[특허]Pump dispensers

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B67D-005/06 B67D-005/52 B67D-005/60
출원번호	UP-0801055 (2007-05-08)
등록번호	US-7641077 (2010-02-11)
우선권정보	GB-0208806.0(2002-04-17)
발명자 / 주소	Law, Brian Robert Pritchett, David John Spencer, Jeffrey William
출원인 / 주소	Rieke Corporation
대리인 / 주소	Woodard, Emhardt, Moriarty, McNett & Henry LLP
인용정보	피인용 횟수 : 15 인용 특허 : 42

초록 ▼

Certain pump dispensers, for example foam dispensers, are specially adapted for inverted use. One feature especially useful in a foam dispenser having both an air cylinder and a liquid cylinder with respective pistons is an intake conduit arrangement to increase the clearance of liquid from the cont

Certain pump dispensers, for example foam dispensers, are specially adapted for inverted use. One feature especially useful in a foam dispenser having both an air cylinder and a liquid cylinder with respective pistons is an intake conduit arrangement to increase the clearance of liquid from the container. An intermediate shell fits over the upright liquid cylinder body and carries an inlet valve positively urged upward to the closed position to prevent leaking. A conduit shell fits over the intermediate shell and creates an intake conduit extending down the side of the liquid cylinder to an intake opening lower down the pump body.

대표청구항 ▼

The invention claimed is: 1. A pump dispenser for use with an inverted container having a downwardly-directed neck, the dispenser including a pump body to be mounted recessed into the container neck projecting into the container interior, and a plunger which is reciprocable axially relative to the

The invention claimed is: 1. A pump dispenser for use with an inverted container having a downwardly-directed neck, the dispenser including a pump body to be mounted recessed into the container neck projecting into the container interior, and a plunger which is reciprocable axially relative to the pump body in a pumping stroke and has a downwardly-projecting actuating portion; the pump body including a cylinder body defining a liquid chamber and having at its top an inlet opening for admitting liquid into the liquid chamber, and the plunger carrying a piston which is reciprocable in the cylinder body to pump liquid in use from the liquid chamber into a discharge passage and to a discharge outlet by way of a discharge valve; characterized by an intake conduit arrangement connected to the cylinder body and defining an intake conduit extending down outside the cylindrical body to connect between the inlet opening at the top of the cylindrical body and an intake opening lower down, the intake opening communicating between the intake conduit and the container interior whereby in use liquid can be drawn up to the inlet opening and into the liquid chamber from an intake level lower than the inlet opening. 2. A pump dispenser according to claim 1 which is a foam dispenser comprising, in addition to the liquid pump constituted by said cylinder body and piston, an air pump constituted by an air cylinder also comprised in the pump body and an air piston operated by the plunger, an air chamber being defined between the air piston and the air cylinder and an air discharge passage leading from the air chamber to said discharge outlet, the liquid discharge passage and air discharge passage meeting on the way to the discharge outlet and the resulting combined discharge passage containing a permeable foam-regulating element. 3. A pump dispenser according to claim 2 in which the intake conduit arrangement comprises a conduit shell that fits onto the cylinder body, defining the intake conduit by enclosing a path between itself and the cylinder body. 4. A pump dispenser according to claim 3 in which the conduit shell is tubular, with a closure at its top end enclosing a top part of the intake conduit. 5. A pump dispenser according to claim 4 in which the inward surface of the conduit shell has a circumferentially-localised axially-extending groove recess between fitting wall portions, defining a channel clearance providing the intake conduit. 6. A pump dispenser according to claim 3 in which the lower end of the conduit shell flares outwardly at a spacing from the pump body, an intake chamber, preferably annular, is defined between the flared lower end and the pump body, and the intake opening is into the intake chamber. 7. A pump dispenser according to claim 2 in which the intake opening is at least as low as the seal engagement of the piston with the cylinder body, with the piston at its lowermost operational position. 8. A pump dispenser according to claim 2 in which the intake conduit arrangement comprises an intermediate shell which fits onto the cylinder body between the cylinder body and the conduit shell. 9. A pump dispenser according to claim 8 in which the inner shell has a top closure portion having one or more intermediate inlet openings enabling communication between the intake conduit and the cylinder body's inlet opening, the inner shell carrying an inlet valve member acting on the one or more intermediate inlet openings. 10. A pump dispenser according to claim 9 in which the inlet valve member is resiliently urged to the closed position. 11. A pump dispenser according to claim 2 in which the liquid cylinder and air cylinder are respectively upper and lower coaxial portions of an integrated cylinder unit comprised in the pump body, the liquid cylinder having a smaller bore than the air cylinder. 12. A pump dispenser according to claim 11 in which the wall of the air cylinder has a downwardly re-entrant top portion extending around the base of the liquid cylinder to form an upwardly-open trough, and a connector of the intake conduit arrangement is seated in the trough. 13. A pump dispenser according to claim 12 in which the lower end of the intake conduit shell makes a sealing engagement around the trough excepting the intake opening which is defined through the lower end of the intake conduit shell. 14. A pump dispenser according to claim 2 in which the plunger has an outer wall enclosing an interior cavity and having an air intake vent, separate from the discharge passage, for entry of air to the air cylinder via the interior cavity of the plunger and an air inlet valve, and wherein the plunger outer wall has an air vent riser conduit whose entry is the external opening of the air intake vent and which extends up in the plunger to an exit opening raised from the bottom of the interior cavity. 15. A pump dispenser according to claim 2 in which the air piston engages the air cylinder at an air piston seal having a first, upwardly-directed sealing lip and a second, downwardly-directed sealing lip below the first sealing lip to stop liquid from getting into the air cylinder. 16. A pump dispenser according to claim 1 in which the discharge nozzle of the pump has a closure valve comprising a wall of a resiliently flexible material having one or more slits providing a discharge opening which is closed in a rest condition of the wall and opens when the pressure of product from the pump causes the wall to bulge outwardly.

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이 특허에 인용된 특허 (42) 인용/피인용 타임라인 분석

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Sayers,Richard C.; Ciavarella,Nick E.; Rosenkranz,Mark E.; Willis,Daniel M., Dip tube for use with a container pump.
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Ophardt Heiner (3931 Vineyard Cres Vineland ; Ontario CAX L0R 2C0), Disposable plastic liquid pump.
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Ophardt Heiner (3931 Vineyard Crescent Vineland ; Ontario CAX L0R 2C0 ), Disposable plastic liquid pump.
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Ophardt Heiner (Vineland CAX), Disposable plastic liquid pump.
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Beun Jacobus H. (Maassluis NLX) van Duijn Jan (Vlaardingen NLX), Disposable pump for dispensing small metered amounts of liquid from a container and a control unit for operating said pu.
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Lewis, Richard P.; Mahaffey, Cleary E., Dosing pump for liquid dispensers.
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Powling, David J., Dosing pump for liquid dispensers.
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Gonzalez Fernandez Xavier,ESX ; Pares Montaner Pedro,ESX ; Ribera Turro Victor,ESX, Fluid pump dispenser.
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Sayers,Richard C., Foam producing pump with anti-drip feature.
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Moretti Remo (Cremona ITX), Hand pump for dispensing bottles with shutoff arrangement for preventing spillage therefrom.
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Tada Tetsuya (Tokyo JPX), Head depression type dispenser.
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Maerte Leo (Sipplingen DEX) Wolter Michael (Landschlacht CHX), Invention Bump for liquid media.
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Maerte Leo (Sipplingen DEX) Wolter Michael (Landschlacht CHX), Invertable pump for liquid media.
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Kasting,Thomas P., Inverted dispensing pump with vent baffle.
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Nozawa Takamitsu (Tokyo JPX), Invertible miniature atomizer of manual type.
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Balderrama Mark A. (Colton CA), Invertible pump sprayer having spiral vent path.
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Corsette Douglas F. (Los Angeles CA), Liquid Dispenser.
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Banks Stewart (Brantford CAX), Liquid dispenser for dispensing foam.
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Banks Stewart,CAX, Liquid dispenser for dispensing foam.
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Heiner Ophardt CA; Ali Mirbach, Liquid dispenser for dispensing foam.
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Ophardt, Heiner; Mirbach, Ali, Liquid dispenser for dispensing foam.
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Gillingham James R. ; Li Tanny ; Siegel Kenneth D., Liquid dispensing pump having water seal.
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Ophardt Heiner (Vineland CAX), Liquid soap dispenser for simplified replacement of soap reservoir.
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Ophardt Heiner (Vineland CAX), Liquid soap dispenser for simplified replacement of soap reservoir.
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Cassia Antonio M. (Milan ITX), Liquid soap dispensing system.
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Skorka Thomas (Radolfzell DEX), Manually operated dual invertible pump.
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Foster Donald D. (St. Charles MO) Nelson Philip L. (Ellisville MO), Manually operated reciprocating liquid pump.
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Ophardt Heiner (Vineland CAX), Method of preparing replaceable liquid soap reservoir.
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Ophardt, Heiner, Nozzle for fluid dispenser.
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Ophardt, Heiner, Pivoting piston head for pump.
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Bron ; Dan, Pump for variable dosing.
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Lewis, Richard P.; Mahaffey, Cleary E.; Mayberry, Pamela J.; Tramontina, Paul F.; Powling, David J.; Bennett, Mark A.; Bachtel, Randall M., Self-contained viscous liquid dispenser.
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Lewis, Richard P.; Mahaffey, Cleary E.; Mayberry, Pamela J.; Tramontina, Paul F.; Powling, David J.; Bennett, Mark A.; Bachtel, Randall M., Self-contained viscous liquid dispenser.
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Lewis, Richard P.; Mahaffey, Cleary E.; Mayberry, Pamela J.; Tramontina, Paul F.; Powling, David J.; Bennett, Mark A.; Bachtel, Randall M., Self-contained viscous liquid dispenser.
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Lewis, Richard P.; Mahaffey, Cleary E.; Mayberry, Pamela J.; Tramontina, Paul F.; Powling, David J.; Bennett, Mark A.; Bachtel, Randall M., Self-contained viscous liquid dispenser.
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Herman Ophardt DE; Heiner Ophardt CA; Ali Mirbach DE, Unitary one-way valve for fluid dispenser.
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Grothoff Hans (Pulverstrasse 35 Dortmund DEX), Upright/inverted pump sprayer.
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이 특허를 인용한 특허 (15) 인용/피인용 타임라인 분석

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Quinlan, Robert L.; Rosenkranz, Mark E.; Reynolds, Aaron R., Bifurcated stem foam pump.
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Ray, Eugene W., High velocity foam pump.
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Harris, Donald R.; Quinlan, Robert L.; McNulty, John J., Pumps with angled outlets, refill units and dispensers having angled outlets.
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Harris, Donald R.; Marshall, Aaron D.; Ciavarella, Nick E., Vented refill units and dispensers having vented refill units.
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Harris, Donald R.; Marshall, Aaron D.; Ciavarella, Nick E., Vented refill units and dispensers having vented refill units.
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