Device for opening or closing an opening, in particular a...

Details Device for opening or closing an opening, in particular a... Device for opening or closing an opening, in particular a...

2007-01-02

2007-01-02

Jacyna, J. Casimer (Department: 3751)

Valves and valve actuation

Mechanical movement actuator

Plural dissimilar mechanical movements

C222S185100, C220S817000

Reexamination Certificate

active

10869473

ABSTRACT:
A device for closing or opening an opening, in particular a filling or bottom opening (11) of a material bunker (12) arranged above the furnace throat of a blast furnace, including a tilting disk (10) connectable to a drive. The tilting disk (10) is articulated to two swivel arms (15, 16) pivotably mounted about two swivel axes (13, 14) extending parallel to each other, and to be more precise, in such a manner that the edge areas of the tilting disk (10) situated on a perpendicular to the swivel axes (13, 14) of the two swivel arms (15, 16), upon a movement of these arms, move from the closed into the opened position, and vice versa, along oppositely directed arc paths (23, 24).

REFERENCES:
patent: 4820105 (1989-04-01), Legille et al.
patent: 5797585 (1998-08-01), Auvity
patent: 3834969 (1990-04-01), None
patent: 10339582 (1998-12-01), None
European Search Rep. for App. No. 04 01 2112, Aug. 24, 2005.
European Search Rep. for App. No. 01 01 2112, Aug. 24, 2005.

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