Cleaning and liquid contact with solids – Processes – Using solid work treating agents
Reexamination Certificate
2006-02-28
2006-02-28
Barr, Michael (Department: 1746)
Cleaning and liquid contact with solids
Processes
Using solid work treating agents
C134S022120, C015S104050, C015S104090, C015S104120
Reexamination Certificate
active
07005012
ABSTRACT:
The device includes a spray system for spraying a fluid against the inside periphery of the tube to be cleaned, and two analogous brushing assemblies, each of which include brushing means and a propelling element which cooperates with the inside periphery of the tube. The device further includes means for moving axially the brushing assemblies towards and away from each other in alternation, which means include a chamber connected to a feed for feeding in fluid under pressure. The spray system includes a reservoir put under pressure by being connected to the chamber. A method of cleaning a tube, in which two brushing assemblies including brushing means are inserted into the tube and are moved towards and away from each other in alteration. A fluid, disposed in a reservoir cooperating with a support system on which the propelling elements are secured, is sprayed against the inside periphery of the tube.
REFERENCES:
patent: 4027349 (1977-06-01), Clavin
patent: 5113885 (1992-05-01), Ramsey
patent: 5813089 (1998-09-01), Nolan et al.
patent: 2 491 785 (1982-04-01), None
patent: 2491785 (1980-04-01), None
patent: 2 152 622 (1985-08-01), None
patent: 2 159 911 (1985-12-01), None
Bourrelly Bernard
Vadot Jacques
Barr Michael
Chaudhry Saeed
R. Marchal & Cie
Sutherland & Asbill & Brennan LLP
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