Dispensing – With lock or fastening seal – Plural
Patent
1997-12-22
1999-05-04
Shaver, Kevin P.
Dispensing
With lock or fastening seal
Plural
22215313, 2223219, 222384, B67D 532
Patent
active
058993630
ABSTRACT:
Lotion pump has a stepped piston telescoping inside a stepped body to define a pumping chamber. The piston has in its wall inlet and discharge apertures, one above the other, to the pumping chamber. A stem integral with the actuator has a sealing head inside the piston which shuttles up and down between positions at which it covers one aperture or the other. Shuttling is implemented by lost-motion between the actuator spout/stem and piston. A spring urges the stem up at all times. The actuator can be turned to lock the head over the discharge aperture by nullifying the lost-motion. Further turning can lock the stem in lockdown position. One-directional turnback can liberate the head and unlock the lockdown. Detents control sequence of unlocking.
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Bliss, III Earnest E.
Kieler Alan W.
Owens-Illinois Closure Inc.
Shaver Kevin P.
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