Picking-up device for photographic film sheets
AssigneeMinnesota Mining and Manufacturing Company
InventorsDario Ballerini, Marco Notini
Life of this patent
Estimating the term…
Abstract
Photographic film sheet picking-up device in a feeding apparatus for feeding such sheets from a station containing at least one sheet to a following station, such as a transport or processing station where the film sheets are to be processed one at a time, wherein such sheet picking-up device comprises rubber suction cups containing at least one antistatic compound selected within the group consisting of a) a metal salt selected within the group consisting of perfluoroalkylsulfonylmethide compounds and perfluoroalkylsulfonylimide compounds, b) a perfluoroalkyl(ene)polyoxyethylene non-ionic type surfactant, c) a modified polyoxyethylenepolysiloxane type surfactant, and a mixture of such compounds.
Claims12
A photographic film sheet picking-up device in an apparatus for feeding such film sheets from a station containing at least one sheet to a following station where the film sheets are to be processed one at a time, wherein such film sheet picking-up device comprises suction cups made of rubber containing at least one antistatic compound selected within the group consisting of a) a metal salt selected within the group which consists of perfluoroalkylsulfonylmethide compounds and perfluoroalkylsulfonylimide compounds, b) a non-ionic perfluoroalkyl(ene)polyoxy-ethylene type surfactant, c) a modified polyoxyethylenepoly-siloxane type surfactant, and a mixture of such compounds.
Dependencies are inferred from the claim text.