Rotary bearing arrangement with a sealing arrangement having a chamber with a disinfectant barrier medium therein
View Patent ↗A method of operating a rotary beverage bottle or container filling or handling machine with a bearing with a cleaning arrangement in an aseptic clean room in a beverage bottling or container filling plant. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.
1. A sealing arrangement comprising a plurality of pairs of first and second annular seals, with a rotatable bearing device, said rotatable bearing device comprising a stationary part, a rotatable part, and a plurality of annular spaces disposed about said rotatable part, wherein at least one of said pairs of first and second annular seals is disposed between every two of said annular spaces, and wherein, for each of said pairs of first and second annular seals:
said stationary part comprises a first annular recess, a second annular recess, and a third annular recess, each having first and second side walls;
said stationary part comprises a first portion disposed between said first and second annular recesses, which first portion forms said second side wall of said first annular recess and said first side wall of said second annular recess;
said stationary part comprises a second portion disposed between said second and third annular recesses, which second portion forms said second side wall of said second annular recess and said first side wall of said third annular recess;
each of said first and second portions have an end face that is opposed to an outer surface of said rotatable part;
said first annular seal is disposed in said first annular recess, and is configured to contact the outer surface of said rotatable part;
said second annular seal is disposed in said third annular recess and is configured to contact the outer surface of said rotatable part; and
said second annular recess and the outer surface of said rotatable part define a chamber disposed between said annular seals and configured to receive a disinfectant barrier medium therein.
2. The sealing arrangement according to claim 1 , wherein each of said annular seals has an essentially equivalent cross-sectional width and cross-sectional height.
3. The sealing arrangement according to claim 1 , in combination with a reservoir of disinfectant barrier medium, wherein said reservoir is operatively connected to each chamber and configured to conduct disinfectant barrier medium through each chamber at lower-than-ambient pressure.
4. The sealing arrangement according to claim 1 , wherein:
each chamber is configured to receive either a liquid or a gaseous disinfectant barrier medium comprising hydrogen peroxide;
each chamber comprises at least one barrier medium inlet;
each chamber comprises at least one barrier medium outlet;
said at least one barrier medium inlet and said at least one barrier medium outlet together being configured to permit circulation of barrier medium through their chamber; and
the rotary bearing arrangement comprises at least one of: a pressure monitor to monitor the pressure in each chamber, and a level monitor to monitor the concentration of hydrogen peroxide in the disinfectant barrier medium.
5. The sealing arrangement according to claim 1 , wherein each chamber is the only portion of said sealing arrangement or said rotatable bearing device configured to receive the disinfectant barrier medium therein.
6. The sealing arrangement according to claim 1 , disposed in an aseptic beverage container handling machine, wherein said rotatable part is connected to a rotary base plate of said aseptic beverage container handling machine, and each chamber is configured to be filled with disinfectant barrier medium during handling of containers by said aseptic beverage container handling machine.