Liquid dispensing pump arrangement with selective stroke restriction

摘要: A liquid-dispensing pump arrangement (10) permits positive setting into various full-stroke, stroke limited, and off positions by rotation of the dispensing head (40) thereof. The includes a reciprocating (24) having dip tube (26), body (24), depressible stem (28) which is supported in screw cap or other closure (20). pedestal (30) on has longitudinal detents (34) circumferential surface thereof, also helical ramp (38) thereon extending at least part way around stem. finger-depressible push-button atop radial outlet nozzle (46) depending skirt (48) overlaps pedestal. Fins vanes (50) are spaced apart engage resiliently flexible normally cutout to estblish each rotational position, but can be deflected manually turning dispenser so that latter easily rotated another desired position. In locked an upper prevents any downward travel head.