This invention relates to liquid dispensing pumps for dispensing fluids without the use of aerosol propellants.
Hand operated pump dispensers are well known in the personal care industry for dispensing fluid products such as liquids and creams. Pumps of this type generally include a pump leading to a dip tube, which is inserted into the fluid reservoir. The actuator assembly is sealed air tight to the mouth of the reservoir. Typically, the actuator assembly includes a piston, a spring and an inner valve. This enables the definition of a dose of the fluid product expelled out of the container through the nozzle on each pressing or actuation of the pump. Prior art hand pumps typically include dispensing nozzles that extend from the actuator which require that they be packaged so as to prevent nozzle breakage during shipping. This limitation makes prior art pumps generally unsuitable for use in e-commerce where products are often shipped with no special packaging to prevent breakage.
The present invention provides a new hand pump design that utilizes a pump actuator equipped with a folding nozzle. The new hand pump is particularly suitable for use in e-commerce where the hand pump and a filled dispenser bottle are commonly shipped unboxed. The use of a pump actuator with a folding nozzle, in addition to eliminating the protrusion of a conventional nozzle, helps to prevent the pump actuator and closure from loosening and unlocking during shipping.
The ability of the hand pump to resist loosening and unlocking during shipping is enhanced by providing the hand pump with an actuator, a closure and a nozzle that are free of any sharp edges, surface discontinuities or protrusions that may catch on other containers or packaging during shipping. The ability of the hand pump to resist loosening and unlocking during shipping is further enhanced by configuring the nozzle such that it snaps into the actuator via a snap closure when in the folded position. The actuator nozzle is unfolded after the package is delivered and ready for use.
The folding nozzle equipped pump actuator forms part of a hand pump with incorporates a pump assembly comprising upper and lower pump bodies and a sliding collar which controls the inlet of fluid to be dispensed into fluid passages in the pump assembly and subsequently into the pump actuator. The hand pump further includes upper and lower check valves to prevent back flowing of the fluid to be dispensed into the dispenser bottle.
A feature of the hand pump 10 of the present invention is that when the nozzle is in the folded position, it can be used as an “eye mark” during the automated filling of fluid dispenser bottles and subsequent installation of hand pumps on the dispenser bottles. The nozzle may be used as an eye mark because it has a narrow rectangular shape that can be made in a contrasting color with respect to the pump actuator. The nozzle being of a contrasting color and having a narrow rectangular shape will appear as a vertical line to an optical sensor. Optical sensors are commonly used in automated filling and assembly equipment to fill fluid dispenser bottles and to install hand pumps on the dispenser bottles. The orientation of the nozzle may also be important when products are put on public display such as in retail stores, as retailers typically prefer that product containers of this type have a uniform appearance.
The eye mark formed by the nozzle of the present invention hand pump, may be used by automated equipment to position a hand pump in a desired position with respect to a filled dispenser bottle. A typical process is a follows: a dispenser bottle is filled with product on a conveyer belt. The hand pump is dropped on the bottle. The filled dispenser bottle along with the hand pump is lined up on the conveyer moving towards a capping device which grips a closure of the hand pump and rotates the closure such that internal threads in the closure engage external threads on the dispenser bottle and screws the closure and hence the hand pump to the dispenser bottle.
The inclusion of an Eye-Mark on the pump actuator assists the automated filling equipment in properly locating the hand pump on the dispenser bottle. The above and other advantages of the hand pump of the present invention will be described in more detail below.
The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments of the invention are shown. The invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Like numbers refer to like elements throughout.
Referring to
With continued reference to
With reference to
The lower pump body 20 includes the fluid passage 146, an upper portion 54 having a fluid outlet 54A and a lower portion 56 having fluid inlet holes 62 and a lower end 56A. The upper portion 54 includes a bulbous portion 58. The lower portion 56 includes a stop surface 144. The lower portion 56 also includes an exterior circular wall 64 and interior circular wall 66 forming a piston 70 therebetween. The piston 70 includes a cup-shaped spring seat 71 for the compression spring 24.
With reference to
With reference to
With reference to
With reference to
With particular reference to
The hand pump 10 of the present invention utilizing the actuator 12 with the folding nozzle 102 is particularly well-suited for use in e-commerce where the hand pump 10 and a filled dispenser bottle 166 are commonly shipped unboxed. The folding nozzle 102 of the actuator 12, in addition to eliminating the protrusion of a conventional nozzle contributes to the prevention of leakage from the hand pump 10 in the event the hand pump 10 and dispenser bottle 166 are inverted during shipping and further helps to prevent the actuator 12 from loosening during shipping.
Assembly of the hand pump 10 of the present invention will typically take place as follows. First, sliding collar 22 is placed on the upper pump body 18, i.e. the exterior wall 50 of the upper pump body 18 engages the upper circular channel 38 of the sliding collar 22 by sliding within the circular channel 38. Next, the upper portion 54 of the lower pump body 20 is pressed into the lower portion 42 of the upper pump body 18. The upper and lower pump bodies 18 and 20 are configured such that the bulbous section 58 of the lower pump body 20 is a press fit or snap fit inside the lower portion 42 of the upper pump body 18. Stop surface 61 of lower pump body 20 and fluid inlet 42A of the upper pump body 18 function to control the insertion depth of the lower pump body 20 into the upper pump body 18, i.e. when fluid inlet 42A abuts stop surface 61, insertion is complete.
Upon assembly of the upper and lower pump bodies 18 and 20 and the sliding collar 22, thus forming the pump body assembly 17, the sliding collar is free to slide up and down the pump bodies by the width of a gap 116.
Subsequently, the lower check ball 30 is inserted in the pump housing 26 along with the compression spring 24. After which the pump housing assembly 17 is inserted in the pump housing 26 such that the compression spring 26 seats in the spring seat 71 of the piston 70. Next, the closure 16 is placed over the open end 84 of the pump housing 26 such that the engagement surface 128 of the closure 16 abuts the engagement surface 118 (see
Subsequently, the chaplet 14 is inserted into the pump housing 26 and pressed into place. That is, the generally circular body portion 91 of the chaplet 14 is pressed or snapped into the open end 84 of the pump housing 26 such that the open end 84 is forced between the plurality of radially spaced ribs 90 of the chaplet 14, such that the circular ribs 86 of the pump housing 26 (see
Subsequently, the upper check ball 32 is dropped into the upper portion 44 of the upper pump body 18 where it rests upon the check ball retainer 132. Thereafter, the actuator 12 is pressed or snapped into place on the upper portion 44 of the upper pump body 18. That is, upper portion 44 of the upper pump body 18 is pressed into the fluid passage 106 of the actuator 12 until the bulbous portion 134 of the upper pump body 18 engages a retention feature 136 in the fluid dispensing passage 106 of the actuator 12. The retention feature 136 may be a pocket in the wall of fluid passage 106, or a pair of ribs or other physical feature serving to securely capture the bulbous portion 134 of the upper pump body 18. The check ball stop 108 of the actuator 12 prevents the upper check ball 32 from entering the nozzle 102.
Next, a gasket 28 is inserted through the closure 16 such that it abuts the sealing surface 80 of the pump housing 26. The gasket 28 functions to seal a fluid dispenser bottle 166 to the pump housing 26. Prior to installing the hand pump 10 on a dispenser bottle 166, typically a dip tube 168 will be attached to the fluid inlet 78 of the pump housing 26. The length of the dip tube 168 will be sized to fit the depth of the dispenser bottle 166.
The above sequence of steps is one preferred method of assembling the hand pump 10 of the present invention. The hand pump 10 may be assembled by hand or via automated processes.
The hand pump 10 will typically be shipped in the closed and locked position as shown in
With reference to
With reference to
The fluid subsequently moves upwardly through the pump housing 26 and through the holes 62 in the lower pump body 20, upwardly through the fluid passages 146 and 148 in the lower and upper pump bodies, respectively, and lifts the upper check ball 30 off its seat and then proceeds into the fluid passage 106 in the actuator 12 and out the nozzle 102.
With reference to
As shown, the present invention hand pump 10 utilizes an actuator 12 equipped with a folding nozzle 102. The hand pump 10 is well-suited for use in e-commerce where the hand pump 10 and filled dispenser container are commonly shipped unboxed. The actuator 12 and folding nozzle 102, in addition to eliminating the protrusion of a conventional nozzle, also contribute to pump sealing in the event the hand pump 10 and dispenser bottle 166 are inverted during shipping. The folding nozzle 102 also assists to prevent the actuator 12 from loosening during shipping. The actuator nozzle is unfolded after the package is delivered and ready for use.
The eye mark 114 (see
Referring now to
The closure portion 155 of the integrated chaplet-closure 148 includes a generally hollow cylindrical outer body 156 which includes interior screw threads 158 which are sized to engage with threads on a dispenser bottle 166. The integrated chaplet-closure 48 also includes a plurality of ribs 160 oriented radially about the generally circular inner body 150 and a plurality of circular grooves 162 disposed on a wall 164 of the integrated chaplet-closure 148. These features allow the pump housing 26 to be press or snap fit into the integrated chaplet-closure 148, in the same manner as for the non-integrated chaplet 14 and closure 16. The integrated chaplet-closure 148 simplifies the pump design and therein reduces assembly costs.
While the present invention has been described with regards to particular embodiments, it is recognized that additional variations of the present invention may be devised without departing from the inventive concept.
This application claims the benefit of U.S. Provisional Application Ser. No. 62/532,940, filed Jul. 14, 2017 and entitled “A Hand Pump Actuator with Folding Nozzle Suitable for Ecommerce, which is incorporated herein by this reference.
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Number | Date | Country | |
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20190015860 A1 | Jan 2019 | US |
Number | Date | Country | |
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62532940 | Jul 2017 | US |