초록 ▼

A manually-operated dispenser for user-controlled discharge of an internally-stored fluid includes a variable length assembly normally driven to its maximum longitudinal extension for substantially closing a fluid discharge opening and for fluid-tightly closing a vent opening disposed at opposite en

A manually-operated dispenser for user-controlled discharge of an internally-stored fluid includes a variable length assembly normally driven to its maximum longitudinal extension for substantially closing a fluid discharge opening and for fluid-tightly closing a vent opening disposed at opposite ends of an elongated housing, the fluid discharge opening being normally sufficiently closed so as to prevent discharge of stored fluid through the discharge opening but permitting predetermined bleeding of fluid from the housing interior through the discharge opening, a piston bounding an end of an internal fluid reservoir and operatively movable along the housing for volumetrically reducing the reservoir and for driving stored fluid toward and through the discharge opening, and an actuator assembly manually operable by the user for causing controlled foreshortening of the variable length assembly whereby the fluid discharge and vent openings are concurrently opened permitting the forced discharge of a correspondingly controlled volume of stored fluid. An associated dispenser end closure cap incorporates a movable shuttle assembly for protectively receiving and substantially fluid-tightly enclosing an applicator integrally carried on the dispenser when the cap is operably emplaced on the dispenser for storage between fluid discharging uses thereof.

대표청구항 ▼

In a fluid dispenser for manually-effected operator-controlled discharge of a stored fluid: an elongated dispenser housing defining an interior space for storing a fluid dischargeable from the housing, said housing including a fluid discharge opening and a vent opening proximate opposite ends of the

In a fluid dispenser for manually-effected operator-controlled discharge of a stored fluid: an elongated dispenser housing defining an interior space for storing a fluid dischargeable from the housing, said housing including a fluid discharge opening and a vent opening proximate opposite ends of the housing; variable length means normally urged to a maximum longitudinal extension between and for concurrently closing said vent opening and sufficiently closing said fluid discharge opening so as to prevent discharge of stored fluid through said discharge opening but permitting predetermined bleeding of fluid from the housing interior space through the discharge opening; and fluid discharge actuating means operatively movable between a first and a second position for causing foreshortening of said variable length means relative to said maximum longitudinal extension to space said variable length means from and concurrently open said fluid discharge and vent openings whereby stored fluid is discharged from said dispenser through said fluid discharge opening and air enters the housing through said vent opening.