjak, Allan R. and McLaughlin, John P. and Goodyear, Brett T. and Edwards, Michael J. and Ales, Matthew W.},

  abstractNote = {A control rod drive mechanism (CRDM) configured to latch onto the lifting rod of a control rod assembly and including separate latch engagement and latch holding mechanisms. A CRDM configured to latch onto the lifting rod of a control rod assembly and including a four-bar linkage closing the latch, wherein the four-bar linkage biases the latch closed under force of gravity.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Tue Jan 09 00:00:00 EST 2018},

  month        = {Tue Jan 09 00:00:00 EST 2018}

}

Copy to clipboard

Patent:

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

Drive Mechanism for Control Elements
patent, September 1971

Frisch, Erling; Andrews, Harry N.
US Patent Document 3,607,629
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3607629

Device for Controlling and Shutting-Down Pressurized-Water Nuclear Reactor
patent, May 1973

Schabert, Hans-Peter; Seibelberger, Hartmut
US Patent Document 3,734,825
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3734825

Control Arrangement for Self-Closing Control Rod Latches
patent, October 1973

Ruoss, Christian William
US Patent Document 3,765,585
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3765585

Nuclear Reactor Having Control-Rod Retaining Means
patent, December 1974

Frisch, Erling; Andrews, Harry N.
US Patent Document 3,853,699
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3853699

Gripper Device
patent, December 1974

Jones, Thomas Alan; Anthony, Andrew James
US Patent Document 3,857,599
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3857599

Compactable control element assembly for a nuclear reactor
patent, May 1976

Dupen, Clive Frederick George
US Patent Document 3,959,072
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3959072

Control rod drive mechanism for a nuclear reactor
patent, November 1976

DeWesse, John L.
US Patent Document 3,992,255
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3992255

Regulating rod drive of nuclear reactor
patent, November 1978

Zhuchkov, Ivan Ilich; Gorjunov, Vladimir S.; Zaitsev, Boris Ivanovich
US Patent Document 4,124,442
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4124442

Drive mechanism nuclear reactor control rod
patent, November 1978

Brooks, James; Maure, Douglas R.; Meijer, Christoffel H.
US Patent Document 4,125,432
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4125432

Hydraulic latch scram release mechanism
patent, February 1980

Noyes, Richard C.; Zaman, Shakir U.
US Patent Document 4,187,145
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4187145

Nuclear reactor control apparatus
patent, October 1983

Sridhar, Bettadapur N.
US Patent Document 4,411,857
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4411857

Operating devices for control rods in a nuclear reactor
patent, September 1984

Desfontaines, Guy
US Patent Document 4,472,348
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4472348

Linear motion device and method for inserting and withdrawing control rods
patent, November 1984

Smith, Jay E.
US Patent Document 4,484,093
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4484093

Multi-function magnetic jack control drive mechanism
patent, July 1986

Bollinger, Lawrence R.; Crawford, Donald C.
US Patent Document 4,597,934
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4597934

Electromagnetic safety device of a screw/nut type
patent, October 1986

Defaucheux, Jacques B.; Guedj, Freddy
US Patent Document 4,618,471
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4618471

Apparatus with linear movement
patent, February 1987

Peletan, Rene
US Patent Document 4,640,811
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4640811

Automatic controller for magnetic jack type control rod drive mechanism
patent, May 1987

Scarola, Kenneth; Burns, John
US Patent Document 4,663,576
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4663576

Control rod driveline and grapple
patent, December 1987

Germer, John H.
US Patent Document 4,713,210
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4713210

Frictionally loaded top end supports for cantilever-mounted rod guides of a pressurized water reactor
patent, August 1989

Veronesi, Luciano; Shockling, Larry A.
US Patent Document 4,857,264
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4857264

Rod cluster having improved vane configuration
patent, September 1989

Shockling, Larry A.; Francis, Trevor
US Patent Document 4,863,678
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4863678

Resiliently loaded lateral supports for cantilever-mounted rod guides of a pressurized water reactor
patent, October 1989

Ekeroth, Douglas E.; Veronesi, Luciano
US Patent Document 4,876,061
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4876061

Reconstitutable control assembly having removable control rods with detachable split upper end plugs
patent, December 1989

Gjertsen, Robert K.; Knott, Ronald P.; Sparrow, James A.
US Patent Document 4,888,151
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4888151

Reconstitutable control assembly having removable control rods with detachable split upper end plugs
patent, February 1991

Gjertsen, Robert K.; Knott, Ronald P.; Sparrow, James A.
US Patent Document 4,993,864
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4993864

Curvilinear translating latch and linkage arrangement in a control rod drive mechanism of a nuclear reactor
patent, April 1991

Tessaro, John E.
US Patent Document 5,009,834
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5009834

Hybrid nuclear reactor grey rod to obtain required reactivity worth
patent, November 1991

Miller, John V.; Carlson, William R.; Yarbrough, Michael B.
US Patent Document 5,064,607
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5064607

Single-step multiple repositionings of control rod cluster assembly during each nuclear reactor fuel cycle
patent, November 1991

Tessaro, John E.
US Patent Document 5,066,451
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5066451

Reconstitutable control assembly having removable control rods with detachable split upper end plugs
patent, August 1992

Gjertsen, Robert K.; Knott, Ronald P.; Sparrow, James A.
US Patent Document 5,141,711
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5141711

Spectral shift-producing subassembly for use in a nuclear fuel assembly
patent, April 1993

Ferrari, Harry M.
US Patent Document 5,200,138
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5200138

Tool for handling a cluster of rods of consumable poison
patent, July 1993

Beneck, Jean; Morez, Bernard
US Patent Document 5,227,125
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5227125

Segmented coil assembly for control rod drive
patent, April 1994

King, John E.; Gillett, James E.; Calfo, Raymond M.
US Patent Document 5,307,384
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5307384

Internal control rod drive for a BWR
patent, November 1994

Kobsa, Irvin R.; Relf, Charles W.; Carruth, John C.
US Patent Document 5,361,279
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5361279

Device for the automatic disconnection of a control rod and a nuclear reactor absorber cluster
patent, February 1997

Bergamaschi, Yves
US Patent Document 5,606,582
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5606582

Method of repairing a nuclear fuel rod assembly with damaged fuel rod and a damaged spacer
patent, April 1997

Gallacher, Vincent
US Patent Document 5,625,657
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5625657

Control rod drive mechanism
patent, July 1998

Tani, Zenshin
US Patent Document 5,778,034
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5778034

System and method for testing the free fall time of nuclear reactor control rods
patent, November 1998

Graham, Kinglsey F.
US Patent Document 5,841,824
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5841824

Control element assembly position system
patent, July 2000

Ridolfo, Charles F.
US Patent Document 6,091,790
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6091790

Method and system for monitoring control rod element assembly position
patent, May 2001

Ridolfo, Charles F.
US Patent Document 6,236,699
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6236699

Method and apparatus for preventing relative rotation of tube members in a control rod drive mechanism
patent, August 2001

Kinney, Calvin L.; Guardiani, Richard F.; Duga, Martin E.
US Patent Document 6,275,556
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6275556

Monitoring control rod element assembly position
patent, July 2002

Ridolfo, Charles F.
US Patent Document 6,421,405
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6421405

Advanced gray rod control assembly
patent, August 2008

Fetterman, Robert J.; Sparrow, James A.
US Patent Document 7,412,021
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7412021

Control rod drive mechanism for nuclear reactor
patent, August 2014

Stambaugh, Kevin J.; DeSantis, Paul K.; Mackovjak, Allan R.
US Patent Document 8,811,561
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8811561

Control rod drive mechanism for nuclear reactor
patent, August 2014

DeSantis, Paul K.
US Patent Document 8,811,562
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8811562

Nuclear Reactor Control Rod Spider Assembly
patent-application, October 2008

McCarty, Jeffrey M.; Sparrow, Jim
US Patent Application 11/735612; 20080253496
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20080253496

Rod assembly for nuclear reactors
patent-application, May 2009

Fawcett, Russell Morgan; Gonzales, Randy Peter; Higgins, Russell Patrick
US Patent Application 12/219906; 20090122946
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20090122946

Control Rod Drive Mechanism for Nuclear Reactor
patent-application, December 2010

Stambaugh, Kevin J.; DeSantis, Paul K.; Mackovjak, Allan R.
US Patent Application 12/722662; 20100316177
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20100316177

Control Rod Drive Mechanism for Nuclear Reactor
patent-application, September 2011

DeSantis, Paul K.
US Patent Application 12/722696; 20110222640
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20110222640

Nuclear Reactor Control Rod Drive Mechanism
patent-application, June 2012

Morris, Richard
US Patent Application 13/280478; 20120148006
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20120148006

Nuclear Reactor Internal Electric Control Rod Drive Mechanism Assembly
patent-application, June 2012

Allen, Bruce F.; Falvo, Gregory E.; Coombs, Brian P.
US Patent Application 13/314519; 20120148007
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20120148007

Nuclear Reactor Internal Hydraulic Control Rod Drive Mechanism Assembly
patent-application, June 2012

Allen, Bruce F.; Falvo, Gregory E.; Harkness, Alexander W.
US Patent Application 13/314506; 20120148008
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20120148008