Turning – Radially moving rotating tool inside bore
Patent
1984-09-12
1986-05-20
Vlachos, Leonidas
Turning
Radially moving rotating tool inside bore
30107, 82 82, B23D 2108, B23D 2114
Patent
active
045893098
ABSTRACT:
A precision internal tube cutter can sever an upper end portion of a guide thimble inserted and attached within a passageway of a top nozzle adapter plate of an irradiated fuel assembly so as to facilitate reconstitution of the fuel assembly. Further, the upper end portion of the thimble can be cut without producing any burrs, roughness or distortion at the cut end. The cutter includes a body with upper and lower end portions of greater diameter sizes than that of an intermediate portion which interconnects them. A stem extends into an axial bore formed longitudinally through the body. A radial slot is defined within the intermediate body portion. In one embodiment, a pair of slides each with a cutting wheel rotatably mounted thereto are mounted within the slot. A lower conical end of the stem engages the slides and axial movement of the stem will cause radial movement of the slides. The slides are urged toward inward retracted positions by return springs mounted on the intermediate portion of the cutter body. In a second embodiment, the tube cutter incorporates a slidable pin within an eccentric lower bore for actuating a single slide and cutting wheel. However, in both embodiments of the cutter, its body, stem (or pin) and slide or slides are composed of a non-corrosive, anti-galling stainless steel alloy material which adapts the cutter to work for extended periods of time on an irradiated spent fuel assembly submerged in water.
REFERENCES:
patent: 334928 (1886-01-01), Baughman
patent: 340344 (1886-04-01), Mineo
patent: 455640 (1891-07-01), Rohland
patent: 560099 (1896-05-01), Kranzer
patent: 565850 (1896-08-01), Fitzpatrick
patent: 647104 (1900-04-01), Miller
patent: 655600 (1900-08-01), Brown et al.
patent: 672448 (1901-04-01), Mackenzie
patent: 837426 (1906-12-01), Seymour
patent: 890795 (1908-06-01), Putsch
patent: 914328 (1909-03-01), Barnes
patent: 941845 (1909-11-01), Barnes
patent: 1004782 (1911-10-01), Hardison
patent: 1126649 (1915-01-01), Musser et al.
patent: 1457258 (1923-05-01), Maher
patent: 2046241 (1936-06-01), Beard
patent: 2130580 (1938-09-01), Buckles
patent: 2247283 (1941-06-01), Young
patent: 2568683 (1951-09-01), Mayher
patent: 2744425 (1956-05-01), Wragg
patent: 3481225 (1969-12-01), Molloy
patent: 3939561 (1976-02-01), Nichols
Kearns Jerry
Vlachos Leonidas
Westinghouse Electric Corp.
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