Patent US2931639A successfully refreshed from Google Patents.
Patent US3687433A successfully refreshed from Google Patents.
US3687433A
Expired / Lapsed
US
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Protective device for conveyors
Assignee: United States Steel Corp
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Filing: 1971-01-08
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Granted: 1972-08-29
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Expires: 1991-01-08
Abstract
Abstract A device for protecting a conveyor which carries metal workpieces as they undergo a flame-cutting operation. Intended particularly for conveyors which carry continuously cast products as segments are cut therefrom. Conveyor includes endless chains and slats extending between chains. Flame-cutting apparatus travels in synchronism with workpiece as it cuts and sometimes lies directly over a slat. Protective device overlies such slat and workpiece rests thereon. Damage is confined to protective device if flame-cutting apparatus lies directly thereover.
Inventors
- 👤 Charles H Bode Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:48
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/12; B22D11/126; B23; B23K; B23K7/00; B23K7/002; B23K7/003
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
166 words
In combination with a conveyor and a flame-cutting apparatus supported to travel lengthwise of the conveyor thereabove, said conveyor comprising: a fixed frame; a pair of endless chains supported on said frame along its opposite sides; and a plurality of relatively high narrow slats mounted on the chains and extending transversely of the frame; said conveyor being adapted to support a workpiece while said apparatus travels in synchronism therewith and cuts the workpiece; protective devices for said slats, each of said devices comprising: an angle iron overlying the outer face and one side face of one of said slats; means removably affixing said angle iron to its slat; and a plurality of upstanding short similar length pieces fixed to the portion of the angle iron overlying the outer face of the slat; said pieces being adapted to have the workpiece rest thereon, whereby damage is confined to the protective device when the cutting means of said apparatus lies directly over a slat during a cutting operation.
Claim 2
Dependent Claim
166 words
In combination with a conveyor and a flame-cutting apparatus supported to travel lengthwise of the conveyor thereabove, said conveyor comprising: a fixed frame; a pair of endless chains supported on said frame along its opposite sides; and a plurality of relatively high narrow slats mounted on the chains and extending transversely of the frame; said conveyor being adapted to support a workpiece while said apparatus travels in synchronism therewith and cuts the workpiece; protective devices for said slats, each of said devices comprising: an angle iron overlying the outer face and one side face of one of said slats; means removably affixing said angle iron to its slat; and a plurality of upstanding short similar length pieces fixed to the portion of the angle iron overlying the outer face of the slat; said pieces being adapted to have the workpiece rest thereon, whereby damage is confined to the protective device when the cutting means of said apparatus lies directly over a slat during a cutting operation.
Claim 3
Dependent Claim
32 words
A combination as defined in claim 1 in which said pieces are angle irons, the legs of which lie at angles of approximately 45* to the edges of said first-named angle iron.
Claim 4
Dependent Claim
40 words
A combination as defined in claim 2 further including a chute beneath said conveyor for receiving slag produced in the cutting operation, said second-named angle irons being adapted to divert slag which falls on the protective device into said chute.
Claim 5
Dependent Claim
43 words
A combination as defined in claim 1 in which the means affixing said angle iron to its slat includes a plurality of bar segments overlying the other side face of the slat, and bolts extending through said bar segments, slats and angle iron.
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) | 1975-08-29 | 1976-02-28 | 1976-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-29 | 1980-02-28 | 1980-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-29 | 1984-02-28 | 1984-08-29 | $7700.00 | Window Closed / Lapsed |