Two-stroke fluid dispenser with actuator-operated valve for controlling fluid flow between internal fluid chamber
US5169039A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 1991 |
| Grant date | Dec 8, 1992 |
| Priority date | — |
| Expiry date | Apr 26, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA45D34/042
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A hand-held, manually-actuated dispenser for selective discharge of a stored fluid includes a discharge outlet defined in an elongated housing and a reciprocatable elongated member normally maintained in a first position closing the discharge opening for preventing a release of contained fluid. Also defined in the housing is a first chamber for containing fluid for discharge from the discharge opening, a second chamber or reservoir for storing a supply of the contained fluid, and a passage between the first and second chambers for enabling contained fluid flow therebetween. The elongated member is movable in a first direction from the first to a second position in which the discharge opening is opened for enabling a release of contained fluid from the first chamber and in a second direction from the second to the first position to refill the first chamber from the second and thereby complete a two-stroke fluid-discharging operation of the dispenser. A valve member movably associated with the reciprocatable member closes and opens the passage as the member respectively moves in the first and second directions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.