EP0070385A1 - Variable-dispensing non-aerosol pump - Google Patents

Variable-dispensing non-aerosol pump Download PDF

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Publication number
EP0070385A1
EP0070385A1 EP82104976A EP82104976A EP0070385A1 EP 0070385 A1 EP0070385 A1 EP 0070385A1 EP 82104976 A EP82104976 A EP 82104976A EP 82104976 A EP82104976 A EP 82104976A EP 0070385 A1 EP0070385 A1 EP 0070385A1
Authority
EP
European Patent Office
Prior art keywords
cam
spray
variable
spray head
shroud
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.)
Withdrawn
Application number
EP82104976A
Other languages
German (de)
English (en)
French (fr)
Inventor
Patricia S. Mulvey
Peter P. Walters
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.)
Wyeth Holdings LLC
Original Assignee
American Cyanamid Co
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 American Cyanamid Co filed Critical American Cyanamid Co
Publication of EP0070385A1 publication Critical patent/EP0070385A1/en
Withdrawn legal-status Critical Current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
    • B05B11/1005—Piston pumps with means for adjusting or modifying pump stroke
    • B05B11/1008—Piston pumps with means for adjusting or modifying pump stroke by adjusting or modifying the pump end-of-dispensing-stroke position
    • 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
    • B05B11/1016—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element
    • B05B11/1019—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element the inlet valve moving concurrently with the controlling element during whole pressure and aspiration strokes, e.g. a cage for an inlet valve ball being part of the controlling element

Definitions

  • the present invention relates to a non-aerosol pump for the variable delivery of low viscosity liquids. More particularly, it relates to the modification of the valving means in a conventional, non-throttling, constant pressure non-aerosol pump to permit the variable delivery of spray or, more accurately, to permit delivery of smaller or greater amounts or product.
  • Conventional non-throttling pumps are shown in U.S. Patents 3,399,836; 4,050,613.and 4,173,297.
  • non-aerosol pumps are widely used to deliver a variety of liquid products, such as hair sprays, deodorants, various household products and cleaning agents, and the like, it is considered desirable to provide a means whereby the user can control the amount of product dispensed at any given time for any given purpose. This is particularly true with hair sprays where the user may only want to lightly spray the hair or apply spray to only a portion of the hair. Moreover, it provides means for the more ecconomical use of the product.
  • means are provided for the modification of the valving means in a conventional non-aerosol pump, whereby the actuator button is provided with an extension of "tooth" which, when the button is depressed, engages against a cam insert in the valve shroud having variable elevations.
  • the "tooth” is. thereby limited in its downward travel by the height of the elevation on the insert against which it engages.
  • the length of travel of the "tooth” governs the amount of product dispensed through the valve. This means, therefore, which is variable, enables a greater or lesser amount of product to be dispensed.
  • a conventional accumulator (or non-throttling) valve 1 is shown in Figure 1, with housing or shroud 2 having inner threads 3 and gasket 3A for attaching to a liquid container (not shown).
  • the valve body consists of an accumulator 4 which fits into the upper part of shroud 2 by means of cooperating detents 5 in shroud 2 and accumulator 4.
  • the accumulator 4 has a lower section 6 and an upper section 7, section 7 having a larger cross-sectional area than section 6.
  • Section 6 of accumulator 4 contains a seal valve 8 having seal 9, axial passage 10, which is biased upwardly by spring 11.
  • Eductor 12 is connected to opening 13 at the lower end of section 6 of accumulator 4.
  • Seal valve passage 10 is closed by spherical valve 14 held in place by an inverted cup 14A of poppet 15 which in turn is held by piston 16 which passes through opening 17 in the upper surface of shroud 2 and encloses the upper stem 18 of poppet 15.
  • Piston 16 is retained by a flange 19 abbutting against the lower end of inner skirt 20 in shroud 2.
  • Piston 16 contains axial passages 21 having an opening 22 sealed by poppet stem 18.
  • An actuator spray head 23 is fitted to the top of piston 16 having spray orifice 24.
  • spray head 23 has an outer depending skirt 25, which has been modified to have a tooth 26.
  • Shroud 2 has a collar 27 at the top which forms an annular groove 28.
  • a cam 29 fits in groove 28.
  • actuator spray head 23 is pressed down, thus pressing down piston 16, in turn pushing down poppet 15 and seal valve 8.
  • upper section 7 of accumulator 4 is primed (i.e. filled with liquid)
  • the pressure of the liquid being of greater cross-section than the area of lower section 6 will force seal valve 8 down faster, thus creating an opening between piston 16 and poppet 15.
  • the liquid in accumulator section 7 is then forced up through opening 22 of piston 16 through passage 21 and out spray orifice 24.
  • Spray head 23 may normally be pressed down until it touches the base of annular groove 28, and liquid will continue to be expelled thus expelling the maximum amount of liquid as a spray.
  • a cam in the form of an annular ring and having three elevations, H, M, and L on the upper surface thereof, fits into annular groove 28, and spray head 23 has a tooth 26 which will engage the elevated surfaces of cam 29.
  • cam 29 is positioned with the tooth over elevation H to allow the tooth to reach the base of groove 28 and expel the maximum amount of liquid.
  • tooth 26 will be positioned above a higher elevated surface of the cam, e.g. L.
  • cam 29 has been shown with three steps, it will be understood that it may have any number of steps.
  • cam 29 may be a flat, flexible member the length of which is equal to the circumference of annular groove 28. The flexible strip cam is then curved and fitted into groove 28.
  • cam 29 is stationary and spray head 23 rotates relative to cam 29. This may be done by fitting spray head 23 tightly to piston 16, by friction, adhesive means or by splines (not shown), so that when spray head 23 is rotated, piston 16 also rotates. On the other hand, piston 16 could be fixed against rotation (for example by axial splines not shown), and only spray cap 23 would rotate on piston 16. In either case, tooth 26 of spray head 23 may be positioned where desired over cam 29.
  • Figures 6 to 10 represent an alternative embodiment of the invention wherein the piston and spray head are fixed against rotation and the cam is rotatable.
  • shroud 2 is modified to omit collar 27 (as seen in Figure 1) and to provide an annular ridge 30 on shoulder 31.
  • Cam 29 is in the form of a molded cylinder 32 with an outer collar 33 and an annular groove 34 between collar 33 and cylinder 32 of cam 29.
  • the inner surface 35 of cam 29 contains an annular groove 36 which fits over annular ridge 30 of shroud 2 in a snap fit. In this manner, cam 29 may be rotated around shroud 2.
  • Piston 16 is fitted with a pair of axial splines 37 which slide in axial grooves 38 so that piston 16 does not rotate about its axis.
  • spray head 23 is fixed against rotation by means of splines 39 on the upper end of piston 16 and by grooves 40 in spray head 23.
  • Cam 29 has a curved upper surface 41 with notches at different elevations around its circumference at 0, 120 and 240° as shown in Figures 9 and 10. As shown in Figure 7, cam 29 has indicia corresponding with the notches, which indicia are positioned under spray head orifice 24 in accordance with the amount of liquid to be sprayed. When spray head 23 is depressed, skirt 25 fits into groove 34, and the lower surface 42 of spray orifice 24 contacts,the notch that has been indexed therewith, thus limiting the downward travel of piston 16 and consequently the amount of liquid sprayed. The least amount of liquid will be delivered at index position 0, the greatest amount at index position 240 and an intermediate amount at index position 120.
  • cam 29 may be marked on its outer surface with indicia to select the amount of liquid to be delivered, e.g. H (high amount of liquid, index position 240), M (medium amount of liquid, index position 120) and L (low amount of liquid, index position 0).
  • H high amount of liquid, index position 240
  • M medium amount of liquid, index position 120
  • L low amount of liquid, index position 0
  • cam 29 may have any number of cam stop positions desired, and this would not be limited to three as described above.
  • cam means could take other forms, and could be vertical rotating cam attached either to the shroud or the spray head, the main requirement being that a variable cam means is provided which limits the stroke of the valve piston to finite positions.
  • a fixed annular cam was provided on the upper surface of the shroud and the spray head was rotatable.
  • the spray pump had the following particulars.
  • a conventional pump spray having a shroud 10/16" in diameter with an annular space 1/16" wide was fitted with an insert 1 3/4" in length and a highest elevation of 4/16", a medium elevation of 2.5/16" and a low elevation of 1/16".
  • the actuator button was provided with a "tooth” 4/16" long by 7/16" wide.
  • the pump was fitted on a container having an aqueous alcoholic hair spray composition. The low setting provided 0.136 gram per stroke, the medium 0.068 gram per stroke, and the high gave 0.100 gram per stroke.

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
EP82104976A 1981-07-20 1982-06-07 Variable-dispensing non-aerosol pump Withdrawn EP0070385A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US28521781A 1981-07-20 1981-07-20
US285217 1981-07-20

Publications (1)

Publication Number Publication Date
EP0070385A1 true EP0070385A1 (en) 1983-01-26

Family

ID=23093279

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82104976A Withdrawn EP0070385A1 (en) 1981-07-20 1982-06-07 Variable-dispensing non-aerosol pump

Country Status (4)

Country Link
EP (1) EP0070385A1 (pt)
AU (1) AU8615482A (pt)
BR (1) BR8204094A (pt)
ZA (1) ZA825146B (pt)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0090659A2 (en) * 1982-03-31 1983-10-05 Calmar Inc. Liquid dispensing pump arrangement with selective stroke restriction
EP0135010A1 (de) * 1983-07-21 1985-03-27 Lang Apparatebau Gmbh Faltenbalgpumpe
EP0636421A1 (en) * 1993-07-30 1995-02-01 MESHBERG, Philip Delivery system for measured quantities of liquids especially medications
US5516006A (en) * 1993-07-30 1996-05-14 Meshberg; Philip Nasal dispenser
CN104289331A (zh) * 2013-07-18 2015-01-21 共聚生化科技（昆山）有限公司 旋转喷头及带旋转喷头的化妆品容器

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4051983A (en) * 1975-11-19 1977-10-04 Diamond International Corporation Pump sprayer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4051983A (en) * 1975-11-19 1977-10-04 Diamond International Corporation Pump sprayer
US4051983B1 (en) * 1975-11-19 1993-12-14 Calmar Inc. Pump sprayer having pump priming means

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0090659A2 (en) * 1982-03-31 1983-10-05 Calmar Inc. Liquid dispensing pump arrangement with selective stroke restriction
EP0090659A3 (en) * 1982-03-31 1984-04-04 Diamond International Corporation Liquid dispensing pump arrangement with selective stroke restriction
EP0135010A1 (de) * 1983-07-21 1985-03-27 Lang Apparatebau Gmbh Faltenbalgpumpe
US4655690A (en) * 1983-07-21 1987-04-07 Lang Apparatebau Gmbh Bellows pump having adjustable stop cam for varying the stroke
EP0636421A1 (en) * 1993-07-30 1995-02-01 MESHBERG, Philip Delivery system for measured quantities of liquids especially medications
US5433343A (en) * 1993-07-30 1995-07-18 Meshberg; Philip Delivery system for measured quantities of liquids, especially medications
US5516006A (en) * 1993-07-30 1996-05-14 Meshberg; Philip Nasal dispenser
CN104289331A (zh) * 2013-07-18 2015-01-21 共聚生化科技（昆山）有限公司 旋转喷头及带旋转喷头的化妆品容器
CN104289331B (zh) * 2013-07-18 2016-06-29 共聚生化科技（昆山）有限公司 旋转喷头及带旋转喷头的化妆品容器

Also Published As

Publication number Publication date
BR8204094A (pt) 1983-07-05
AU8615482A (en) 1983-01-27
ZA825146B (en) 1983-05-25

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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

Designated state(s): BE CH DE FR GB IT LI NL SE

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19840107

RIN1 Information on inventor provided before grant (corrected)

Inventor name: MULVEY, PATRICIA S.

Inventor name: WALTERS, PETER P.