Patent Publication Number: US-2023159235-A1

Title: Dispensing Lid

Description:
BACKGROUND 
     Various personal, liquid-dispensing containers and related covers or lids have been fabricated and sold over many decades. In the present day, such devices are often referred to generically as “water bottles,” though they frequently contain liquids other than water, or simply “bottles.” For many years, these personal, liquid-dispensing containers and their associated covers or lids, or water bottles, have been designed to meet the particular needs of users during their various events and activities. Water bottles have been designed to increase ease of use and comfort during drinking. For example, one water bottle described in CN Pat. App. No. 202023275216.9 shows in  FIG.  9    of that reference a recessed lid that accommodates a user&#39;s nose to decrease the degree to which a user tilts their head back to empty the water bottle into their mouth. 
     At times, designs to increase the ease of use nevertheless decrease the ease of cleaning. With more complex structures to meet user needs often comes more difficult cleaning, especially when storing liquids other than water. Accordingly, designs that increase the ease of cleaning would be beneficial. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Some embodiments are described below with reference to the following accompanying drawings. 
         FIG.  1    is an exploded, isometric view of a dispensing lid, according to one implementation, engaged with a liquid container. 
         FIG.  2    is a cross-sectional, isometric view of the dispensing lid in  FIG.  1   . 
         FIGS.  3 - 6    are isometric views of the dispensing lid in  FIG.  1    with a slider  2  in various positions and modes of operation. 
         FIG.  7    is an exploded, isometric view of a dispensing lid, according to another implementation, engaged with a liquid container. 
         FIG.  8   a    is an exploded, isometric view of a slider  52  of the dispensing lid in  FIG.  7   . 
         FIG.  8   b    is an isometric view of a spring  80  of the slider in  FIG.  8     a.    
         FIG.  9    is a side view of slider  52  of  FIG.  8     a.    
         FIGS.  10 - 13    are isometric views of the dispensing lid in  FIG.  7    with a slider  52  in various positions and modes of operation. 
         FIG.  14    is an isometric view of a dispensing lid, according to a further implementation. 
     
    
    
     DETAILED DESCRIPTION 
     One implementation for a dispensing lid that increases the ease of use as well as increases the ease of cleaning includes a removable slider with a detent enabling selection of a closed position, an open position, or removal from the lid. The removable slider disengages from the lid for easy cleaning of surfaces of the lid that interface with surfaces of the slider. Otherwise, residues may accumulate at the interface between the lid and the slider. Although known dispensing lids may include a slider, often the slider is pressed into place during manufacturing and is not considered removable by the user. Generally, attempted removal of such a slider results in damage to the slider, the lid, or both. 
     Even if a known slider might be removed without damage to the slider, the lid, or both, the opened and closed positions of known sliders are difficult to discern. Also, a known slider could accidentally slip into an open position when intended to remain a closed positon due to a weak engagement with the lid when in the closed position. The accidental opening may result in spillage. Similarly, a slider may accidentally slip past an open position and detach from the lid due to a weak engagement with the lid upon reaching the open position. The accidental detachment may result in soiling, damage, or loss of the slider. 
     Some examples described herein provide a detent on the slider. The detent may include a wall extending from the slider and a lever attached to the slider at a pivot and in an orientation opposing the wall with a gap between the lever and the wall when the lever is in a released position. A pawl extends from the lever and a catch extends from the pawl. The catch engages a first stop in the lid when the slider is in the closed position with the lever released, engages a second stop in the lid when the slider is in the open position with the lever released, and does not engage the lid when the slider is removed. 
     Therefore, some implementations described herein include a detent that provides a robust engagement with the lid. The detent may retain the slider in the closed position unless positively disengaged and may retain the slider in the open position unless positively disengaged. Accordingly, spilling of contents and soiling, damage, or loss of the slider may be reduced while still permitting slider removal, such as for cleaning. 
       FIGS.  1 - 6    show an example implementation described herein as lid  1 . Lid  1  is a dispensing lid for use with a liquid container.  FIG.  1    shows a container  46  engaged with lid  1  in sealing association. A variety of containers may be engaged with lid  1  for holding a variety of liquids, such as water. A port  4  through lid  1  allows dispensing of liquids from container  46 . A slider  2  in sliding engagement with lid  1  may be selectively movable between a closed position that closes port  4 , an open position that opens port  4 , and removal from lid  1 .  FIGS.  2  and  3    show slider  2  in a closed position while  FIG.  5    shows slider  2  in an open position. 
     A variety of structures is conceivable that enable sliding engagement of slider  2  with lid  1 . As an example,  FIGS.  1 - 6    show one implementation with a sliding engagement that includes a pair of tracks  22  in lid  1 . One track of the pair is not fully visible in  FIGS.  1 - 6   . Slider  2  includes a corresponding pair of tabs  24  on opposing sides of slider  2  that engage with tracks  22 . As another example,  FIGS.  1 - 6    show one implementation with tracks  22  and tabs  24  curved. Alternatively, the tracks and tabs could be linear. 
     Tracks  22  are in a recess  26  forming a portion of lid  1  with a lower elevational level compared to surrounding portions of lid  1 . In some implementations, tracks extend upward, as shown for tracks  22  in  FIG.  2   . Additionally, as shown in  FIG.  2   , tracks  22  may extend from a low point approximately in the middle of recess  26  upward toward a rim  32  of lid  1 . That is, from the approximate middle, tracks  22  extend upward to port  4  next to rim  32 , as well as upward in the opposite direction to rim  32  on the side of lid  1  opposite port  4 . 
     Slider  2  has a detent  6  that includes a wall  10  extending from slider  2  and a lever  8  attached to slider  2  at a pivot  14 . Lever  8  is in an orientation opposing wall  10  with a gap  34  between lever  8  and wall  10  when lever  8  is in a released position, as shown in  FIGS.  2 ,  3 , and  5   . Detent  6  further includes a pawl  12  extending from lever  8  and a catch  16  extending from pawl  12 . Catch  16  engages a first stop  18  in lid  1  when slider  2  is in the closed position with lever  8  released. Catch  16  engages a second stop  20  in lid  1  when slider  2  is in the open position with lever  8  released. Catch  16  does not engage lid  1  when slider  2  is removed.  FIGS.  2  and  3    show slider  2  in the closed position with lever  8  released and  FIG.  5    shows slider  2  in the open position with lever  8  released. 
     A gasket  28 , shown in the exploded view of  FIG.  1   , may fit into slider  2 , as shown in  FIG.  2   , and provide a seal over port  4 , retaining liquids within container  46 , or some other container that may engage with lid  1 . A variety of structures may be relied upon to engage lid  1  with a liquid container. In some implementations, as shown in  FIGS.  2  and  3 - 6   , threads  30  may engage lid  1  with a liquid container. As such, port  4  may be formed through a top wall of lid  1  and lid  1  may further include a circumscribing side wall  36  extending from the top wall. Lid  1  may selectively detach from the liquid container and engage side wall  36  with the liquid container in sealing association. 
     In  FIGS.  2  and  3 - 6   , threads  30  are shown on an external side of side wall  36 . A corresponding threaded structure may be provided on an internal wall of a liquid container. In contrast, threads  30 , or a similar threaded engagement, may instead be provided on an internal side of side wall  36 . A corresponding threaded structure may be provided on an external wall of a liquid container. A gasket (not shown) might be provided between lid  1  and a liquid container to seal the engagement. 
     Recess  26  in lid  1  accommodates a user&#39;s nose to decrease the degree to which a user tilts their head back to dispense liquid into their mouth. In  FIGS.  1 - 6   , recess  26  is formed in a portion of lid  1  with a lower elevational level compared to surrounding portions of lid  1 . Port  4  is positioned in recess  26 , as is slider  2  when in the closed position, as apparent from  FIGS.  2  and  3   . 
     From the closed position in  FIG.  3   ,  FIG.  4    shows pinching lever  8  together with wall  10 , closing gap  34 , and disengaging catch  16  from first stop  18 . With catch  16  disengaged, slider  2  is movable to second stop  20 , the open position. Once slider  2  moves past first stop  18 , a user may release lever  8  and simply push wall  10  toward second stop  20 . In some implementations, the pivot biases the lever into the released position. With lever  8  biased, a user pushing wall  10  from first stop  18  toward second stop  20  after releasing catch  16  may recognize when catch  16  “snaps” into second stop  20 . 
     As one example of a biased lever,  FIG.  2    shows pivot  14  with a living hinge biasing lever  8  into the released position. As the term is used herein, “living hinge” refers to a thin flexible hinge or flexure bearing connecting two features. The living hinge may be made from the same material as two rigid pieces that it connects and, in that sense, may be referred to as an “integral living hinge”, but integrality is otherwise not a requirement herein. For an integral living hinge, polypropylene might be selected as the continuous material in common among the components of slider  2 , including detent  6 , such as wall  10 , lever  8 , and pivot  14 . Pawl  14  and catch  16  might be formed from the same continuous material as well. Polypropylene may provide the flexibility and resilience that enable biasing lever  8  into the released position while still enduring the potentially damaging conditions of household dishwashing machines. 
       FIG.  5    shows slider  2  in the open position with catch  16  engaged with second stop  20  and lever  8  in the released position.  FIG.  6    shows pinching lever  8  together with wall  10 , closing gap  34 , and disengaging catch  16  from second stop  20 . With catch  16  disengaged, slider  2  may continue to slide along tracks  22 , removing slider  2  from lid  1 . Once slider  2  moves past second stop  20 , a user may release lever  8  and simply push wall  10  toward removal. 
     In some implementations, as shown in the example of  FIGS.  1 - 6   , tracks  22  extend upward from recess  26  to rim  32  of lid  1  from which the pair of tabs  24  may slide out of engagement through a pair of open ends  38  of tracks  22 . Slider  2  may return to lid  1  simply by re-engaging tabs  24  with tracks  22  and moving slider  2  into either the open position or the closed position. In some implementations, it is conceivable that more than one catch and/or more than two stops may be used. However, in the example of  FIGS.  1 - 6   , the catch consists of one catch  16 , the first stop consists of one first stop  18 , and the second stop consists of one second stop  20 . 
     As described herein, lid  1  of the example implementation increases the ease of use as well as increases the ease of cleaning with a removable slider having a detent enabling selection of a closed position, an open position, or removal from the lid. Therefore, spilling of contents and soiling, damage, or loss of the slider may be reduced while still permitting slider removal, such as for cleaning. 
       FIGS.  7 - 13    show an example implementation described herein as lid  51 . Lid  51  is a dispensing lid for use with a liquid container.  FIG.  7    shows a container  96  engaged with lid  51  in sealing association. A variety of containers may be engaged with lid  51  for holding a variety of liquids, such as water. A port  54  through lid  51  allows dispensing of liquids from container  96 . A slider  52  in sliding engagement with lid  51  may be selectively movable between a closed position that closes port  54 , an open position that opens port  54 , and removal from lid  51 .  FIG.  10    shows slider  52  in a closed position while  FIG.  12    shows slider  52  in an open position. 
     A variety of structures is conceivable that enable sliding engagement of slider  52  with lid  51 . As an example,  FIGS.  7 - 13    show one implementation with a sliding engagement that includes a pair of tracks  72  in lid  51 . One track of the pair is not visible in  FIGS.  7 - 13   . Slider  52  includes a corresponding pair of tabs  74  on opposing sides of slider  52  that engage with tracks  72 . As another example,  FIGS.  7 - 13    show one implementation with tracks  72  and tabs  74  curved. Alternatively, the tracks and tabs could be linear. 
     Tracks  72  are in a recess  76  forming a portion of lid  51  with a lower elevational level compared to surrounding portions of lid  51 . In some implementations, tracks extend upward, as shown for tracks  72  in  FIG.  1   . Additionally, as shown in  FIG.  1   , tracks  72  may extend from a low point approximately in the middle of recess  76  upward toward a rim  82  of lid  51 . 
     Slider  52  has a detent  56  that includes a wall  60  extending from slider  52  and a lever  58  attached to slider  52  at a pivot  64 . Lever  58  is in an orientation opposing wall  60  with a gap  84  between lever  58  and wall  60  when lever  58  is in a released position, as shown in  FIGS.  10  and  12   . Detent  56  further includes a pawl  62  extending from lever  58  and a catch  66  extending from pawl  62 . Catch  66  engages a first stop  68  in lid  51  when slider  52  is in the closed position with lever  58  released. Catch  66  engages a second stop  70  in lid  51  when slider  52  is in the open position with lever  58  released. Catch  66  does not engage lid  51  when slider  52  is removed.  FIG.  10    shows slider  52  in the closed position with lever  58  released and  FIG.  12    shows slider  52  in the open position with lever  58  released. 
     A gasket  78 , shown in the exploded view of  FIG.  7   , may fit into slider  52 , as shown in  FIG.  9   , and provide a seal over port  54 , retaining liquids within container  96 , or some other container that may engage with lid  51 . A variety of structures may be relied upon to engage lid  51  with a liquid container. In some implementations, as shown in  FIGS.  10 - 14   , threads  30  may engage lid  51  with a liquid container. As such, port  54  may be formed through a top wall of lid  51  and lid  51  may further include a circumscribing side wall  36  extending from the top wall. Lid  51  may selectively detach from the liquid container and engage side wall  36  with the liquid container in sealing association. 
     In  FIGS.  10 - 14   , threads  30  are shown on an external side of side wall  36 . A corresponding threaded structure may be provided on an internal wall of a liquid container. In contrast, threads  30 , or a similar threaded engagement, may instead be provided on an internal side of side wall  36 . A corresponding threaded structure may be provided on an external wall of a liquid container. A gasket (not shown) might be provided between lid  51  and a liquid container to seal the engagement. 
     Recess  76  in lid  51  accommodates a user&#39;s nose to decrease the degree to which a user tilts their head back to dispense liquid into their mouth. In  FIGS.  7 - 13   , recess  76  is formed in a portion of lid  51  with a lower elevational level compared to surrounding portions of lid  51 . Port  54  is positioned in recess  76 , as is slider  52  when in the closed position, as apparent from  FIG.  10   . 
     From the closed position in  FIG.  10   ,  FIG.  11    shows pinching lever  58  together with wall  60 , closing gap  84 , and disengaging catch  66  from first stop  68 . With catch  66  disengaged, slider  52  is movable to second stop  70 , the open position. Once slider  52  moves past first stop  68 , a user may release lever  58  and simply push wall  60  toward second stop  70 . In some implementations, the pivot biases the lever into the released position. With lever  58  biased, a user pushing wall  60  from first stop  68  toward second stop  70  after releasing catch  66  may recognize when catch  66  “snaps” into second stop  70 . 
     As one example of a biased lever,  FIGS.  8   a ,  8   b   , and  9  show pivot  64  with a spring  80  biasing lever  58  into the released position. Pivot  64  includes an extension  90  from wall  60 , a hole  92  through extension  90 , and a pin  86  though lever  58  and hole  92 . Pin  86  fixes lever  58  rotationally to extension  90 . Other rotationally fixing mechanisms are conceivable. In some implementations, a pin cap  87  may secure pin  86  in hole  92 . Other securing mechanisms are conceivable. In some implementations, as shown in the example of  FIGS.  8   a  and  8   b   , spring  80  may be a hidden double spring. That is, opposing coils of spring  80  may nest within opposing recesses  98  of extension  90 . Hole  92  may be centered within recesses  98 . 
       FIG.  12    shows slider  52  in the open position with catch  66  engaged with second stop  70  and lever  58  in the released position.  FIG.  13    shows pinching lever  58  together with wall  60 , closing gap  84 , and disengaging catch  66  from second stop  70 . With catch  66  disengaged, slider  52  may continue to slide along tracks  72  to a position where slider  52  may be lifted from lid  51 . Once slider  52  moves past second stop  70 , a user may release lever  58  and simply push wall  60  toward rim  82  before lifting slider  52  out of recess  76 . 
     In some implementations, as shown in the example of  FIGS.  7 - 13   , tracks  72  extend to a landing  94  within recess  76  from which tabs  24  may slide out of engagement through a pair of open ends  88  of tracks  72 . Slider  52  may return to lid  51  simply by re-engaging tabs  74  with tracks  72  and moving slider  52  into either the open position or the closed position. In some implementations, it is conceivable that more than one catch and/or more than two stops may be used. However, in the example of  FIGS.  7 - 13   , the catch consists of one catch  66 , the first stop consists of one first stop  68 , and the second stop consists of one second stop  70 . 
     As described herein, lid  51  of the example implementation increases the ease of use as well as increases the ease of cleaning with a removable slider having a detent enabling selection of a closed position, an open position, or removal from the lid. Therefore, spilling of contents and soiling, damage, or loss of the slider may be reduced while still permitting slider removal, such as for cleaning. 
     In a further implementation, some features of the implementation of  FIGS.  7 - 13    may be included in the implementation of  FIGS.  1 - 6   . For example,  FIG.  14    shows an implementation described herein as lid  1   a . Lid  1   a  is the same as lid  1  except that slider  2   a  is altered compared to slider  2 . Instead of detent  6  of  FIGS.  1 - 6   , slider  2   a  includes a detent  6   a  incorporating the features of detent  56  from  FIGS.  7 - 13   . Specifically, slider  2   a  replaces pivot  14  of  FIGS.  1 - 6    having a living hinge biasing lever  8  into the released position. Instead, slider  2   a  uses a pivot like that of pivot  64  from  FIGS.  7 - 13    having a spring  80   a  biasing a lever  8   a  into the released position. Lever  8   a  is in an orientation opposing wall  10  with a gap  34   a  between lever  8   a  and wall  10  when lever  8   a  is in a released position, as shown in  FIG.  14   . 
     Like  FIGS.  7 - 13    the pivot in  FIG.  14    includes an extension  90   a  from wall  10 , a hole (not shown) through extension  90   a , and a pin (not shown) though lever  8   a  and the hole. In the implementation of  FIG.  14   , extension  90   a  is like extension  90 , the hole is like hole  92 , and the pin is like pin  86 . The pin fixes lever  8   a  rotationally to extension  90   a . Detent  6   a  further includes a pawl  12   a  extending from lever  8   a  and a catch (not shown) like catch  16  extending from pawl  12   a . As with lid  1 , the catch of lid  1   a  engages a first stop (not shown) like first stop  18  when slider  2   a  is in the closed position with lever  8   a  released. 
     As described herein, lid  1   a  of the example implementation increases the ease of use as well as increases the ease of cleaning with a removable slider having a detent enabling selection of a closed position, an open position, or removal from the lid. Therefore, spilling of contents and soiling, damage, or loss of the slider may be reduced while still permitting slider removal, such as for cleaning. 
     Devices and Methods 
     The discoveries described herein identify a number of solutions that may be implemented in devices and methods also described herein. Multiple solutions may be combined for implementation, enabling still further devices and methods. The inventors expressly contemplate that the various options described herein for individual devices and methods are not intended to be so limited except where incompatible with other devices and methods. The features and benefits of individual devices herein may also be used in combination with methods and other devices described herein even though not specifically indicated elsewhere. Similarly, the features and benefits of individual methods herein may also be used in combination with devices and other methods described herein even though not specifically indicated elsewhere. 
     Device A is a dispensing lid for use with a liquid container. The lid includes a port through the lid, a slider in sliding engagement with the lid, and a detent on the slider. The slider is selectively movable between a closed position that closes the port, an open position that opens the port, and removal from the lid. The detent includes a wall extending from the slider, a lever attached to the slider at a pivot, a pawl extending from the lever, and a catch extending from the pawl. The lever is in an orientation opposing the wall with a gap between the lever and the wall when the lever is in a released position. The catch engages a first stop in the lid when the slider is in the closed position with the lever released, engages a second stop in the lid when the slider is in the open position with the lever released, and does not engage the lid when the slider is removed. 
     Additional features may be implemented in Device A. By way of example, the port may be through a top wall of the lid and the lid may further include a circumscribing side wall extending from the top wall, the lid being selectively detachable from the liquid container and engagable via the side wall with the liquid container in sealing association. The lid may include a recessed portion with a lower elevational level compared to surrounding portions of the lid, the port being positioned in the recess along with the slider, when in the closed position. 
     The sliding engagement may include a pair of tracks in the lid and the slider may further include a corresponding pair of tabs on opposing sides of the slider that engage with the pair of tracks. The pair of tracks and the pair of tabs may be curved. Additionally, the pair of tracks may be in a recessed portion of the lid with a lower elevational level compared to surrounding portions of the lid, the pair of tracks extending upward. In one implementation, the pair of tracks extend upward from the recessed portion to a rim of the lid from which the pair of tabs may slide out of engagement through a pair of open ends of the pair of tracks. In another implementation, the pair of tracks extend to a landing within the recessed portion of the lid from which the pair of tabs may slide out of engagement through a pair of open ends of the pair of tracks. 
     The catch may consist of one catch, the first stop may consist of one first stop, and the second stop may consist of one second stop. The pivot may bias the lever into the released position. In one implementation, the pivot may include a living hinge biasing the lever into the released position. In another implementation, the pivot includes an extension from the wall, a hole through the extension, a pin through the lever and the hole, and a spring biasing the lever into the released position. The pin may fix the lever rotationally to the extension. 
     The described additional features of Device A may also be implemented in other devices and methods herein. 
     Device B is a dispensing lid for use with a liquid container. The lid includes a port through the lid, a slider in sliding engagement with the lid, and a detent on the slider. The slider is selectively movable between a closed position that closes the port, an open position that opens the port, and removal from the lid. The sliding engagement includes a pair of tracks in the lid. The slider further includes a corresponding pair of tabs on opposing sides of the slider that engage with the pair of tracks. The detent includes a wall extending from the slider, a lever attached to the slider at a pivot, a pawl extending from the lever, and a catch extending from the pawl. The lever is in an orientation opposing the wall with a gap between the lever and the wall when the lever is in a released position, the pivot including a living hinge biasing the lever into the released position. The catch engages a first stop in the lid when the slider is in the closed position with the lever released, engages a second stop in the lid when the slider is in the open position with the lever released, and does not engage the lid when the slider is removed. 
     Additional features may be implemented in Device B. By way of example, the lid may further include a recessed portion with a lower elevational level compared to surrounding portions of the lid, the port being positioned in the recess along with the slider, when in the closed position. 
     The pair of tracks and the pair of tabs may be curved and the pair of tracks may be in a recessed portion of the lid with a lower elevational level compared to surrounding portions of the lid, the pair of tracks extending upward. Additionally, the pair of tracks may extend upward from the recessed portion to a rim of the lid from which the pair of tabs may slide out of engagement through a pair of open ends of the pair of tracks. 
     The described additional features of Device B may also be implemented in other devices and methods herein. 
     Device C is a dispensing lid for use with a liquid container. The lid includes a port through the lid, a slider in sliding engagement with the lid, and a detent on the slider. The slider is selectively movable between a closed position that closes the port, an open position that opens the port, and removal from the lid. The sliding engagement includes a pair of tracks in the lid. The slider further includes a corresponding pair of tabs on opposing sides of the slider that engage with the pair of tracks. The detent includes a wall extending from the slider, a lever attached to the slider at a pivot, a pawl extending from the lever, and a catch extending from the pawl. The lever is in an orientation opposing the wall with a gap between the lever and the wall when the lever is in a released position. The pivot includes an extension from the wall, a hole through the extension, a pin through the lever and the hole, and a spring biasing the lever into the released position. The pin fixes the lever rotationally to the extension. The catch engages a first stop in the lid when the slider is in the closed position with the lever released, engages a second stop in the lid when the slider is in the open position with the lever released, and does not engage the lid when the slider is removed. 
     Additional features may be implemented in Device C. By way of example, the lid may further include a recessed portion with a lower elevational level compared to surrounding portions of the lid, the port being positioned in the recess along with the slider, when in the closed position. 
     The pair of tracks and the pair of tabs may be curved and the pair of tracks may be in a recessed portion of the lid with a lower elevational level compared to surrounding portions of the lid, the pair of tracks extending upward. Additionally, the pair of tracks may extend to a landing within the recessed portion of the lid from which the pair of tabs may slide out of engagement through a pair of open ends of the pair of tracks. Alternatively, the pair of tracks may extend upward from the recessed portion to a rim of the lid from which the pair of tabs may slide out of engagement through a pair of open ends of the pair of tracks. 
     The described additional features of Device C may also be implemented in other devices and methods herein. 
     Although minima and maxima are listed for the above described ranges and other ranges designated herein, it should be understood that more narrow included ranges may also be desirable and may be distinguishable from prior art. Also, processing principles discussed herein may provide an additional basis for the lesser included ranges. 
     In compliance with the statute, the embodiments have been described in language more or less specific as to structural and methodical features. It is to be understood, however, that the embodiments are not limited to the specific features shown and described. The embodiments are, therefore, claimed in any of their forms or modifications within the proper scope of the appended claims appropriately interpreted in accordance with the doctrine of equivalents. 
     
       
         
           
               
             
               
                   
               
               
                 TABLE OF REFERENCE NUMERALS FOR FIGURES 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
            
               
                 1  
                 lid  
                 51  
                 lid  
                 1a  
                 lid  
               
               
                 2  
                 slider  
                 52  
                 slider  
                 2a  
                 slider  
               
               
                 4  
                 port  
                 54  
                 port  
                 6a  
                 detent  
               
               
                 6  
                 detent  
                 56  
                 detent  
                 8a  
                 lever  
               
               
                 8  
                 lever  
                 58  
                 lever  
                 12a  
                 pawl  
               
               
                 10  
                 wall  
                 60  
                 wall  
                 34a  
                 gap  
               
               
                 12  
                 pawl  
                 62  
                 pawl  
                 80a  
                 spring  
               
               
                 14  
                 pivot  
                 64  
                 pivot  
                 90a  
                 extension  
               
               
                 16  
                 catch  
                 66  
                 catch  
                   
                   
               
               
                 18  
                 first stop  
                 68  
                 first stop  
                   
                   
               
               
                 20  
                 second stop  
                 70  
                 second stop  
                   
                   
               
               
                 22  
                 track  
                 72  
                 track  
                   
                   
               
               
                 24  
                 tab  
                 74  
                 tab  
                   
                   
               
               
                 26  
                 recess  
                 76  
                 recess  
                   
                   
               
               
                 28  
                 gasket  
                 78  
                 gasket  
                   
                   
               
               
                 30  
                 threads  
                 80  
                 spring  
                   
                   
               
               
                 32  
                 rim  
                 82  
                 rim  
                   
                   
               
               
                 34  
                 gap  
                 84  
                 gap  
                   
                   
               
               
                 36  
                 side wall  
                 86  
                 pin  
                   
                   
               
               
                 38  
                 open end  
                 87  
                 pin cap  
                   
                   
               
               
                 46  
                 container  
                 88  
                 open end  
                   
                   
               
               
                   
                   
                 90  
                 extension  
                   
                   
               
               
                   
                   
                 92  
                 hole  
                   
                   
               
               
                   
                   
                 94  
                 landing  
                   
                   
               
               
                   
                   
                 96  
                 container  
                   
                   
               
               
                   
                   
                 98  
                 recess