Dispensing pump with improved sealing for application to liquid containers
AssigneeMICROSPRAY DELTA S.p.A.
InventorAndrea Marelli
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Abstract
A manually operable dispensing pump for application to liquid containers, in which the pump has a hollow stem which projects from a hole provided in a flange forming part of the pump, the stem having a profiled annular part which seals against a profiled seat on the flange when the pump is in its rest state, there projecting all about said flange seat a skirt within which the annular part of the stem slides and seals.
Claims5
A dispensing pump with improved sealing for application to liquid containers, comprising a cup-shaped body housing a translatable piston connected to a hollow stem, one end of which projects from the cup-shaped body via the hole in a flange mounted on the cup-shaped body, from the stem there projecting a profiled annular part which, when the pump is at rest, sealedly engages a profiled seat provided on the flange about its said hole, wherein from the flange there projects all about its said seat a hollow skirt the inner surface of which is cylindrical and against which there sealedly abuts the annular part projecting from the stem.
Dependencies are inferred from the claim text.