Valve joint and the process of its manufacture
AssigneeValois SAS
InventorPatrice Leone
Life of this patent
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Abstract
A valve joint of a dispensing valve of a fluid product dispensing device, said joint being intended to come into contact with a fluid product comprising an aerosol propellant of the HFC-134a or HFC-227 type, with or without alcohol, characterised in that said joint comprises a surface subjected to a surface treatment, said surface treatment being adapted to lower the friction coefficient of the joint so as to reduce the risks of the valve blocking and/or to create a barrier on the joint surface so as to reduce the level of extractables from said joint.
Claims14
A process for manufacturing a valve joint of a dispensing valve of a fluid product dispensing device, said joint being intended to come into contact with a fluid product comprising an aerosol propellant of the HFC-134a or HFC-227 type, with or without alcohol, characterised in that said process includes a joint surface treatment, said surface treatment reducing the friction coefficient of the joint so as to reduce the risks of the valve blocking and/or said surface treatment creating a barrier on the joint surface so as to reduce the level of extractables from said joint.
A valve joint of a dispensing valve of a fluid product dispensing device, aid joint being intended to come into contact with a fluid product comprising an aerosol propellant of the HFC-134a or HFC-227 type, with or without alcohol, characterised in that said joint includes a surface subjected to a surface treatment, said surface treatment being adapted to reduce the friction coefficient of the joint so as to reduce the risks of the valve blocking and/or to create a barrier on the joint surface so as to reduce the level of extractables from said joint.
Dependencies are inferred from the claim text.