EP0484616A1 - Handbetätigte Pumpe für Fluide - Google Patents

Handbetätigte Pumpe für Fluide Download PDF

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Publication number
EP0484616A1
EP0484616A1 EP91105908A EP91105908A EP0484616A1 EP 0484616 A1 EP0484616 A1 EP 0484616A1 EP 91105908 A EP91105908 A EP 91105908A EP 91105908 A EP91105908 A EP 91105908A EP 0484616 A1 EP0484616 A1 EP 0484616A1
Authority
EP
European Patent Office
Prior art keywords
pump device
gasket
delivery
ball
valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP91105908A
Other languages
English (en)
French (fr)
Other versions
EP0484616B1 (de
Inventor
Giancarlo Giuffredi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Coster Technologie Speciali SpA
Original Assignee
Coster Technologie Speciali SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Coster Technologie Speciali SpA filed Critical Coster Technologie Speciali SpA
Publication of EP0484616A1 publication Critical patent/EP0484616A1/de
Application granted granted Critical
Publication of EP0484616B1 publication Critical patent/EP0484616B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1004—Piston pumps comprising a movable cylinder and a stationary piston
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1009—Piston pumps actuated by a lever
    • B05B11/1011—Piston pumps actuated by a lever without substantial movement of the nozzle in the direction of the pressure stroke
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1095—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle with movable suction side

Definitions

  • This invention relates to a manually operated pump device for dispensing fluids from containers, particularly of the portable type for connection to said containers, for example by threaded ring nuts or capsules.
  • Fluid dispensing pumps consisting substantially of a cylinder, a mobile piston operationally connected to a trigger lever, delivery and suction valves, elastic return means and a delivery channel.
  • the unidirectional delivery valves provided in known pumps consist of shutoff valves of conventional type housed in convenient seats provided within the device and operated by gravity or by return springs.
  • the object of the invention is to provide a manually operated pump device for dispensing fluids which is composed of a small number of relatively simple components which can be obtained by moulding plastics material, and are easily assembled.
  • the pump according to the invention comprises a mobile member for pumping the fluid to be dispensed, said mobile member (9) being operationally connected to a trigger lever and cooperating with a fixed guide member, a ball suction valve, elastic return means and a delivery head (6), and is characterised by comprising a delivery valve comprising a gasket sealing against said mobile member and fixed member and acting as a counteracting member for said elastic return means.
  • the first embodiment of the pump device shown in Figure 1 comprises a hollow cylindrical handgrip 1 connected lowerly to a rotatable screw cap 3, a trigger lever 2, a delivery channel 4 and a delivery head 6.
  • the lever 2 is pivoted on supports 7 provided on the inner sides of a pair of parallel spaced-apart walls 7A connected to the handgrip 1.
  • Said trigger lever also comprises two arms 32 which pass through suitable apertures provided in the cylindrical wall of the handgrip 1 to cooperate with a collar 8 of a mobile cylinder 9 slidingly contained within said handgrip.
  • Said cylinder 9 slides along the walls of a fixed piston 10 and contracts lowerly into bottle-neck shape with a frusto-conical part 13 which when the trigger lever 2 is not operated rests on the lower collar of a ring 11.
  • the end 12A of the neck engages with a dip-tube 12 which dips into the fluid to be dispensed.
  • a suction valve 14 Within the chamber 22 defined by the cylinder 9 and piston 10 there are provided a suction valve 14, a gasket and a loading or return spring 17.
  • the suction valve 14 is a conventional ball valve which when in its rest position rests on the frusto-conical part 13 of the cylinder 9, its travel being limited by the turns of the spring 17.
  • the gasket 16 is substantially of cap shape comprising a diverging toroidal band 16A in contact with the inner lateral walls of the cylinder 9, a central step 16B externally in contact with the end of the piston 10, an upper step 16C in contact internally with the spring 17 and externally with ribs 24 provided radially on the inner wall of the piston 10, and a terminal conical hollow lip 34 which is thinner than the other portions and is cut radially along a longitudinal part to form a series of petals which when the device is not operated but is in the suction stage adhere to each other to seal the exit passage from the chamber 22.
  • the loading spring 17 acts upperly against the gasket step 16C and lowerly against suitable radial ribs 18 provided on the inside of the cylinder 9.
  • the delivery head 6 is snap-fitted to an annular portion 26 at the end of the delivery channel 4 of variable inner section, and according to its position it either connects said channel 4, via a groove 32 and a fixed channel 40 in said annular portion 26, to one of the different-shaped orifices 31, 30 and 29, or prevents the fluid from leaving.
  • Figure 2 shows a second embodiment of the pump device.
  • the cap-shaped gasket 16 terminates with a step 16C with a central hole, on the outside of which there rests a ball 42 restricted in its travel by a step provided on the ribs 43 disposed radially on the inner wall of the piston 10.
  • the operation of the device shown in Figure 1 is as follows. On operating the trigger lever 2 the arms 32 engage under the collar 8 of the cylinder 9 to raise it and produce fluid emission from the delivery head 6 following mutual separation of the petals of the upper part 34 of the gasket 16.
  • the ball 14 rests by gravity on the conical contraction 13 of the cylinder to hermetically close the passage towards to dip-tube 12.
  • the cylinder 9 begins to rise and as its upward travel continues it compresses the fluid in the chamber 22 which, on reaching a certain pressure, diverges the petals of the part 34 of the gasket 16, to then flow into the delivery channel 4 and from here through the delivery head 6 to the outside.
  • the operation of the second embodiment of the device differs from the first only in terms of the delivery stage, in that on reaching a given pressure the fluid raises the ball 42, to then flow into the delivery channel 4.
  • the ball 42 On completion of delivery the ball 42 returns to rest by gravity on the step 16C to form a seal.
  • the travel of the ball 42 is limited upperly by the step 44 provided on the ribs 43.

Landscapes

  • Reciprocating Pumps (AREA)
  • Closures For Containers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Nozzles (AREA)
EP91105908A 1990-11-06 1991-04-13 Handbetätigte Pumpe für Fluide Expired - Lifetime EP0484616B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT22062U IT220413Z2 (it) 1990-11-06 1990-11-06 Dispositivo a pompa per dosare o dispensare fluidi azionambile a mano.
IT2206290U 1990-11-06

Publications (2)

Publication Number Publication Date
EP0484616A1 true EP0484616A1 (de) 1992-05-13
EP0484616B1 EP0484616B1 (de) 1994-08-03

Family

ID=11190910

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91105908A Expired - Lifetime EP0484616B1 (de) 1990-11-06 1991-04-13 Handbetätigte Pumpe für Fluide

Country Status (4)

Country Link
EP (1) EP0484616B1 (de)
DE (1) DE69103248T2 (de)
ES (1) ES2058973T3 (de)
IT (1) IT220413Z2 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995003132A1 (de) * 1993-07-22 1995-02-02 Frimec Fritz Meckenstock Gmbh + Co. Handhebelbetätigte pumpe
WO2022103355A1 (en) * 2020-11-14 2022-05-19 Şekeroğlu Ki̇mya Ve Plasti̇k Sanayi̇ Ve Ti̇caret A. Ş. One-way valve for liquid sprayer head

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9405891D0 (en) * 1994-03-24 1994-05-11 English Glass Company The Limi Dispenser pumps

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0128585A2 (de) * 1983-06-13 1984-12-19 AFA Products, Inc. Handbetätigter Flüssigkeitszerstäuber
EP0302994A2 (de) * 1987-08-11 1989-02-15 Atsushi Tada Handbetätigte Abgabevorrichtung vom Drückertyp, ihr Montageverfahren und ein Drallkörper für die Benutzung in dieser Vorrichtung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0128585A2 (de) * 1983-06-13 1984-12-19 AFA Products, Inc. Handbetätigter Flüssigkeitszerstäuber
EP0302994A2 (de) * 1987-08-11 1989-02-15 Atsushi Tada Handbetätigte Abgabevorrichtung vom Drückertyp, ihr Montageverfahren und ein Drallkörper für die Benutzung in dieser Vorrichtung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995003132A1 (de) * 1993-07-22 1995-02-02 Frimec Fritz Meckenstock Gmbh + Co. Handhebelbetätigte pumpe
WO2022103355A1 (en) * 2020-11-14 2022-05-19 Şekeroğlu Ki̇mya Ve Plasti̇k Sanayi̇ Ve Ti̇caret A. Ş. One-way valve for liquid sprayer head

Also Published As

Publication number Publication date
IT9022062V0 (it) 1990-11-06
IT220413Z2 (it) 1993-09-21
ES2058973T3 (es) 1994-11-01
IT9022062U1 (it) 1992-05-06
DE69103248D1 (de) 1994-09-08
DE69103248T2 (de) 1994-11-24
EP0484616B1 (de) 1994-08-03

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