Cleaning and liquid contact with solids – Processes – Hollow work – internal surface treatment
Patent
1996-03-18
1997-04-01
Stinson, Frankie L.
Cleaning and liquid contact with solids
Processes
Hollow work, internal surface treatment
134186, 134169R, 134901, 15302, B08B 302
Patent
active
056161840
ABSTRACT:
An apparatus and a method for removing a liquid from a container having a bowl and a flange, the bowl holding the liquid and containing a hydrophilic ophthalmic lens, wherein there is provided a nozzle with a central face and a shoulder around the periphery of the face. The shoulder has a sealing means which is sized to fit on the flange of the container, where it forms a sealed volume above the container bowl, this volume including the volume of the bowl itself. The central face has through it at lease one fluid entrance passage and at least one fluid exit passage arranged so that the flow is distributed substantially symmetric about the center axis of the lens. The apparatus includes a lens retainer which resiliently urges the lens into engagement with the bowl so that when the purging fluid is introduced into the sealed volume, there is no migration of the lens. There is connected to the entrance passage a source of purging fluid that has a pressure and flow sufficient to remove substantially all the liquid through the exit passage.
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Calvin Olin W.
Duncan Gregory S.
Edwards Russell J.
Keene Darren S.
Schlagel Mark E.
Johnson & Johnson Vision Products Inc.
Stinson Frankie L.
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