A dispenser device without any air intake, such as an airless pump, for dispensing a fluid substance, the device comprising a dispensing chamber (14) of variable volume, which chamber is provided with an inlet (12) equipped with an inlet valve member (51, 53), and is provided with an outlet equipped
A dispenser device without any air intake, such as an airless pump, for dispensing a fluid substance, the device comprising a dispensing chamber (14) of variable volume, which chamber is provided with an inlet (12) equipped with an inlet valve member (51, 53), and is provided with an outlet equipped with an outlet valve member, the dispenser further comprising a piston (3) for causing the volume of the dispensing chamber (14) to vary, closure elements (51; 52; 55; 63) being provided to close off the dispensing chamber (14) in airtight manner, substantially at its inlet (12), prior to it being used for the first time, the device being characterized in that the closure elements are formed by the inlet valve member (51, 53).
대표청구항▼
[ What is claimed is:] [1.]1. A dispenser device without any air intake for dispensing a fluid substance, said device comprising a dispensing chamber (14) of variable volume, which chamber is provided with an inlet (12) equipped with an inlet valve member (51, 53), and is provided with an outlet equ
[ What is claimed is:] [1.]1. A dispenser device without any air intake for dispensing a fluid substance, said device comprising a dispensing chamber (14) of variable volume, which chamber is provided with an inlet (12) equipped with an inlet valve member (51, 53), and is provided with an outlet equipped with an outlet valve member, said dispenser further comprising a piston (3) for causing the volume of the dispensing chamber (14) to vary, closure means (51; 52; 55; 63) being provided to close off the dispensing chamber (14) in airtight manner, substantially at its inlet (12) prior to it being used for the first time, said device being characterized in that the closure means are formed by the inlet valve member (51, 53), wherein the piston (3) is mounted on an actuator rod (2) having an end (23, 24) that projects into the dispensing chamber, said end forming a pusher member (23) suitable, at the end of its stroke, for pushing the inlet valve member (51; 53) from its airtight position into its normal working position.
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이 특허에 인용된 특허 (11)
Meshberg Philip (2500 S. Ocean Blvd. Palm Beach FL 33480), Apparatus for dispensing products from a self-sealing dispenser.
Rebeyrolle Michel (Sainte-Mnhould FRX) Schneider Bernard (Sainte-Mnhould FRX), Process for the production and packaging of a bag-type dispenser, sub-assemblies and corresponding dispensers.
Dunning Walter B. (21199 Christopher Cir. Sonora CA 95370) Bundschuh Robert L. (6534 Miami Lakes Dr. Miami Lakes FL 33014), Pump sprayer having leak preventing seals and closures.
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