Manually-operated fluid dispenser and associated closure cap

In a manually-operable fluid dispenser for discharging an internally-stored fluid in response to user actuation,

• an elongated housing having an opening defined proximate a fluid discharge end of the dispenser;
• actuating means manually-operable for initiating discharge of a predetermined volume of stored fluid through said opening and including plunger means for user-effected manual movement from a first to a second position;
• and
• reciprocatable means movable longitudinally along said housing in response to operation of said actuating means for causing a discharge of fluid from said dispenser, said reciprocatable means comprising first and second members extending longitudinally along said housing and normally sufficiently closing said opening so as to prevent discharge of stored fluid through said opening but permitting predetermined bleeding of fluid from the dispenser interior through said opening, said first and second members being engageable with said plunger means such that, as said plunger means moves from said first to said second position, it concurrently drives said first and said second members in respectively opposite longitudinal directions to open said opening and force internally-stored fluid through said opening for discharge from the dispenser.

In a manually-operable fluid dispenser for discharging an internally-stored fluid in response to user actuation,

• an elongated housing having a fluid discharge opening defined proximate a forward end of the housing;
• a reservoir in said housing for containing a supply of stored fluid dischargeable through said opening;
• piston means movable longitudinally along said housing toward said housing forward end for driving stored fluid in said reservoir toward said discharge opening;
• actuator means manually advanceable into said housing by user manipulation;
• and
• dual action operating means for effecting a discharge of stored fluid through said opening in response to user-manipulated advance of said actuator means, said operating means comprising first and second members extending and movable longitudinally along said housing, said first member being releasably engageable with said discharge opening for normally sufficiently closing said opening so as to prevent discharge of stored fluid through said opening but permitting predetermined bleeding of fluid from said reservoir through said opening, and said second member being releasably coupled with said piston means for moving said piston means toward said housing forward end, and said first and second members being engaged with said actuator means so that user-manipulated advance of said actuator means directly and concurrently drives said first and second members through a longitudinal movement in respectively opposite directions along said housing to open said discharge opening by retraction of said first member from said engagement with said opening and to carry said piston means longitudinally toward said housing forward end whereby a volume of stored fluid in said reservoir is driven toward and through said opening and is thereby discharged from said dispenser in response to said user-manipulated advance of said actuator means.

In a manually-operable fluid dispenser for discharging an internally-stored fluid in response to user actuation,

• an elongated housing having a fluid discharge opening defined proximate a forward end of the housing;
• a reservoir in said housing for containing a supply of stored fluid dischargeable through said opening;
• actuator means on said housing for user manipulated radially-inwardly directed movement;
• dual action concurrently bidirectional operating means arranged for longitudinal movement along said housing and having a first part releasably engaging said discharge opening for normally sufficiently closing said opening so as to prevent discharge of stored fluid through said discharge opening but permitting predetermined bleeding of fluid from said reservoir through said discharge opening and a second part bounding an end of said reservoir remote from said housing forward end;
• and
• means mechanically connecting said actuator and operating means for converting said radially-inwardly directed movement of said actuator means to longitudinal movement of said operating means such that, in response to said user-manipulated actuator means movement, said operating means second part is directly driven toward said housing forward end and said operating means first part is concurrently directly driven away from said housing forward end to retract said first part from said engagement with said opening and thereby permit a discharge of stored fluid driven by said second part through said opening.