US3942658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Installation for agglomeration of minerals on a continuous circular grate
Assignee: Creusot Loire Enterprises SA
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Filing: 1974-08-19
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Granted: 1976-03-09
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Expires: 1994-08-19
Abstract
Abstract An installation for the agglomeration of minerals including, a rotatable circular track, a plurality of grate-carrying cars which rest on the track and move with it through various treatment zones, and a device for moving the cars relative to the track through a discharge zone. The device may tilt each car as it passes through the discharge zone in order to unload treated minerals from the grate on the car.
Inventors
- 👤 Edouard Bonnaure
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:36
CPC Classifications
F; F27; F27B; F27B21/00; F27B21/06
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
193 words
An installation for agglomeration of minerals on a circular grate, having: a succession of independent grate-carrier cars each of said cars having a front and a rear axle moving through successive loading, ignition, baking, cooling and discharge zones, wheels for each car including wheels on said rear axle, two circular co-axial tracks receiving said wheels driven simultaneously and continuously at the same adjustable constant angular speed, a cylically operable device in the discharge zone independent of the driving of the tracks for individual displacement of said cars with respect to said tracks, the duration of the cycle of operation of said device being proportional to the angular speed of the tracks, said device for individual displacement of said grate-carrier cars including an auxiliary control car movable along a path co-axial with said tracks, articulated arms for said control car, seizure means for said arms engageable with a member at the front portion of each of said cars, means for manipulating said arms, and a retractable jack for said arms operable to raise the front portion of each of said cars from said tracks to tilt each of said cars about its rear axle.
Claim 2
Dependent Claim
193 words
An installation for agglomeration of minerals on a circular grate, having: a succession of independent grate-carrier cars each of said cars having a front and a rear axle moving through successive loading, ignition, baking, cooling and discharge zones, wheels for each car including wheels on said rear axle, two circular co-axial tracks receiving said wheels driven simultaneously and continuously at the same adjustable constant angular speed, a cylically operable device in the discharge zone independent of the driving of the tracks for individual displacement of said cars with respect to said tracks, the duration of the cycle of operation of said device being proportional to the angular speed of the tracks, said device for individual displacement of said grate-carrier cars including an auxiliary control car movable along a path co-axial with said tracks, articulated arms for said control car, seizure means for said arms engageable with a member at the front portion of each of said cars, means for manipulating said arms, and a retractable jack for said arms operable to raise the front portion of each of said cars from said tracks to tilt each of said cars about its rear axle.
Claim 3
Dependent Claim
33 words
An installation for agglomeration of minerals according to claim 1, said device including a set of pivoted jacks and means of synchronising the motions of said jacks for pushing and tilting said cars.
Claim 4
Dependent Claim
81 words
An installation for agglomeration of minerals according to claim 2, said set including three jacks one of said jacks displacing a grate-carrier car at a speed higher than the speed of said tracks, another of said jacks raising the front of the car above said tracks to tilt the car about its rear axle, and the third of said jacks displacing the car after emptying at a progressively decreasing speed until the car reaches the speed of displacement of said tracks.
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) | 1979-03-09 | 1979-09-08 | 1980-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-09 | 1983-09-08 | 1984-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-09 | 1987-09-08 | 1988-03-09 | $7700.00 | Window Closed / Lapsed |