Valve device, a unit for unloading loose materials from a...

Details Valve device, a unit for unloading loose materials from a... Valve device, a unit for unloading loose materials from a...

2007-05-08

2007-05-08

Lee, Kevin (Department: 3753)

Fluid handling

Processes

Cleaning, repairing, or assembling

C137S015050, C137S240000, C137S553000

Reexamination Certificate

active

11061823

ABSTRACT:
A valve device comprises a pipe, a first closing element, mobile between a first position in which it leaves the pipe open and a second position in which it seals the pipe closed, a second closing element, mobile between a first position in which it leaves the pipe open and a second position in which it seals the pipe closed; the first and the second closing elements, in their respective second closed positions, form a chamber and the valve device also comprises an orbital head for supporting at least one nozzle which dispenses a washing fluid, for cleaning the chamber.

REFERENCES:
patent: 4020869 (1977-05-01), Davis et al.
patent: 4458706 (1984-07-01), Scholes
patent: 4846212 (1989-07-01), Scobie et al.
patent: 4846225 (1989-07-01), Scobie et al.
patent: 5609183 (1997-03-01), Parker
patent: 2005/0268951 (2005-12-01), Pieri
patent: 196 17 857 (1997-07-01), None
patent: 100 24 950 (2001-07-01), None
patent: 2 064 730 (1981-06-01), None

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