Title:
電極コラム
Document Type and Number:
Japanese Patent JP4851444
Kind Code:
B2
Abstract:
A system is disclosed for lowering ("slipping") and/or raising ("back slipping") electrodes relative to an electrode column. The system includes an electrode column having at least one slipping sleeve and a power clamp, each of which apply a radial clamping force to the electrode. The magnitudes of the clamping forces are selected such that application of a downwardly directed axial force on the one or more slipping sleeves, in combination with the weight of the electrode, are sufficient to overcome the resistive force of the power clamp, resulting in downward movement of the electrode without release of the clamping forces. Electrode columns having two movable slipping sleeves are also capable of raising the electrode relative to the furnace without release of the clamping forces.
More Like This:
Inventors:
McCarre, Ferimpy.
Nakatsu, Briar K.
Voermann, Nils W..
Darini, Maurizio
Southall, Queen Dee.
Nakatsu, Briar K.
Voermann, Nils W..
Darini, Maurizio
Southall, Queen Dee.
Application Number:
JP2007516911A
Publication Date:
January 11, 2012
Filing Date:
May 11, 2005
Export Citation:
Assignee:
HATCH LTD.
International Classes:
F27D11/08; C21C5/52; F27B3/20; H05B7/06; H05B7/10; H05B7/102; H05B7/109
Domestic Patent References:
| JPS4816235A | ||||
| JPS5776788A | 1982-05-13 | |||
| JPS60189994A | ||||
| JPS5544550A | 1980-03-28 |
Foreign References:
| US3247305A | 1966-04-19 | |||
| US4481637A | 1984-11-06 | |||
| US4243832A | 1981-01-06 | |||
| US3898364A | 1975-08-05 | |||
| US5297160A | 1994-03-22 | |||
| US4292460A | 1981-09-29 | |||
| US3634589A | 1972-01-11 | |||
| US2845468A | 1958-07-29 | |||
| US4227030A | 1980-10-07 | |||
| US4422172A | 1983-12-20 | |||
| US3107267A | 1963-10-15 |
Attorney, Agent or Firm:
Patent Business Corporation Takewa International Patent Office