초록 ▼

A dispenser adapted to be connected to a container includes a first bore having an outlet for dispensing fluent material, a second bore containing a piston connected to a trigger for pumping the fluent material, and a third bore containing a vent opening and a piston for sealing the vent opening whe

A dispenser adapted to be connected to a container includes a first bore having an outlet for dispensing fluent material, a second bore containing a piston connected to a trigger for pumping the fluent material, and a third bore containing a vent opening and a piston for sealing the vent opening when the trigger is in the non-pumping position. A valve, spinner and springs in the first bore are unitarily formed from a plastic material.

대표청구항 ▼

A dispenser adapted to be attached to a container for holding a fluent material to be dispensed to the ambient comprising: (a) a housing adapted to be attached to the container; (b) a first outwardly opening bore, having an outer and inner end, located within said housing and having an outlet for di

A dispenser adapted to be attached to a container for holding a fluent material to be dispensed to the ambient comprising: (a) a housing adapted to be attached to the container; (b) a first outwardly opening bore, having an outer and inner end, located within said housing and having an outlet for dispensing the fluent material; (c) a second outwardly opening bore, having an outer and inner end, located within said housing and having a first piston shiftable within the second bore; (d) operating means for shifting the first piston within the second bore between a non-pumping and pumping position; (e) a third outwardly opening bore, having an outer and inner end, located within said housing and having venting means for permitting communication between the container and the ambient, wherein said first, second, and third bores each have a center axis, and said center axes of said bores are both offset and parallel relative to each other; (f) a second piston shiftable within said third bore for sealing the venting means when in a non-pumping position and allowing communication between the container and the ambient when said second piston moves from said non-pumping position toward said pumping position, said second piston being operably connected to said operating means.