WO1997040945A1 - Manual dispenser device to be applied with no gasket to the mouth of a bottle - Google Patents

Manual dispenser device to be applied with no gasket to the mouth of a bottle Download PDF

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Publication number
WO1997040945A1
WO1997040945A1 PCT/IT1997/000071 IT9700071W WO9740945A1 WO 1997040945 A1 WO1997040945 A1 WO 1997040945A1 IT 9700071 W IT9700071 W IT 9700071W WO 9740945 A1 WO9740945 A1 WO 9740945A1
Authority
WO
WIPO (PCT)
Prior art keywords
hollow body
bottle
stem
mouth
hollow
Prior art date
Application number
PCT/IT1997/000071
Other languages
French (fr)
Inventor
Francesco Mascitelli
Original Assignee
Sar S.P.A.
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 Sar S.P.A. filed Critical Sar S.P.A.
Priority to BR9702170A priority Critical patent/BR9702170A/en
Priority to JP9538720A priority patent/JPH11509474A/en
Priority to DE69710667T priority patent/DE69710667D1/en
Priority to EP97915674A priority patent/EP0835165B1/en
Priority to US08/981,460 priority patent/US5868286A/en
Publication of WO1997040945A1 publication Critical patent/WO1997040945A1/en

Links

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
    • B05B11/1023—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem
    • 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
    • B05B11/1042—Components or details
    • B05B11/1043—Sealing or attachment arrangements between pump and container
    • B05B11/1046—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container
    • B05B11/1047—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container the pump being preassembled as an independent unit before being mounted on the container

Definitions

  • Manual dispenser device to be applied with no gasket to the mouth of a bottle
  • the present invention relates to a manual dispenser device to be applied with no gasket to the mouth of a bottle containing a more or less dense liquid substance, pump which is held fast thereto by a ring nut mounted on the threaded neck of said bottle.
  • the manual pump of the type mentioned above comprises a hollow body, with check valve; a hollow stem, movable coaxially to said hollow body, bearing an outflow push-button; a piston, inserted on said stem and movable within said hollow body, in which it defines a pressure chamber; separate elastic return means for said stem and said piston; an annular element closing the hollow body.
  • Dispenser devices ofthe prior art present a hollow body whose upper portion is shaped, in the vicinity of the outflow push-button, into an edge with radial development destined to be held against the rim of the mouth of the bottle by a ring nut screwed on to the threaded neck of the bottle.
  • this edge of the hollow body is flat and it is destined to rest on an annular gasket placed on the mouth ofthe bottle.
  • this edge ofthe hollow body has a lip whose free end is set against the rim of the mouth of the bottle.
  • the seal preventing leakage ofthe more or less dense liquid substance contained in the bottle is satisfactory, but the inclusion of the gasket increases manufacturing and assembly costs.
  • the gasket is generally made of an elastic material, which differs from the other plastic materials making up the pump and the bottle, resulting in differentiated recycling problems.
  • the seal is generally less satisfactory, especially in that it entails the accurate machining of the surface of the mouth rim, in which the seal is essentially linear.
  • the purpose of the present invention is therefore to eliminate the drawbacks mentioned above.
  • the purpose of the present invention is to achieve a better seal between hollow body and bottle, without adding different means, such as gaskets and the like, and without entailing an increase in manufacturing costs.
  • Yet another purpose of the present invention is to embody dispenser devices destined to be applied with their hollow bodies on to a wide range of bottle mouth sizes, with the resulting reduction in production costs.
  • the invention solves the problem of providing a manual dispenser device to be applied with no gasket to the mouth of a bottle containing a more or less dense liquid substance, and held fast thereto by a ring nut mounted on the threaded neck of said bottle, the pump being of the type comprising an essentially cylindrical hollow body, open at its ends, with a check valve being fitted in correspondence with a first end; a hollow stem, movable coaxially to said hollow body, an end of said stem, protruding outside through the second end of said hollow body, bearing an outflow push-button; a piston, inserted on said stem and movable within said hollow body, the internal part of the hollow body between said piston and said check valve defining a pressure chamber; at least one elastic return means for said stem and said piston; an annular element closing said second end of said
  • FIG. 1 illustrates, half in central longitudinal section and half in vertical view, a dispenser device according to the present invention
  • FIG. 1 illustrates in enlarged section a detail A of Figure 1.
  • the Figures indicate as 1 the whole of a manual dispenser device to be applied with no gasket to a mouth 2 of a bottle 3, held fast thereto by a ring nut 4 mounted on the threaded neck 5 ofthe bottle 3.
  • the pump 1 comprises in general a hollow body 6, which is essentially cylindrical with different diameters, and is open at its ends, which are a first end, referred to hereafter as bottom end 7, and a second end, or top end 8, as a result of the relative position with respect to bottle 3 after mounting on the mouth 2 ofthe bottle.
  • a check valve 9 In correspondence with the bottom end 7 is fitted a check valve 9.
  • the pump 1 also comprises a hollow stem 10, movable coaxially s on the hollow body 6.
  • On the hollow stem 10 is inserted a piston 12, movable within the hollow body 6.
  • the internal part 13 of the hollow body 6 between the piston 12 and the check valve 9 defines a pressure chamber 14.
  • elastic return means are provided, in the form of helical springs for the stem 10 and die piston 12. Their operation is known, so they are not described further.
  • annular element IS for closing the top end 8 of the hollow body 6, which closure element 15 also serves as a guide for the stem 10.
  • the hollow body 6 ofthe pump 1 presents in proximity of its top end 8 a folded-back lip 16 whose cross section is shaped as an inverted V.
  • This folded-back lip 16 circumscribes the bottle mouth 2, by means of its first portion 16a inclined outward and its second portion 16b inclined inward, with respect to the body 6.
  • the portions 16a, 16b of the folded-back lip of the hollow body are respectively in contact, in their internal sides, with an external rim 2a and an internal rim 2b of the mouth 2.
  • the folded-back lip 16 preferably has a flat bottom 16c, but this bottom could also be embodied as a sharp edge (not represented).
  • the portion 16a inclined outward approximately presents, on the external side, an inclination corresponding to that of an internal lateral profile
  • the flat bottom 16c ofthe folded-back lip 16 is destined to be set against an internal base profile 4c ofthe ring nut 4.
  • the inclination of the portion 16a inclined outward is at an angle of about 45°, whereas the inclination of the portion 16b inclined inward is at an angle of about 30°.

Landscapes

  • Closures For Containers (AREA)
  • Reciprocating Pumps (AREA)

Abstract

The present invention relates to a manual dispenser device (1) to be applied with no gasket to the mouth (2) of a bottle (3) containing a more or less dense liquid substance, pump held fast thereto by a ring nut (4) mounted on to the threaded neck (5) of the bottle. The pump (1) comprises a hollow body (6), with check valve (9); a hollow stem (10), movable coaxially to the hollow body (6), bearing an outflow push-button (11); a piston (12) inserted on the stem (10) and movable within the hollow body (6), in which it defines a pressure chamber (14); at least one elastic return means for the stem (10) and the piston (12); an element (15) for closing the hollow body (6). The hollow body (6) presents at its top a folded-back lip (16) shaped into an inverted V cross section and circumscribing the bottle mouth (2).

Description

Manual dispenser device to be applied with no gasket to the mouth of a bottle
The present invention relates to a manual dispenser device to be applied with no gasket to the mouth of a bottle containing a more or less dense liquid substance, pump which is held fast thereto by a ring nut mounted on the threaded neck of said bottle.
The manual pump of the type mentioned above comprises a hollow body, with check valve; a hollow stem, movable coaxially to said hollow body, bearing an outflow push-button; a piston, inserted on said stem and movable within said hollow body, in which it defines a pressure chamber; separate elastic return means for said stem and said piston; an annular element closing the hollow body.
Dispenser devices ofthe prior art present a hollow body whose upper portion is shaped, in the vicinity of the outflow push-button, into an edge with radial development destined to be held against the rim of the mouth of the bottle by a ring nut screwed on to the threaded neck of the bottle. In certain embodiments, this edge of the hollow body is flat and it is destined to rest on an annular gasket placed on the mouth ofthe bottle. In other embodiments, this edge ofthe hollow body has a lip whose free end is set against the rim of the mouth of the bottle. In the embodiments with gasket, the seal preventing leakage ofthe more or less dense liquid substance contained in the bottle is satisfactory, but the inclusion of the gasket increases manufacturing and assembly costs. In particular, the gasket is generally made of an elastic material, which differs from the other plastic materials making up the pump and the bottle, resulting in differentiated recycling problems. In the embodiments with rabbet lip, the seal is generally less satisfactory, especially in that it entails the accurate machining of the surface of the mouth rim, in which the seal is essentially linear.
The latter type of embodiment mentioned above, however, presents the problem that the radially developed edge of the hollow body of the pump must be dimensioned to fit the particular bottle mouth. However, commercially available bottles, even of the same type and size, may present dimensional or shape differences also in their mouth profile, and thus different pump hollow bodies, if not indeed different pumps, must be provided for the various commercial bottle mouth sizes.
The purpose of the present invention is therefore to eliminate the drawbacks mentioned above.
In particular, the purpose of the present invention is to achieve a better seal between hollow body and bottle, without adding different means, such as gaskets and the like, and without entailing an increase in manufacturing costs.
Yet another purpose of the present invention is to embody dispenser devices destined to be applied with their hollow bodies on to a wide range of bottle mouth sizes, with the resulting reduction in production costs. The invention, as characterised by the claims which follow, solves the problem of providing a manual dispenser device to be applied with no gasket to the mouth of a bottle containing a more or less dense liquid substance, and held fast thereto by a ring nut mounted on the threaded neck of said bottle, the pump being of the type comprising an essentially cylindrical hollow body, open at its ends, with a check valve being fitted in correspondence with a first end; a hollow stem, movable coaxially to said hollow body, an end of said stem, protruding outside through the second end of said hollow body, bearing an outflow push-button; a piston, inserted on said stem and movable within said hollow body, the internal part of the hollow body between said piston and said check valve defining a pressure chamber; at least one elastic return means for said stem and said piston; an annular element closing said second end of said hollow body, said closing element also serving as a guide for said stem, which in general is characterised in that said hollow pump body presents at its top, in proximity of its said second end, a folded-back lip shaped into an inverted V cross section and circumscribing said bottle neck mouth, by means of one of its portions inclined outward and one of its portions inclined inward, with respect to said body, portions which are respectively in circumference contact, in their internal sides, with an external rim and with an internal rim of said mouth. Additional characteristics and advantages of the present invention shall be made clearer in the detailed description that follows, of a preferred form of embodiment illustrated purely by way of indicative but non limiting example in the accompanying drawings in which:
- Figure 1 illustrates, half in central longitudinal section and half in vertical view, a dispenser device according to the present invention;
- Figure 2 illustrates in enlarged section a detail A of Figure 1. In accordance with the present invention, the Figures indicate as 1 the whole of a manual dispenser device to be applied with no gasket to a mouth 2 of a bottle 3, held fast thereto by a ring nut 4 mounted on the threaded neck 5 ofthe bottle 3. Traditionally, the pump 1 comprises in general a hollow body 6, which is essentially cylindrical with different diameters, and is open at its ends, which are a first end, referred to hereafter as bottom end 7, and a second end, or top end 8, as a result of the relative position with respect to bottle 3 after mounting on the mouth 2 ofthe bottle. In correspondence with the bottom end 7 is fitted a check valve 9. The pump 1 also comprises a hollow stem 10, movable coaxially s on the hollow body 6. The end of the stem 10, protruding outside through the top end 8 ofthe hollow body 6, bears an outflow push-button 11. On the hollow stem 10 is inserted a piston 12, movable within the hollow body 6. The internal part 13 of the hollow body 6 between the piston 12 and the check valve 9 defines a pressure chamber 14. o As is well known, though they are not represented in the Figures, elastic return means are provided, in the form of helical springs for the stem 10 and die piston 12. Their operation is known, so they are not described further. Lastly, there is an annular element IS for closing the top end 8 of the hollow body 6, which closure element 15 also serves as a guide for the stem 10. 5 According to the present invention, the hollow body 6 ofthe pump 1 presents in proximity of its top end 8 a folded-back lip 16 whose cross section is shaped as an inverted V. This folded-back lip 16 circumscribes the bottle mouth 2, by means of its first portion 16a inclined outward and its second portion 16b inclined inward, with respect to the body 6. When mounted on to the bottle 0 mouth 2, the portions 16a, 16b of the folded-back lip of the hollow body are respectively in contact, in their internal sides, with an external rim 2a and an internal rim 2b of the mouth 2. The folded-back lip 16 preferably has a flat bottom 16c, but this bottom could also be embodied as a sharp edge (not represented). 5 In particular, the portion 16a inclined outward approximately presents, on the external side, an inclination corresponding to that of an internal lateral profile
4a ofthe ring nut 4. The flat bottom 16c ofthe folded-back lip 16 is destined to be set against an internal base profile 4c ofthe ring nut 4.
By way of non limiting indication, the inclination of the portion 16a inclined outward is at an angle of about 45°, whereas the inclination of the portion 16b inclined inward is at an angle of about 30°.
The invention thus conceived can be subject to numerous modifications and variations without thereby departing from the scope of the inventive concept.
Moreover, all components may be replaced with technically equivalent elements. In practice, modifications and/or improvements are clearly possible, without thereby departing from the scope ofthe claims that follow.

Claims

Claims
1. Manual dispenser device to be applied with no gasket to the mouth (2) of a bottle (3) for a more or less dense liquid substance, and held fast thereto by a ring nut (4) mounted on to the threaded neck (5) of said bottle (3), the pump being ofthe type which comprises:
- a hollow body (6), essentially cylindrical, open at its ends (7, 8), a check valve (9) being provided in correspondence with a first end (7);
- a hollow stem (10), movable coaxially to said hollow body (6), an end of said stem, protruding outside through the second end (8) of said hollow body (6), bearing an outflow push-button (11);
- a piston (12), inserted on said stem (10) and movable within said hollow body (6), the internal part (13) of the hollow body (6) between said piston (12) and said check valve (9) defining a pressure chamber (14);
- at least an elastic return means for said stem and said piston;
- an annular element (15) for closing said second end (8) of said hollow body (6), said closure element (15) serving also as a guide for said stem (10); characterised in that said hollow pump body (6) presents at its top, in proximity of its said second end (8), a folded-back lip (16) shaped into an inverted V cross section and circumscribing said mouth (2) of the bottle neck (5), by means of its portion (16a) inclined outward and its portion (16b) inclined inward, with respect to said hollow body (6), portions (16a, 16b) which are respectively in circumference contact, in their internal sides, with an external rim (2a) and an internal rim (2b) of said mouth (2).
2. Pump according to cla , characterised in that said folded-back lip (16) of the hollow body (6) presents a flat bottom (16c) between its said portion (16a) inclined outward and its said portion (16b) inclined inward.
3. Pump according to claim 1, characterised in that said portion (16a) inclined outward of said hollow body folded-back lip (16) presents, on its outer side, an inclination corresponding to that of an internal lateral profile (4a) of said ring nut (4).
4. Manual dispenser device to be applied with no gasket to the mouth of a bottle according to the previous claims and according to what has been described and illustrated with reference to the Figures of the accompanying drawings and for the purposes mentioned.
PCT/IT1997/000071 1996-04-30 1997-03-28 Manual dispenser device to be applied with no gasket to the mouth of a bottle WO1997040945A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BR9702170A BR9702170A (en) 1996-04-30 1997-03-28 Manual dispensing device to be applied without gasket to the mouth of a bottle
JP9538720A JPH11509474A (en) 1996-04-30 1997-03-28 Manual feeding device suitable for gasketless bottle mice
DE69710667T DE69710667D1 (en) 1996-04-30 1997-03-28 MANUAL DISPENSER THAT IS MOUNTED ON THE NECK OF A BOTTLE WITHOUT A SEAL
EP97915674A EP0835165B1 (en) 1996-04-30 1997-03-28 Manual dispenser device to be applied with no gasket to the mouth of a bottle
US08/981,460 US5868286A (en) 1996-04-30 1997-03-28 Manual dispenser device to be applied with no gasket to the mouth of a bottle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT96RM000293A IT1285133B1 (en) 1996-04-30 1996-04-30 MANUAL DISPENSING PUMP TO BE APPLIED WITHOUT GASKET TO A BOTTLE MOUTH.
ITRM96A000293 1996-04-30

Publications (1)

Publication Number Publication Date
WO1997040945A1 true WO1997040945A1 (en) 1997-11-06

Family

ID=11404193

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT1997/000071 WO1997040945A1 (en) 1996-04-30 1997-03-28 Manual dispenser device to be applied with no gasket to the mouth of a bottle

Country Status (8)

Country Link
US (1) US5868286A (en)
EP (1) EP0835165B1 (en)
JP (1) JPH11509474A (en)
CN (1) CN1079297C (en)
BR (1) BR9702170A (en)
DE (1) DE69710667D1 (en)
IT (1) IT1285133B1 (en)
WO (1) WO1997040945A1 (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8028864B2 (en) 1992-02-24 2011-10-04 Homax Products, Inc. Actuator systems and methods for aerosol wall texturing
US7278590B1 (en) 1992-02-24 2007-10-09 Homax Products, Inc. Systems and methods for applying texture material to ceiling surfaces
USD418418S (en) * 1999-04-27 2000-01-04 Calmar Inc. Dispenser head for manual dispenser
US7500621B2 (en) 2003-04-10 2009-03-10 Homax Products, Inc. Systems and methods for securing aerosol systems
US20050161531A1 (en) 2004-01-28 2005-07-28 Greer Lester R.Jr. Texture material for covering a repaired portion of a textured surface
KR100569180B1 (en) * 2004-04-29 2006-04-10 주식회사 종우실업 Small hand-operated pump
US7677420B1 (en) 2004-07-02 2010-03-16 Homax Products, Inc. Aerosol spray texture apparatus for a particulate containing material
US7487893B1 (en) 2004-10-08 2009-02-10 Homax Products, Inc. Aerosol systems and methods for dispensing texture material
US8344056B1 (en) 2007-04-04 2013-01-01 Homax Products, Inc. Aerosol dispensing systems, methods, and compositions for repairing interior structure surfaces
US8469292B1 (en) 2007-04-04 2013-06-25 Homax Products, Inc. Spray texture material compositions and dispensing systems and methods
US9382060B1 (en) 2007-04-05 2016-07-05 Homax Products, Inc. Spray texture material compositions, systems, and methods with accelerated dry times
US20090108023A1 (en) * 2007-10-24 2009-04-30 Houghton Weston R Dispenser pump head for controlling misdirection
IT1395956B1 (en) * 2009-04-02 2012-11-02 Emsar Spa DISPENSER.
US9248457B2 (en) 2011-07-29 2016-02-02 Homax Products, Inc. Systems and methods for dispensing texture material using dual flow adjustment
US9156042B2 (en) 2011-07-29 2015-10-13 Homax Products, Inc. Systems and methods for dispensing texture material using dual flow adjustment
US9156602B1 (en) 2012-05-17 2015-10-13 Homax Products, Inc. Actuators for dispensers for texture material
US9435120B2 (en) 2013-03-13 2016-09-06 Homax Products, Inc. Acoustic ceiling popcorn texture materials, systems, and methods
CA2907237A1 (en) * 2013-03-15 2014-09-18 Homax Products, Inc. Adapter systems and methods for aerosol dispensing systems
CA2859537C (en) 2013-08-19 2019-10-29 Homax Products, Inc. Ceiling texture materials, systems, and methods
USD787326S1 (en) 2014-12-09 2017-05-23 Ppg Architectural Finishes, Inc. Cap with actuator
US10632483B1 (en) 2018-06-13 2020-04-28 Nathan Gillaspy Universal pressurized spray adapter
EP3928873A1 (en) 2020-06-25 2021-12-29 THOMAS, Götz Disinfectant dispenser, dispensing head for a disinfectant dispenser, disinfectant container and method for dispensing disinfectant

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1476608A (en) * 1965-11-23 1967-04-14 Bouchons Plastiques Improvements to spraying devices
US3907174A (en) * 1971-04-13 1975-09-23 Vca Corp Dispensing pump construction with foldable discharge nozzle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1476608A (en) * 1965-11-23 1967-04-14 Bouchons Plastiques Improvements to spraying devices
US3907174A (en) * 1971-04-13 1975-09-23 Vca Corp Dispensing pump construction with foldable discharge nozzle

Also Published As

Publication number Publication date
ITRM960293A1 (en) 1997-10-30
BR9702170A (en) 1999-03-02
EP0835165A1 (en) 1998-04-15
US5868286A (en) 1999-02-09
IT1285133B1 (en) 1998-06-03
ITRM960293A0 (en) 1996-04-30
EP0835165B1 (en) 2002-02-27
DE69710667D1 (en) 2002-04-04
CN1079297C (en) 2002-02-20
CN1189786A (en) 1998-08-05
JPH11509474A (en) 1999-08-24

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