초록 ▼

A liquid sprayer is provided. This liquid sprayer includes a bottle having an opening and a sprayer housing attached to the bottle. This sprayer housing includes an electrical motor, a voltage source for powering the electrical motor, a pump driven by the motor, a switch for completing an electrical

A liquid sprayer is provided. This liquid sprayer includes a bottle having an opening and a sprayer housing attached to the bottle. This sprayer housing includes an electrical motor, a voltage source for powering the electrical motor, a pump driven by the motor, a switch for completing an electrical circuit, a nozzle mechanism attached to the sprayer housing for spraying a liquid. The liquid sprayer also includes a deformable “pinched tube” mechanism which prevents liquid from flowing through the nozzle when the sprayer is not being used. The sprayer housing also includes a trigger movably connected to the sprayer housing for closing the switch, translating the piston and creating a leak-tight seal by squeezing the “pinched tube”.

대표청구항 ▼

1. A trigger-activated mechanism for dispensing a fluid, comprising:a) a fluid pump mechanism having an inlet for receiving a fluid and an outlet for expressing said fluid;b) a dip tube extending from said inlet and providing communication for said fluid between said pump mechanism and a reservoir f

1. A trigger-activated mechanism for dispensing a fluid, comprising:a) a fluid pump mechanism having an inlet for receiving a fluid and an outlet for expressing said fluid;b) a dip tube extending from said inlet and providing communication for said fluid between said pump mechanism and a reservoir for said fluid;c) a discharge tube extending from said outlet, said discharge tube having at least one resilient, collapsible portion, said discharge tube providing communication for said fluid between said pump mechanism and a discharge outlet from said trigger-activated mechanism;d) a pole member fixedly positioned between said pump mechanism outlet and said discharge outlet in proximity to said resilient collapsible segment of said discharge tube wherein said pole member serves as a mandrel and a portion of said resilient, collapsible segment of said discharge tube is loaned around said pole member; ande) an actuating trigger mounted in communication with said trigger-activated mechanism and having a distal side for compressive engagement by a user of said trigger-activated mechanism and a proximal side facing said pole member and said discharge tube, said proximal side comprising means for collapsing said resilient collapsible segment of said discharge tube against said pole member such that a fluid cannot flow in said discharge tube when said trigger is not compressively engaged and such that a fluid can flow in said discharge tube when said trigger is compressively engaged. 2. A mechanism according to claim 1 wherein the proximal side of said trigger comprises one or more protuberances extending outwardly therefrom which compressively engage and collapse said resilient, collapsible segment of said discharge tube against said pole member when said trigger is not being compressively engaged. 3. A mechanism according to claim 1 wherein said discharge outlet is a spray nozzle. 4. A mechanism according to claim 1 wherein said fluid pump mechanism comprises a switch engageable by said trigger, a portable voltage source, a gear-pump driven by an electrical motor powered by said portable voltage source when said switch is closed, whereby said electrical motor, said portable voltage source and said switch form an electrical circuit. 5. A mechanism according to claim 1 wherein said trigger-activated mechanism is removably attached to said reservoir filled with a liquid. 6. A mechanism according to claim 5 wherein said liquid is a chemically aggressive liquid composition. 7. A mechanism according to claim 6, wherein said fluid pump mechanism comprises a switch engageable by said trigger, a portable voltage source, a gear-pump driven by an electrical motor powered by said portable voltage source when said switch is closed, whereby said electrical motor, said portable voltage source and said switch form an electrical circuit. 8. A trigger-vented mechanism for venting a container of a trigger-activated mechanism used for dispensing a fluid, comprising:a. a housing having one opening and comprising a fluid pump mechanism having an inlet in fluid communication with a container filled with a fluid and an outlet in fluid communication with a discharge outlet for dispensing said fluid,b. a vent tube extending from said container to said opening and providing air communication between said container and said opening, said vent tube having at least one resilient, collapsible portion;c. a pole member fixedly positioned between said container and said opening in proximity to said resilient collapsible segment of said vent tube; andd. an actuating trigger mounted in communication with said trigger-activated mechanism and having a distal side for compressive engagement by a user of said trigger-activated mechanism and a proximal side facing said pole member and said vent tube, said proximal side comprising means for collapsing said resilient collapsible segment of said vent tube against said pole member such that a fluid cannot flow in said vent tube when said trigger is not compressively engaged and such that a fluid can flow in said vent tube when said trigger is compressively engaged. 9. The trigger-vented mechanism of claim 8 wherein said pole member serves as a mandrel and a portion of said resilient, collapsible segment of said vent tube is looped around said pole member. 10. The trigger-vented mechanism of claim 8 wherein the proximal side of said trigger comprises one or more protuberances extending outwardly therefrom which compressively engage and collapse said resilient, collapsible segment of said vent tube against said pole member when said trigger is not being compressively engaged. 11. The trigger-vented mechanism of claim 8 wherein said discharge outlet is a spray nozzle. 12. The trigger-vented mechanism of claim 8 wherein said fluid pump mechanism comprises a switch engageable by said trigger, a portable voltage source, a gear-pump driven by an electrical motor powered by said portable voltage source when said switch is closed, whereby said electrical motor, said portable voltage source and said switch form an electrical circuit. 13. A trigger-vented/activated mechanism for dispensing a fluid and for venting a container of a trigger-activated mechanism used for dispensing a fluid, comprising:a) a housing having one opening and comprising a fluid pump mechanism having an inlet for receiving a fluid from a fluid filled container and an outlet in fluid communication with a discharge outlet for expressing said fluid;b) a dip tube extending from said inlet and providing communication for said fluid between said pump mechanism and a reservoir for said fluid;c) a discharge tube extending from said outlet, said discharge tube having at least one resilient, collapsible portion, said discharge tube providing communication for said fluid between said pump mechanism and a discharge outlet from said trigger-vented/activated mechanismd) a vent tube extending from said container to said opening and providing air communication between said container and said opening, said discharge tube having at least one resilient, collapsible portion;e) a pole member fixedly positioned between said pump mechanism outlet and said discharge outlet in proximity to said resilient collapsible segment of said discharge tube and said resilient collapsible segment of said vent tube; andf) an actuating trigger mounted in communication with said trigger-vented/activated mechanism and having a distal side for compressive engagement by a user of said trigger-vented/activated mechanism and a proximal side facing said pole member, said discharge tube and said vent tube, said proximal side comprising means for collapsing said resilient collapsible segment of both said discharge and vent tube against said pole member such that a fluid cannot flow in said discharge and vent tube when said trigger is not compressively engaged and such that a fluid can flow in said discharge and vent tube when said trigger is compressively engaged. 14. The trigger-vented mechanism of claim 13 wherein said pole member serves as a mandrel and a portion of said resilient, collapsible segment of both said discharge and vent tube is looped around said pole member. 15. The trigger-vented mechanism of claim 13 wherein the proximal side of said trigger comprises one or more protuberances extending outwardly therefrom which compressively engage and collapse said resilient, collapsible segment of both said discharge and vent tube against said pole member when said trigger is not being compressively engaged. 16. The trigger-vented mechanism of claim 13 wherein said discharge outlet is a spray nozzle. 17. The trigger-vented mechanism of claim 13, wherein said fluid pump mechanism comprises a switch engageable by said trigger, a portable voltage source, a gear-pump driven by an electrical motor powered by said portable voltage source when said switch is closed, whereby said electrical motor, said portable voltage source and said swit ch form an electrical circuit.