US3764042A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reciprocable slidable gate with rotating slide element
Assignee: United States Steel Corp
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Filing: 1972-08-03
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Granted: 1973-10-09
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Expires: 1992-08-03
Abstract
Abstract A slidable gate mechanism for controlling teeming of material from a bottom-pour vessel, and a method of controlling teeming. The closure element is a disk which is mounted for rotational movement in a linearly reciprocable tray. The disk has a teeming opening on its central axis movable into alignment with the vessel outlet, and an imperforate area movable under the outlet to close it. Each time the outlet is closed, the disk is indexed to present a fresh portion of the imperforate area to the outlet, thus prolonging life of the disk.
Inventors
- 👤 E Shapland
- 👤 J Shapland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:33
CPC Classifications
B; B22; B22D; B22D41/00; B22D41/14; B22D41/22; B22D41/24; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/6161; Y10T137/6164; Y10T137/6178
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
126 words
A slidable gate mechanism for attachmEnt to a vessel which has an outlet in its bottom wall for teeming material therefrom, said mechanism comprising supporting means for attachment to the vessel, a closure element, means mounting said element in said supporting means for both linear reciprocable movement and rotational movement with respect thereto, said element having a teeming opening and an imperforate area, means for moving said element linearly selectively to a position in which said opening is aligned with the outlet to permit teeming and positions in which portions of said imperforate area are under the outlet to close the outlet, and means for rotationally indexing said element to present a fresh portion of the imperforate area to the outlet as the outlet is closed.
Claim 2
Dependent Claim
126 words
A slidable gate mechanism for attachmEnt to a vessel which has an outlet in its bottom wall for teeming material therefrom, said mechanism comprising supporting means for attachment to the vessel, a closure element, means mounting said element in said supporting means for both linear reciprocable movement and rotational movement with respect thereto, said element having a teeming opening and an imperforate area, means for moving said element linearly selectively to a position in which said opening is aligned with the outlet to permit teeming and positions in which portions of said imperforate area are under the outlet to close the outlet, and means for rotationally indexing said element to present a fresh portion of the imperforate area to the outlet as the outlet is closed.
Claim 3
Dependent Claim
53 words
A mechanism as defined in claim 1 in which said mounting means includes a tray linearly movable with respect to said supporting means, and said element includes a disk mounted in said tray for rotation on a vertical axis with respect thereto, said teeming opening being on the central axis of said disk.
Claim 4
Dependent Claim
80 words
A mechanism as defined in claim 2 in which said indexing means includes a ring carried by the outer circumference of said disk, spaced apart ratchet teeth on said ring, and a pawl mounted on said supporting means cooperable with said teeth to allow said disk to move to a position in which said opening is aligned with the outlet without indexing the disk, but to index the disk as it moves in the opposite direction to close the outlet.
Claim 5
Dependent Claim
61 words
A mechanism as defined in claim 1 in which said supporting means includes a housing having outwardly extending flanges adapted to be bolted to the vessel and openings in its top and bottom, said mechanism further comprising a top plate located within the opening in the top of said housing and having an orifice to be aligned with the vessel outlet.
Claim 6
Dependent Claim
57 words
A mechanism as defined in claim 4 in which said mounting means includes a tray linearly movable with respect to said housing, and compression springs mounted in said tray and bearing against said element to maintain said element in a tight relation with said top plate and said top plate in a tight relation with the vessel.
Claim 7
Dependent Claim
52 words
The combination, with a bottom pour vessel having a nozzle in its bottom wall, and a mounting plate fixed to the bottom wall surrounding said nozzle, of a slidable gate mechanism attached to said mounting plate for controlling teeming of material through said outlet, said mechanism being constructed as defined in claim
Claim 8
Independent Claim
79 words
A method of controlling teeming of material through an outlet in the bottom of a vessel, said method comprising linearly moving a reciprocable closure element between a position in which a teeming opening in the element is aligned with the outlet, and a position in which an imperforate area of the element is under the outlet to close the outlet, and rotationally indexing said element with each operation cycle to present a fresh portion there of to the outlet.
Claim 9
Independent Claim
79 words
A method of controlling teeming of material through an outlet in the bottom of a vessel, said method comprising linearly moving a reciprocable closure element between a position in which a teeming opening in the element is aligned with the outlet, and a position in which an imperforate area of the element is under the outlet to close the outlet, and rotationally indexing said element with each operation cycle to present a fresh portion there of to the outlet.
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) | 1976-10-08 | 1977-04-09 | 1977-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-08 | 1981-04-09 | 1981-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-08 | 1985-04-09 | 1985-10-09 | $7700.00 | Window Closed / Lapsed |