US4117879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fixture for use in positioning the walls of an adjustable continuous-casting mold
Assignee: United States Steel Corp
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Filing: 1977-05-24
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Granted: 1978-10-03
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Expires: 1997-05-24
Abstract
Abstract A fixture for use in positioning the walls of an adjustable continuous-casting mold. The fixture includes a frame which is inserted in the mold and keys for engaging keyways in the upper and lower edges of the side walls of the mold to center the fixture. The fixture has positioning rods to be abutted by the adjustable end walls of the mold. The positioning rods are adjustable but remain equidistant from the center of the fixture.
Inventors
- 👤 Kenneth S. Rutherford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:03
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/04; B22D11/05
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
115 words
A fixture for use in adjusting the positions of the end walls of a continuous-casting mold, said fixture comprising: a frame adapted to be inserted in a mold; means on said frame engageable with the mold side walls at their upper and lower edges for centering the frame with respect to the mold; adjustable means carried by said frame at its opposite sides and adapted to abut the opposed adjustable end walls of the mold when the end walls are in the desired position of adjustment; and means carried by said frame for moving said adjustable means while maintaining the adjustable means at opposite sides of the frame equidistant from the center of the frame.
Claim 2
Dependent Claim
115 words
A fixture for use in adjusting the positions of the end walls of a continuous-casting mold, said fixture comprising: a frame adapted to be inserted in a mold; means on said frame engageable with the mold side walls at their upper and lower edges for centering the frame with respect to the mold; adjustable means carried by said frame at its opposite sides and adapted to abut the opposed adjustable end walls of the mold when the end walls are in the desired position of adjustment; and means carried by said frame for moving said adjustable means while maintaining the adjustable means at opposite sides of the frame equidistant from the center of the frame.
Claim 3
Dependent Claim
29 words
A fixture as defined in claim 1 in which the means for centering includes top and bottom transversely extending keys receivable in keyways formed in the mold side walls.
Claim 4
Dependent Claim
34 words
A fixture as defined in claim 2 in which said bottom key is moveable vertically and rotatably to enable it to clear the mold side walls as the fixture is inserted in the mold.
Claim 5
Dependent Claim
27 words
A fixture as defined in claim 1 in which said adjustable means includes positioning rods for abutting the mold end walls near both the top and bottom.
Claim 6
Dependent Claim
25 words
A fixture as defined in claim 4 in which said positioning rods are round in cross section to abut the end walls when they taper.
Claim 7
Dependent Claim
60 words
A fixture as defined in claim 4 in which the means for moving said adjustable means includes an upper pair of parallel horizontal shafts and a lower pair of parallel horizontal shafts, said shafts having right and left handed threaded portions, internally threaded sleeves receiving said threaded portions, and means for rotating said upper shafts and said lower shafts independently.
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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) | 1981-10-02 | 1982-04-03 | 1982-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-02 | 1986-04-03 | 1986-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-02 | 1990-04-03 | 1990-10-03 | $7700.00 | Window Closed / Lapsed |