Apparatus for lifting graphite electrodes
AssigneeEXO Technologies LLC
InventorsMark Koenig, James J. Hansen, Jr.
Life of this patent
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Abstract
A lifting adaptor configured to lift a graphite electrode includes a main body having a threaded end to secure the lifting adaptor to threads of the graphite electrode, and a lifting component coupled to the main body opposite the threaded end to lift the graphite electrode. The threaded end of the main body may comprise a non-graphite material with a coefficient of thermal expansion (CTE) similar to Invar, within +/−0 to 1 (μm/(m K)) over a range from room temperature to 400 degrees Fahrenheit.
Claims21
An insert for a lifting adaptor configured to lift graphite electrodes, the insert comprising:
- a non-graphite material comprising:
- a threaded connection configured to mate with a graphite electrode;
- and
- a coefficient of thermal expansion (CTE) of less than 3 (μm/(m K)) over a temperature range from room temperature to 1000 degrees Fahrenheit.
A kit for a lifting adaptor configured to lift graphite electrodes, the kit comprising:
- a threaded insert configured to mate with a graphite electrode and comprising a non-graphite material having a coefficient of thermal expansion (CTE) within +/−0 to 1 (μm/(m K)) of the CTE of graphite over a temperature range from room temperature to 1000 degrees Fahrenheit;
- and
- a main body configured to receive the insert and comprising a lifting component.
A lifting adaptor configured to lift graphite electrodes, the lift adaptor comprising:
- a main body comprising:
- a threaded insert positioned at a first end thereof, the insert configured to mate with a graphite electrode and comprising a non-graphite material having a coefficient of thermal expansion (CTE) within +/−0 to 1 (μm/(m K)) of the CTE of graphite at a temperature of 1000 degrees Fahrenheit;
- and
- a lifting component positioned at a second end thereof.
Dependencies are inferred from the claim text.