Cleaning and liquid contact with solids – Processes – Including use of vacuum – suction – or inert atmosphere
Reexamination Certificate
2007-01-09
2007-01-09
Barr, Michael (Department: 1746)
Cleaning and liquid contact with solids
Processes
Including use of vacuum, suction, or inert atmosphere
C134S022110, C134S022120, C015S330000
Reexamination Certificate
active
10991688
ABSTRACT:
A device for alternately applying pressure and vacuum to pipes in order to remove or prevent build-up of undesirable coatings inside the pipes is disclosed. The device includes a pressure and vacuum source connected to a plenum having a hose attached to the plenum at a proximal end and a control mechanism attached to the hose near a distal end. The control mechanism is operable to control the plenum to rapidly switch between variable amounts of vacuum and pressure to the hose. The plenum may also be controlled to supply neither vacuum nor pressure to the hose. The device may be used in a wide variety of settings, including industrial, commercial, marine hospitality industry, and household settings.
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Barr Michael
Chaudhry Saeed T.
Pietragallo Bosick & Gordon LLP
Towner, Esq. Alan G.
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