The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 04, 1999
Filed:
Dec. 22, 1997
Earnest E Bliss, III, Perrysburg, OH (US);
Alan W Kieler, Sarasota, FL (US);
Owens-Illinois Closure Inc., Toledo, OH (US);
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.