US3897183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Briquette molding apparatus and breaker
Assignee: United States Steel Corp
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Filing: 1972-03-31
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Granted: 1975-07-29
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Expires: 1992-03-31
Abstract
Abstract Loose material such as iron ore may be formed into a briquette sheet and separated into their individual briquettes by applying impact forces on opposite sides of the briquette sheet and to next adjacent briquettes.
Inventors
- 👤 Gottfried Hofmann
- 👤 Frank Kennedy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:57
CPC Classifications
B; B30; B30B; B30B11/00; B30B11/16; B30B15/00; B30B15/0005; Y; Y10; Y10T; Y10T225/00; Y10T225/30; Y10T225/329; Y10T225/371
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
114 words
In a briquetting machine including roller presses that form sheets of briquettes, the improvement which comprises: at least two impacting devices, located adjacent to the sheet exit of said machine and arranged opposite to each other along the length of said exit, each of said devices having one or more impact means, each of said means being adapted to apply impact forces at the plane of each sheet, and movement control means to bring the impact means of the opposed devices into parallel overlapping relationship with each other at the plane of the sheet exit and spaced from each other a distance corresponding to the distance between parallel briquette pockets in the briquetting machine.
Claim 2
Dependent Claim
114 words
In a briquetting machine including roller presses that form sheets of briquettes, the improvement which comprises: at least two impacting devices, located adjacent to the sheet exit of said machine and arranged opposite to each other along the length of said exit, each of said devices having one or more impact means, each of said means being adapted to apply impact forces at the plane of each sheet, and movement control means to bring the impact means of the opposed devices into parallel overlapping relationship with each other at the plane of the sheet exit and spaced from each other a distance corresponding to the distance between parallel briquette pockets in the briquetting machine.
Claim 3
Dependent Claim
38 words
The machine of claim 1 wherein said impact devices include a cylindrical support member axially aligned with the length of said sheet exit and having mounted thereon a plurality of impact means extending radially outwardly from said support.
Claim 4
Dependent Claim
17 words
The machine of claim 2 wherein said impact means are solid members rigidly attached to said support.
Claim 5
Dependent Claim
24 words
The machine of claim 3 wherein the impact means are disposed in rows, each row being staggered with respect to its peripherally adjacent rows.
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) | 1978-07-28 | 1979-01-27 | 1979-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-28 | 1983-01-27 | 1983-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-28 | 1987-01-27 | 1987-07-29 | $7700.00 | Window Closed / Lapsed |