Patent US3705285A successfully refreshed from Google Patents.
US3705285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mobile apparatus for the induction heating of metal ingots
Assignee: Growth International Inc
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Filing: 1971-11-05
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Granted: 1972-12-05
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Expires: 1991-11-05
Abstract
Abstract Induction heating apparatus is disclosed comprised of a track mounted wheeled carrier carrying one or more induction heating coil assemblies. The carrier is adapted to be moved along the track by motor means mounted on the carrier, and electrical power for energizing the motor means and the induction heating coil assembly or assemblies is transmitted thereto by means of a contact device such as a pantograph carried by the carrier for sliding engagement with an overhead or underground conductor. All equipment necessary to the operation of the induction heating coil assembly, such as transformers, capacitor banks, cooling means and the like are mounted on the carrier.
Inventors
- 👤 John F Cachat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:10
CPC Classifications
C; C21; C21D; C21D9/00; C21D9/70
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
112 words
Apparatus for the induction heating of a metal ingot comprising, a wheeled carrier movable relative to an underlying surface, an induction heating coil disposed on said carrier in a fixed location relative thereto and for movement therewith, said carrier being adapted to support an ingot to be heated in induction heating relationship with respect to said coil thereon, a source of alternating current separate from said carrier and including conductor means, and means including contact means carried by said wheeled carrier for connecting said coil with said source of alternating current for said coil to be energized during movement of said carrier, said contact means being slidably engagable with said conductor means.
Claim 2
Dependent Claim
112 words
Apparatus for the induction heating of a metal ingot comprising, a wheeled carrier movable relative to an underlying surface, an induction heating coil disposed on said carrier in a fixed location relative thereto and for movement therewith, said carrier being adapted to support an ingot to be heated in induction heating relationship with respect to said coil thereon, a source of alternating current separate from said carrier and including conductor means, and means including contact means carried by said wheeled carrier for connecting said coil with said source of alternating current for said coil to be energized during movement of said carrier, said contact means being slidably engagable with said conductor means.
Claim 3
Dependent Claim
37 words
Apparatus according to claim 1, and an electric motor mounted on said wheeled carrier for moving said carrier relative to said underlying surface, said motor being connected to said source of alternating current through said contact means.
Claim 4
Dependent Claim
16 words
Apparatus according to claim 2, and motor control means between said contact means and said motor.
Claim 5
Dependent Claim
36 words
Apparatus according to claim 2, and a source of cooling fluid on said wheeled carrier for movement therewith, and means connecting said source of fluid with said coil for circulation of cooling fluid through said coil.
Claim 6
Dependent Claim
55 words
Apparatus according to claim 1, and track means between said wheeled carrier and underlying surface and on which said carrier is supported for rolling movement, an electric motor on said carrier for moving said carrier along said track means, and means connecting said electric motor to said source of alternating current through said contact means.
Claim 7
Dependent Claim
24 words
Apparatus according to claim 5, wherein said means connecting said motor to said source of alternating current includes means operable to control said motor.
Claim 8
Dependent Claim
62 words
Apparatus according to claim 1, wherein said coil includes coil portions pivotally mounted on said carrier for movement between first and second positions, said coil portions when in one of said positions being spaced apart to facilitate introducing or removing a workpiece therebetween and in the other of said positions being disposed in inductive heating relationship with respect to a workpiece therebetween.
Claim 9
Dependent Claim
162 words
Apparatus for the induction heating of a metal ingot comprising: A wheeled carrier movable relative to an underlying support surface, an induction heating coil disposed on said carrier in a fixeD location relative thereto and for movement therewith, track means between said carrier and underlying surface for supporting and guiding movement of said carrier and coil relative to said underlying surface, an electric motor on said carrier for moving said carrier and coil along said track means, a source of cooling fluid mounted on said carrier, means connecting said source of fluid with said coil for circulation of cooling fluid through said coil, a source of alternating current separate from said wheeled carrier and including conductor means, contact means carried by said wheeled carrier for sliding engagement with said conductor means, and means connecting said motor and coil with said contact means for said motor and coil to be connected to said alternating current source and energizable during movement of said carrier.
Claim 10
Dependent Claim
162 words
Apparatus for the induction heating of a metal ingot comprising: A wheeled carrier movable relative to an underlying support surface, an induction heating coil disposed on said carrier in a fixeD location relative thereto and for movement therewith, track means between said carrier and underlying surface for supporting and guiding movement of said carrier and coil relative to said underlying surface, an electric motor on said carrier for moving said carrier and coil along said track means, a source of cooling fluid mounted on said carrier, means connecting said source of fluid with said coil for circulation of cooling fluid through said coil, a source of alternating current separate from said wheeled carrier and including conductor means, contact means carried by said wheeled carrier for sliding engagement with said conductor means, and means connecting said motor and coil with said contact means for said motor and coil to be connected to said alternating current source and energizable during movement of said carrier.
Claim 11
Dependent Claim
62 words
Apparatus according to claim 8, wherein said coil includes coil portions pivotally mounted on said carrier for movement between first and second positions, said coil portions when in one of said positions being spaced apart to facilitate introducing or removing a workpiece therebetween and in the other of said positions being disposed in inductive heating relationship with respect to a workpiece therebetween.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-12-05 | 1976-06-05 | 1976-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-05 | 1980-06-05 | 1980-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-05 | 1984-06-05 | 1984-12-05 | $7700.00 | Window Closed / Lapsed |