US3633866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for cladding metal
Assignee: SHAPEWELD Inc
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Filing: 1970-01-14
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Granted: 1972-01-11
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Expires: 1990-01-14
Abstract
Abstract In the metal-cladding method disclosed a body of molten metal is located above the surface of the base metal to be clad. The metal is allowed to flow downwardly toward the surface through a restriction that shapes the metal striking the surface into an elongated narrow stream. The stream is about as long as the longest dimension of the surface being clad. The apparatus of the invention includes a mold having a crucible to hold the molten metal and a slot for restricting the flow of the molten metal into the mold cavity enclosing the surface being clad. The slot shapes the metal into an elongated, narrow stream that is about as long as the longest dimension of the surface being clad.
Inventors
- 👤 Charles F Funk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:51
CPC Classifications
C; C23; C23C; C23C6/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
284 words
A mold for using the Thermit process to clad the upwardly facing substantially horizontal and flat surface of a metal member comprising an open-bottomed metal-shaping section for encircling the upwardly facing surface to be clad having a cavity located above the metal surface to confine the clad metal on the surface in the desired shape and thickness, a crucible section located above the metal-shaping section for holding the Thermit material while it reacts and produces a quantity of superheated weld metal to fuse with the metal surface to be clad, and a passageway connecting the crucible section to the cavity in the metal-shaping section comprising an elongated narrow slot extending substantially the length of the surface to be clad to restrict the flow of superheated weld metal from the crucible section, said slot having a width such that the flow of the molten metal is restricted sufficiently to cause it to flow through the slot against the surface being clad in a stream as long as the slot to produce turbulence in the molten metal adjacent the surface being clad and to supply molten metal directly against the surface being clad along substantially its entire length, said crucible section having an opening in the bottom thereof above the elongated slot that can be closed with one or more plates to hold the Thermit material in the crucible section until the reaction is completed after which the plate will melt and allow the superheated weld metal to flow through the opening toward the slot, said mold further having downwardly converging surfaces between the opening and the slot to direct the molten metal from the opening to the slot uniformly along the length of the slot.
Claim 2
Dependent Claim
284 words
A mold for using the Thermit process to clad the upwardly facing substantially horizontal and flat surface of a metal member comprising an open-bottomed metal-shaping section for encircling the upwardly facing surface to be clad having a cavity located above the metal surface to confine the clad metal on the surface in the desired shape and thickness, a crucible section located above the metal-shaping section for holding the Thermit material while it reacts and produces a quantity of superheated weld metal to fuse with the metal surface to be clad, and a passageway connecting the crucible section to the cavity in the metal-shaping section comprising an elongated narrow slot extending substantially the length of the surface to be clad to restrict the flow of superheated weld metal from the crucible section, said slot having a width such that the flow of the molten metal is restricted sufficiently to cause it to flow through the slot against the surface being clad in a stream as long as the slot to produce turbulence in the molten metal adjacent the surface being clad and to supply molten metal directly against the surface being clad along substantially its entire length, said crucible section having an opening in the bottom thereof above the elongated slot that can be closed with one or more plates to hold the Thermit material in the crucible section until the reaction is completed after which the plate will melt and allow the superheated weld metal to flow through the opening toward the slot, said mold further having downwardly converging surfaces between the opening and the slot to direct the molten metal from the opening to the slot uniformly along the length of the slot.
Claim 3
Dependent Claim
271 words
A mold for using the Thermit process to clad the upwardly facing substantially horizontal and flat surface of a metal member comprising a open-bottomed metal-shaping section for encircling the upwardly facing surface to be clad having a cavity located above the metal surface to confine the clad metal on the surface in the desired shape and thickness, a crucible section located above the metal-shaping section for holding the Thermit material while it reacts and produces a quantity of superheated weld metal to fuse with the metal surface to be clad, and a passageway connecting the crucible section to the cavity in the metal-shaping section comprising an elongated narrow slot extending substantially the length of the surface to be clad to restrict the flow of superheated weld metal from the crucible section, said slot having a width such that the flow of the molten metal is restricted sufficiently to cause it to flow through the slot against the surface being clad in a stream as long as the slot to produce turbulence in the molten metal adjacent the surface being clad and to supply molten metal directly against the surface being clad along substantially its entire length, said crucible section having an opening in the bottom thereof above the elongated slot to serve as a gate through which the molten metal can flow from the crucible section to the elongated slot, said opening being substantially wider and shorter than the slot, said mold further having downwardly converging surfaces between the opening and the slot to direct the molten metal from the opening to the slot uniformly along the length of the slot.
Claim 4
Dependent Claim
271 words
A mold for using the Thermit process to clad the upwardly facing substantially horizontal and flat surface of a metal member comprising a open-bottomed metal-shaping section for encircling the upwardly facing surface to be clad having a cavity located above the metal surface to confine the clad metal on the surface in the desired shape and thickness, a crucible section located above the metal-shaping section for holding the Thermit material while it reacts and produces a quantity of superheated weld metal to fuse with the metal surface to be clad, and a passageway connecting the crucible section to the cavity in the metal-shaping section comprising an elongated narrow slot extending substantially the length of the surface to be clad to restrict the flow of superheated weld metal from the crucible section, said slot having a width such that the flow of the molten metal is restricted sufficiently to cause it to flow through the slot against the surface being clad in a stream as long as the slot to produce turbulence in the molten metal adjacent the surface being clad and to supply molten metal directly against the surface being clad along substantially its entire length, said crucible section having an opening in the bottom thereof above the elongated slot to serve as a gate through which the molten metal can flow from the crucible section to the elongated slot, said opening being substantially wider and shorter than the slot, said mold further having downwardly converging surfaces between the opening and the slot to direct the molten metal from the opening to the slot uniformly along the length of the slot.
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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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |