US3602625A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Horizontal coreless induction furnace
Assignee: Park Ohio Holdings Corp
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Filing: 1970-04-06
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Granted: 1971-08-31
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Expires: 1990-04-06
Abstract
Abstract A coreless sectional induction melting or heating furnace is disclosed, one furnace section being a horizontally disposed heating chamber around which an induction coil is wound, another section being a charging section and a further section being a pour section, said charging section and said pour sections being angled with respect to said horizontally disposed section, spacing means are provided at the output end of the heating section adjacent to an end or ends of the heating coil, wherefore the mating plane between the charging section and the heating section or charging section, pour section and heating section, is disposed outwardly of the coil wrapped portion of the horizontally disposed heating chamber. In the operation of the furnace a head of molten metal is maintained in the charge and pour sections well above the level in the heating chamber.
Inventors
- 👤 William J Duca
- 👤 Mario Tama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:39
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/02; H05B6/22
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
118 words
A coreless sectional induction furnace for heating or melting metals comprising one section consisting of a horizontally disposed substantially cylindrical heating section, a shell, magnetic laminations and a refractory lining, another section consisting of a charging section having a shell and a refractory lining disposed at one end of said heating section and angled with respect thereto, an induction heating coil wound around said heating section, spacing means disposed at an outboard end of said heating section adjacent to an end of said heating coil, a mating plane between the refractory lining of said charging section and said heating section and angled with respect thereto and a metal discharge means at an opposite end of said heating section.
Claim 2
Dependent Claim
118 words
A coreless sectional induction furnace for heating or melting metals comprising one section consisting of a horizontally disposed substantially cylindrical heating section, a shell, magnetic laminations and a refractory lining, another section consisting of a charging section having a shell and a refractory lining disposed at one end of said heating section and angled with respect thereto, an induction heating coil wound around said heating section, spacing means disposed at an outboard end of said heating section adjacent to an end of said heating coil, a mating plane between the refractory lining of said charging section and said heating section and angled with respect thereto and a metal discharge means at an opposite end of said heating section.
Claim 3
Dependent Claim
23 words
A coreless sectional induction furnace as claimed in claim 1 wherein cooling means are provided at an outboard end of said heating section.
Claim 4
Dependent Claim
46 words
A coreless sectional induction furnace as claimed in claim 1 wherein a mating plane is provided between said discharge means and the heating section angled with respect thereto and disposed between a refractory lining of said discharge means and the refractory lining of said heating section.
Claim 5
Dependent Claim
25 words
A coreless sectional induction furnace as claImed in claim 1 wherein the metal discharge means comprises a furnace section having a shell and refractory lining.
Claim 6
Dependent Claim
33 words
A coreless sectional induction furnace as claimed in claim 1 wherein a coil clamping plate is disposed at either end of said heating section and secured to the shell of said heating section.
Claim 7
Dependent Claim
21 words
A coreless sectional induction furnace as claimed in claim 5 wherein cooling means are provided for cooling said coil clamping plates.
Claim 8
Dependent Claim
35 words
A coreless sectional induction furnace as claimed in claim 5 wherein spacer means are interposed between said charging section and one of said coil clamping plates disposed at an outboard end of said heating section.
Claim 9
Dependent Claim
34 words
A coreless sectional induction furnace as claimed in claim 1 wherein mica plating is interposed between mating surfaces of the refractory lining of the charging section and the heating section, said surfaces being sealed.
Claim 10
Dependent Claim
17 words
A coreless sectional induction furnace as claimed in claim 1 wherein said sections are detachably secured together.
Claim 11
Dependent Claim
20 words
A coreless sectional induction furnace as claimed in claim 1 wherein a removable plug is provided to drain said furnace.
Claim 12
Dependent Claim
196 words
A coreless sectional induction furnace for heating or melting metals comprising one section consisting of a horizontally disposed substantially cylindrical heating section, a shell, magnetic laminations and a refractory lining, another section being a charging section having a shell and a refractory lining disposed at one end of said heating section and angled with respect thereto, a further section being a metal pour section having a shell and refractory lining and disposed at an end of said heating section opposite to said charging section and angled with respect thereto, an induction heating coil wound around said heating section, spacing and cooling means disposed at either outboard end of said heating section adjacent to opposite ends of said heating coil, mating planes between the refractory lining of said charging section and said heating section and the shell of each outboard end of said heating coil and angled with respect thereto, the charging section being adapted to receive a charge of metal and the pour section being adapted to discharge molten metal, said charge and pour sections being of sufficient height to maintain a substantial head of molten metal above the level of metal in said heating section.
Claim 13
Dependent Claim
196 words
A coreless sectional induction furnace for heating or melting metals comprising one section consisting of a horizontally disposed substantially cylindrical heating section, a shell, magnetic laminations and a refractory lining, another section being a charging section having a shell and a refractory lining disposed at one end of said heating section and angled with respect thereto, a further section being a metal pour section having a shell and refractory lining and disposed at an end of said heating section opposite to said charging section and angled with respect thereto, an induction heating coil wound around said heating section, spacing and cooling means disposed at either outboard end of said heating section adjacent to opposite ends of said heating coil, mating planes between the refractory lining of said charging section and said heating section and the shell of each outboard end of said heating coil and angled with respect thereto, the charging section being adapted to receive a charge of metal and the pour section being adapted to discharge molten metal, said charge and pour sections being of sufficient height to maintain a substantial head of molten metal above the level of metal in said heating section.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-30 | 1975-03-01 | 1975-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-30 | 1979-03-01 | 1979-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-30 | 1983-03-01 | 1983-08-31 | $7700.00 | Window Closed / Lapsed |