Metal working – Method of mechanical manufacture – Disassembling
Patent
1985-03-25
1987-03-03
Goldberg, Howard N.
Metal working
Method of mechanical manufacture
Disassembling
29723, 414786, B23P 1902, B23P 1900
Patent
active
046464140
ABSTRACT:
A device for gripping and detaching a top nozzle subassembly from the upper end portions of the guide thimbles in a reconstitutable fuel assembly includes a central spider assembly disposable in overlying relation to an upper hold-down plate of the top nozzle subassembly, locating lugs arranged for insertion into coolant flow openings in the hold-down plate, collars interconnected to the spider and being disposed on the locating lugs and bearing on the hold-down plate when the locating lugs are inserted in the flow openings, and elongated studs received through and rotatable within respective central bores defined in the locating lugs. Upon rotation of the studs in one direction, compression of the hold-down springs disposed between the plates relieves the tension on the guide thimble upper end portions whereby the upper end portions are thereby prepared to be severed at locations immediately below the upper limit. After severing, rotation of the studs in the opposite direction allows the hold-down plate to be released from the unsevered guide thimble upper end portions at the upper limit. In case the hold-down plate does not release, positive release is obtained through the use of an impact-transmitting rod which is mounted in the central spider and attachable at its lower end to the hold-down plate.
REFERENCES:
patent: 3514838 (1970-06-01), Freeborg
patent: 3768668 (1973-10-01), Schukei
patent: 3887980 (1975-06-01), Yates et al.
patent: 4078967 (1978-04-01), Anthony
patent: 4219386 (1980-08-01), Osborne et al.
patent: 4321111 (1982-04-01), Jabsen
patent: 4355449 (1982-10-01), Edwards et al.
patent: 4358421 (1982-11-01), Jabsen
patent: 4376092 (1983-04-01), Kmonk et al.
Gjertsen Robert K.
Wilson John F.
Golabi Irene Graves
Goldberg Howard N.
Westinghouse Electric Corp.
LandOfFree
Device for gripping and detaching a top nozzle subassembly from does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device for gripping and detaching a top nozzle subassembly from , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for gripping and detaching a top nozzle subassembly from will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1009248