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US 7,606,286 B2Granted
Coreless furnace coil clamp
AssigneeAjax Tocco Magnethermic Corporation
InventorJames Evans Elliott
Life of this patent
Estimating the term…
Abstract
A coreless induction furnace includes a crucible for holding a material to be heated. An induction coil is wound about the crucible. A frame supporting the crucible and the induction coil is wound about the crucible. An induction coil loading arrangement includes at least one clamping assembly for providing a leveraged axial force to an upper side of the induction coil.
Claims18
A coreless induction furnace, comprising
- a crucible for holding a material to be heated;
- an induction coil wound about said crucible;
- a frame supporting said crucible and said induction coil wound about said crucible;
- and
- an induction coil loading arrangement including at least one clamping assembly applying a leveraged axial force to an upper side of said induction coil, wherein said at least one clamping assembly includes a lever pivotally mounted to said frame with a first leg having a spring force applied thereto and a second leg applying said leveraged axial force downwardly on said induction coil due to said lever being pivotally mounted to said frame.
2 more elements
A coreless induction furnace, comprising
- a crucible for holding a material to be heated;
- an induction coil wound about said crucible;
- a frame supporting said crucible and said induction coil wound about said crucible, said frame including a plurality of support columns spaced radially outward relative to said induction coil and spaced apart circumferentially relative to one another;
- and
- an induction coil loading arrangement including at least one clamping assembly applying a leveraged axial force to an upper side of said induction coil, said at least one clamping assembly mounted to each of said plurality of support columns to provide said leveraged axial force to said upper side of said induction coil, wherein each of said at least one clamping assembly includes a lever pivotally mounted to a corresponding one of said plurality of support columns, said lever having a first leg with a spring force applied thereto and a second leg applying said leveraged axial force downwardly on said induction coil due to said lever being pivotally mounted to said frame.
2 more elements
A coreless induction furnace, comprising:
- a crucible for holding a material to be heated;
- an induction coil wound about said crucible;
- a frame supporting said crucible and said induction coil wound about said crucible;
- an induction coil loading arrangement including at least one clamping assembly for-providing a leveraged axial force to an upper side of said induction coil;
- and
- said at least one clamping assembly including a lever pivotally mounted to said frame for applying said leveraged axial force downwardly on said induction coil, said lever having a first leg urged radially outwardly relative to said induction coil and a second leg extending toward said induction coil that applies said leveraged axial force downwardly on said induction coil due to said lever being pivotally connected to said frame and said first leg being urged radially outwardly.
3 more elements
An induction coil loading arrangement for a coreless induction furnace having a crucible and an induction coil wound about the crucible, said loading arrangement comprising:
- a frame for supporting the crucible and the induction coil;
- and
- at least one clamping assembly connected to said frame for applying an axial force onto the induction coil, said at least one clamping assembly including a lever pivotally secured to said frame, said lever having a first portion connected to said frame so as to be urged in a direction radially away from the induction coil and a second portion extending toward the induction coil for applying said axial force onto the induction coil.
A coreless induction furnace having an induction coil loading arrangement, comprising
- a crucible for holding a material to be heated;
- an induction coil wound about said crucible;
- a frame supporting said crucible and said induction coil wound about said crucible;
- and
- a plurality of clamping assemblies for providing a leveraged axial force to an upper side of said induction coil, each of said plurality of clamping assemblies having a lever and a pivotal connection between said lever and said frame, said lever having a first leg extending downward relative to said pivotal connection and a second leg extending toward an upper axial end of said induction coil, said pivotal connection allows a force applied to said lever first leg to be leveraged and applied to said upper axial end of said induction coil.
2 more elements
Dependencies are inferred from the claim text.