EP0484616B1 - Manually operated pump device for dispensing fluids - Google Patents

Manually operated pump device for dispensing fluids Download PDF

Info

Publication number
EP0484616B1
EP0484616B1 EP91105908A EP91105908A EP0484616B1 EP 0484616 B1 EP0484616 B1 EP 0484616B1 EP 91105908 A EP91105908 A EP 91105908A EP 91105908 A EP91105908 A EP 91105908A EP 0484616 B1 EP0484616 B1 EP 0484616B1
Authority
EP
European Patent Office
Prior art keywords
pump device
gasket
delivery
ball
during
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.)
Expired - Lifetime
Application number
EP91105908A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0484616A1 (en
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/en
Application granted granted Critical
Publication of EP0484616B1 publication Critical patent/EP0484616B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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 are known, e.g. from EP-A-0 302 994, 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 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 Manually operated pump device for dispensing fluids Expired - Lifetime EP0484616B1 (en)

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 EP0484616A1 (en) 1992-05-13
EP0484616B1 true EP0484616B1 (en) 1994-08-03

Family

ID=11190910

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91105908A Expired - Lifetime EP0484616B1 (en) 1990-11-06 1991-04-13 Manually operated pump device for dispensing fluids

Country Status (4)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5816453A (en) * 1994-03-24 1998-10-06 The English Glass Company Limited Dispenser pump

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4411031A1 (de) * 1993-07-22 1995-01-26 Meckenstock Fritz Gmbh Handhebelbetätigte Pumpe
TR202018239A2 (tr) * 2020-11-14 2021-03-22 Sekeroglu Kimya Ve Plastik Sanayi Ve Ticaret Anonim Sirketi Sıvı püskürtme başlığı için tek yönlü valf

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4527594A (en) * 1983-06-13 1985-07-09 The Afa Corporation Check valve
JPH0685897B2 (ja) * 1987-08-11 1994-11-02 篤 多田 手動式トリガ−タイプディスペンサ−およびその生産方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5816453A (en) * 1994-03-24 1998-10-06 The English Glass Company Limited Dispenser pump

Also Published As

Publication number Publication date
IT9022062V0 (it) 1990-11-06
IT220413Z2 (it) 1993-09-21
ES2058973T3 (es) 1994-11-01
EP0484616A1 (en) 1992-05-13
IT9022062U1 (it) 1992-05-06
DE69103248D1 (de) 1994-09-08
DE69103248T2 (de) 1994-11-24

Similar Documents

Publication Publication Date Title
US5289952A (en) Device for dispensing foam, and push-button for a device of this kind
US4191313A (en) Trigger operated dispenser with means for obtaining continuous or intermittent discharge
US4618077A (en) Liquid dispensing pump
EP0179853B1 (en) Pump for dispensing liquid from a container
EP1872859B1 (en) Simplified pump for dispensing fluid substances withdrawn from a container
EP1399266B9 (en) Bellows pump for delivery gas-liquid mixtures
EP0755305B1 (en) Manually operated reciprocating liquid pump
CA2070080C (en) Liquid pump dispenser having a stationary spout
CZ288430B6 (en) Precompression pump sprayer
US6168050B1 (en) Hand-operated pump with a trigger, for dispensing liquids
US5222637A (en) Manually operated pump device for dispensing fluids
CA1053622A (en) Manual container mounted pump
US4347953A (en) Elastomer bulb dispensing pump
EP0145155B1 (en) Dispenser for a flowable product
EP0374348B1 (en) Improved precompression pump, for dispensing liquid products from vessels
US5850948A (en) Finger-operable pump with piston biasing post
US20060231577A1 (en) Viscous liquid dispensing pump
USRE33235E (en) Liquid dispensing pump
JP2000504618A (ja) 手動流体分配ポンプ
AU682918B2 (en) Pump sprayer with stationary discharge
US4215804A (en) Manual control dispensing pump for liquid containers
US4029261A (en) Piston displacement liquid spray pumps
US5108013A (en) Pump for dispensing liquid from a container
US4227628A (en) Fluid dispensing pump having axially deformable valve
EP0484616B1 (en) Manually operated pump device for dispensing fluids

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB IT

17P Request for examination filed

Effective date: 19920709

17Q First examination report despatched

Effective date: 19931217

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT

REF Corresponds to:

Ref document number: 69103248

Country of ref document: DE

Date of ref document: 19940908

ITF It: translation for a ep patent filed
ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2058973

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20030409

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20030414

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20030429

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20030620

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040413

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040414

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041103

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20040413

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041231

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050413

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20040414