GB1516957A – Nut plate assembly for a nuclear reactor fuel assembly
– Google Patents
GB1516957A – Nut plate assembly for a nuclear reactor fuel assembly
– Google Patents
Nut plate assembly for a nuclear reactor fuel assembly
Info
Publication number
GB1516957A
GB1516957A
GB18252/76A
GB1825276A
GB1516957A
GB 1516957 A
GB1516957 A
GB 1516957A
GB 18252/76 A
GB18252/76 A
GB 18252/76A
GB 1825276 A
GB1825276 A
GB 1825276A
GB 1516957 A
GB1516957 A
GB 1516957A
Authority
GB
United Kingdom
Prior art keywords
nuts
nut plate
assembly
cups
nodes
Prior art date
1975-08-01
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB18252/76A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Babcock and Wilcox Co
Original Assignee
Babcock and Wilcox Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1975-08-01
Filing date
1976-05-04
Publication date
1978-07-05
1976-05-04
Application filed by Babcock and Wilcox Co
filed
Critical
Babcock and Wilcox Co
1976-05-04
Priority to GB39767/77A
priority
Critical
patent/GB1516958A/en
1978-07-05
Publication of GB1516957A
publication
Critical
patent/GB1516957A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
B—PERFORMING OPERATIONS; TRANSPORTING
B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
B25B13/00—Spanners; Wrenches
B25B13/48—Spanners; Wrenches for special purposes
B—PERFORMING OPERATIONS; TRANSPORTING
B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
B25B23/02—Arrangements for handling screws or nuts
B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
B25B23/10—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means
B25B23/101—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means for hand-driven screw-drivers
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS, WEDGES, JOINTS OR JOINTING
F16B37/00—Nuts or like thread-engaging members
F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
F16B37/044—Nut cages
G—PHYSICS
G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
G21C—NUCLEAR REACTORS
G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
G21C3/30—Assemblies of a number of fuel elements in the form of a rigid unit
G21C3/32—Bundles of parallel pin-, rod-, or tube-shaped fuel elements
G21C3/334—Assembling, maintenance or repair of the bundles
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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
Y02E30/00—Energy generation of nuclear origin
Y02E30/30—Nuclear fission reactors
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
Y10S411/999—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener with retainer, e.g. tether
Abstract
1516957 Fuel elements BABCOCK & WILCOX CO 4 May 1976 [1 Aug 1975] 18252/76 Heading G6C An end fitting 11 for a multi-pin fuel assembly is joined to control rod guide tubes 15 by means of a nut plate assembly 12 comprising a relatively thick plate 13 and a relatively thin nut plate 24, the latter being formed as a rectangular lattice (Fig. 2, not shown) of members (26) that intersect to form apertured nodes 27. The nut plate assembly 12 has an array of nuts 31 engaging the respective threaded ends 21 of the plugs 16 of the control rod guide tubes 15 at the nodes 27. The nuts 31, moreover, are retained on the nut plate 24 during handling or fuel element assembly or dissembly by means of hollow cylindrical locking cups 32 that are brazed to the nut plate 24 and loosely circumscribe the individual enclosed nuts 31. After the nuts 31 are threaded onto the respective guide tube ends 21, the cups 32 are crushed or deformed, to a certain extent, adjacent slots 41 in the nuts 31 to prevent one or more of the nuts from working loose during reactor operation. The locking cups also prevent loose or broken end fitting parts from becoming entrained in the reactor coolant.
GB18252/76A
1975-08-01
1976-05-04
Nut plate assembly for a nuclear reactor fuel assembly
Expired
GB1516957A
(en)
Priority Applications (1)
Application Number
Priority Date
Filing Date
Title
GB39767/77A
GB1516958A
(en)
1975-08-01
1976-05-04
Tool for screwing-up and unscrewing a slotted nut received within a deformable metal cup
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US05/601,000
US4036692A
(en)
1975-08-01
1975-08-01
Nuclear fuel element nut retainer cup
Publications (1)
Publication Number
Publication Date
GB1516957A
true
GB1516957A
(en)
1978-07-05
Family
ID=24405892
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB18252/76A
Expired
GB1516957A
(en)
1975-08-01
1976-05-04
Nut plate assembly for a nuclear reactor fuel assembly
Country Status (17)
Country
Link
US
(1)
US4036692A
(en)
JP
(2)
JPS5218590A
(en)
AT
(1)
AT361586B
(en)
BE
(1)
BE841173A
(en)
BR
(1)
BR7603095A
(en)
CA
(2)
CA1064741A
(en)
CH
(1)
CH607238A5
(en)
DE
(1)
DE2631182C3
(en)
DK
(1)
DK143924C
(en)
EG
(1)
EG13517A
(en)
ES
(1)
ES447973A1
(en)
FR
(1)
FR2319956A1
(en)
GB
(1)
GB1516957A
(en)
IL
(1)
IL49396A
(en)
IT
(1)
IT1067142B
(en)
LU
(1)
LU74897A1
(en)
NL
(2)
NL177535C
(en)
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
FR2490393A1
(en)
*
1980-09-12
1982-03-19
Westinghouse Electric Corp
RECONSTITUABLE FUEL ASSEMBLY FOR A NUCLEAR REACTOR
EP0054235A1
(en)
*
1980-12-16
1982-06-23
Westinghouse Electric Corporation
Fuel assembly for a nuclear reactor
Families Citing this family (31)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE2756667C3
(en)
*
1977-12-19
1981-02-26
Kraftwerk Union Ag, 4330 Muelheim
Fuel element for gas-cooled nuclear reactors
FR2420826A1
(en)
*
1978-03-22
1979-10-19
Commissariat Energie Atomique
REMOTELY MOUNTABLE AND REMOVABLE FUEL ASSEMBLY FOR NUCLEAR REACTOR AND CORRESPONDING TOOLS
FR2483669A2
(en)
*
1978-05-23
1981-12-04
Commissariat Energie Atomique
Appts. for fixing nuclear fuel assembly guide tube – comprising screwed bush and sleeve driver with drive lugs having a return spring in forward direction
JPS56155026U
(en)
*
1980-04-21
1981-11-19
DE3169007D1
(en)
*
1980-05-27
1985-03-28
Commissariat Energie Atomique
Attachment device for a guide tube of a nuclear fuel element assembly to the end fittings of said assembly
FR2533350B1
(en)
*
1982-09-16
1988-07-08
Fragema Framatome & Cogema
NUCLEAR FUEL ASSEMBLY WITH REPLACEABLE PENCILS
US4603027A
(en)
*
1983-12-21
1986-07-29
Westinghouse Electric Corp.
Removable top nozzle and tool for a nuclear reactor fuel assembly
US4770846A
(en)
*
1984-02-03
1988-09-13
Westinghouse Electric Corp.
Replacement support pin for guide tubes in operating plants
US4704246A
(en)
*
1984-06-06
1987-11-03
Westinghouse Electric Corp.
Crimping
US4818473A
(en)
*
1985-05-08
1989-04-04
Westinghouse Electric Corp.
Fuel bundle
US4687631A
(en)
*
1985-09-12
1987-08-18
Westinghouse Electric Corp.
Top nozzle mounted reusable fastener device in a reconstitutable nuclear fuel assembly
US4684499A
(en)
*
1985-12-10
1987-08-04
Westinghouse Electric Corp.
Burnable absorber rod releasable latching structure
US4772448A
(en)
*
1986-01-07
1988-09-20
Westinghouse Electric Corp.
Support pin system and locking nut retainer
US4820479A
(en)
*
1988-02-10
1989-04-11
Westinghouse Electric Corp.
Guide pin assembly for a nuclear reactor
US4937039A
(en)
*
1989-01-17
1990-06-26
Westinghouse Electric Corp.
Four pin mounting system for nuclear reactor control rod guide tubes
US4963318A
(en)
*
1989-04-24
1990-10-16
General Electric Company
Spring lock washer for tie rod nuts
US5024806A
(en)
*
1989-09-21
1991-06-18
Westinghouse Electric Corp.
Enhanced debris filter bottom nozzle for a nuclear fuel assembly
US5271588A
(en)
*
1992-07-17
1993-12-21
General Electric Company
Multi-piece tube clamp
US5265141A
(en)
*
1992-08-19
1993-11-23
General Electric Company
Captive fastener
US5361283A
(en)
*
1994-03-15
1994-11-01
B&W Fuel Company
Guide tube retainer
US5367548A
(en)
*
1994-03-15
1994-11-22
B&W Fuel Company
Guide tube retainer
SE517867C2
(en)
*
1995-10-12
2002-07-23
Gen Electric
Water rod in a fuel assembly belonging to a boiling water reactor
ATE515641T1
(en)
*
2002-07-16
2011-07-15
Acument Ip Llc
CAGE NUT ASSEMBLY WITH A SPACER NUT
US7156599B2
(en)
*
2002-07-16
2007-01-02
Textron Inc.
Cage nut assembly having stand-offs
US6692206B1
(en)
*
2002-08-16
2004-02-17
Textron Inc.
Split weld cage nut assembly
EP1570187A4
(en)
*
2002-12-10
2006-09-27
Textron Inc
Cage nut assembly having a flexible cage
US7086817B2
(en)
*
2003-01-13
2006-08-08
Textron Inc.
Collapsible nut
FR2870759B1
(en)
*
2004-05-28
2006-09-01
Framatome Anp Sas
DEVICE FOR REMOTELY CRIMPING A FIXED CUP FOR LOCKING A ROTATION OF A SCREW AND METHOD IMPLEMENTING SAID DEVICE
US20060018024A1
(en)
*
2004-07-23
2006-01-26
Bryant Kyle R
Panoramic see-through optical device
JP4424431B2
(en)
*
2007-10-12
2010-03-03
トヨタ自動車株式会社
tightening structure
US10124472B2
(en)
*
2012-04-16
2018-11-13
Bwxt Mpower, Inc.
Lower end fitting locknut for nuclear fuel assembly
Family Cites Families (19)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US1201444A
(en)
*
1916-02-17
1916-10-17
Charles A Helmick
Nut-lock.
US1212918A
(en)
*
1916-06-19
1917-01-16
J B Freeman
Nut-lock.
US2431735A
(en)
*
1942-10-22
1947-12-02
Honeywell Regulator Co
Locking device for screws and nuts
US2385777A
(en)
*
1943-10-26
1945-10-02
Smaller War Plants Corp
Nut-supporting device
US2737222A
(en)
*
1952-06-07
1956-03-06
United Carr Fastener Corp
Resilient detent stud and socket fastener assembly
US3033260A
(en)
*
1954-12-03
1962-05-08
Snow William Herbert
Anchor nut assembly with removable shim
US3125760A
(en)
*
1958-03-31
1964-03-17
Fuel locating and suspending system for neutronic reactor core
FR1193560A
(en)
*
1958-10-21
1959-11-03
Shur Lok Corp
Assembly of a fixing nut and a panel
US3142627A
(en)
*
1959-10-21
1964-07-28
Atomic Energy Authority Uk
Fuel element assemblies
GB938492A
(en)
*
1961-06-14
1963-10-02
Ft Products Ltd
An improved nut or bolt-head cage
GB1000339A
(en)
*
1963-04-25
1965-08-04
Soc Anglo Belge Vulcain Sa
Nuclear fuel assembly end supports
NL133363C
(en)
*
1966-03-24
US3431170A
(en)
*
1966-12-07
1969-03-04
Gen Electric
Nuclear reactor fuel bundle
US3421563A
(en)
*
1967-07-31
1969-01-14
Federal Screw Works
Fastener assembly
US3475273A
(en)
*
1967-12-05
1969-10-28
Combustion Eng
Nuclear reactor fuel assembly
US3722329A
(en)
*
1970-05-07
1973-03-27
Huck Mfg Co
Fastener installation tool
DE2042312A1
(en)
*
1970-05-22
1971-12-02
Bbc Brown Boveri & Cie
Securing for hexagon socket screws
US3653802A
(en)
*
1970-11-18
1972-04-04
Lowell Warner Weiss
Nut crimping tool
US3801453A
(en)
*
1972-02-11
1974-04-02
Transfer Systems
Fuel assembly for power generating nuclear reactor
1975
1975-08-01
US
US05/601,000
patent/US4036692A/en
not_active
Expired – Lifetime
1976
1976-04-05
CA
CA249,605A
patent/CA1064741A/en
not_active
Expired
1976-04-12
IL
IL49396A
patent/IL49396A/en
unknown
1976-04-20
NL
NLAANVRAGE7604115,A
patent/NL177535C/en
not_active
IP Right Cessation
1976-04-21
EG
EG235/76A
patent/EG13517A/en
active
1976-04-27
BE
BE166493A
patent/BE841173A/en
not_active
IP Right Cessation
1976-04-28
CH
CH534476A
patent/CH607238A5/xx
not_active
IP Right Cessation
1976-05-04
GB
GB18252/76A
patent/GB1516957A/en
not_active
Expired
1976-05-07
LU
LU74897A
patent/LU74897A1/xx
unknown
1976-05-13
DK
DK214376A
patent/DK143924C/en
not_active
IP Right Cessation
1976-05-13
IT
IT09446/76A
patent/IT1067142B/en
active
1976-05-14
AT
AT357376A
patent/AT361586B/en
not_active
IP Right Cessation
1976-05-14
BR
BR7603095A
patent/BR7603095A/en
unknown
1976-05-14
ES
ES447973A
patent/ES447973A1/en
not_active
Expired
1976-07-10
DE
DE2631182A
patent/DE2631182C3/en
not_active
Expired
1976-07-30
FR
FR7623311A
patent/FR2319956A1/en
active
Granted
1976-07-30
JP
JP51090429A
patent/JPS5218590A/en
active
Granted
1976-11-12
JP
JP13543776A
patent/JPS52115500A/en
active
Granted
1979
1979-08-10
CA
CA333,585A
patent/CA1091367A/en
not_active
Expired
1985
1985-01-04
NL
NL8500021A
patent/NL8500021A/en
not_active
Application Discontinuation
Cited By (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
FR2490393A1
(en)
*
1980-09-12
1982-03-19
Westinghouse Electric Corp
RECONSTITUABLE FUEL ASSEMBLY FOR A NUCLEAR REACTOR
EP0054235A1
(en)
*
1980-12-16
1982-06-23
Westinghouse Electric Corporation
Fuel assembly for a nuclear reactor
FR2497997A1
(en)
*
1980-12-16
1982-07-16
Westinghouse Electric Corp
COMBUSTIBLE ASSEMBLY FOR NUCLEAR REACTORS
Also Published As
Publication number
Publication date
CA1064741A
(en)
1979-10-23
DE2631182B2
(en)
1978-08-24
DK214376A
(en)
1977-02-02
JPS5218590A
(en)
1977-02-12
NL177535C
(en)
1985-10-01
CH607238A5
(en)
1978-11-30
DK143924C
(en)
1982-05-17
LU74897A1
(en)
1977-01-14
CA1091367A
(en)
1980-12-09
AT361586B
(en)
1981-03-25
EG13517A
(en)
1981-12-31
US4036692A
(en)
1977-07-19
NL177535B
(en)
1985-05-01
NL7604115A
(en)
1977-02-03
NL8500021A
(en)
1985-05-01
JPS5510877B2
(en)
1980-03-19
FR2319956B1
(en)
1982-10-08
ATA357376A
(en)
1980-08-15
DE2631182A1
(en)
1977-02-03
FR2319956A1
(en)
1977-02-25
BE841173A
(en)
1976-08-16
IT1067142B
(en)
1985-03-12
IL49396A0
(en)
1976-07-30
BR7603095A
(en)
1977-05-24
ES447973A1
(en)
1977-12-01
DK143924B
(en)
1981-10-26
DE2631182C3
(en)
1979-04-26
JPS52115500A
(en)
1977-09-28
IL49396A
(en)
1980-09-16
JPS546439B2
(en)
1979-03-28
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Legal Events
Date
Code
Title
Description
1978-11-29
PS
Patent sealed [section 19, patents act 1949]
1990-01-04
PCNP
Patent ceased through non-payment of renewal fee
