Patent Description:
The present invention relates to a drink bottle that has a drink container portion and a lid that removably connects to an open end of the container portion. The present invention is particularly concerned with drink bottles that employ a flexible drinking spout or straw that extends through the lid and into the container portion to facilitate drinking from the drink bottle. The present invention also relates to a removable lid for a drink bottle.

The present invention has particular application to drink bottle lids that are formed in two parts which have a first portion or inner lid that is connectable to the open end of a container portion and a second portion or outer lid that is hingedly connected to the first portion. In these forms of drink bottle lids, the outer lid can be hinged between an open position in which the drinking spout or straw is exposed for use, and a closed position in which the outer lid closes over the inner lid so that the drinking spout or straw becomes inaccessible and flow through the spout or straw is prevented. It will be convenient to describe the background to the invention in relation to this form of drink bottle.

The discussion of the background to the invention that follows is intended to facilitate an understanding of the invention. However, it should be appreciated that the discussion is not an acknowledgement or admission that any aspect of the discussion was part of the common general knowledge as at the priority date of the application.

<CIT> discloses a drink bottle with a removable lid that has inner and outer lids that are hinged to each other. A flexible drinking spout extends through the inner lid and also through an opening in a slide within the inner lid. The slide can be shifted between a first position in which a leading end of the slide cooperates with the outer lid to maintain the outer lid in a closed position relative to inner lid, and a second position in which the slide is retracted to release the leading end from cooperation with the outer lid so that the outer lid can pivot relative to the inner lid to an open positon, thereby providing access to the drinking spout.

A surface of the opening in the slide through which the drinking spout extends bears against a side surface of the drinking spout. That bearing engagement resists movement of the slide away from the first position and that resistance thus maintains the slide in the first position (absent a load overcoming the resistance) to maintain the cooperation between the leading end of the slide and the outer lid so as to maintain the outer lid in the closed position.

Retracting movement of the slide is resisted by resilient deformation of the flexible drinking spout. That resistance tends to return the slide from the second position to the first position when the load retracting the slide to the second position is released. Upon the load retracting the slide being released, the slide will return to the first position under resilient recovery of the drinking spout. In that position, the outer lid can be manually rotated to the closed position and the outer lid and the leading end of the slide will re-connect to retain the outer lid in the closed position.

The trailing end of the slide opposite the leading end is connected to a hinged button such that manual rotation of the button about the hinge in one direction retracts the slide from the first position against the resistance provided by resilient deformation of the drinking spout. Release of the button allows the button to rotate about the hinge in the opposite direction and to allow the slide to return under the influence of the drinking spout, to the first position.

The arrangement of <CIT> allows for quick release of the outer lid from the closed position for access to the drinking spout by pushing on the button to retract the slide. The arrangement of <CIT> further allows for automatic return of the slide from the retracted position so that when the outer lid is returned to the closed position, the leading end of the slide is in position for reengaging the outer lid.

However, the arrangement of <CIT> is relatively complex, requiring a separate slide and button, and the button requiring separate connections to both the slide and the inner lid. The separate and hinged connection between the slide and the button is crucial to the operation of the drink bottle, as the hinge connection transfers the rotational force applied by a user to a lower portion of the button, to a linear force exerted onto the slide, to shift the slide in a direction to release the leading end of the slide from cooperation with the outer lid, thus releasing the outer lid to an open condition.

<CIT> discloses an alternative drink bottle with a removable lid, in which the lid has an inner lid and an outer lid hinged to the inner lid. The inner lid has a button that extends through it and the button has a catch that cooperates with the outer lid to maintain the outer lid in a closed position relative to inner lid. The button can be shifted inwardly relative to the inner lid against the bias of a spring to release the catch and to allow the outer lid to pivot relative to the inner lid to an open positon, to thereby provide access to the drinking spout.

<CIT> discloses a squeezable drink bottle and a cap assembly thereof. The cap assembly can comprise a rigid cap body configured to be secured to a liquid container, a spout comprising a resiliently flexible tube extending through a passageway in the cap body, and a shut-off trigger slidably mounted in the cap body and adjustable between an open position and a closed position relative to the cap body, wherein when the trigger is in the open position, the tube is open to allow liquid to flow through the spout, and when the trigger is in the closed position, the tube is closed to block liquid flow through the spout.

The present applicant has endeavoured to develop a drink bottle having a removable lid that has inner and outer lids, in which the complexity of the lid is reduced without affecting the operation of the lid. In doing so, the present applicant has developed a drink bottle having a mechanism that can perform as required for drink bottles having an inner and outer lid construction as described above, but which can also have alternative uses as will become evident from the discussion that follows.

According to the present invention there is provided a drink bottle comprising;.

In some forms of the invention, the removable lid comprises an inner lid and an outer lid, with the outer lid being connected to the inner lid, such as being hingedly connected to the inner lid, to shift between closed and open positions or conditions. The actuator cooperates with the outer lid in the closed position of the outer lid to retain the outer lid in the closed position and movement of the actuator from the home position to the actuation position can release that cooperation so that the outer lid is released to shift to the open position. For this function, each of the actuator and the outer lid can, in some forms of the invention, include a catch so that the respective catches engage and cooperate when the outer lid is in the closed position to prevent movement of the outer lid to the open position. That is, the actuator and the outer lid each include catch components which engage and cooperate when the outer lid is in the closed position to prevent movement of the outer lid to the open position.

A drink bottle according to the above form of the invention in which the removable lid that comprises an inner lid and an outer lid, is relatively simple, at least compared to the prior art discussed above. The actuator can provide actuation as a single part, in contrast to the multi-part construction of the slider and button of <CIT>, while there is no requirement for a resilient tube as disclosed in <CIT>. With this latter prior art, applicant notes that standards around the world have requirements in relation to the use of small parts that could present choking hazards. The use of a small resilient tube in a drinking bottle could give rise to a breach of standards and present as a safety hazard.

Advantageously, the natural resilience of the spout or straw assembly can be employed for biasing the actuator towards or into the home position, so that an alternative bias arrangement (such as a coil spring or a resilient tube) is not required.

The simplicity of a drink bottle according to the above form of the invention allows for simplified manufacture and a reduction in parts, both of which contribute to a reduction in cost, although the operation of the drink bottle is still simple and effective.

However, development of the present invention has revealed that a slidable actuator that has a bearing surface in bearing engagement with the spout or straw assembly to bias the actuator towards the home position, can have other uses or functions in a drink bottle. For example, the slidable actuator can be used to prevent removal of the lid of a drink bottle by the actuator cooperating with the container of the drink bottle when the actuator is in the home position to lock the lid against disconnection from the container. In one example of this form of the invention, a portion of the actuator could extend into an opening in the container in the home position and by that cooperation between the actuator and the container, removal of the lid would be prevented. Where the lid connects to the container by screw thread, cooperation between the actuator and the container would be such as to prevent unthreading of the lid from the container. This could be a safety feature of a drink bottle according to the invention.

Alternatively, cooperation between the actuator and the container could be arranged to secure the lid to the container. That is, the lid could be applied to the container with the actuator in the actuation position and once the lid is in place on the container, the actuator could be released to the home position to move to a position of cooperation with the container and thus to secure the lid to the container. Removal of the lid from the container can be achieved by pushing the actuator from the home position to the actuation position to release the cooperation between the lid and the container. In this form of the invention, other forms of connection between the lid and the container, such as threaded connection, might not be required.

Still further, actuation of the actuator could be used to engage a vent to equalise the internal container pressure at any time, such as during drinking from the drink bottle, or in flight. In this form of the invention, a portion of the actuator could be in bearing contact with a vent flap, or could overlie a vent opening, such that movement of the actuator from the home position to the actuation position shifts the vent flap to an open or venting position, or exposes the vent opening to the interior of the container.

The actuator could alternatively provide a fidget for children that benefit from tactile interactions, such as neuro divergent children. The fidget could simply be the action of biased movement between the home and actuation positions.

Still further, the lid of a drink bottle according to the invention might itself define a container for storage of snacks, cutlery, or other items. The lid could thus include an inner lid and an outer lid similar to that described above whereby a containment area or volume is created between the inner and outer lids in the closed position of the outer lid relative to the inner lid for storage purposes. In this form of the invention, the actuator can lock the outer lid closed relative to the inner lid in the home position and can release the outer lid to an open positon in the actuation position.

It will thus be evident that common to all of the embodiments discussed above, is the provision of a slidable actuator that is slidable between home and actuation positions and which is biased towards the home position by bearing engagement with the resiliently flexible drinking spout or straw assembly. It is to be noted that the reference herein to spout or straw assembly or later herein just to spout is intended to cover an assembly that has any form of flexible conduit through which liquid can be extracted for drinking from the bottle and includes other conduits such as teats. The expression also covers other components that might be associated with a drinking spout or straw assembly, such as a gasket and a vent for example. Such an assembly might also include a flexible projection that is engaged by the bearing surface of the actuator rather than the actual conduit of the assembly through which liquid flows during drinking.

The actuator is slidably mounted to the lid in any suitable manner. In some forms of the invention, the actuator can be mounted or accommodated within an opening in the inner lid and the push face presents at or through a side wall of the inner lid. That is, the opening is open at or opens through a side wall of the inner lid so that the push face is accessible at the side wall of the inner lid for finger pressure.

A portion of the actuator comprising the bearing surface can extend out of the opening for bearing engagement with the spout or straw assembly.

The actuator can for example have a relatively linear or straight form, so that the actuator has the push face at one end and the bearing surface at an opposite end and whereby the actuator has a lengthwise axis between the push face and the bearing surface is mounted in the inner lid for linear movement along the lengthwise axis.

For mounting the actuator in the inner lid, the opening in the lid can be a close or snug fit about the actuator so that the actuator is guided within the opening between the home and actuation positions. Thus, there can be sliding contact between the actuator and facing internal surfaces of the opening as the actuator moves between the home and actuation positions. The biasing load applied to the actuator by the drinking spout or straw assembly must be sufficient to overcome the frictional load generated by this sliding contact.

The actuator can be arranged to cooperate with the opening to prevent rotation of the actuator within the opening. In some forms of the invention, the actuator can include rails, arms or bars for receipt within grooves, slots or channels formed in the internal surfaces of the opening, or the actuator can include grooves, slots or channels for receipt of rails, arms or bars formed as part of the opening. Alternatively, the actuator can be formed in an irregular shape or in a non-circular shape with the opening, or a portion of the opening formed to have the same irregular or non-circular shape to prevent rotation of the actuator within the opening.

As discussed above, where the removable lid of the drink bottle comprises an inner lid and an outer lid, the actuator can be arranged to cooperate with the outer lid to retain the outer lid in the closed position. Any suitable arrangement of cooperation between the actuator and the outer lid can be employed such as the catch arrangement discussed above.

The catch arrangement can be operable so that, with the actuator in the home position and being biased into that position by engagement with the drinking spout or straw assembly and with the outer lid in the open position, or at least not in the closed position, movement of the outer lid to the closed position will cause the catch of the outer lid to drive the actuator to shift towards the actuation position to allow the respective catches to move to an engagement position and thereafter, the actuator can return to the home position for engagement between the respective catches. At that point, the outer lid is retained in the closed position.

The catch arrangement can include an upstanding catch (relative to an upright standing condition of the drink bottle) that is formed as part of the actuator. The upstanding catch can be upstanding from an upper surface of the actuator. The upstanding catch can include a lateral catch member which interacts or cooperates with a corresponding catch receiver of the outer lid in the closed position of the outer lid. A catch receiver would comprise an opening or detent for receiving the catch member. One or each of the catch member and the catch receiver can have an inclined or sloping surface so that the respective members can ride past each other prior to the catch member being received within the catch receiver.

The catch arrangement could take many other different forms.

The actuator can further include one or more abutments for terminating travel of the actuator within the lid. The abutments are arranged or positioned for engagement with abutment surfaces of the lid so that when the actuator reaches the home position, further travel of the actuator is terminated. Likewise, further abutments can be arranged or positioned so that when the actuator reaches the actuation position, further is terminated. The provision of abutments to terminate travel of the actuator at each of the home position and the actuation position, confines the extent to which the actuator can travel, or confines the allowable stroke of travel, and allows the bearing surface of the actuator to remain in permanent or constant contact with the drinking spout or straw assembly for permanent or constant biasing of the actuator towards the home position.

While the preference is for the bearing surface of the actuator to remain in permanent or constant contact with the drinking spout or straw assembly in the home position, it is to be appreciated that the actuator might lose contact with the spout or straw assembly in the home position, say due to manufacturing tolerances, or just over time as the drink bottle components wear. Thus, what is important is that the actuator be biased by the spout or straw assembly as the actuator moves from the home position to the actuation position so that upon release of the force displacing the actuator towards the actuation position, the spout or straw assembly biases the actuator back to the home position.

In some forms of the invention, the actuator is provided with a pair of abutments which extend in different directions, preferably opposite directions, for engagement with different abutment surfaces of the lid. This arrangement is most relevant to the abutments that terminate travel of the actuator at the home position, as it has the advantage that if the drink bottle is dropped for example, or suffers a sudden impact, if one of the abutments of the actuator dislodges from the abutting surface, the other of the abutments will retain abutting engagement with the other abutment surface and so the actuator will retain its position in the home position. In this example, if only one abutment were provided and that abutment became dislodged from the abutting surface, the actuator may become completely free from the lid and perhaps become lost or damaged.

The actuator can have an abutment at our adjacent the push face. That abutment can take any suitable form and can for example be or include a lip that engages a facing surface of the lid when the actuator is in the actuation position. Where the actuator has an upstanding catch as described earlier, the upstanding catch can engage with a surface of the lid when the actuator is in the actuation position. This can be in addition to a lip that is provided adjacent the push face.

The applicant has developed actuators that have particular constructions that provides advantages in operation. In one form of actuator, the actuator has a push face as required and a depending body that has the bearing surface formed at a portion of the body remote from the push face. In another form of actuator, the actuator has a push face as required and has two depending components comprising a pair of legs that are spaced apart. The legs extend generally in the same direction and away from the push face. One or each of the legs can include a bearing surface for bearing engagement with the drinking spout or straw assembly. The bearing surface can be formed at an end of one of the legs or at the ends of each leg remote from the push face. The bearing surface formed by one of the legs or by each leg can be slightly curved convexly for increased surface engagement with the surface of the drinking spout or straw assembly. Where the bearing surface is formed at the ends of each leg, the bearing surface can be formed in two parts that are separated by a gap whereby the gap is formed by a spacing between the pair of legs. The legs can be symmetrical about a centre line between them. The legs can include abutments for abutting abutment surfaces of the lid when the actuator is in the home position to locate the actuator in the home position.

The actuator can alternatively have a push face as required and three depending components comprising a pair of side legs and an intermediate body. The body and the side legs extend generally in the same direction and away from the push face. The side legs can be symmetrical about the body, so that the body is central between the side legs, although that is not essential.

In the above form of actuator, the body can include the bearing surface for bearing engagement with the drinking spout or straw assembly. The bearing surface can be formed at an end of the body remote from the push face. The bearing surface can be slightly curved convexly for increased surface engagement with the surface of the drinking spout or straw assembly. The side legs can be spaced from the body and the side legs can include abutments for abutting abutment surfaces of the lid when the actuator is in the home position to locate the actuator in the home position.

In each of the above arrangements, the legs can be arranged for flexing movement so that when the actuator is inserted into the lid, the legs flex inwardly from a relaxed or resting position to allow insertion and once inserted, the legs return to the relaxed or resting position with the abutments of the legs in abutting engagement with the abutment surfaces of the lid and the bearing surface of the legs or the body in bearing engagement with the spout or straw assembly. The spout or straw assembly thus biases the actuator towards the home position and thus biases the abutments of the legs into abutting engagement with the abutment surfaces of the lid. This form of actuator can include a catch arrangement of the kinds discussed above.

In the above forms of actuator, the legs can be captured at least partially in grooves, slots or channels formed in the internal surfaces of the lid, such as in an opening formed in the lid to receive the actuator, to guide the actuator during sliding travel between the home and actuation positions.

The drinking spout or straw assembly can have a drinking portion that extends from the inner lid and from which a person can drink, and which is captured between the inner and outer lids when the outer lid is in the closed position. That drinking portion of the spout or straw assembly can be collapsed in the closed position of the outer lid and upon release of the outer lid the resilient flexibility of the drinking portion can be operable to drive or shift the outer lid to the open position once it is released from the closed position by actuation of the actuator. The outer lid can spring to the open position as a result of resilient recovery of the drinking portion from the collapsed condition.

The above discussion illustrates the use of an actuator that has a bearing surface in bearing engagement with the spout or straw assembly of a drink bottle and the manner in which that arrangement can be employed in the opening and closing of a drink bottle lid that has both an inner lid and an outer lid. It is to be appreciated however that the invention can have other applications such as described above in relation to securing the lid (of any form) to the container of a drink bottle, venting a drink bottle, acting as a fidget, and forming part of a closure mechanism for a container that is formed as part of the drink bottle lid.

It should also be appreciated that the reference to liquid in this specification is intended to include low and high viscosity drinkable liquids that can be sucked through a straw or spout.

In order that the invention may be more fully understood, some embodiments will now be described with reference to the figures in which:.

<FIG> illustrate perspective view of a drink bottle <NUM> according to one embodiment of the present invention. The drink bottle <NUM> is shown in <FIG> with the lid <NUM> of the bottle <NUM> in a closed condition and in <FIG> with the lid <NUM> in an open condition. <FIG> illustrates the drink bottle <NUM> in exploded view.

The drink bottle <NUM> includes a container <NUM> that in use will contain a quantity of fluid for drinking purposes. As shown in <FIG>, the container <NUM> has an open end <NUM> and the lid <NUM> is removably connected to the open end <NUM> by a screw threaded arrangement. Inserted between the lid <NUM> and the open end <NUM> is a resiliently flexible drinking spout or straw assembly <NUM> (hereafter "drinking spout") which includes a circular gasket <NUM>, a hollow neck <NUM> and a hollow drinking portion <NUM>. The gasket <NUM> is sandwiched between facing sealing surfaces of the open end <NUM> and the lid <NUM>, to provide a liquid seal between the container <NUM> and the lid <NUM> when the drink bottle <NUM> is assembled. This ensures that liquid that travels from the container <NUM> to the lid <NUM> passes through the neck <NUM> and into the drinking portion <NUM> without leakage.

The lid <NUM> includes an inner lid <NUM> and an outer lid <NUM>. The respective inner and outer lids <NUM> and <NUM> are connected by a hinged connection <NUM>.

The inner lid <NUM> includes an opening <NUM> for accepting and seating the neck <NUM> of the drinking spout <NUM>. The resilient flexibility of the spout <NUM> means that the spout <NUM> can be assembled to the inner lid <NUM> by being pushed through and into engagement within the opening <NUM> and this secures the spout <NUM> in place in relation to the inner lid <NUM>. Thus, the neck <NUM> is a tight fit within the opening <NUM> and the respective shapes of the opening <NUM> and the neck <NUM> are complementary.

As shown in <FIG>, the outer lid <NUM> can pivot about the hinge <NUM> to the open position shown in <FIG> and can likewise return to the closed position shown in <FIG>. As will be described later herein, the outer lid <NUM> can be retained in the closed position of <FIG> by a suitable catch mechanism that is associated with an actuator <NUM> (see <FIG>). The actuator <NUM> is mounted within the inner lid <NUM> for sliding movement between a home position shown in <FIG> and an actuation position (which will be described later herein). In the home position, the actuator <NUM> can secure the outer lid <NUM> in the closed condition relative to the inner lid <NUM> as shown in <FIG>, while inward movement of the actuator <NUM> to the actuation position releases the outer lid <NUM> to shift to the open condition shown in <FIG>. To shift between the home and actuation positions, the actuator <NUM> includes a push face <NUM> that can be pushed by finger pressure inwardly from the home position shown in <FIG>.

As will become apparent later herein, the drinking portion <NUM> is captured in a void between the inner and outer lids <NUM> and <NUM> when the lid <NUM> is in the closed position of <FIG>. However, when the outer lid <NUM> is released from retention to the inner lid <NUM> (so that it is not retained in the closed position) by inward movement of the actuator <NUM>, the resilient flexibility of the drinking portion <NUM> can be used to lift or drive the outer lid <NUM> to rotate about the hinge <NUM> to the open condition shown in <FIG>. The resilience of the drinking portion <NUM> can be such as to spring the outer lid <NUM> open once the actuator <NUM> releases the outer lid <NUM> so that manual pivoting of the outer lid <NUM> to the open position is not required.

When the outer lid <NUM> rotates in the opposite direction from the open position to the closed position, the outer lid <NUM> will collapse the drinking portion <NUM> and for this, the outer lid <NUM> includes an internal post <NUM> to engage and push on the drinking portion <NUM>. The free end <NUM> of the post <NUM> is curved convexly, tending to locate the drinking portion <NUM> centrally as it collapses and to resist the portion <NUM> from sliding out of engagement with the free end <NUM>.

An important aspect of the drink bottle <NUM>, is that the actuator <NUM> engages directly with a surface of the neck <NUM> of the drinking spout <NUM> in each of the open and closed conditions of the lid <NUM>, and by that permanent or constant contact or engagement, the actuator <NUM> is permanently or constantly biased towards the home position of <FIG>. Moreover, inward sliding movement of the actuator <NUM> is resisted by that engagement and the bias applied to the actuator <NUM> tends to return the actuator <NUM> to the home position. Thus, finger pressure applied to the push face <NUM> can displace the actuator <NUM> inwardly of the inner lid <NUM>, but once that pressure is released, the actuator <NUM> will return to the original position (the home position) from which the actuator <NUM> was initially pushed or displaced. As discussed earlier, this arrangement is relatively simple when compared to prior art arrangements, in that there is no requirement in the drink bottle <NUM> for a separate spring part to act on the actuator <NUM>, and the actuator <NUM> is not formed from a pair of separate components that are connected together for pivoting movement.

The mechanism by which operation of the actuator <NUM> occurs is shown in more detail in <FIG> which illustrates the lid <NUM> of the drink bottle <NUM> and only the upper portion of the container <NUM> which connects to the lid <NUM>. <FIG> show the lid <NUM> in a closed condition while <FIG> shows the lid <NUM> in an open condition. <FIG> thus show the drinking portion <NUM> of the drinking spout <NUM> collapsed and captured in a void between the inner and outer lids <NUM> and <NUM>.

The actuator <NUM> is slidably mounted within the inner lid <NUM> and so the actuator <NUM> remains with the inner lid <NUM> regardless of whether the outer lid <NUM> is in the closed or open position. <FIG> show upper and lower surfaces of the opening within which the actuator <NUM> is captured. Side edges of the actuator <NUM> are captured in grooves, slots or channels formed in the lid <NUM>. Thus, as shown in <FIG>, the actuator <NUM> is received within the opening <NUM> of the inner lid <NUM> and the actuator <NUM> is mounted for sliding movement within that opening <NUM>. The opening <NUM> is open at or through a side wall of the inner lid <NUM> so that the push face <NUM> is accessible for the application of finger pressure.

The end <NUM> of the actuator <NUM> forms a bearing surface for bearing engagement with a surface of the drinking spout <NUM>. In <FIG>, the surface of the spout <NUM> is the front surface <NUM> of the neck <NUM>. As shown in <FIG>, the bearing surface <NUM> of the actuator <NUM> faces the front surface <NUM> of the neck <NUM>, but is slightly spaced from that surface. In <FIG>, the actuator <NUM> has been shifted under finger pressure and thus has moved into contact with the surface <NUM>. That contact is such as to resist inward movement of the actuator <NUM> within the opening <NUM>.

<FIG> also shows that the actuator <NUM> includes an upstanding catch <NUM> that is upstanding from an upper surface of the body <NUM> of the actuator <NUM> as shown in the orientation of the drink bottle <NUM> and the lid <NUM> in the figures, and that includes a lateral catch member <NUM>. Likewise, the outer lid <NUM> includes a catch receiver <NUM> and as shown in <FIG>, the catch member <NUM> and the catch receiver <NUM> interact in the closed position of the outer lid <NUM> to retain the outer lid <NUM> in that position. The cooperating engagement between the catch member <NUM> and the catch receiver <NUM> is facilitated by the bias or load applied to the actuator <NUM> by the drinking spout <NUM> through the engagement of the bearing surface <NUM> of the actuator <NUM> with the front surface <NUM> of the spout <NUM>. That engagement tends to retain the cooperation between the catch member <NUM> and the catch receiver <NUM>. For example, in <FIG>, movement of the actuator <NUM> in a direction to disconnect the catch member <NUM> from the catch receiver <NUM> will cause the bearing surface <NUM> of the actuator <NUM> to engage the neck <NUM> of the spout <NUM> and to prevent disconnection.

In <FIG>, a push force has been applied to the push face <NUM> of the actuator <NUM> to cause the actuator <NUM> to slide inwardly relative to the inner lid <NUM> and the outer lid <NUM>. The push force would ordinarily be applied by the thumb of a person wanting to drink from the drink bottle <NUM>, although of course any finger can be used to apply pressure, or alternatively, pressure could be applied by different means if finger pressure is not available.

In <FIG>, the inward movement of the actuator <NUM> has shifted the catch member <NUM> from cooperation with the catch receiver <NUM>. Moreover, the inward movement of the actuator <NUM> has shifted the bearing surface <NUM> inwardly against the surface <NUM> of the drinking spout <NUM>, and that movement of the actuator <NUM> has caused visible deformation of the neck <NUM>. That resilient deformation of the drinking spout <NUM> is such as to increase the biasing load applied to the actuator <NUM> through the bearing surface <NUM>, tending to push the actuator <NUM> back to the home position.

As a result of the catch member <NUM> being displaced from the catch receiver <NUM>, the outer lid <NUM> is free to pivot about the hinge <NUM> to an open position as shown in <FIG>. That pivoting movement can either be manually achieved by the person using the drink bottle <NUM> lifting the outer lid <NUM>, or alternatively, the resilient recovery of the drinking portion <NUM> of the drinking spout <NUM> from the collapsed condition of <FIG> will force the outer lid <NUM> to open in the absence of a force or load retaining the outer lid <NUM> in the closed position. In practice, if there is no load tending to maintain the outer lid <NUM> in the closed position, as soon as the lateral catch member <NUM> is free of the catch receiver <NUM>, the outer lid <NUM> will spring open under the resilient recovery of the drinking portion <NUM> and the drinking portion will present for use as shown in <FIG>.

The applicant has developed different actuators that have different constructions. A first form of actuator <NUM> has already been described in relation to <FIG>. That actuator <NUM> has a push face <NUM>, a bearing surface formed at the end <NUM>, and an upstanding catch <NUM> upstanding from the body <NUM>. The body <NUM> is a single part component and the sides of the body <NUM> are at least partially captured in grooves, slots or channels formed in the internal surfaces of the lid to guide the actuator during sliding travel between the home and actuation positions. Two different forms of actuator that are different in construction to the actuator <NUM> are shown in <FIG> and <FIG>.

The actuator <NUM> shown in <FIG> is equivalent to the actuator <NUM> shown in <FIG>, and includes a push face <NUM>, a pair of side legs <NUM> and a central body <NUM>. Remote from the push face <NUM>, the central body <NUM> includes a convexly curved free end <NUM> for engagement with the front surface <NUM> of the neck <NUM> of the drinking spout <NUM>.

Also remote from the push face <NUM>, are laterally extending abutments <NUM> which, as shown in <FIG> extend laterally to overlie abutment surfaces <NUM> of the inner lid <NUM>. In this respect, portions of the side legs <NUM> are captured within channels formed internally of the inner lid <NUM> to guide sliding movement of the actuator <NUM> between home and actuation positions. The abutments <NUM> are not captured within those channels and therefore bear against end surfaces (the abutment surfaces <NUM> of the channels) when the actuator <NUM> is in the home position as shown in <FIG>. Moreover, the actuator <NUM> includes a lip <NUM> adjacent the push face <NUM> that faces opposite abutment surfaces <NUM> of the inner lid <NUM> and thus it will be readily evident from <FIG>, that the actuator <NUM> has limited travel between respective engagement between the abutment <NUM> and the abutment surfaces <NUM>, and the lip <NUM> and the abutment surface <NUM>.

<FIG> also show the interaction or cooperation of the body <NUM> and the neck <NUM> of the drinking spout <NUM>. In <FIG>, the actuator <NUM> is in the home position and so the lip <NUM> is in engagement with the abutment surfaces <NUM>. The abutments <NUM> are spaced from the abutment surfaces <NUM>. The neck <NUM> is cylindrical and relatively undeformed by any pressing contact with the bearing surface <NUM> of the body <NUM>. That is, in the home position, there is only light engagement between the bearing surface <NUM> and the neck <NUM>, and so the natural cylindrical configuration of the neck is largely undisturbed. However, in <FIG>, the actuator <NUM> has been pushed inwardly, so that now, the actuator <NUM> is in the actuation position and so the lip <NUM> is spaced from the abutment surfaces <NUM> and the abutments <NUM> have engaged the abutment surfaces <NUM>. By that engagement, further inward travel of the actuator <NUM> is terminated.

The inward travel of the actuator <NUM> has also caused resilient deformation of the neck <NUM> so that the neck <NUM> is no longer cylindrical. The neck is biasing the actuator <NUM> towards the home position against the pushing force being applied to the actuator <NUM>.

<FIG> also show that the side legs <NUM> need to flex inwardly so that the abutments <NUM> can pass through the channels the inner lid <NUM> in which the side legs <NUM> are captured for sliding movement, given that the abutments <NUM> extend laterally a greater distance than the side surfaces <NUM> side legs <NUM>. Thus, to insert the side legs <NUM> into the channels, the side legs <NUM> flex inwardly from a relaxed or resting position and once inserted, the side legs <NUM> return to the relaxed or resting position with the abutments <NUM> in facing relationship with the abutment surfaces <NUM>. By this arrangement, the actuator <NUM> is captured in place in the lid <NUM> for limited sliding movement.

<FIG> show an alternative actuator <NUM> which includes a push face <NUM> and a pair of legs <NUM>. The free ends <NUM> and <NUM> of the legs <NUM> form a bearing surface for bearing against the front surface <NUM> of the neck <NUM> of the drinking spout <NUM> of the earlier figures. Abutments <NUM> are formed at the free ends of each of the legs <NUM> and a catch <NUM> is provided, having the same shape as the catch <NUM>.

It will be evident from <FIG>, that the actuator <NUM> has a different shape to the actuator <NUM> of <FIG>. Despite this, the actuator <NUM> operates effectively in the same manner to the actuator <NUM>. In <FIG>, the actuator <NUM> is in the home position, in which the abutments <NUM> bear against the abutment surfaces <NUM> of the inner lid <NUM>. Like the side legs <NUM> of the actuator <NUM>, the legs <NUM> are captured within channels formed internally of the lid <NUM> to guide sliding movement of the actuator between the home and actuation positions.

The actuator <NUM> is biased to the home position by bearing engagement with the neck <NUM> of the drinking spout <NUM>. This occurs through bearing engagement between the bearing surfaces <NUM> and <NUM> of the legs <NUM> and a facing surface of the neck <NUM>.

The actuator <NUM> can be pushed inwardly as shown in <FIG> by finger pressure applied to the push face <NUM> to displace the abutments <NUM> from the abutment surfaces <NUM>. This inward movement deforms the neck <NUM> as shown in <FIG> and increases the biasing influence of the neck <NUM> on the actuator <NUM>.

The actuator <NUM> operates substantially the same as the actuator <NUM>, except that the actuator <NUM> does not include a lip <NUM> for engagement with an abutment face <NUM> as shown in <FIG>. In contrast, inward movement of the actuator <NUM> is limited by abutting engagement between upstanding abutment <NUM> and an internal abutment of the inner lid <NUM>.

A further alternative form of drink bottle is illustrated in <FIG> shows an arrangement in which a lid <NUM> is attached to the container <NUM> and includes an inner lid <NUM> and an outer lid <NUM>. The inner lid <NUM> accommodates the same drinking spout <NUM> as previously described. The main difference between the inner lid <NUM> and the inner lid <NUM> previously described is that the inner lid <NUM> does not include an opening for accommodating the actuator <NUM>. In <FIG>, it can be seen that the inner lid <NUM> includes a bottom surface <NUM> on which the actuator <NUM> slides, but does not include an upper surface over the top of the actuator <NUM> in accordance with the opening <NUM> of the inner lid <NUM>. Sides of the actuator <NUM> would still be at least partially captured in grooves, slots or channels formed in the internal surfaces of the lid to guide the actuator during sliding travel between the home and actuation positions.

The drink bottles illustrated in the figures all incorporate an actuator for actuating a function of a drink bottle, in which the specific function of the figures is to retain an outer lid connected to an inner lid in the closed condition, or to release the outer lid from the inner lid in the open condition. Critical to that function is that the actuator has a bearing surface in bearing engagement with the spout or straw assembly of the drink bottle, such that movement of the actuator from the home position towards the actuation position resiliently deforms the spout or straw assembly and by the resilient deformation the actuator is biased towards the home position. This critical feature of the drink bottle of the figures is common to all forms of the present invention. This feature is considered to provide advantages in relation to reductions in the complexity of drink bottles.

Where any or all of the terms "comprise", "comprises", "comprised" or "comprising" are used in this specification (including the claims) they are to be interpreted as specifying the presence of the stated features, integers, steps or components, but not precluding the presence of one or more other features, integers, steps or components.

Claim 1:
A drink bottle (<NUM>) comprising;
a. a container (<NUM>) for containing a liquid and a removable lid (<NUM>),
b. the container (<NUM>) having an open end (<NUM>) and the lid (<NUM>) being removably connected to the open end (<NUM>), the lid (<NUM>) comprising an inner lid (<NUM>) and an outer lid (<NUM>), with the outer lid (<NUM>) being shiftable relative to the inner lid (<NUM>) between closed and open positions.
c. a resiliently flexible drinking spout or straw assembly (<NUM>) being mounted in the lid (<NUM>) for extraction of liquid from within the container (<NUM>) through the spout or straw assembly (<NUM>),
d. an actuator (<NUM>, <NUM>, <NUM>, <NUM>) for actuating a function of the drink bottle, the actuator being slidably mounted to the inner lid (<NUM>) for sliding movement between a home position and an actuation position, the actuator (<NUM>, <NUM>, <NUM>, <NUM>) having a push face (<NUM>, <NUM>, <NUM>) accessible from outside the lid for receiving finger pressure for displacing the actuator (<NUM>, <NUM>, <NUM>, <NUM>) from the home position toward the actuation position for performing a function of the drink bottle,
e. the actuator (<NUM>, <NUM>, <NUM>, <NUM>) cooperating with the outer lid (<NUM>) in the closed position of the outer lid to retain the outer lid (<NUM>) in the closed position and movement of the actuator (<NUM>, <NUM>, <NUM>, <NUM>) from the home position to the actuation position releasing that cooperation so that the outer lid (<NUM>) is released to shift to the open position,
f. the actuator(<NUM>, <NUM>, <NUM>, <NUM>) having a bearing surface in bearing engagement with the spout or straw such that movement of the actuator (<NUM>, <NUM>, <NUM>, <NUM>) from the home position towards the actuation position resiliently deforms the spout or strawand by the resilient deformation the actuator (<NUM>, <NUM>, <NUM>, <NUM>) is biased towards the home position.