Patent US3763950A successfully refreshed from Google Patents.
Patent US3760960A successfully refreshed from Google Patents.
US3760960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for charging electric furnaces
Assignee: Mannesmann Demag AG
•
Filing: 1972-05-25
•
Granted: 1973-09-25
•
Expires: 1992-05-25
Abstract
Abstract An apparatus for charging electric furnaces with a hot charge, e.g., iron sponge pellets, which apparatus is provided with a transportable container discharging the charge through a shuttle conduit into a furnace feed opening.
Inventors
- 👤 E Spetzler
- 👤 D Terlaak
- 👤 P Schumacher
- 👤 W Hug
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:02
CPC Classifications
F; F27; F27B; F27B3/00; F27B3/10; F27B3/18; F27B3/183; F27D; F27D3/00; F27D3/10; F27D1/00; F27D1/18; F27D1/1808; F27D2001/1825; F27D2003/0001; F27D2003/0006; F27D2003/001; F27D2003/0034; F27D2003/008; F27D3/12; F27D2003/125
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
176 words
Apparatus for charging electric furnaces, comprising a. a mobile platform comprised of an elevated deck supported by at least four legs, each of which legs is mounted on a carriage supporting a plurality of wheels; b. track means definitive of a predetermined path between a furnace and a source of heated charge material; c. the wheels of said carriage being movable along said track means to move said mobile platform along said predetermined path; d. a plurality of hot charge storage containers supported adjacent the periphery of said mobile platform, each of said containers having an outlet at the lower end thereof; e. shuttle conduit means associated with each of said storage containers and supported on said platform for reciprocation between a predetermined inboard position and outboard position; f. filling sleeves carried by each of said conduits adapted to be connected to each of said outlets when said shuttle conduit means are in their inboard positions; and g. conduit outlets disposed in the inner end of said conduits for discharging conveyed hot charge into a furnace.
Claim 2
Dependent Claim
176 words
Apparatus for charging electric furnaces, comprising a. a mobile platform comprised of an elevated deck supported by at least four legs, each of which legs is mounted on a carriage supporting a plurality of wheels; b. track means definitive of a predetermined path between a furnace and a source of heated charge material; c. the wheels of said carriage being movable along said track means to move said mobile platform along said predetermined path; d. a plurality of hot charge storage containers supported adjacent the periphery of said mobile platform, each of said containers having an outlet at the lower end thereof; e. shuttle conduit means associated with each of said storage containers and supported on said platform for reciprocation between a predetermined inboard position and outboard position; f. filling sleeves carried by each of said conduits adapted to be connected to each of said outlets when said shuttle conduit means are in their inboard positions; and g. conduit outlets disposed in the inner end of said conduits for discharging conveyed hot charge into a furnace.
Claim 3
Dependent Claim
27 words
The apparatus of claim 1, further characterized in that a. said deck is generally U-shaped and is adapted to substantially surround a furnace for charging the same.
Claim 4
Dependent Claim
29 words
Apparatus in accordance with claim 2, further characterized in that a. a single one of said storage containers is disposed on each of said legs of said U-shaped deck.
Claim 5
Dependent Claim
36 words
Apparatus according to claim 1, further characterized in that a. said filling sleeves of said conduit means are provided with junctions sealed with protective gas for the connection of said conduit means with said container outlets.
Claim 6
Dependent Claim
36 words
Apparatus according to claim 1, further characterized in that a. said filling sleeves of said conduit means are provided with junctions sealed with sand packings for the connection of said conduit means with said container outlets.
Claim 7
Dependent Claim
29 words
Apparatus in accordance with claim 1, further characterized in that a. suspension and hoisting means adapted to handle the top of an electric furnace are mounted on said platform.
Claim 8
Dependent Claim
93 words
Apparatus in accordance with claim 1, in which a. said conduit means comprises an elongated closed channel means having a generally trapezoidal cross section; b. the upper surface of said filling sleeve being mounted on the rear upper surface of said conduit means; c. said conduit outlet being mounted on the lower innermost surface of said conduit means; d. said conduit means being supported on a multi-wheeled carriage; e. track means supported by said movable platform and adapted to support and guide said shuttle conduit for travel between said inboard and outboard positions.
Claim 9
Dependent Claim
21 words
The apparatus of claim 1, further characterized in that a. said movable platform constitutes an operating platform for an electric furnace.
References Cited (Backward Citations)
US1549141A
Cited
US3573337A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |