Hand pump with folding nozzle
10493478 ยท 2019-12-03
Inventors
Cpc classification
B05B11/1023
PERFORMING OPERATIONS; TRANSPORTING
F04B23/02
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
B05B11/106
PERFORMING OPERATIONS; TRANSPORTING
F04B23/023
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
B05B11/1047
PERFORMING OPERATIONS; TRANSPORTING
B05B11/1059
PERFORMING OPERATIONS; TRANSPORTING
A47K5/1205
HUMAN NECESSITIES
F04B9/14
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
International classification
B05B11/00
PERFORMING OPERATIONS; TRANSPORTING
F04B23/02
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Abstract
A hand pump design that utilizes an actuator with a folding nozzle suitable for use in e-commerce is presented. The folding nozzle equipped pump actuator forms part of a hand pump assembly which incorporates a pump body 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 balls to prevent back flowing of the fluid to be dispensed into the dispenser bottle.
Claims
1. A manually operated dispensing pump comprising: an actuator, a chaplet, a closure, a pump body assembly, a compression spring, and a pump housing; wherein the actuator is equipped with a fluid passage in fluid communication with a nozzle and has a fully extended position, a partially depressed position, and a locked position; wherein the nozzle is foldable between a closed position which inhibits fluid flow and an open position which allows fluid flow, and wherein the nozzle is of a contrasting color to that of the actuator, whereby the nozzle acts as an eye mark; wherein the nozzle folds fully within the actuator; wherein the actuator and the nozzle, when the nozzle is folded, have a tapered cylindrical exterior surface; wherein the pump body assembly is fixed to the actuator and includes a fluid passage in fluid communication with the fluid passage in the actuator and a sliding collar; the collar slidable between a closed position which prevents fluid in the pump housing from entering a fluid passage in the pump body assembly when the actuator is fully extended and an open position which allows fluid from the pump housing to enter the fluid passage in the pump body assembly when the actuator is partially depressed; the pump housing being equipped with a check valve at a fluid inlet and wherein the compression spring is disposed in the pump housing; the compression spring engaging a piston of the pump body assembly and the housing at a position adjacent the fluid inlet, wherein the compression spring biases the actuator to the fully extended position; the closure is disposed between the pump housing and the chaplet, wherein the pump housing is fixed to the chaplet; and wherein the actuator includes a screw thread engagable with a mating thread formed on the chaplet, wherein engagement of the screw threads puts the actuator into the locked position; means to provide resistance when the actuator is locked or unlocked from the chaplet, wherein the means to provide resistance comprises nubs disposed about an interior surface of the actuator which engage with serrations disposed about an exterior surface of the chaplet; and wherein the actuator includes an opening for receipt of the nozzle, a blocking portion and at least one snap tab disposed on a vertical side of the opening; wherein when in the folded position, an end of the nozzle abuts the blocking portion and the at least one snap tab secures the nozzle within the opening; wherein when the nozzle is in the folded position and the actuator is in the locked position, the nozzle cannot be unfolded.
2. The manually operated dispensing pump of claim 1, wherein the pump body assembly includes a pressure operated check valve disposed in an outlet of the fluid passage in the pump body assembly.
3. The manually operated dispensing pump of claim 1, wherein the closure has a cylindrical exterior surface and, wherein the actuator and closure, form a cylindrical exterior surface transitioning to a tapered cylindrical exterior surface.
4. The manually operated dispensing pump of claim 1, wherein the pump body assembly comprises a lower pump body, and an upper pump body which snap together wherein the sliding collar is disposed between the lower pump body and upper pump body.
5. The manually operated dispensing pump of claim 1, wherein the chaplet is fully enclosed within the actuator when the actuator is in the locked position.
6. The manually operated dispensing pump of claim 1, wherein the actuator has a tapered cylindrical body have an upper end and a lower end and an outwardly extending ring disposed about the tapered cylindrical body at its lower end.
7. A manually operated dispensing pump comprising: an actuator, a chaplet, a closure, a pump body assembly, a compression spring, and a pump housing; wherein the actuator is equipped with a fluid passage in fluid communication with the nozzle and has a fully extended position, a partially depressed position, and a locked position; wherein a nozzle is foldable between a closed position which inhibits fluid flow and an open position which allows fluid flow; wherein the nozzle folds fully within the actuator; wherein the actuator and the nozzle, when the nozzle is folded, have a tapered cylindrical exterior surface; wherein the pump body assembly is fixed to the actuator and includes a fluid passage in fluid communication with the fluid passage in the actuator and a sliding collar; the collar slidable between a closed position which prevents fluid in the pump housing from entering a fluid passage in the pump body assembly when the actuator is fully extended and an open position which allows fluid from the pump housing to enter the fluid passage in the pump body assembly when the actuator is partially depressed; the pump housing being equipped with a check valve at a fluid inlet and wherein the compression spring is disposed in the pump housing; the compression spring engaging a piston of the pump body assembly and the housing at a position adjacent the fluid inlet, wherein the compression spring biases the actuator to the fully extended position; and the closure is disposed between the pump housing and the chaplet, wherein the pump housing is fixed to the chaplet; and means for holding the actuator in the locked position; wherein the actuator includes an opening for receipt of the nozzle, a blocking portion and at least one snap tab disposed on a vertical side of the opening; wherein when in the folded position, an end of the nozzle abuts the blocking portion and the at least one snap tab secures the nozzle within the opening; wherein when the nozzle is in the folded position and the actuator is in the locked position, the nozzle cannot be unfolded.
8. The manually operated dispensing pump of claim 7, wherein the closure has a cylindrical exterior surface and, wherein the actuator and closure, form a cylindrical exterior surface transitioning to a tapered cylindrical exterior surface.
9. The manually operated dispensing pump of claim 7, wherein the means for holding the actuator in a locked position comprises a screw thread formed on the actuator and a mating screw thread formed on the chaplet.
10. The manually operated dispensing pump of claim 7, wherein the actuator and chaplet include a means to provide resistance when the actuator is locked or unlocked from the chaplet.
11. The manually operated dispensing pump of claim 10, wherein the means to provide resistance comprises nubs disposed about an interior surface of the actuator which engage with serrations disposed about an exterior surface of the chaplet.
12. The manually operated dispensing pump of claim 7, wherein the pump body assembly includes a pressure operated check valve disposed in an outlet of the fluid passage in the pump body assembly.
13. The manually operated dispensing pump of claim 7, wherein the pump body assembly comprises a lower pump body, and an upper pump body which snap together wherein the sliding collar is disposed between the lower pump body and upper pump body.
14. The manually operated dispensing pump of claim 7, wherein the chaplet is fully enclosed within the actuator when the actuator is in the locked position.
15. The manually operated dispensing pump of claim 7, wherein the actuator has a tapered cylindrical body have an upper end and a lower end and an outwardly extending ring disposed about the tapered cylindrical body at its lower end.
16. A manually operated dispensing pump comprising: an actuator, an integrated chaplet-closure having a chaplet portion and a closure portion, a pump body assembly, a compression spring, and a pump housing; wherein the actuator is equipped with a fluid passage in fluid communication with the nozzle and has a fully extended position, a partially depressed position, and a locked position; wherein a nozzle is foldable between a closed position which inhibits fluid flow and an open position which allows fluid flow; wherein the nozzle folds fully within the actuator; wherein the actuator and the nozzle, when the nozzle is folded, have a tapered cylindrical exterior surface; wherein the pump body assembly is fixed to the actuator and includes a fluid passage in fluid communication with the fluid passage in the actuator and a sliding collar; the collar slidable between a closed position which prevents fluid in the pump housing from entering a fluid passage in the pump body assembly when the actuator is fully extended and an open position which allows fluid from the pump housing to enter the fluid passage in the pump body assembly when the actuator is partially depressed; the pump housing being equipped with a check valve at a fluid inlet and wherein the compression spring is disposed in the pump housing; the compression spring engaging a piston of the pump body assembly and the housing at a position adjacent the fluid inlet, wherein the compression spring biases the actuator to the fully extended position; and the pump housing being fixed to the integrated chaplet-closure; and means for holding the actuator in the locked position; wherein the actuator includes an opening for receipt of the nozzle, a blocking portion and at least one snap tab disposed on a vertical side of the opening; wherein when in the folded position, an end of the nozzle abuts the blocking portion and the at least one snap tab secures the nozzle within the opening; wherein when the nozzle is in the folded position and the actuator is in the locked position, the nozzle cannot be unfolded.
17. The manually operated dispensing pump of claim 16, wherein the closure has a cylindrical exterior surface and, wherein the actuator and closure, form a cylindrical exterior surface transitioning to a tapered cylindrical exterior surface.
18. The manually operated dispensing pump of claim 16, wherein the means for holding the actuator in a locked position comprises a screw thread formed on the actuator and a mating screw thread formed on the integrated chaplet-closure.
19. The manually operated dispensing pump of claim 18, wherein the actuator and integrated chaplet-closure include a means to provide resistance when the actuator is locked or unlocked from the chaplet.
20. The manually operated dispensing pump of claim 19, wherein the means to provide resistance comprises nubs disposed about an interior surface of the actuator which engage with serrations disposed about an exterior surface of the integrated chaplet-closure.
21. The manually operated dispensing pump of claim 16, wherein the pump body assembly includes a pressure operated check valve disposed in an outlet of the fluid passage in the pump body assembly.
22. The manually operated dispensing pump of claim 16, wherein the pump body assembly comprises a lower pump body, and an upper pump body which snap together wherein the sliding collar is disposed between the lower pump body and upper pump body.
Description
BRIEF DESCRIPTION OF DRAWINGS
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DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
(13) 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.
Description of the Component Parts
(14) Referring to
(15) With continued reference to
(16) With reference to
(17) 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.
(18) With reference to
(19) With reference to
(20) With reference to
(21) With reference to
(22) With particular reference to
(23) 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 Components
(24) 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.
(25) 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.
(26) 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
(27) 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
(28) 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.
(29) 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.
(30) 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.
Operation of the Hand Pump
(31) The hand pump 10 will typically be shipped in the closed and locked position as shown in
(32) With reference to
(33) With reference to
(34) 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.
(35) With reference to
(36) 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.
(37) The eye mark 114 (see
Alternative Integrated Chaplet-Closure Design
(38) Referring now to
(39) 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.
(40) 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.