Cleaning and liquid contact with solids – Processes – Hollow work – internal surface treatment
Reexamination Certificate
2008-05-09
2011-10-04
Barr, Michael (Department: 1711)
Cleaning and liquid contact with solids
Processes
Hollow work, internal surface treatment
C134S022120, C134S16600C, C134S171000
Reexamination Certificate
active
08029625
ABSTRACT:
Illustrated and described are a method and a device for the simultaneous cleaning of a plurality of pipe conduits or pipe conduit systems, particularly in each case having different pipe cross sections, wherein the cleaning takes place with a liquid cleaning medium, which is taken from a reservoir by a feed pump and fed to the systems to be cleaned. The invention makes provision for the cleaning medium stream to be fed to the first system to be cleaned and after leaving the first system to be cleaned, as cleaning medium stream, to be divided into two component streams, one component stream of which is used for cleaning the second or further system and the other component stream is again fed to the reservoir. In addition the second or further system to be cleaned is assigned a feed pump, whose speed and direction of rotation are variable for determining or regulating the cleaning method.
REFERENCES:
patent: 3448745 (1969-06-01), Seeley
patent: 6227215 (2001-05-01), Akazawa
patent: 2004/0187897 (2004-09-01), Kenowski et al.
patent: 2004/0216779 (2004-11-01), Targosz et al.
patent: 3809473 (1988-10-01), None
patent: 01/38218 (2001-05-01), None
Geissler Hanno
Peters Werner
Peters Wolfram
Barr Michael
Chaudhry Saeed T
SIG Technology AG
The Webb Law Firm
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