US3486663A - Elastomeric pump and check-valve - Google Patents

Elastomeric pump and check-valve Download PDF

Info

Publication number
US3486663A
US3486663A US764685*A US3486663DA US3486663A US 3486663 A US3486663 A US 3486663A US 3486663D A US3486663D A US 3486663DA US 3486663 A US3486663 A US 3486663A
Authority
US
United States
Prior art keywords
partition
compartment
edge
elastomeric member
partitions
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
US764685*A
Other languages
English (en)
Inventor
Frederick Harold Humphrey
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3486663A publication Critical patent/US3486663A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/14—Pumps characterised by muscle-power operation
    • 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
    • B05B11/1028—Pumps having a pumping chamber with a deformable wall
    • B05B11/1032—Pumps having a pumping chamber with a deformable wall actuated 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
    • B05B11/1028—Pumps having a pumping chamber with a deformable wall
    • B05B11/1033—Pumps having a pumping chamber with a deformable wall the deformable wall, the inlet and outlet valve elements being integrally formed, e.g. moulded
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/0009—Special features
    • F04B43/0054—Special features particularities of the flexible members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/0009—Special features
    • F04B43/0054—Special features particularities of the flexible members
    • F04B43/0063—Special features particularities of the flexible members bell-shaped flexible members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L21/00—Joints with sleeve or socket

Definitions

  • the first disadvantage of conventional pumping mechanisms is an economic one. Because of the large number of parts that are required for the pumping mechanism, they are comparatively expensive to manufacture.
  • Certain conventional pumping mechanisms are capable of pumping liquids, but not gases.
  • Yet a further object of this invention is to provide a pressure-operated pump in which the risk of clogging by solid particles is substantially reduced, and in which most instances of valve blockage by foreign material can be overcome by an increase in operating pressure.
  • Yet another object of this invention is to provide a pressure-operated pump which can be designed for easy opening to permit cleaning or inspection access to the valve surfaces.
  • a further object of this invention is to provide a pressure-operated pump which can function in any position relative to the force of gravity.
  • Yet a further object of this invention is to provide an entirely glandless construction for a pressure-operated pump.
  • the pressure-operated pump of this invention also is capable of functioning as a check-valve, it is a separate object of this invention to provide a check-valve construction alone, which is not capable of acting as a pressure-operated pump. All but the second of the objects listed above for the pressure-operated pump apply equally well, mutatis mutandis, to the check-valve construction.
  • the pump and check-valve of this invention are capable of use with either liquids or gases, with substantially leak-free characteristics, and for this reason the term fluid will be generally used in the remainder of this specification to describe the medium passing through the pump or check-valve.
  • the pump of this invention is particularly suitable for dispensing small quantities of fluid, its use is not restricted to small applications. It will be apparent from the description that follows that the pump of this invention can be built to any size requirement, limited only by the physical characteristics of the material from which the pump is made.
  • this invention provides a check-valve comprising: a base member having a surface through which two ports open, and an integral elastomeric member which includes a recessed portion having a peripheral rim seated against said surface to define therewith a closed chamber communicating with said two ports, a partition in said recessed portion and integral therewith, said partition having an edge resting resiliently against the surface of said base member between said ports, thereby dividing said chamber into two compartments, each communicating with one port, said partition being in sloping relationship with every line which is (a) tangent to said surface where the latter contacts said edge, and (b) normal to said edge.
  • This invention further provides an integral elastomeric member for use in combination with a base member having a surface through which two ports open, the elastomeric member comprising: a recessed portion having a peripheral rim adapted to seal said recessed portion against said surface to define therewith a closed chamber communicating with said two ports, said recessed portion having a first partition and a second partition, each partition having an edge adapted to rest resiliently against the surface of said base member between said ports, thereby to divide said chamber into: a first compartment containing one port and defined by said first partition, a second compartment containing the other port and defined by said second partition, and a third compartment defined between said first partition and said second partition, said first partition defining an acute angle with every line in said third compartment which is (a) tangent to said surface where the latter contact the edge of the first partition, and (b) normal to the edge of the first partition, said second partition defining an acute angle with every line in said second compartment which is (a) tangent to said surface where the latter contacts the edge of the second partition
  • FIGURE 1 is a perspective view of a check-valve incorporating the first embodiment of this invention
  • FIGURE 2 is an axial sectional view of the checkvalve of FIGURE 1;
  • FIGURE 3 is a perspective view of a pump incorporating the second embodiment of this invention.
  • FIGURE 4 is a sectional view of the pump of FIG- URE 3;
  • FIGURES 5 and 6 are sectional views similar to FIG- URE 4, showing two phases in the operation of the pump;
  • FIGURE 7 is a perspective view, from underneath, of a pump incorporating the third embodiment of this invention.
  • FIGURE 8 is a view from beneath of a fourth embodiment of this invention.
  • FIGURE 9 is a vertical, longitudinal sectional view of the fourth embodiment.
  • FIGURE 10 is a vertical sectional view of a container cap assembly incorporating the fourth embodiment of this invention.
  • a check-valve indicated generally at 10 consists of a cylindrical base 11 having an inlet passage 12 and an outlet passage 13, both parallel with the axis of the cylindrical base 11.
  • the upper surface 14 of the cylindrical base 11 thus has two ports, a first port 16 communicating with the inlet pasage 12, and a second port 18 communicating with the outlet passage 13.
  • Tubes 19 can be provided for passages 12 and 13 as shown.
  • An integral elastomeric member 20 includes a recessed portion 22 having a peripheral rim 23 which seals the recessed portion 22 against the surface 14 to define therewith a closed chamber 24 communicating with the two ports 16 and 18.
  • the recessed portion 22 has a partition 26 of which the edge 28 is adapted to rest resiliently against the surface 14 between the two ports 16 and 18, thereby to divide the chamber 24 into two compartments, a first compartment 30 communicating with the port 16, and a second compartment 32 communicating with the port 18. It will be observed that the partition 26 is substantially planar, and is in sloping relation to the surface 14.
  • the contour of the surface 14 is only important in the immediate area where it contacts the edge 28 of the partition 26.
  • the contour of the surface 14 within the two compartments 30 and 32 has no effect on the function of the check-valve 10.
  • the partition be in sloping relationship with every line which is (a) tangent to the surface 14 where the latter contacts the edge 28-, and (b) normal to the edge 28.
  • all dihedral angles between the partition 26 and the hypothetical surface which is tangent to the surface 14 along the line of contact between the partition 26 and the surface 14 must be acute on one side of the partition.
  • the partition 26 shown in FIGURES 1 and 2 is substantially planar, this is not essential to the proper functioning of the check-valve. Some departure from the planar characteristic is permissible without impeding function, and it will be shown presently in connection with the pump embodiment that a particular curvature in the partition may have special advantages.
  • an integral outward flange 33 extends from the peripheral rim 23, the outer diameter of the flange 33 being the same as the diameter of the cylindrical base 11.
  • the flange 33 although not essential to this invention, is useful for the securing of the elastomeric member 20 to the surface 14, as for example by means of glue.
  • elastomeric used throughout this specification, is intended to include polymeric substances which exhibit suitable elastic resilience, and thus covers within its ambit natural and synthetic rubbers, and a large number of plastic materials having elastic properties. From the wide field of suitable elastomers, the following materials have been tested and found satisfactory as the material forming the integral elastomeric member for all four embodiments of this invention:
  • Plasticized PVC Ethyl vinyl acetate Styrene-butadiene rubber Butyl rubber Natural rubber Silicone rubber
  • the choice of a material for any given application would of course be governed by economic considerations, as well as by the performance criteria of the particular application and the solvent characteristics of the fluid being valved or pumped.
  • the elastomeric member 20 cooperates with the surface 14 to form a check-valve between the ports 16 and 18. Fluid can flow in the direction from port 16 to port 18, but cannot flow in the reverse direction. The reason for this is the slope of the partition 26. If the fluid pressure in compartment 30 rises above that in compartment 32, the fluid pressure will be exerted perpendicularly to the partition 26, and this pressure will be so directed as to lift the lower edge of the partition 26 upwardly away from the surface 14, thereby allowing the fluid to pass from compartment 30 into compartment 32 beneath the edge 28.
  • the recessed portion 22 is substantially hemispherical, it will be appreciated that the proper functioning of the check-valve is not dependent upon a hemispherical shape, provided the outer wall is thick enough to resist ballooning deformation caused by high fluid pressure in compartment 32. With this proviso, the recessed portion 22 could have an elliptical or rectangular horizontal section, a rectangular vertical section, etc. However, if the hemisphere walls are thin enough to be deformed by fluid pressure, any shape other than a substantially hemispherical one may tend to deform in the direction of a hemisphere under high fluid pressure, due to the ballooning effect. This deformation could have the result of lifting the partition 26 upwardly away from the surface 14, thereby breaking the back-pressure seal.
  • FIGURE 3 shows a pump attachment 36 for use with a container 37.
  • the pump attachment 36 includes a base member 38 which has a threaded female coupling 40 for engagement with the neck 42 of the container 37.
  • the base member 38 extends upwardly at an angle from the coupling 40, and the upwardly extending portion will hereinafter be called a tabular member 43.
  • the tabular member 43 has an upper, flat, oblique surface 44 from which an aperture 45 extends through the tabular member 43.
  • the base member also has a passage 46 communicating the surface 44 with the interior of the coupling 40.
  • a tube 48 communicates with the passage 46 and extends downwardly therefrom into the container 37.
  • An integral elastomeric member 50 is provided, having a recessed portion 51 in sealed engagement with the surface 44 to define therewith a closed chamber communicating with the aperture '45 and the passage 46.
  • the recessed portion 51 contains two partitions 53 and 54 which divide the chamber defined by the recessed portion 51 into a first compartment 56 communicating with the aperture 45, a second compartment 58 communicating with the passage 46, and a third compartment 60 between the partitions 53 and 54 and intermediate the first and second compartments 56 and 58.
  • Each partition 53 and 54 has an edge 61 and 62, respectively, adapted to rest resiliently against the surface 44. Both partitions 53 and 54 slope in the same direction with respect to the surface 44, the slope being such that the surface 44 within the first compartment 56 defines an obtuse angle 64 with the partition 53 defining the first compartment 56.
  • the partitions 53 and 54 shown in FIGURES 3, 4, 5 and 6 are substantially flat partitions.
  • the third compartment 60 has an upwardly protruding bubble 66, the purpose of which will now be explained with reference to FIGURES 5 and 6.
  • FIGURES 5 and 6 show two phases of the pumping action of the pump 36 when the latter is used with liquid. It will be appreciated from what follows that the pump shown in FIGURES 3-6 is also useful for pumping gases.
  • FIGURE 5 it is assumed that liquid has already been drawn up into the second compartment 58, but that it has not yet entered the third compartment 60.
  • FIG- URE 5 inward pressure has been applied to the bubble 66 as shown by the arrow. As a result, the bubble 66 is inverted into the third compartment 60, thereby decreasing the volume of the latter, and increasing the pressure of the air contained in the compartment.
  • the increased air pressure in compartment 60 urges the edge 62 of the partition 54 tightly against the surface 44, and causes the edge 61 of the partition 53 to be raised away from the surface 44, permitting air to pass from the compartment 60 into the compartment 56, and thence out the aperture 45.
  • inward pressure on the bubble 66 is released, it returns to its outward position as shown by the arrow in FIGURE 6.
  • the outward movement of the bubble 66 causes the volume of the compartment 60 to increase, thereby lowering the pressure in compartment 60 with respect to the compartments 56 and 58, and this causes the edge 62 of the partition 54 to be raised away from the surface 44 to allow liquid to pass from compartment 58 into compartment 60, and causes the edge 61 of the partition 53 to be urged firmly against the surface 44.
  • FIGURE 7 in which is illustrated the third embodiment of this invention, incorporating a different shape for partitions 53 and 54.
  • the partitions 53 and 54 in FIGURE 7 are sloped to the same degree as those in FIGURE 3, but instead of being substantially flat, they are curved, preferably in a substantially cylindrical shape.
  • the intersections between the partitions in FIGURE 7 and hypothetical planes normal to the surface 44 and parallel with the long dimension of the elastomeric member 50 are sloped and substantially rectilinear, while the intersections between the partitions and hypothetical planes parallel with the surface 44 are curved, the centres of curvature of the last-mentioned intersections lying on the same side of each partition as the compartment in which the angle between that partition and the surface 44 is obtuse.
  • the reason for the curved shape of the partitions shown in FIGURE 7 is as follows.
  • the partitions are planar, the passage of fluid therebeneath requires that the partitions be stretched as well as flexed, since the partitions are integral with the sides of the recessed portion 51, and the lower edges of the latter are secured to the surface 44.
  • the flexed shape of a curved partition is shown in partition 53 in FIGURE 7. It will be observed that the central portion of the partition adjacent the edge is, in a sense, inverted, allowing the edge to be displaced a considerable distance from the surface 44 without the restraint which would arise from stretching if the partition were planar as in FIGURE 3.
  • the bubble 66 is not essential to the operation of the pump.
  • the pump shown in FIGURES 36 would work if the integral elastomeric member 51 had a constant cross-sectional profile without the bubble 66, provided that inward pressure above the compartment 60 would cause the volume of the latter to decrease. Provision of the bubble, however, permits a considerable volume change in compartment 60, and therefore permits a greater pumping rate.
  • the surface 44 be substantially flat, this is not an essential characteristic of the invention. Firstly, the contour of the surface 44 is only important in the immediate area where it contacts the edges 61 and 62 of the partitions 53 and 54. Secondly, the contour in these immediate areas may depart from a plane to some extent without disrupting the function of the pump. For example, the surface 44 may be spherical or cylindrical, concave or convex, in the immediate areas where it contacts the edges 61 and 62.
  • the contour of the surface 44 within compartments 56, 58 and 60 has no effect on the operation of the partitions 53 and 541 Regardless of whether the surface 44 in the areas immediately adjacent the edges 61 and 62 is a plane surface or a curved surface, it is considered that the proper functioning of the pump shown in FIGURES 37 requires that the first partition 53 define an acute angle with every line in the third compartment 60 which is (a) tangent to the surface 44 where the latter contacts the edge 61 of the first partition 53, and (b) normal to the edge 61 of the first partition 53, and also requires that the second partition 54 define an acute angle with every line in the second compartment 58 which is (a) tangent to the surface 44 where the latter contacts the edge 62 of the second partition 54, and (b) normal to the edge 62 of the-second partition 54.
  • FIGURES 8, 9 and 10 show the fourth embodiment of this invention, which differs in minor ways from the second embodiment shown in FIGURES 3-6.
  • FIGURE 9 is a sectional view
  • FIGURE 8 is a view from underneath, of an elastomeric member 70 which is roughly eliptical in plan, and humped, or blister-like, in profile and in vertical section.
  • a recessed portion 71 has a peripheral rim 72 which is adapted to seal the recessed portion 71 against a surface 74 of a tabular member 75 (FIGURE 10*).
  • an integral bead 77 protrudes from the lower surface of the rim 72 as best seen in FIGURE 9.
  • a first partition 78 and a second partition 80 are provided to fill the same functions as their counterparts 53 and 54 in the second embodiment shown in FIGURES 3-6.
  • the closed chamber 82 defined between the surface 74 and the recessed portion 70 is divided by the partitions 78 and 80 into a first compartment 84, a second compartment 85, and a third compartment 86.
  • the tabular member 75 has a first port 88 adapted to open into the first compartment 84, and a second port 90 adapted to open into the second compartment 85.
  • the tabular member 75 has a protruding portion 92 upon which is fitted a nozzle cap 93 having a nozzle 94.
  • the nozzle 94 communicates with the port 88 as shown in FIGURE 10.
  • the port 90 communicates with a vertical tube 96 adapted to extend downwardly into a container having a threaded neck to which a screw-cap 98 can be screwed.
  • the screwcap 98 is integral with the tabular member 75.
  • a frusto-conical cap 100 is adapted to fit tightly over the entire assembly and has ledge surfaces 102 adapted to urge the rim 72 of the elastomeric member 70 against the surface 74.
  • the cap 100 also has an opening 104 to allow passage therethrough of the protruding portion 92 of the tabular member 75, and a roughly circular opening 106 through which a portion of the elastomeric member 70 protrudes, as shown in FIGURE 10.
  • Around the base of the cap 100 is a rim 107 which is adapted for a snapfit around the periphery of an integral disc-like, horizontal plate portion 108 forming a part of the tabular member 75.
  • the partitions 78 and 80 define a large acute angle with the surface 74. Trials have shown that, provided the angle between a given partition and the surface remains acute, the actual value of the angle can be varied within wide limits.
  • the lower edges 110 and 111 of the partitions 78 and 80 respectively 'have a slope of approximately 30 in the same direction as the slope of each partition 78 and 80 (FIG- URE 9). The knife-edge seal thereby obtained between each partition and the surface 74 is believed to improve the efliciency and the resistance to leakage of the fourth embodiment.
  • the sloping bottom edges 110 and 111 of the partitions extend downwardly a distance equal to the depth of the bead 77.
  • the bead 77 is flattened to some degree and compressed upwardly into the material of the rim 72, which is why the bead 77 is not visible in FIGURE 10.
  • the lower edges 110 and 111 of the partitions 78 and 80 are urged positively against the surface 74, resulting in the slight curvature at the edges which is visible in FIGURE 10.
  • the first .and second differences detailed above can also be incorporated into the check-valve taught by this invention.
  • the check-valve could be provided with a bead similar to the bead 77 in FIGURE 9, and for the same purpose.
  • FIG- URE 10 an optional variation is shown in FIG- URE 10, whereby the surface of the tabular member 75 is designed in such a way that it extends upwardly into the third compartment 86, as shown by the dotted-line profile 133 in FIGURE 10.
  • the profile 113 has a concave or dished central portion 115 which conforms ap proximately to the shape of the inverted wall of the elastomeric member when thumb or finger pressure has been applied from the outside.
  • the reason for the provision of the upstanding profile 113 is to avoid the necessity of repeated pumping depressions of the elastomeric member 70 in order to fill the third compartment 86 and begin spraying the liquid.
  • the pumping contour is not disturbed, and a volume reduction in the third compartment 86 can e achieved.
  • the partition When the acute angle is small, the partition is more diflicult to mould, but there is the advantage of requiring a smaller pressure differential to open the partition to permit fluid to flow.
  • the thickness of the partition With regard to the thickness of the partition, it will be obvious that the less the thickness, the less stiff is the partition, hence a smaller presure differential is required to open the partition. Also, by reducing the thickness of the partitions, an economy of material is effected. If the partitions are made thicker, a larger pressure difference is required to activate or open them. Thicker partitions can be of adavntage in applications where it is desired completely to eliminate trickling in either direction when the partition is intended to be closed. The provision of thicker, more rigid partitions permits constructions wherein a threshold opening pressure diflFerential is required. In other words, the pressure differential in the forward r opening direction must rise above a certain minimum or threshold pressure before the partition will be lifted away from the surface to permit fluid to flow.
  • the two partitions of the pump embodiments it is not essential for the two partitions of the pump embodiments to be either identical or parallel.
  • the acute angles defined between each partition and the surface need not be identical for the two partitions.
  • the two partitions it is possible for the two partitions to have different contours: for example, one could be curved as in FIGURE 7, and the other could be fiat as in FIGURE 3.
  • the lines along which the bottom edges of the partitions contact the surface need not be parallel or congruent.
  • the lines of contact for the edges of two flat partitions could be angled to one another, e.g. at right angles.
  • a fluid-handling device including a check-valve comprising:
  • a base member having a surface through which two ports open
  • an integral elastomeric member which includes a recessed portion having a peripheral rim seated against said surface to define therewith a closed chamber communicating with said two ports,
  • a partition in said recessed portion and integral therewith, said partition having an edge resting resiliently across and against the surface of said base member between said ports, thereby dividing said chamber into a first compartment and a second compartment, each compartment communicating with one port, said partition defining an acute angle with every line in said second compartment which is (a) tangent to said surface where the latter contacts said edge, and (b) normal to said edge, said partition being attached throughout its periphery except said edge to the elastomeric member, whereby the inherent resistance to stretching in the material of the partition will cause the edge to resist being moved toward said second compartment.
  • a fluid-handling device is claimed in claim 1, in which the surface of said base member is a substantially fiat surface.
  • a fluid-handling device as claimed in claim 1 in which the edge of said partition is sloped in the same direction as the partition itself, thereby to provide a knifeedge seal between the two compartments.
  • An integral elastomeric member for use in combination with a base member having a surface through which two ports open, the elastomeric member comprisa recessed portion having a peripheral rim adapted to seal said recessed portion against said surface to define therewith a closed chamber communicating with said two ports,
  • said recessed portion having a partition which has an edge adapted to rest resiliently across and against the surface of the base member between the ports, thereby to divide said chamber into a first compartment and a second compartment, each compartment communicating with one port, said partition defining an 1 acute angle with every line in said second compartment which is (a) tangent to said surface where the latter contacts said edge, and (b) normal to said edge, said partition being attached throughout its periphery except said edge to the elastomeric member, whereby the inherent resistance to stretching in the material of the partition will cause the edge to resist being moved toward said second compartment.
  • An integral elastomeric member for use in combination .with a base member having a surface through which two ports open, the elastomeric member comprisa recessed portion having a peripheral rim adapted to seal said recessed portion against said surface to define therewith a closed chamber communicating with said two ports;
  • said recessed portion having a first partition and a second partition; each partition having an edge adapted to rest resiliently across and against the surface of said base member between said ports, thereby to divide said chamber into: a first compartment containing one port and defined by said first partition, a second compartment containing the other port and defined by said second partition, and a third compartment defined between said first partition and said second partition said first partition defining an acute angle with every line in said third compartment which is (a) tangent to said surface where the latter contacts the edge of the first partition, and (b) normal to the edge of the first partition; said second partition defining an acute angle with every line in said second compartment which is (a) tangent to said surface where the latter contacts the edge of the second partition, and (b) normal to the edge of the second partition, each partition being attached throughout its periphery except its edge to the elastomeric member, whereby the inherent resistance to stretching in the material of the partitions will cause each edge to resist being moved toward the compartment in which its respective partition defines an acute angle with the surface.
  • a finger pump comprising:
  • a base member having a coupling for engagement with the open top of the container, and a tabular member extending from said coupling, the tabular member having a surface through which open a first port and a second port, a first passage communicating said first port with a nozzle, a second passage communicating said second port with a nozzle, a second,
  • said recessed portion having a first partition and a second partition; each partition having an edge adapted to rest resiliently across and against said surface between said ports, thereby to divide said chamber into: a first compartment containing one port and defined by said first partition, a second compartment containing the other port and defined by said second partition, and a third compartment defined between said first partition and said second partition; said first partition defining an acute angle with every line in said third compartment which is (a) tangent to said surface where the latter contacts the edge of the first partition, and (b) normal to the edge of the first partition; said second partition defining an acute angle with every line in said second compartment which is (a) tangent to said surface where the latter contacts the edge of the second partition, and (b) normal to the edge of the second partition, each partition being attached throughout its periphery except its edge to the elastomeric member, whereby the inherent resistance to stretching in the material of the partitions will cause each edge to resist being moved toward the compartment in which its respective partition defines an acute angle with the surface.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Reciprocating Pumps (AREA)
  • Check Valves (AREA)
US764685*A 1967-11-16 1968-07-17 Elastomeric pump and check-valve Expired - Lifetime US3486663A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US68373167A 1967-11-16 1967-11-16
US76468568A 1968-07-17 1968-07-17

Publications (1)

Publication Number Publication Date
US3486663A true US3486663A (en) 1969-12-30

Family

ID=27103179

Family Applications (1)

Application Number Title Priority Date Filing Date
US764685*A Expired - Lifetime US3486663A (en) 1967-11-16 1968-07-17 Elastomeric pump and check-valve

Country Status (12)

Country Link
US (1) US3486663A (no)
AT (1) AT284633B (no)
BE (1) BE723839A (no)
CH (1) CH503938A (no)
DE (1) DE1807083C3 (no)
FR (1) FR1591925A (no)
GB (1) GB1220980A (no)
IE (1) IE33128B1 (no)
IL (1) IL31034A (no)
NL (1) NL6813297A (no)
NO (1) NO123602B (no)
SE (1) SE344999B (no)

Cited By (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3561648A (en) * 1969-04-09 1971-02-09 Frederick Harold Humphrey Resilient integral bodies incorporating poppet-valves
US3648902A (en) * 1969-05-05 1972-03-14 Frederick Harold Humphrey Blow-molded pump-type dispenser
US3715060A (en) * 1969-07-28 1973-02-06 Perpedos Ab Dispensing apparatus
US3726442A (en) * 1971-02-17 1973-04-10 Polypump Curacao Nv Trigger pump and breather valve dispensing assembly
US3948420A (en) * 1974-12-24 1976-04-06 Polypump Limited Elastomeric pumps
US3995776A (en) * 1975-09-16 1976-12-07 Leeds And Micallef Direct finger actuated pump
US4115042A (en) * 1977-01-21 1978-09-19 Mattel, Inc. Single flow direction miniature pump
US4135647A (en) * 1977-09-21 1979-01-23 The Continental Group, Inc. Motor driven dispensing unit for containers
US4149633A (en) * 1974-04-26 1979-04-17 Kenova Ab Two-chamber package
US4155487A (en) * 1977-09-09 1979-05-22 Blake William S Trigger sprayer
US4222501A (en) * 1978-07-24 1980-09-16 James D. Pauls And J. Claybrook Lewis And Associates, Limited Dual chamber, continuous action dispenser
DE3033392A1 (de) * 1980-09-05 1982-04-29 Pfeiffer Kunststofftechnik GmbH & Co KG, 7760 Radolfzell Vorrichtung zur ausgabe von pasteusen oder breiigen medien
US4352443A (en) * 1980-06-24 1982-10-05 U.S. Cap & Closure, Inc. Dispenser having a trigger-bulb pump
US4651904A (en) * 1983-12-02 1987-03-24 Bramlage Gesellschaft Mit Beschrankter Haftung Dispenser for pasty compositions, particularly toothpaste dispenser
US4804115A (en) * 1987-04-29 1989-02-14 Metal Box P.L.C. Pump chamber dispenser
US4830229A (en) * 1986-07-16 1989-05-16 Metal Box P.L.C. Pump chamber dispenser
US5074765A (en) * 1990-04-13 1991-12-24 Dielectrics Industries Elastomeric air pump
WO1996032336A1 (en) * 1995-04-10 1996-10-17 Invental Laboratory, Inc. Easily-cleaned reusable lid including an evacuating pump
US5638994A (en) * 1995-09-21 1997-06-17 Jeffrey M. Libit Molded bottle with trigger bulb pump
USD386558S (en) * 1996-06-07 1997-11-18 Dielectrics Industries Hand pump for an inflatable structure
US5871126A (en) * 1996-01-22 1999-02-16 Chesebrough-Pond's Usa Co., Division Of Conopco, Inc. Pump dispenser
US5875936A (en) * 1996-01-22 1999-03-02 Chesebrough-Pond's Usa Co., Division Of Conopco, Inc. Refillable pump dispenser and refill cartridge
US6491233B2 (en) 2000-12-22 2002-12-10 Chrysalis Technologies Incorporated Vapor driven aerosol generator and method of use thereof
US6501052B2 (en) 2000-12-22 2002-12-31 Chrysalis Technologies Incorporated Aerosol generator having multiple heating zones and methods of use thereof
US6516796B1 (en) 1998-10-14 2003-02-11 Chrysalis Technologies Incorporated Aerosol generator and methods of making and using an aerosol generator
US6568390B2 (en) 2001-09-21 2003-05-27 Chrysalis Technologies Incorporated Dual capillary fluid vaporizing device
US20030108342A1 (en) * 2001-12-06 2003-06-12 Sherwood Timothy S. Aerosol generator having heater arranged to vaporize fluid in fluid passage between bonded layers of laminate
US6640050B2 (en) 2001-09-21 2003-10-28 Chrysalis Technologies Incorporated Fluid vaporizing device having controlled temperature profile heater/capillary tube
US6681769B2 (en) 2001-12-06 2004-01-27 Crysalis Technologies Incorporated Aerosol generator having a multiple path heater arrangement and method of use thereof
US6681998B2 (en) 2000-12-22 2004-01-27 Chrysalis Technologies Incorporated Aerosol generator having inductive heater and method of use thereof
US20040025865A1 (en) * 2002-05-10 2004-02-12 Nichols Walter A. Aerosol generator for drug formulation and methods of generating aerosol
US6701922B2 (en) 2001-12-20 2004-03-09 Chrysalis Technologies Incorporated Mouthpiece entrainment airflow control for aerosol generators
US6701921B2 (en) 2000-12-22 2004-03-09 Chrysalis Technologies Incorporated Aerosol generator having heater in multilayered composite and method of use thereof
US6799572B2 (en) 2000-12-22 2004-10-05 Chrysalis Technologies Incorporated Disposable aerosol generator system and methods for administering the aerosol
US6883516B2 (en) 2000-04-27 2005-04-26 Chrysalis Technologies Incorporated Method for generating an aerosol with a predetermined and/or substantially monodispersed particle size distribution
US7077130B2 (en) 2000-12-22 2006-07-18 Chrysalis Technologies Incorporated Disposable inhaler system
US7128067B2 (en) 2000-04-27 2006-10-31 Philip Morris Usa Inc. Method and apparatus for generating an aerosol
US7367334B2 (en) 2003-08-27 2008-05-06 Philip Morris Usa Inc. Fluid vaporizing device having controlled temperature profile heater/capillary tube
US20090302064A1 (en) * 2008-06-10 2009-12-10 Marcel Lavabre Elastomeric dispensing pump that can be made with as few as two components
US20100022971A1 (en) * 2008-02-05 2010-01-28 Marx Alvin J Precision lid retracting eyedropper device
US20100032451A1 (en) * 2005-12-01 2010-02-11 Reinhard Neuhaus Delivery Device With a Reinforced Flexible Wall
US20100139431A1 (en) * 2008-12-05 2010-06-10 Kia Motors Corporation Scissors gear
US20100286634A1 (en) * 2008-02-05 2010-11-11 Marx Alvin J Automated Eyedrop Delivery System with Eyelid Retracting Legs
US20100286633A1 (en) * 2008-02-05 2010-11-11 Marx Alvin J Precision Lid Retracting Eyedropper Device
CN102849323A (zh) * 2012-10-16 2013-01-02 张联 一种液体泵装置
US20150052855A1 (en) * 2012-03-16 2015-02-26 Boru International Co., Ltd. Vacuum apparatus
US20160214126A1 (en) * 2015-01-22 2016-07-28 Gojo Industries, Inc. Vented pump
EP3417948A1 (fr) * 2017-06-22 2018-12-26 Albéa Services Pompe moulée pour la distribution d'un produit fluidique
US20190308152A1 (en) * 2018-04-09 2019-10-10 Craig Technical Consulting, Inc. High-load vacuum chamber motion feedthrough systems and methods

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3995774A (en) * 1975-09-12 1976-12-07 Diamond International Corporation Liquid dispenser having deformable diaphragm type pump
GB1521836A (en) * 1975-09-16 1978-08-16 Leeds & Micallef Manually operable triggerless pump
SE9002045L (sv) * 1990-06-07 1992-01-07 Astra Tech Ab Klaffventilanordning
DE102014204831B4 (de) 2014-03-14 2020-06-18 Aptar Radolfzell Gmbh Austragkopf für einen Spender, Spender mit Austragkopfund Verfahren zur Herstellung eines Austragkopfes

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2219604A (en) * 1939-11-20 1940-10-29 George C Trotter Dispensing device
US2715236A (en) * 1953-04-07 1955-08-16 Tereno Jack Liquid ejector and applicator
US3013502A (en) * 1960-05-13 1961-12-19 Standard Oil Co Peristaltic pumping device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2219604A (en) * 1939-11-20 1940-10-29 George C Trotter Dispensing device
US2715236A (en) * 1953-04-07 1955-08-16 Tereno Jack Liquid ejector and applicator
US3013502A (en) * 1960-05-13 1961-12-19 Standard Oil Co Peristaltic pumping device

Cited By (70)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3561648A (en) * 1969-04-09 1971-02-09 Frederick Harold Humphrey Resilient integral bodies incorporating poppet-valves
US3648902A (en) * 1969-05-05 1972-03-14 Frederick Harold Humphrey Blow-molded pump-type dispenser
US3715060A (en) * 1969-07-28 1973-02-06 Perpedos Ab Dispensing apparatus
US3726442A (en) * 1971-02-17 1973-04-10 Polypump Curacao Nv Trigger pump and breather valve dispensing assembly
US4149633A (en) * 1974-04-26 1979-04-17 Kenova Ab Two-chamber package
US3948420A (en) * 1974-12-24 1976-04-06 Polypump Limited Elastomeric pumps
US3995776A (en) * 1975-09-16 1976-12-07 Leeds And Micallef Direct finger actuated pump
US4115042A (en) * 1977-01-21 1978-09-19 Mattel, Inc. Single flow direction miniature pump
US4155487A (en) * 1977-09-09 1979-05-22 Blake William S Trigger sprayer
US4135647A (en) * 1977-09-21 1979-01-23 The Continental Group, Inc. Motor driven dispensing unit for containers
US4222501A (en) * 1978-07-24 1980-09-16 James D. Pauls And J. Claybrook Lewis And Associates, Limited Dual chamber, continuous action dispenser
US4352443A (en) * 1980-06-24 1982-10-05 U.S. Cap & Closure, Inc. Dispenser having a trigger-bulb pump
DE3033392A1 (de) * 1980-09-05 1982-04-29 Pfeiffer Kunststofftechnik GmbH & Co KG, 7760 Radolfzell Vorrichtung zur ausgabe von pasteusen oder breiigen medien
US4651904A (en) * 1983-12-02 1987-03-24 Bramlage Gesellschaft Mit Beschrankter Haftung Dispenser for pasty compositions, particularly toothpaste dispenser
US4830229A (en) * 1986-07-16 1989-05-16 Metal Box P.L.C. Pump chamber dispenser
US4804115A (en) * 1987-04-29 1989-02-14 Metal Box P.L.C. Pump chamber dispenser
US5074765A (en) * 1990-04-13 1991-12-24 Dielectrics Industries Elastomeric air pump
WO1996032336A1 (en) * 1995-04-10 1996-10-17 Invental Laboratory, Inc. Easily-cleaned reusable lid including an evacuating pump
US5638994A (en) * 1995-09-21 1997-06-17 Jeffrey M. Libit Molded bottle with trigger bulb pump
US5871126A (en) * 1996-01-22 1999-02-16 Chesebrough-Pond's Usa Co., Division Of Conopco, Inc. Pump dispenser
US5875936A (en) * 1996-01-22 1999-03-02 Chesebrough-Pond's Usa Co., Division Of Conopco, Inc. Refillable pump dispenser and refill cartridge
USD386558S (en) * 1996-06-07 1997-11-18 Dielectrics Industries Hand pump for an inflatable structure
US7117867B2 (en) 1998-10-14 2006-10-10 Philip Morris Usa Aerosol generator and methods of making and using an aerosol generator
US6516796B1 (en) 1998-10-14 2003-02-11 Chrysalis Technologies Incorporated Aerosol generator and methods of making and using an aerosol generator
US6557552B1 (en) 1998-10-14 2003-05-06 Chrysalis Technologies Incorporated Aerosol generator and methods of making and using an aerosol generator
US7128067B2 (en) 2000-04-27 2006-10-31 Philip Morris Usa Inc. Method and apparatus for generating an aerosol
US6883516B2 (en) 2000-04-27 2005-04-26 Chrysalis Technologies Incorporated Method for generating an aerosol with a predetermined and/or substantially monodispersed particle size distribution
US6799572B2 (en) 2000-12-22 2004-10-05 Chrysalis Technologies Incorporated Disposable aerosol generator system and methods for administering the aerosol
US7077130B2 (en) 2000-12-22 2006-07-18 Chrysalis Technologies Incorporated Disposable inhaler system
US7373938B2 (en) 2000-12-22 2008-05-20 Philip Morris Usa Inc. Disposable aerosol generator system and methods for administering the aerosol
US6681998B2 (en) 2000-12-22 2004-01-27 Chrysalis Technologies Incorporated Aerosol generator having inductive heater and method of use thereof
US7173222B2 (en) 2000-12-22 2007-02-06 Philip Morris Usa Inc. Aerosol generator having temperature controlled heating zone and method of use thereof
US7163014B2 (en) 2000-12-22 2007-01-16 Philip Morris Usa Inc. Disposable inhaler system
US6701921B2 (en) 2000-12-22 2004-03-09 Chrysalis Technologies Incorporated Aerosol generator having heater in multilayered composite and method of use thereof
US6491233B2 (en) 2000-12-22 2002-12-10 Chrysalis Technologies Incorporated Vapor driven aerosol generator and method of use thereof
US6501052B2 (en) 2000-12-22 2002-12-31 Chrysalis Technologies Incorporated Aerosol generator having multiple heating zones and methods of use thereof
US6715487B2 (en) 2001-09-21 2004-04-06 Chrysalis Technologies Incorporated Dual capillary fluid vaporizing device
US6640050B2 (en) 2001-09-21 2003-10-28 Chrysalis Technologies Incorporated Fluid vaporizing device having controlled temperature profile heater/capillary tube
US6568390B2 (en) 2001-09-21 2003-05-27 Chrysalis Technologies Incorporated Dual capillary fluid vaporizing device
US6804458B2 (en) 2001-12-06 2004-10-12 Chrysalis Technologies Incorporated Aerosol generator having heater arranged to vaporize fluid in fluid passage between bonded layers of laminate
US20030108342A1 (en) * 2001-12-06 2003-06-12 Sherwood Timothy S. Aerosol generator having heater arranged to vaporize fluid in fluid passage between bonded layers of laminate
US6681769B2 (en) 2001-12-06 2004-01-27 Crysalis Technologies Incorporated Aerosol generator having a multiple path heater arrangement and method of use thereof
US6701922B2 (en) 2001-12-20 2004-03-09 Chrysalis Technologies Incorporated Mouthpiece entrainment airflow control for aerosol generators
US6854461B2 (en) 2002-05-10 2005-02-15 Philip Morris Usa Inc. Aerosol generator for drug formulation and methods of generating aerosol
US20040025865A1 (en) * 2002-05-10 2004-02-12 Nichols Walter A. Aerosol generator for drug formulation and methods of generating aerosol
US7367334B2 (en) 2003-08-27 2008-05-06 Philip Morris Usa Inc. Fluid vaporizing device having controlled temperature profile heater/capillary tube
US20100032451A1 (en) * 2005-12-01 2010-02-11 Reinhard Neuhaus Delivery Device With a Reinforced Flexible Wall
US20100286634A1 (en) * 2008-02-05 2010-11-11 Marx Alvin J Automated Eyedrop Delivery System with Eyelid Retracting Legs
US20100286633A1 (en) * 2008-02-05 2010-11-11 Marx Alvin J Precision Lid Retracting Eyedropper Device
US8246589B2 (en) * 2008-02-05 2012-08-21 Marx Alvin J Precision lid retracting eyedropper device
US20100022971A1 (en) * 2008-02-05 2010-01-28 Marx Alvin J Precision lid retracting eyedropper device
US9610192B2 (en) 2008-02-05 2017-04-04 Alvin J. Marx Automated incremental eyedrop delivery system with eyelid retracting legs
US8734408B2 (en) 2008-02-05 2014-05-27 Alvin J. Marx Automated eyedrop delivery system with eyelid retracting legs
US20090302064A1 (en) * 2008-06-10 2009-12-10 Marcel Lavabre Elastomeric dispensing pump that can be made with as few as two components
US20100139431A1 (en) * 2008-12-05 2010-06-10 Kia Motors Corporation Scissors gear
US8387480B2 (en) * 2008-12-05 2013-03-05 Kia Motors Corporation Scissors gear
US9549847B2 (en) 2010-03-11 2017-01-24 Alvin J. Marx Bandolier cartridge sterile eyedrop delivery system with eyelid retracting legs and eyedrop delivery confirmation
US9790933B2 (en) * 2012-03-16 2017-10-17 Boru International Co., Ltd. Vacuum apparatus
US20150052855A1 (en) * 2012-03-16 2015-02-26 Boru International Co., Ltd. Vacuum apparatus
CN102849323B (zh) * 2012-10-16 2015-02-18 崔明 一种液体泵装置
WO2014059698A1 (zh) * 2012-10-16 2014-04-24 崔明 一种液体泵装置
CN102849323A (zh) * 2012-10-16 2013-01-02 张联 一种液体泵装置
US20160214126A1 (en) * 2015-01-22 2016-07-28 Gojo Industries, Inc. Vented pump
US9833800B2 (en) * 2015-01-22 2017-12-05 Gojo Industries, Inc. Vented pump
EP3417948A1 (fr) * 2017-06-22 2018-12-26 Albéa Services Pompe moulée pour la distribution d'un produit fluidique
FR3067952A1 (fr) * 2017-06-22 2018-12-28 Albea Services Pompe moulee pour la distribution d'un produit fluidique
US10525492B2 (en) 2017-06-22 2020-01-07 Albea Services Molded pump for dispensing a fluid product
US20190308152A1 (en) * 2018-04-09 2019-10-10 Craig Technical Consulting, Inc. High-load vacuum chamber motion feedthrough systems and methods
US10919014B2 (en) * 2018-04-09 2021-02-16 Craig Technical Consulting, Inc. High-load vacuum chamber motion feedthrough systems and methods
US11511249B2 (en) 2018-04-09 2022-11-29 Sidus Space, Inc. High-load vacuum chamber motion feedthrough system and methods

Also Published As

Publication number Publication date
NL6813297A (no) 1969-05-20
DE1807083C3 (de) 1974-03-28
IE33128L (en) 1969-05-16
AT284633B (de) 1970-09-25
IL31034A0 (en) 1969-01-29
BE723839A (no) 1969-05-14
DE1807083B2 (de) 1973-09-06
SE344999B (no) 1972-05-08
IL31034A (en) 1971-11-29
GB1220980A (en) 1971-01-27
FR1591925A (no) 1970-05-04
NO123602B (no) 1971-12-13
CH503938A (fr) 1971-02-28
IE33128B1 (en) 1974-04-03
DE1807083A1 (de) 1969-10-16

Similar Documents

Publication Publication Date Title
US3486663A (en) Elastomeric pump and check-valve
US3507586A (en) Pump
US3527551A (en) Valve system for pump
US6951295B1 (en) Flow control element and dispensing structure incorporating same
US2855127A (en) Dispensing pump and check valve therefor
US11110473B2 (en) Foam pump sprayer
US6616016B2 (en) Closure with pressure-actuated valve and lid seal
US3130877A (en) Dispenser and valves for same
US4101057A (en) Trigger actuated pump
US7059501B2 (en) Valve mechanism for tube-type fluid container
US3162334A (en) Dispenser and valves for same
US4330071A (en) Dispensing device for discharging a liquid or pasty product from a container, containing such a product
AU686033B2 (en) Bellows pump dispenser
US4646945A (en) Vented discharge assembly for liquid soap dispenser
US7249694B2 (en) Valve mechanism for tube-type fluid container
US20200047204A1 (en) Pump dispensers
CA2165314C (en) Pump device with collapsible pump chamber having integral shipping seal
US3785532A (en) Dispensing pump
EP1791647B1 (en) Dispensing pump
US4347953A (en) Elastomer bulb dispensing pump
US2702147A (en) Fluid dispensing unit and pump
US4199083A (en) Trigger actuated pump
US3561648A (en) Resilient integral bodies incorporating poppet-valves
KR20200001048A (ko) 펌프 용기
CA3064689A1 (en) All plastic water resistant pump