• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    “DISTRIBUTION PUMP WITH BOWL SPRING” A dispensing pump (10) for liquids, viscous materials, foams, gels, etc., includes a resilient cup spring (18) so that the entire pump can be more easily recycled. The dispensing pump (10) includes a base portion (12), an inlet valve (14), a piston valve (16), a cup spring (18), an elastic guide frame (20) and a pump actuator (22). When actuated, the cup spring (18) is deformed in an elastic manner on opposite elastic ribs (39) and then, when released, the cup (18) returns elasticly to its normal form at rest, returning the guide (20) and the pump actuator (22) to their normal resting positions. The cup spring (18) includes structures that interact with the piston valve (16) to open the outlet valve.
    公开号:BR112016015602B1
    申请号:R112016015602-1
    申请日:2014-12-31
    公开日:2021-01-26
    发明作者:Eelco H. Deman
    申请人:Westrock Mwv, Llc；
    IPC主号:
    专利说明:

    BACKGROUND OF THE INVENTION 1. FIELD OF THE INVENTION TECHNICAL FIELD
    [0001] The present invention relates to a dispensing pump for liquids, viscous flowable materials, foams, gels, etc., and more particularly to a dispensing pump with a cup shaped plastic spring. 2. DESCRIPTION OF RELATED TECHNIQUE
    [0002] Distribution pumps are generally known in the art. They generally comprise a body portion that is seated on the neck of a container, a mouthpiece that acts together that slides in relation to the body portion, and an elastic structure that moves the mouthpiece that acts together to its normal position of rest. To distribute the material in the container, the user manually compresses the nozzle which forces the material from the inside of the body portion. When the nozzle is released, the spring forces the nozzle portion back to its normal resting position.
    [0003] In document US2009 / 140009, a pump for a bottle is disclosed. The pump comprises a cap to be mounted at the mouth of the bottle, a casing seated inside the cap, an extraction tube connected to a lower end of the casing with a one-way valve seated between them so that the contents of the bottle can be pulled into the bottle. casing through the extraction tube and retained from the reverse flow back to the bottle, a pressure head to control a piston tube to move axially in the cap and the casing, an elastic member seated in the casing to deform and resiliently axially when responding to the piston tube with axial displacement, so that the contents of the bottle can enter the housing through the one-way valve and be extruded into the piston tube through a radial orifice, in order to be expelled at the outlet of the pressure head. SUMMARY OF THE INVENTION
    [0004] A modality taken as an example of a delivery pump according to the present invention generally comprises a base portion, an inlet valve, a piston valve, a resilient polymer cup spring, an elastic guide and an pump actuator.
    [0005] The base portion has a bottom wall and a side wall that extends upwards. The bottom wall includes a centrally located entrance hole, which is accommodated in communication with the neck of a container (not shown) that has kept the material to be distributed inside. The base portion still has a flow conduit that extends upwardly from the inner surface of the bottom wall that surrounds the entrance orifice.
    [0006] The inlet valve is accommodated inside the inlet port, and is slidably movable between a normal closed position, where the inlet valve is seated inside the inlet port, and an open position, where the inlet is unsent from the inlet port to allow material to flow into the flow channel of the container and from the container.
    [0007] The piston valve has a lower end accommodated within the flow duct, an upper end, and an outlet opening adjacent to the upper end.
    [0008] The cup spring has an annular top wall and an outer side wall that hangs downwards. According to the teachings of the invention, the polymer cup spring is preferably molded from a polymer material similar to that of the other pump structures, so that the entire dispensing pump can be easily recycled. Metal springs in devices in the prior art forced disassembly of the pump prior to recycling, and thus restricted both the use and disposal of the device in the prior art. The cup spring, moreover, includes an inner annular piston wall that extends downwardly from the upper wall.
    [0009] To provide interacting elements for the cup spring, the base portion includes two opposing elastic ribs that extend upwardly from the bottom wall. The elastic ribs have an outer ramp edge that interacts with the outer side wall of the cup spring to deform the cup spring from its normal resting position. In operation, the cup spring will be forced down over the elastic ribs where both, the side wall and the upper wall will deform in an elastic manner to allow the cup to fit over the elastic ribs. The deformation of the bowl walls stores energy and will return the bowl spring to its normal resting position when the downward force is released from the bowl spring.
    [0010] The cup spring is accommodated within the base portion with the lower peripheral edge of the cup spring side wall accommodated on the ramp edges of the elastic ribs, and such that the upper end of the piston valve is accommodated in a concentric manner inside the inner piston wall, and further such that the outer surface of the inner piston wall is placed concentricly within the flow conduit. In this regard, the piston valve is slidably movable within the flow duct and within the inner piston wall and the upper end of the piston valve engages and operates in conjunction with the inner piston wall to form a valve. exit.
    [0011] The guide structure has a top wall, an outer side wall that hangs downward and outward from the top wall, and a downward channel that interacts with an annular crest that extends upwardly from of the top wall of the cup spring. The top wall also includes an outlet hole located within the annular interior wall. The guide structure is accommodated within the base portion where the outer end edge of the outer side wall is slidably accommodated within the outer side wall of the base portion. This arrangement allows the guide structure to be slidably movable within the base portion, and the inter-adjusting structures facilitate guided movement of the bowl spring with the guide structure.
    [0012] The pump actuator includes a top wall, side walls that hang down, and a distribution orifice with an internal duct. The pump actuator is accommodated on the guide structure and inside the side wall of the base portion where the internal conduit of the distribution orifice communicates with the exit orifice of the guide structure and the pump actuator is sliding in relation to the base .
    [0013] In operation, forced compression of the pump actuator causes a corresponding downward movement of the guide structure, a corresponding downward movement and deformation of the cup spring on the elastic ribs, a corresponding sliding movement of the inner piston wall of the cup spring relative to the upper end of the piston valve to open the outlet valve, and a corresponding sliding motion down the piston valve to force material within the flow duct to flow through the outlet valve through the orifice exit the guide frame and finally out through the nozzle distribution hole.
    [0014] Upon the subsequent release of the pump actuator, the cup spring returns elasticly to its normal shape and resting position, causing a forced movement upwards of the guide structure of the pump actuator, a corresponding sliding movement of the wall of the pump. inner piston of the cup spring in relation to the upper end of the piston valve to close the outlet valve, and a corresponding sliding upward movement of the piston valve, which in turn creates a vacuum pressure within the flow conduit, bringing the inlet valve from its normally closed position to its open position, and bringing material to the flow duct through the inlet port. BRIEF DESCRIPTION OF THE DRAWINGS
    [0015] Although the specification concludes with claims that point particularly and distinctly to claim particular embodiments of the present invention, several embodiments of the invention can be more easily understood and appreciated from the following descriptions of several embodiments of the invention, when read together with the accompanying drawings, in which:
    [0016] Figures 1-7 are seen in sequential cross section of a modality taken as an example of the distribution pump of the present invention when it is cycled through a normal position at rest, compression to empty flow duct, return stroke to o refill the flow duct, and return to the normal resting position;
    [0017] Figures 8-9 are seen in cross section of another modality taken as an example, with a slightly larger piston valve; and
    [0018] Figures 10-13 are seen in perspective of a basic spring shaped into a deformed bowl on three equally spaced elastic ribs. DETAILED DESCRIPTION OF THE INVENTION
    [0019] Referring now to the drawings, a modality taken as an example of the invention is indicated generically at 10 in figures 1-7. According to the present invention, the delivery pump 10 generally comprises a base portion 12, an inlet valve 14, a piston valve 16, a resilient polymer cup spring 18, a spring guide 20 and a pump actuator 22.
    [0020] The base portion 12 has a bottom wall 24 and a side wall that extends upwards 26. The bottom wall 24 includes a centrally located entrance hole 28, which is accommodated in communication with the neck of a container (not shown) that has kept the material (not shown) to be distributed. The delivery pump 10 is useful for a variety of flowable materials that include, but are not limited to liquids, viscous flowable fluids, foams, gels, etc. The base portion 12 has a flow conduit 30 that extends upwardly from the inner surface of the bottom wall 24 that surrounds the inlet orifice 28.
    [0021] The inlet valve 14 is accommodated inside the inlet port 28 and is movable in sliding between a normal closed position where the inlet valve 14 is seated inside the inlet port 28, and an open position where the inlet valve 14 is removed from the inlet hole 28 to allow material to flow into the flow conduit 30 from the container.
    [0022] The piston valve 16 is generally cylindrical and has a lower end 32 accommodated within the flow conduit 30, an upper end 34 and an outlet opening 36 adjacent to the upper end 34.
    [0023] The cup spring 18 has an annular top wall 37 and an outer side wall that hangs down 38. In the embodiment taken, the top wall is slightly detached upwards 37 to provide additional spring elastic force. According to the teachings of the invention, the cup spring 18 is preferably molded of a polymeric material such as polypropylene, similar to that of the other pump structures, so that the entire delivery pump 10 can be assembled from all plastic parts, and thus be easily recycled. The metal spring in prior art devices forced disassembly of the pump before recycling, and thus at the same time restricted the use and disposal of the prior art device.
    [0024] To provide interacting elements to deform the cup spring 18, the base portion 12 includes two opposing elastic ribs 39A and 39B extending upwardly from the bottom wall. As can be seen in the figures, the elastic ribs 39A and 39B have a ramp outer edge 40A, 40B that interact with the outer side wall 38 of the cup spring 18 to deform the cup spring 18 from its normal resting position . More specifically, it can be seen that the top end of the ramp edges 40A, 40B has a smaller radius than the side wall 38 of the cup spring 18, while its bottom end has a larger radius. This allows the cup spring 18 to initially settle on top of the elastic ribs 30A, 30B and then gradually deform the side wall 38 when the cup spring 18 is forced downward on the ribs 39A and 39B.
    [0025] In operation, the cup spring 18 will be forced downward on the elastic ribs 39A, 39B when both the side wall 38 and the top wall 37 will deform elastically to allow the cup 18 to adjust over the diameter portions largest of the elastic ribs 39A, 39B. The deformation of the walls of the plastic bowl 37, 38 stores energy and will return the bowl spring 18 to its normal resting position when downward force is released from the top of the bowl spring 18. The ramp edges 40A, 40B facilitate both, downward deformation of the cup spring 18 as well as its elastic return.
    [0026] Referring briefly to figures 10-13, elastic deformation of another cup spring 41 taken as an example, can easily be seen in connection with the use of three equally spaced elastic ribs 42. Figures 10 and 11 show the spring in cup 41 in its normal resting position, while figures 12 and 13 show the cup spring 41 compressed downward on the elastic ribs 42, and deformed to fit over the elastic ribs 42.
    [0027] Referring again to figures 1-7, the cup spring 18 is accommodated within the base portion 12 with the lower peripheral edge of the side wall 38 of the cup spring 18 accommodated on the ramp edges 40A, 40B of the elastic ribs 39A, 39B and such that the upper end 34 of the piston valve 18 is accommodated concentricly within the inner piston wall 44, and further such that the outer surface of the inner piston wall 44 is placed concentricly within the conduit. flow 30. In this regard, piston valve 16 is movable in sliding within flow duct 30 and within the interior piston wall 44 and the upper end 34 of piston valve 16 engages and operates in conjunction with the wall of the inner piston 44 to form an outlet valve.
    [0028] The guide frame 20 (elastic guide of the bowl) has a top wall 46, an outer side wall 48 that hangs down and out from the top wall 46, and a downward channel 49 that engages in inter-adjusting an annular ridge 50 extending upwardly from the top wall 37 of the cup spring 18. The top wall 46 also includes an outlet hole 52 located within the perimeter of the channel 49. The guide frame 20 is accommodated within the base portion 12 where the outer end edge of the outer side wall 48 is slidably accommodated within the outer side wall 26 of the base portion. This arrangement allows the guide structure 20 to be movable in sliding within the base portion 12 while the inter-adjustment structures 49, 50 facilitate guided deformation and elastic return of the cup spring 18.
    [0029] The pump actuator 22 includes a top wall 54, side walls that hang down 56, and a distribution orifice 58 with an internal conduit 60. The pump actuator 22 is accommodated on the guide frame 20 and inside the side wall 26 of the base portion 12 where the inner duct 60 of the distribution orifice 58 communicates with the outlet orifice 52 of the guide structure 20 and the pump actuator 22 is movable in sliding relative to the base portion 12.
    [0030] In operation (see the sequence of figures 1-3) forced downward compression of the pump actuator 22 causes a corresponding downward movement of the guide structure 20, a corresponding downward movement and deformation of the cup spring 18 over the elastic ribs (figure 2), a corresponding sliding movement of the inner piston wall 44 of the cup spring 18 in relation to the upper end 34 of the piston valve 16 (figure 2) to open the outlet valve and, finally, a sliding movement corresponding down the piston valve 16 (figure 3) to force the material inside the flow conduit 30 to flow out through the outlet valve, through the outlet orifice 52 of the guide structure 20 and finally out through the distribution 58 of pump actuator 22.
    [0031] Upon the subsequent release of the pump actuator 22 (see sequence of figures 4-7), the cup spring 18 returns in an elastic manner (return stroke) to its normal resting position (figure 8) causing a forced movement upwards of the guide frame 20 and pump actuator 22 (figures 4-6), a corresponding sliding movement of the inner piston wall 44 of the cup spring 18 in relation to the upper end 34 of the piston valve 16 to close the valve outlet (figures 5-6) and a corresponding sliding upward movement of the piston valve 16 which, in turn, creates a vacuum pressure within the flow conduit 30 which brings the inlet valve 14 upwards from its normally position closed to its open position and which brings material into the flow duct 30 through inlet port 28 (figures 5-6).
    [0032] When the cup spring 18 returns to its normal resting position (figure 7) the flow duct 30 is refilled with material, and vacuum pressure is reduced allowing the inlet valve 14 to return to its normally closed position.
    [0033] Referring to figures 8 and 9, another modality taken as example 10A is illustrated, showing the use of a piston valve of slightly larger diameter 16 to allow a greater flow of material out of the flow duct 30. The valve larger piston 16 also stabilizes spring compression in bowl 18 and return movement of the entire set.
    [0034] It can be seen, therefore, that the modality taken as an example can provide an exclusive distribution pump, which can be built entirely of molded plastic parts and thus easily recycled.
    [0035] Although certain specific structures that configure different modalities of the invention are shown and described here, it will be evident to those skilled in the art that various modifications and rearrangements of the parts can be made without departing from the spirit and scope of the underlying innovative concept, and that it is not limited to the particular forms shown and described herein, except as indicated by the scope of the appended claims.
    权利要求:
    Claims (15)
    [0001]
    1. Distribution pump (10) characterized by the fact that it comprises: a base portion (12) that has a bottom wall (24) and a side wall (26) that extends upwards, the bottom wall including an orifice inlet (28) centrally located, the base portion still having a flow conduit (30) extending upwardly from the inner surface of the bottom wall and surrounding the inlet port; an inlet valve (14) accommodated within the inlet port, the inlet valve being slidably movable between a normal closed position where the inlet valve is seated within the inlet port, and an open position where the inlet is unsent the entry hole; a piston valve (16) having a lower end accommodated within the flow conduit, an upper end and an outlet opening adjacent to the upper end; a cup spring (18) having an annular top wall (37) and an outer side wall (38) that hangs down, the cup spring still including an inner piston wall (44) extending downwardly from the upper wall, the base portion including at least two opposing elastic ribs (39A, 39B) extending upwardly from the bottom wall; the cup spring being accommodated within the base portion such that the upper end of the piston valve is accommodated concentricly within the inner piston wall, the outer surface of the inner piston wall is placed concentricly within the flow conduit and the outer side wall of the cup spring is seated on the elastic ribs, the upper end of the piston valve engaging and operating in conjunction with the inner piston wall to form an outlet valve, the piston valve being slidably movable within the flow duct and inside the inner piston wall; a guide structure (20) having a top wall (46), an outer side wall (48) that hangs down and out from the top wall, the guide structure being accommodated within the base portion on which the edge terminal exterior of the outer sidewall is accommodated in sliding within the outer sidewall of the base portion, the guide structure being movable in sliding within the base portion; and a pump actuator (22) that has a top wall (54), side walls (56), and a dispensing hole (58), the pump actuator being accommodated on the guide frame and within the base portion, where the distribution orifice communicates with the exit orifice of the guide structure, the pump actuator being movable in sliding inside the base portion, therefore, forced compression under the pump actuator causes a deformation of the cup spring on the elastic ribs and material force inside the flow duct to flow out of the distribution orifice, and therefore, when the pump actuator is released, the bowl spring returns elasticly to its normal form at rest, and brings material into the interior of the flow duct through the inlet port.
    [0002]
    Distribution pump according to claim 1, characterized by the fact that the base portion includes three or more equally spaced elastic ribs.
    [0003]
    3. Distribution pump, according to claim 1, characterized by the fact that the elastic ribs have a ramp outer edge (40A, 40B) with a smaller radius than the outer side wall of the cup spring at its upper end , and a radius greater than the outer side wall of the cup spring at its lower end.
    [0004]
    4. Distribution pump, according to claim 2, characterized by the fact that the elastic ribs have an outer ramp edge with a radius smaller than the outer side wall of the cup spring at its upper end and a radius greater than than the outer side wall of the cup spring at its lower end.
    [0005]
    5. Distribution pump, according to claim 1, characterized by the fact that the upper wall of the cup spring and the top wall of the guide structure have formations that inter-adjust in order to facilitate the guided movement of the cup spring.
    [0006]
    6. Distribution pump, according to claim 2, characterized by the fact that the upper wall of the cup spring and the top wall of the guide structure have formations that inter-adjust (49, 50) in order to facilitate the guided movement spring in bowl.
    [0007]
    7. Distribution pump, according to claim 3, characterized by the fact that the upper wall of the cup spring and the top wall of the guide structure have formations that inter-adjust (49, 50) in order to facilitate guided movement of the cup spring.
    [0008]
    8. Distribution pump, according to claim 4, characterized by the fact that the upper wall of the cup spring and the top wall of the guide structure have formations that inter-adjust (49, 50) in order to facilitate the guided movement spring in bowl.
    [0009]
    9. Distribution pump, according to claim 1, characterized by the fact that in said open position the inlet is removed from the inlet to allow material to flow into the flow duct; and in which said forced compression below the pump actuator causes a corresponding downward movement of the guide structure, a corresponding downward movement and deformation of the cup spring on the elastic ribs, a corresponding sliding movement of the inner piston wall of the spring cupped relative to the upper end of the piston valve to open the outlet valve, and a corresponding sliding movement down the piston valve to force material into the flow duct to flow out through the outlet valve, the orifice outlet of the guide structure and the distribution hole (58) of a nozzle, and in which when the pump actuator is released, the cup spring returns elasticly to its normal form at rest, causing a forced movement upward from the guide structure and pump actuator, and a corresponding sliding movement of the inner piston wall of the cup spring in relation to the upper end of the valve the piston valve, to close the outlet valve, and a corresponding sliding movement up the piston valve, which in turn creates a vacuum pressure within the flow duct, bringing the inlet valve from its normally closed position to its open position, and bringing material into the flow duct through the inlet port.
    [0010]
    10. Distribution pump according to claim 9, characterized by the fact that the base portion includes three or more equally spaced elastic ribs.
    [0011]
    Distribution pump according to either of claims 9 or 10, characterized in that the elastic ribs have a ramp outer edge (39A, 39B) with a smaller radius than the outer side wall of the cup spring at its upper end, and a radius greater than the outer side wall of the cup spring at its lower end.
    [0012]
    Distribution pump according to claim 9, characterized by the fact that the upper wall of the cup spring and the top wall of the guide structure have formations that inter-adjust in order to facilitate the guided movement of the cup spring.
    [0013]
    13. Distribution pump according to claim 10, characterized by the fact that the upper wall of the cup spring and the top wall of the guide structure have formations that inter-adjust in order to facilitate the guided movement of the cup spring.
    [0014]
    14. Distribution pump according to claim 11, characterized by the fact that the upper wall of the cup spring and the top wall of the guide structure have formations that inter-adjust in order to facilitate the guided movement of the cup spring.
    [0015]
    15. Distribution pump, according to claim 11, characterized by the fact that the upper wall of the cup spring and the top wall of the guide structure have formations that inter-adjust in order to facilitate the guided movement of the cup spring.
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    同族专利:
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    KR101452982B1|2013-05-21|2014-10-22|연우|Turning Ejection Bottle|US9937509B2|2014-01-13|2018-04-10|Silgan Dispensing Systems Corporation|Dispensing pump with skirt spring|
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    FR3048192B1|2016-02-25|2020-10-23|Albea Lacrost|PUMP FOR RECEPTACLE, IN PARTICULAR A BOTTLE OF COSMETIC PRODUCT, AND DISTRIBUTION DEVICE INCLUDING SUCH A PUMP|
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    WO2021034739A1|2019-08-19|2021-02-25|Silgan Dispensing Systems Corporation|Dispensing pump with polymer compression spring assemby|
    US10473176B2|2018-01-03|2019-11-12|Silgan Dispensing Systems Corporation|Compression spring assembly and methods of using the same|
    US11035429B2|2018-01-03|2021-06-15|Silgan Dispensing Systems Corporation|Compression spring assembly and methods of using the same|
    US10138971B1|2018-01-03|2018-11-27|Silgan Dispensing Systems Corporation|Dispensing pump with polymer compression spring assemby|
    US11236794B2|2018-01-03|2022-02-01|Silgan Dispensing Systems Corporation|Dispensing pump with polymer spring, base venting and flow baffle|
    US10794445B2|2018-01-03|2020-10-06|Silgan Dispensing Systems Corporation|Dispensing pump with polymer compression spring assembly|
    US10526191B1|2018-09-27|2020-01-07|Silgan Dispensing Systems Corporation|Dispensing tap and methods for using the same|
    CA3025843A1|2018-11-29|2020-05-29|Op-Hygiene Ip Gmbh|Valve retention under pressure|
    USD920805S1|2019-05-30|2021-06-01|Berlin Packaging, Llc|Container with pump actuator|
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    US10752412B1|2019-11-06|2020-08-25|Berlin Packaging, Llc|Child resistant container with pump actuator|
    WO2021239991A1|2020-05-29|2021-12-02|Promens Sa|Pump for dispensing a fluid|
    法律状态:
    2020-04-28| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2020-11-24| B09A| Decision: intention to grant|
    2021-01-26| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 31/12/2014, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US201461926490P| true| 2014-01-13|2014-01-13|
    US61/926,490|2014-01-13|
    PCT/US2014/072926|WO2015105715A1|2014-01-13|2014-12-31|Dispensing pump with cup spring|
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