Patent US3717034A successfully refreshed from Google Patents.
US3717034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for immersing and withdrawing bath examination means into and from a molten bath
Assignee: United States Steel Corp
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Filing: 1971-02-12
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Granted: 1973-02-20
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Expires: 1991-02-12
Abstract
Abstract Apparatus for immersing and withdrawing a sensor and a sample into and from a molten metal bath has a sensor and a sampler mounted on the lower end of a probe which is mounted for vertical movement inside a cooled jacket. The jacket is movable along a vertical runway which is pivoted from a service position to an operating position over the molten metal bath. The jacket is lowered along the runway to the surface of the bath and an air cylinder mounted on the jacket plunges the probe into the bath. When sensor readings and a sample are obtained, the air cylinder withdraws the probe back into the jacket where the protection and cooling effect of the jacket makes a liquidus arrest temperature for molten steel readily available. The jacket is then withdrawn from the bath and the runway pivoted back to the service position.
Inventors
- 👤 N Veselinovich
- 👤 D Dukelow
- 👤 M Orehoski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:58
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/10; G01N1/12; G01N1/125; C; C21; C21C; C21C5/00; C21C5/28; C21C5/42; C21C5/46; C21C5/4673; Y; Y10; Y10S; Y10S73/00; Y10S73/09
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
169 words
Apparatus for immersing and withdrawing bath examination means into and from a molten metal bath comprising a molten metal bath, a runway, means mounted adjacent the bath for moving the runway between an operating position near the bath and a service position away from the bath, a cooled jacket mounted for movement on the runway, a probe mounted for movement inside the jacket, bath examination means mounted on one end of the probe, means for moving the probe and mounted bath examination means in and out of the end of the jacket next to the bath with the runway in the operating position, and means for moving the jacket between a first position away from the bath and a second position with said one end of the jacket just above the surface of the bath whereby in said second position the bath examination means is placed in position to begin bath examination when said one end of the probe is moved out of the jacket and into the bath.
Claim 2
Dependent Claim
169 words
Apparatus for immersing and withdrawing bath examination means into and from a molten metal bath comprising a molten metal bath, a runway, means mounted adjacent the bath for moving the runway between an operating position near the bath and a service position away from the bath, a cooled jacket mounted for movement on the runway, a probe mounted for movement inside the jacket, bath examination means mounted on one end of the probe, means for moving the probe and mounted bath examination means in and out of the end of the jacket next to the bath with the runway in the operating position, and means for moving the jacket between a first position away from the bath and a second position with said one end of the jacket just above the surface of the bath whereby in said second position the bath examination means is placed in position to begin bath examination when said one end of the probe is moved out of the jacket and into the bath.
Claim 3
Dependent Claim
169 words
Apparatus for immersing and withdrawing bath examination means into and from a molten metal bath comprising a molten metal bath, a runway, means mounted adjacent the bath for moving the runway between an operating position near the bath and a service position away from the bath, a cooled jacket mounted for movement on the runway, a probe mounted for movement inside the jacket, bath examination means mounted on one end of the probe, means for moving the probe and mounted bath examination means in and out of the end of the jacket next to the bath with the runway in the operating position, and means for moving the jacket between a first position away from the bath and a second position with said one end of the jacket just above the surface of the bath whereby in said second position the bath examination means is placed in position to begin bath examination when said one end of the probe is moved out of the jacket and into the bath.
Claim 4
Dependent Claim
169 words
Apparatus for immersing and withdrawing bath examination means into and from a molten metal bath comprising a molten metal bath, a runway, means mounted adjacent the bath for moving the runway between an operating position near the bath and a service position away from the bath, a cooled jacket mounted for movement on the runway, a probe mounted for movement inside the jacket, bath examination means mounted on one end of the probe, means for moving the probe and mounted bath examination means in and out of the end of the jacket next to the bath with the runway in the operating position, and means for moving the jacket between a first position away from the bath and a second position with said one end of the jacket just above the surface of the bath whereby in said second position the bath examination means is placed in position to begin bath examination when said one end of the probe is moved out of the jacket and into the bath.
Claim 5
Dependent Claim
101 words
Apparatus according to claim 1 which includes a vessel holding the molten metal bath and a generally vertical runway support column beside said vessel and in which the means for moving the runway includes means attaching the runway to the support column in a position spaced apart from and generally parallel to said support column and means for pivoting said runway about said support and in which said means for moving said jacket includes a carriage mounted for movement on the runway and upon which the jacket is mounted and means attached to said carriage for raising and lowering said carriage.
Claim 6
Dependent Claim
20 words
Apparatus according to claim 2 in which the means for raising and lowering the carriage is mounted on said runway.
Claim 7
Dependent Claim
52 words
Apparatus according to claim 2 in which the means for raising and lowering said carriage includes sheave means mounted on the upper end of said runway and said support column, winch means mounted adjacent said runway, and cable means connecting said carriage and said winch means and operating over said sheave means.
Claim 8
Dependent Claim
63 words
Apparatus according to claim 1 in which the means for moving said probe includes a cylinder mounted in fixed relationship to said jacket, a double acting piston in said cylinder, a push rod connecting said piston and the other end of said probe, and means connected to said cylinder for admitting compressed air to said cylinder to move said probe within said jacket.
Claim 9
Dependent Claim
24 words
Apparatus according to claim 1 which includes a layer of molten slag covering said metal and means for preventing slag entry into the probe.
Claim 10
Dependent Claim
37 words
Apparatus according to claim 6 in which said means for preventing slag entry includes a plug mounted in the end of said jacket towards said bath and dislodged by movement of said probe out of said jacket.
Claim 11
Dependent Claim
58 words
Apparatus according to claim 6 in which said probe is mounted in spaced relationship to said jacket to create a gas passageway between said probe and said jacket and which apparatus includes a source of pressurized gas connected to said passageway so that gas exhausts from the end of said jacket towards said bath to prevent slag entry.
Claim 12
Dependent Claim
14 words
Apparatus according to claim 8 in which said pressurized gas is an inert gas.
Claim 13
Dependent Claim
36 words
Apparatus according to claim 6 in which said means for preventing slag entry includes a cap surrounding the end of said jacket towards said bath and dislodged by movement of said probe out of said jacket.
Claim 14
Dependent Claim
85 words
Apparatus according to claim 1 which includes a source of cooling fluid, a first hollow passageway in said jacket with the end away from said bath connected to said source of cooling fluid, and a second hollow passageway concentric with said first hollow passageway with its end towards said bath connected to the end of the first hollow passageway towards said bath and the end of said second hollow passageway away from said bath connected to discharge said cooling fluid from said second hollow passageway.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-20 | 1976-08-21 | 1977-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-20 | 1980-08-21 | 1981-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-20 | 1984-08-21 | 1985-02-20 | $7700.00 | Window Closed / Lapsed |