Abstract:
The present invention discloses a liquid dispenser having a body capable of attaching to an upright support surface. The body having a top wall, sidewalls, and a bottom wall, and a first orifice present in the bottom wall. The first orifice leads into an intermediary chamber said intermediary chamber having a second orifice. The second orifice may be located substantially opposite said first orifice. The intermediary chamber having an open end for admitting a control mechanism, with the control mechanism axially or reciprocally disposed within the intermediary chamber. Also present is a refill opening that is disposed along the sidewalls.

Description:
CLAIM OF PRIORITY 
       [0001]    This application is a continuation-in-part application claiming priority to U.S. utility application Ser. No. 13/045,069, filed on Mar. 10, 2011 and claiming priority to U.S. Ser. No. 61/312,276 filed on Mar. 10, 2010, the contents of both applications are fully incorporated herein by reference. 
     
    
     FIELD OF THE INVENTION 
       [0002]    The invention relates to a liquid dispenser and release of contents therein. 
       BACKGROUND OF THE INVENTION 
       [0003]    The invention relates to a dispenser for fluid or moderately viscous substances, such as mouthwash, sanitizer or liquid soaps and detergents. The invention contains an easily operated control mechanism for dispensing liquids. Furthermore, the invention may be rapidly refilled without messy overruns and spillovers. The present invention affords the benefits of easy and secure affixation to a support surface. The disclosed dispenser is just as easily sealed once the refill procedure is completed. 
         [0004]    The liquids within the disclosed dispenser can be emitted at will through a choke or release mechanism. The choke mechanism relies on a shank to limit or cut off the outflow of a liquid from the dispenser. The shank may be rotated or moved reciprocally within an intermediary chamber, to vary the flow velocity of the liquid being dispensed in and outward direction. When the choke mechanism is open the liquids stored within the present invention are propelled through the apertures and hollow channel of the shank by the force of gravity. 
       DESCRIPTION OF THE RELATED ART 
       [0005]    U.S. Pat. No. 2,518,886 discloses a dispenser for salmon eggs having a head, having a cylindrical securing portion, a barrel positioned at the outer end of and transversely to said portion, one end portion of the barrel being cylindrical and the other end portion forming a trough merging into upwardly diverging walls with said cylindrical securing portion, said trough having a discharge opening—at its outer end, and a plunger reciprocally mounted in the barrel and normally positioned in the trough with one end closing the discharge opening, said plunger having means for actuating the same to move said end from the opening into the trough behind the product therein for discharging the same from said opening. 
         [0006]    U.S. Pat. No. 4,360,130 discloses a wall-mounted dispenser for liquid soap has a separable reservoir with an outlet valve. The dispenser further includes a main body with a second outlet valve. When the reservoir is mounted to the main body, a metering chamber is defined between the two outlet valves. The dispensing function is experienced by pushing in a plunger which temporarily decreases the chamber volume and forces the main body outlet valve to open temporarily, thus dispensing a charge of liquid soap. As the plunger is released, a spring return pushes the plunger out, decreasing pressure in the metering chamber, which is equalized as the first outlet valve temporarily opens, admitting a next charge of liquid soap from the reservoir to the metering chamber. The reservoir is replaced by pushing in a resilient release, but the resilient release is preferably normally provided with a stop which must first be moved out of the way. This is to prevent the user from accidentally disconnecting the reservoir when what is really wanted is a dispensation of soap. Should the reservoir be disconnected, pushing in and releasing the plunger will not result in the first outlet valve to open, because pressure will not be lowered in the metering chamber when the plunger is released. 
         [0007]    U.S. Pat. No. 7,100,801 teaches a method of facilitating replacement of a supply of air freshener every time a supply of soap is replaced, including the steps of providing a supply of air freshener, providing a supply of soap and joining the supply of soap and the supply of air freshener. Another aspect of the invention is a method of packaging a supply unit including providing a supply of soap and a supply of air freshener and connecting the supply of soap and the supply of air freshener in a manner such that when the supply of soap is removed from a dispenser, the supply of air freshener is removed from the dispenser as well. Another aspect is a supply unit for the dual dispenser including a receptacle, a supply of soap within the receptacle, and a supply of air freshener connected to or secured within the receptacle. Yet another aspect of the invention is a dual dispenser including means for dispensing the soap, means for actuating the dispensement of soap, means for accelerating the dispensement of air freshener and means for actuating the means for accelerating the dispensement of air freshener. 
         [0008]    Various implements are known in the art, but fail to address all of the problems solved by the invention described herein. One embodiment of this invention is illustrated in the accompanying drawings and will be described in more detail herein below. 
       SUMMARY OF THE INVENTION 
       [0009]    The present invention relates to a liquid dispenser for dispensing a predetermined quantity of liquid. 
         [0010]    In a preferred embodiment, the liquid dispenser has an inner dispensing chamber that is a hollow cylinder having one closed end and a one open end. The inner dispensing chamber may also have an inner inlet orifice, preferably located on a wall of the hollow cylinder, and an inner outlet orifice, also located on a wall of the cylinder. 
         [0011]    The liquid dispenser may also have an outer dispensing chamber. The outer dispensing chamber may, for instance, be a hollow cylinder that is sized and shaped to rotatably fit over the inner dispensing chamber. The outer dispensing chamber may also have one closed end and one open end. The outer dispensing chamber may also have an outer inlet orifice that may, for instance, be located on the wall of the hollow cylinder, and an outer outlet orifice, also located on the wall of the hollow cylinder. 
         [0012]    In a preferred embodiment, the inner dispensing chamber may be located within the outer dispensing chamber, with the open end of the inner dispensing chamber being positioned proximate to the closed end of the outer dispensing chamber, so as to form a sealed container having a predetermined volume. 
         [0013]    The inner dispensing chamber is preferably rotatably adjustable between at least two positions. 
         [0014]    In a first position, the inner dispensing chamber and the outer dispensing chamber may be oriented with respect to each other so that the inner inlet orifice of the inner dispensing chamber is sufficiently aligned with the outer inlet orifice of the outer dispensing chamber to allow fluid to flow under gravity from outside the outer dispensing chamber into the hollow cylinder of the inner dispensing chamber. 
         [0015]    At the same time, in the first position, the inner outlet orifice of the inner dispensing chamber may be sufficiently out of alignment with the outer outlet orifice of the outer dispensing chamber that no fluid flows through either of the outlet orifices. 
         [0016]    In this way, in the first position, the inner dispensing chamber may fill with a quantity of liquid substantially equal to the volume of the hollow cylinder of the inner dispensing chamber. 
         [0017]    In a second position, the inner outlet orifice of the inner dispensing chamber and the outer outlet orifice of the outer dispensing chamber may be sufficiently aligned to allow fluid to flow under gravity from the hollow cylinder of the inner dispensing chamber, to outside the outer dispensing chamber. At the same time, in the second position, the inner inlet orifice of the inner dispensing chamber may be sufficiently out of alignment with the outer inlet orifice that substantially no fluid flows through either of the inlet orifices. 
         [0018]    In a further, preferred embodiment, the liquid dispenser includes at least one fluid sealing element located between the inner dispensing chamber and the outer dispensing chamber. The liquid dispenser may have a liquid reservoir located above the inner dispensing chamber and may also include a level sensor degrees and a check valve. 
         [0019]    In a further, preferred embodiment, the liquid dispenser may be designed so that activating an electrical switch such as, but not limited to, activating a rotary solenoid, dispenses a predetermined measure of the liquid by changing the orientation of the inner dispensing chamber with respect to the outer dispensing chamber from the first position to the second position. 
         [0020]    In a further, preferred embodiment, the liquid dispenser includes a lock mechanism controlling the accessibility to the liquid in the reservoir. When the lock is properly locked, the lid cannot be opened, preventing access to the reservoir. 
         [0021]    In a further, preferred embodiment, the liquid dispenser includes an optical sensor that that may activate a processor board, wherein the processor board sends out signals for the rotation of chambers and release of liquids. 
         [0022]    Therefore, the present invention succeeds in conferring the following, and others not mentioned, desirable and useful benefits and objectives. 
         [0023]    It is an object of the present invention to provide a reliable and easy to use dispenser for common sanitizing and cleaning solutions or liquids. 
         [0024]    It is another object of the present invention to provide a dispenser that easily dispenses liquids stored within. 
         [0025]    Yet another object of the present invention is to provide a closing mechanism that is hermetical, but does not require a significant force to actuate. 
         [0026]    Still another object of the present invention is to provide a liquid release mechanism or control mechanism that may move in multiple directions while controlling the outflow of liquids. 
         [0027]    Still another object of the present invention is to provide a liquid dispenser having a splash guard. 
         [0028]    Yet another object of the present invention is to provide a dispenser that can be easily and rapidly refilled, while limiting messy spillovers. 
         [0029]    Still another object of the present invention is to provide a dispenser having a level indicator, so that the stored liquid may be replenished before it completely runs out. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0030]      FIG. 1  shows an isometric view of the liquid dispenser of a first preferred embodiment of the present invention. 
           [0031]      FIG. 2  shows a cross-sectional view of the liquid dispenser of the first preferred embodiment of the present invention. 
           [0032]      FIG. 3  shows an isometric view of the first preferred embodiment of the liquid dispenser of the present invention. 
           [0033]      FIG. 4  shows an isometric view of the first preferred embodiment of the liquid dispenser of the present invention with a refill lid in an open position. 
           [0034]      FIG. 5  shows a cross-sectional view of the first preferred embodiment of the liquid dispenser of the present invention. 
           [0035]      FIG. 6  shows a front view of a liquid dispenser of a second preferred embodiment of the present invention. 
           [0036]      FIG. 7  shows a sectional view of the liquid dispenser of the second preferred embodiment of the present invention. 
           [0037]      FIG. 8  shows a sectional view of the liquid dispenser of the second preferred embodiment of the present invention, providing details for the dispensing chambers. 
           [0038]      FIG. 9  shows an isometric exploded view of the liquid dispenser of the second preferred embodiment of the present invention, illustrating the various components. 
           [0039]      FIG. 10  shows a schematic block diagram of the electrical control circuit of a liquid dispenser of the present invention. 
           [0040]      FIG. 11  shows an isometric view of the liquid dispenser of a third preferred embodiment of the present invention. 
           [0041]      FIG. 12  shows a side view of the liquid dispenser of the third preferred embodiment of the present invention, with the lower portion housing removed. 
       
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENTS 
       [0042]    The preferred embodiments of the present invention will now be described with reference to the drawings. Identical elements in the various figures are identified with the same reference numerals. 
         [0043]    Reference will now be made in detail to embodiment of the present invention. Such embodiments are provided by way of explanation of the present invention, which is not intended to be limited thereto. In fact, those of ordinary skill in the art may appreciate upon reading the present specification and viewing the present drawings that various modifications and variations can be made thereto. 
         [0044]      FIG. 1  shows an isometric view of the liquid dispenser of a first preferred embodiment of the present invention. 
         [0045]    The liquid dispenser  100  may have inner dispensing chamber  110  that has one closed end  120 . The liquid dispenser  100  may also have an outer dispensing chamber  140  into which the inner dispensing chamber  110 . 
         [0046]    As seen in  FIG. 1 , the liquid dispenser  100  may have an outer inlet orifice  160  in the outer dispensing chamber  140 . The outer inlet orifice  160  may be connected by a straight tube  250  to a measuring device such as, but not limited to, a level sensor  220  (not shown in  FIG. 1 ). The outer inlet orifice  160  may also be connected via a U shaped tube  240  to a liquid reservoir  230  (not shown in  FIG. 1 ). The liquid dispenser  100  may also include a check valve  260  that may facilitate easy filing and draining of the inner dispensing chamber  110  by allowing air to enter and exit the inner dispensing chamber  110 . 
         [0047]      FIG. 2  shows a cross-sectional view of the liquid dispenser of the first preferred embodiment of the present invention. 
         [0048]    The liquid dispenser  100  may have an inner dispensing chamber  110 . In a preferred embodiment, the inner dispensing chamber  110  may be a hollow cylinder  115  having one closed end  120  and one open end  125 . The inner dispensing chamber  110  may also have an inner inlet orifice  130  located on a wall of the hollow cylinder  115  and an inner outlet orifice  135  located on another portion of a wall of the hollow cylinder  115 . 
         [0049]    The liquid dispenser  100  may also have an outer dispensing chamber  140  that is also a hollow cylinder  155  and which is sized and shaped to close but rotatable fit over the inner dispensing chamber  110 . The outer dispensing chamber  140  may also have one closed end  150  and one open end  165 . In a preferred embodiment, the inner dispensing chamber  110  may be located within the outer dispensing chamber  140  with the open end  125  of the inner dispensing chamber  110  being positioned proximate to the closed end  150  of the outer dispensing chamber  140 . In that way, a sealed off volume of a predetermined capacity may be created. 
         [0050]    The outer dispensing chamber  140  may also include an outer inlet orifice  160  that may be located on a wall of the hollow cylinder  155  and an outer outlet orifice  170  may be located on a different portion of a wall of the hollow cylinder  155 . 
         [0051]    The inner dispensing chamber  110  may be rotatably adjustable between a first position and a second position. 
         [0052]    In the first position, shown in  FIG. 2 , the inner inlet orifice  130  of the inner dispensing chamber  110  and the outer inlet orifice  160  of the outer dispensing chamber  140  may be sufficiently aligned to allow fluid to flow, under gravity, from outside the outer dispensing chamber  140  into the hollow cylinder  115  of the inner dispensing chamber  110 . 
         [0053]    Moreover, in the first position, shown in  FIG. 1 , the inner outlet orifice  135  of the  140  may be sufficiently out of alignment with the outer outlet orifice  170  of the outer dispensing chamber  140 . In this way, substantially no fluid flows through either of the outlet orifices. 
         [0054]    By rotating the inner dispensing chamber  110  shown in  FIG. 2  by an angle of 45 degrees counter clockwise, a second position or alignment of the closed end inner dispensing chamber  110  with respect to the outer dispensing chamber  140  may be obtained. In this second position or alignment, the inner outlet orifice  135  of the inner dispensing chamber  110  may now be sufficiently aligned with the outer outlet orifice  170  of the outer dispensing chamber  140  to allow fluid to flow under gravity from the hollow cylinder  115  of the inner dispensing chamber  110 , to outside of said outer dispensing chamber  140 . 
         [0055]    Moreover, in this second position, the inner inlet orifice  130  of the inner dispensing chamber  110  is no longer in alignment with the outer inlet orifice  160  of the outer dispensing chamber  140 . In this position, substantially no fluid flows through either of the inlet orifices, so that the volume dispensed is substantially equal to the capacity of the hollow cylinder  115  of the inner dispensing chamber  110 . 
         [0056]    One of ordinary skill in the art will readily appreciate that although the inlet and outlet orifices of the inner dispensing chamber  110  are show as being aligned at an angle of 134 degrees with respect to each other, while the inlet and outlet orifice of the outer dispensing chamber  140  are aligned at 180 degrees with respect to each other, the liquid dispenser  100  could be made with a variety of different alignments, so long as the rotation of the inner dispensing chamber  110  was adjusted to conform to the alignments. 
         [0057]    The inner inlet orifice and inner inner outlet orifice may, for instance, be offset from each other by an angle in a range of 110 degrees to 160 degrees. 
         [0058]    In a preferred embodiment, the liquid dispenser  100  may include at least one fluid sealing element  210  located between the inner dispensing chamber  110  and the outer dispensing chamber  140 . The fluid sealing element  210  may, for instance, be of a gasket type such as, but not limited to, an o-ring. There may, for instance, be at least two fluid sealing element  210 , located between the orifices and the closed end  120  of the inner dispensing chamber  110 , and one between the orifices and the closed end  150  of the outer dispensing chamber  140 . 
         [0059]    Also shown in  FIG. 2  is the U shaped tube  240  that may provide a fluid connection between the outer inlet orifice  160  and a liquid reservoir  230  (not shown in  FIG. 2 ). 
         [0060]    There is also the straight tube  250  that may connect the outer inlet orifice  160  to a sensor such as, but not limited to, a level sensor  220 . 
         [0061]      FIG. 3  shows an isometric view of the first preferred embodiment of the liquid dispenser of the present invention. 
         [0062]    In  FIG. 3 , the outside of a liquid reservoir  230  is shown. The liquid reservoir  230  may have a refill lid  330 , shown closed in  FIG. 3  and covering the refill opening  310 . 
         [0063]    The liquid dispenser  100  may also have an outlet spout  340  from which the fluid may be dispensed and a splash guard  320  to prevent damage to a wall the liquid dispenser  100  may be mounted on. The may also be an attachment opening  350  in the splash guard  320  as part of a means to fix the liquid dispenser  100  to a wall or other surface. 
         [0064]    The liquid dispenser  100  is preferably between 2 inches and 1 foot in height, between 1 inch and 6 inches in width  13 , and between 1 inch and 6 inches in depth  14  ( FIG. 4 ). The liquid dispenser  10  may preferably hold at least 2 ounces of a liquid internally. Preferably, the liquid dispenser may be easily disassembled for cleaning, storing, transporting or repair. The liquid dispenser  10  may receive an infusion of liquid through the refill opening  150 , or the liquid may reside in a disposable pack that may be inserted into the dispenser  10 . 
         [0065]      FIG. 4  shows an isometric view of the first preferred embodiment of the liquid dispenser of the present invention with a refill lid in an open position. 
         [0066]    The refill lid  330  has been rotated outward via hinge unit  410  so as to reveal the refill opening  310 . 
         [0067]    In an alternate embodiment, the liquid reservoir  230  may be configured to accommodate an interchangeable package containing the liquid to be dispensed. 
         [0068]      FIG. 5  shows a cross-sectional view of the first preferred embodiment of the liquid dispenser of the present invention. 
         [0069]    In this view the inner dispensing chamber  110  and the outer dispensing chamber  140  may be seen in position beneath the liquid reservoir  230 . Therefore the Examiner&#39;s rejection is respectfully traversed outer outlet orifice  170  may also be seen in alignment with the outlet spout  340 . The U shaped tube  240  that may connect the liquid reservoir  230  to the outer outlet orifice  170  is shown, along with the straight tube  250  that may connect the outer outlet orifice  170  to a sensor such as, but not limited to, a level sensor  220  that may senses the level of liquid in the liquid reservoir  230 . 
         [0070]    The electrical control box  510  may house components such as, but not limited to, a level sensor  220 , a processor board  640 , a primary level sensor  620 , a battery level monitor  690  and a battery  710  or some combination thereof. 
         [0071]      FIGS. 6-9  and  11 - 12  show the structures and design of two more preferred embodiments of the present invention. It should be noted that since some structures are shared by the various embodiments, the descriptions for such structures are not fully repeated. The detailed description for one component in the first preferred embodiment may be considered included for the same component in the other embodiments, unless there is a direct conflict provided for the component. 
         [0072]      FIG. 6  shows a front view of a liquid dispenser of a second preferred embodiment of the present invention. 
         [0073]    Shown in  FIG. 6  is the outside of the liquid dispenser  100 , which may have a reservoir  230  positioned above a lower portion covered by a lower portion housing  420 . The liquid reservoir  230  may have a refill lid  330 , shown closed in  FIG. 6 . The liquid dispenser  100  may also have an outlet spout  340  from which the fluid may be dispensed and a splash guard  320  to prevent damage to a wall the liquid dispenser  100  may be mounted on. The may also be a lens  490  attached to the splash guard  320 . The liquid dispenser  100  may also include an on/off switch  680  that can control power supply to the dispenser.  FIG. 6  also shows indicators  450  and a lock  430 . 
         [0074]      FIG. 7  shows a sectional view of the liquid dispenser of the second preferred embodiment of the present invention. 
         [0075]    The apparent difference between the second embodiment and the first embodiment (see  FIG. 5 ) is that the reservoir  230  in the second embodiment is a distinct and separable structure. In the second embodiment shown in  FIG. 7 , the reservoir  230  is positioned on a lower portion of the dispenser covered by a lower portion housing  420 . In this view, the chamber assembly  465 , which includes the inner dispensing chamber  110  and the outer dispensing chamber  140 , may be seen in position beneath the liquid reservoir  230  and fluidly connected to the liquid reservoir through a tube  440  and valve  445 . The outer outlet orifice  170  may also be seen in alignment with the outlet spout  340 . 
         [0076]    Attached to the outer chamber  140  is an optical receiver  610  positioned against a through hole  455  on the lower portion housing  420 . Light generated by an emitter  495  passes through a lens  490  may be received by the optical receiver  610 . As shown in  FIG. 9 , the lens  490  and emitter  495  may attach to the splash guard  320 . Movement of objects beneath the through hole  455  may be detected by the optical receiver  610  and signals may be sent to trigger actions such as the dispensing of liquid. 
         [0077]      FIG. 8  shows a sectional view of the liquid dispenser of the second preferred embodiment of the present invention, providing details for the dispensing chambers. 
         [0078]    In a large part, the dispensing chambers of the second embodiment are similar to the dispensing chamber of the first embodiment, as shown in  FIG. 2 . The liquid dispenser  100  may have an inner dispensing chamber  110 , which may be a hollow cylinder  115  having one closed end  120  and one open end  125  (not shown in  FIG. 8 ). The inner dispensing chamber  110  may also have an inner inlet orifice  130  located on a wall of the hollow cylinder  115  and an inner outlet orifice  135  located on another portion of a wall of the hollow cylinder  115 . 
         [0079]    The liquid dispenser  100  may also have an outer dispensing chamber  140  that is also a hollow cylinder  155  and which is sized and shaped to close but rotatable fit over the inner dispensing chamber  110 . The outer dispensing chamber  140  may also have one closed end  150  and one open end  165  (not shown in  FIG. 8 ). In a preferred embodiment, the inner dispensing chamber  110  may be located within the outer dispensing chamber  140  with the open end  125  of the inner dispensing chamber  110  being positioned proximate to the closed end  150  of the outer dispensing chamber  140 . In that way, a sealed off volume of a predetermined capacity may be created. The outer dispensing chamber  140  may also include an outer inlet orifice  160  that may be located on a wall of the hollow cylinder  155  and an outer outlet orifice  170  may be located on a different portion of a wall of the hollow cylinder  155 . 
         [0080]    The inner dispensing chamber  110  may be rotatably adjustable between a first position and a second position. Switching between the first position and the second position results in the switch between a first state wherein liquid flows from the reservoir  230  to the hollow cylinder  115  and a second state wherein liquid flows from the hollow cylinder  115  to the outer outlet orifice  170 . The details of the transition are described for  FIG. 2 . 
         [0081]    In a preferred embodiment, the liquid dispenser  100  may include at least one fluid sealing element  210  located between the inner dispensing chamber  110  and the outer dispensing chamber  140 . In addition to the descriptions for  FIG. 2 , the fluid sealing element  210  may also be a cylinder having two holes that are aligned with the inlet and outlet orifices of the inner dispensing chamber  110 . The fluid sealing element  210  rotates with the dispensing chamber  110  relative to the outer chamber  140 , providing a sealing between the two chambers. 
         [0082]    Also shown in  FIG. 8  are the tube  440  and valve  445  that may provide a fluid connection between the outer inlet orifice  160  and a liquid reservoir  230 . The valve  445  is a mechanism that can only be opened when the reservoir  230  is properly placed on the lower portion of the dispenser  110 . 
         [0083]      FIG. 9  shows an isometric exploded view of the liquid dispenser of the second preferred embodiment of the present invention, illustrating the various components. 
         [0084]    Shown in  FIG. 9  is the liquid dispenser  100  having a reservoir  230  that may be positioned above a lower portion covered by a lower portion housing  420 . The liquid reservoir  230  may have a refill lid  330 , shown closed in  FIG. 9  and covering a refill opening. Attached to the lower portion housing  420 , there may be an on/off button  680  and a series of indicators  450 . The liquid dispenser  100  may also have a chamber assembly  465 , including the inner chamber  110  (not shown in  FIG. 9 ), the outer chamber  140 , a venting tube  470 , a motor assembly  475 , a battery housing  485 , a lens  490  and an emitter  495 . Attached to the chamber assembly  465  is an optical receiver  610 . Also shown in  FIG. 9  are a splash guard  320 , a lock  430 , a rear base  480 , and a processor board  640 . The venting tube  470 , as shown in  FIG. 9 , preferably extends from the inner chamber  110  upwards fluidly connects to ambient air, balancing the pressure in the inner chamber  110 . The rear base  480  allows the dispenser to be securely attached to a vertical surface, such as a wall. The lower portion housing  420  is mounted on the rear base  480 , forming a void in which the chamber assembly  465  can be accommodated. The lock  430  locks the refill lid  330  of the reservoir  230 . In the second embodiment, preferably the lid  330  is hingedly attached to the reservoir  230 . With the lock  430  in place, the refill lid  330  cannot be opened, preventing access to the interior of the reservoir. The battery housing  485  may be used to accommodate batteries, the power source for the dispenser. 
         [0085]    The first and second embodiments are preferred to be automatic, or at least partially automatic.  FIG. 10  shows a schematic block diagram of the electrical control circuit of the preferred embodiments of the present invention. 
         [0086]    The liquid dispenser  100  may have a processor board  640  that may be activated using a suitable optical receiver  610 . The processor board  640  may receive inputs from sensors such as, but not limited to, a primary level sensor  620 , a back up level sensor  630 , a battery level monitor  690  and a on/off switch  680  or some combination thereof. 
         [0087]    The processor board  640  may use these inputs to control the liquid dispenser  100  and to provide information to a user by displays such as, but not limited to, a liquid level indicator  650  and a battery level indicator  660 . The processor board  640  may, for instance, be also activate a rotary solenoid  670  in order to dispense liquid after receiving an input signal via, for instance, the optical receiver  610 . 
         [0088]    Activation of the optical receiver  610  may, for instance, change the orientation of the inner dispensing chamber with respect to the outer dispensing chamber from a first, filling position to a second, dispensing position. 
         [0089]      FIG. 11  shows an isometric view of the liquid dispenser of a third preferred embodiment of the present invention. Instead of electronically controlled, the third embodiment is preferred to be manually driven. 
         [0090]    Shown in  FIG. 11  is the outside of the liquid dispenser  100 , which may have a reservoir  230  positioned above a lower portion covered by a lower portion housing  420 . The liquid reservoir  230  may have a refill lid  330 , shown closed in  FIG. 11 . The liquid dispenser  100  may also have a lever  500  extending through lever holes  505 .  FIG. 11  also shows a lock  430 . 
         [0091]      FIG. 12  shows a side view of the liquid dispenser of the third preferred embodiment of the present invention, with the lower housing  420  removed. Shown in  FIG. 12  is the liquid dispenser  100  having a reservoir  230  covered by a refill lid  330 , shown closed in  FIG. 12 . The liquid dispenser  100  may also have a lever  500  extending attached to a motor assembly  475 .  FIG. 11  also shows a lock  430 . 
         [0092]    Referring to  FIGS. 11 and 12 , the liquid dispenser may be entirely or partially manual driven. The user may push down the lever  500  to switch the chambers ( 110  and  140 , not shown in  FIGS. 11 and 12 ) from the first position to the second position. The motor assembly  475  may include a spring, propelling the chambers back to the first position after the user releases the lever  500 . 
         [0093]    Some of the materials from which to manufacture any of the components of this invention may include one or more plastics and resins, including but not limited to plastic, rubber, foam, silicone, ABS, Polycarbonate, Noryl™, PVC, Polystyrene, ABS/PVC, PVC/Acrylic, Polysulfone, Acrylic, Polyethylene, Kydex™, PETG; glass, including but not limited to fiberglass, borosilicate, or quartz; wood; metals, including but not limited to iron, tin, aluminum, copper; rubber including but not limited to natural rubber, SBR, Isoprene rubber, Butadiene rubber, and Chloroprene rubber; or any combinations or composites of these or other materials. 
         [0094]    It should be noted that the nomenclature of the elements defines the preferred embodiment. However, a different orientation of the elements may be possible. For example, the first orifice may align with the second opening, and the first opening may align with the second orifice. Similarly none of the dimensions disclosed herein are definitive, but merely describe the preferred dimensions of the various parts of the present invention. 
         [0095]    The present invention may be used in multiple settings. It may preferably function as a dispenser of hygienic or cleansing liquids, such as, but not limited to mouthwash, soap, sanitizer or detergent. The liquids are preferably fluid to an extent that they will vigorously respond to the force of gravity. Therefore, there liquids may be propelled through the ducts and chambers of the present invention under the force of gravity. Alternatively, a spring, a press, or suction force may be implemented inside the present invention, so as to propel the dispensation of a liquid into a cup or in a general outward direction. 
         [0096]    Although this invention has been described with a certain degree of particularity, it is to be understood that the present disclosure has been made only by way of illustration and that numerous changes in the details of construction and arrangement of parts may be resorted to without departing from the spirit and the scope of the invention.