US4247750A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vertically positioned submerged arc flux dam
Assignee: Caterpillar Inc
•
Filing: 1977-06-02
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Granted: 1981-01-27
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Expires: 1997-06-02
Abstract
Abstract Relates to a flux dam for submerged arc vertical position welding. The dam comprises a sheet of high temperature stable non-metallic material, a permanent magnet aligned with a first pole thereof substantially at a first surface of the sheet for magnetically attaching the sheet to a vertical workpiece generally parallel to and spaced by the thickness of the workpiece from a generally horizontal weld area of the vertical workpiece to an abutting horizontal workpiece, the magnet extending generally towards a second surface of the sheet, the magnet being affixed in the aforementioned alignment thereof. Also relates to an improvement in a welding method using said dam.
Inventors
- 👤 Robert F. Hupe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:36
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/02; B23K9/18
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
107 words
As an article of manufacture a generally vertically positioned flux dam, comprising: a sheet of high temperature stable non-metallic material; a high temperature resistant coating affixed along a top edge of said sheet; permanent magnet means aligned with first pole means thereof substantially at a first surface of said sheet magnetically attaching said sheet to a generally vertical workpiece generally parallel to and spaced by the thickness of said vertical workpiece from a generally horizontal weld groove of said vertical workpiece to an abutting workpiece, said magnet means extending generally towards a second surface of said sheet; and means affixing said magnet means in said alignment thereof.
Claim 2
Dependent Claim
107 words
As an article of manufacture a generally vertically positioned flux dam, comprising: a sheet of high temperature stable non-metallic material; a high temperature resistant coating affixed along a top edge of said sheet; permanent magnet means aligned with first pole means thereof substantially at a first surface of said sheet magnetically attaching said sheet to a generally vertical workpiece generally parallel to and spaced by the thickness of said vertical workpiece from a generally horizontal weld groove of said vertical workpiece to an abutting workpiece, said magnet means extending generally towards a second surface of said sheet; and means affixing said magnet means in said alignment thereof.
Claim 3
Dependent Claim
16 words
A flux dam as in claim 1, wherein said sheet comprises a ceramic fiber insulating material.
Claim 4
Dependent Claim
63 words
A flux dam as in claim 2, wherein said sheet further comprises a high temperature resistant plate attached along a first surface thereof to said ceramic fiber insulating material and wherein a first surface of said ceramic fiber insulating material corresponds to said first surface of said sheet and a second surface of said plate corresponds to said second surface of said sheet.
Claim 5
Dependent Claim
15 words
A flux dam as in claim 3, wherein said flexible plate comprises a plastic plate.
Claim 6
Dependent Claim
18 words
A flux dam as in claim 4, wherein said plastic plate comprises glass fibers in a plastic matrix.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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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) | 1984-01-27 | 1984-07-28 | 1985-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-27 | 1988-07-28 | 1989-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-27 | 1992-07-28 | 1993-01-27 | $7700.00 | Window Closed / Lapsed |