Cleaning and liquid contact with solids – Processes – Using sequentially applied treating agents
Reexamination Certificate
2009-03-13
2011-10-11
Barr, Michael (Department: 1711)
Cleaning and liquid contact with solids
Processes
Using sequentially applied treating agents
C134S022120, C134S022180, C134S029000, C134S034000
Reexamination Certificate
active
08034189
ABSTRACT:
Described and claimed are apparatuses and systems for surface cleaning comprising a pump and an applicator connected to the pump through which one or more cleaning agents can be applied to the surface at an operating pressure that is about 600 PSI or less and an operating flow rate that is about 1 gal/min or less.
REFERENCES:
patent: 6062486 (2000-05-01), Hill
patent: 7507299 (2009-03-01), Wadsworth et al.
patent: 2003/0056812 (2003-03-01), Baker et al.
Barr Michael
Bishop Joshua D.
Chaudhry Saeed T
Martin Michael B.
Nalco Company
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