Dose control dispenser
US5725133A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 31, 1996 |
| Grant date | Mar 10, 1998 |
| Priority date | — |
| Expiry date | Jan 31, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA45D40/04
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A dispenser is provided that includes a container for storing a dispensable chemical product such as an underarm composition, an elevator mounted for axial movement within the container, a rotatable shaft attached to the elevator, a compartment within the container below the elevator and mechanisms for axially advancing and for reciprocating the elevator within the container. Each mechanism is actuated through a depressible button protruding from the housing. A flexible plastic band serving as a biasing spring is unitarily molded with the button as a plastic insert. The advancement mechanism includes a ratchet wheel with a plurality of teeth circumferentially surrounding the wheel and a pawl, attached to the plastic insert, for moving the teeth of the ratchet wheel. The reciprocating mechanism includes an angled ramp attached to an underside of the button. The ramp is positioned below the ratchet wheel for applying variable pressure thereto so as to raise the elevator but also to allow a slight retraction of the elevator after it has been advanced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.