Patent Publication Number: US-10787297-B2

Title: Child-resistant canister

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
     This application is a continuation of U.S. application Ser. No. 15/299,676, filed Oct. 21, 2016, which claims priority under 35 U.S.C. § 119(e) to U.S. Provisional Application No. 62/244,373, filed Oct. 21, 2015, each of which is expressly incorporated by reference herein. 
    
    
     BACKGROUND 
     The present disclosure relates to a canister, and particularly to a canister including a container and a removable closure. More particularly, the present disclosure relates to a child-resistant canister. 
     SUMMARY 
     According to the present disclosure, a child-resistant canister includes a container and a closure configured to mount on the container to close an opening into product-receiving chamber formed in the container. The closure includes a lid and a lid anchor coupled to the lid. The lid anchor is configured to mate with a closure retainer included in the container to retain the closure in a mounted position on the container. 
     In illustrative embodiments, the child-resistant canister further includes a closure-release control mechanism. The closure-release control mechanism includes a first lock tab coupled to the lid and a companion stationary tab blocker coupled to the container. A passageway is formed through the lid and lid anchor to allow movement of the lock tab relative to the tab blocker to remove the lock tab from engagement with the tab blocker at the selection of a user and allow removal of the closure from the container. 
     Additional features of the present disclosure will become apparent to those skilled in the art upon consideration of illustrative embodiments exemplifying the best mode of carrying out the disclosure as presently perceived. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The detailed description particularly refers to the accompanying figures in which: 
         FIG. 1  is a perspective view of a child-resistant canister in accordance with the present disclosure showing a closure mounted on an underlying container and suggesting that an adult user may apply a squeezing force (solid double arrows) to opposite sides of the closure to engage a child-resistant closure-release control mechanism provided in the canister so that the closure is free to rotate in a counterclockwise closure-removal direction from a closed position shown in  FIGS. 1 and 5  toward an opened position in a manner suggested, for example, in  FIGS. 13-14 ; 
         FIG. 2  is an enlarged partial perspective view of the canister of  FIG. 1  showing the closure prior to installation on the container and showing one of the upwardly extending triangle-shaped tab blockers included in the closure-release control mechanism and suggesting that one of the two long downwardly extending lock tabs included in the closure-release control mechanism is arranged to mate with its companion triangle-shaped tab blocker when the closure is mounted on the container in the manner suggested in  FIGS. 8-12  to lock the closure to the container so that closure resists opening by a child; 
         FIG. 3  is an enlarged perspective view of an underside of the closure of  FIGS. 1 and 2  showing that the closure includes a lid comprising a top wall, two side walls coupled to the top wall and separated by passageways, two shorter tab-mover walls coupled to the top wall and located within the passageways, a first lock tab included in the closure-release control mechanism is coupled to the tab-mover wall in an upper-right portion of  FIG. 3 , and a second lock tab included in the closure-release control mechanism is coupled to the tab-mover wall in a lower-left portion of  FIG. 3  and showing that the closure further includes a first lid anchor and a second lid anchor which are also separated by the passageways; 
         FIG. 4  is a view similar to  FIG. 3  with the closure rotated counterclockwise showing that slots are formed between the tab-mover walls and the side walls of the closure to allow movement of the tab-mover walls relative to the side walls within the passageways; 
         FIG. 5  is a sectional view taken along line  5 - 5  in  FIG. 1  showing the closure coupled on the container and suggesting that the second lid anchor (positioned behind the filler neck) engages with the closure retainer to hold the closure on the container such that the top wall covers the opening into the product-receiving chamber; 
         FIG. 6  is a view similar to  FIG. 5  showing the closure in spaced-apart relation above the container prior to attachment of the closure and suggesting that the second lock tab (shown on the left) is positioned at a similar radial distance from an axis of rotation of the closure as the second tab blocker; 
         FIG. 7  is a bottom plan view of the closure of  FIG. 2  showing the lock tabs in a first position and suggesting that a squeezing force (phantom double arrow) applied by an adult to the tab-mover walls flexes the tab-mover walls inward to move the lock tabs toward the axis of rotation through the passageway to a second position at a similar radial distance as the lid anchors to separate the lock tabs from engagement with the tab blockers as suggested in  FIG. 8 . 
         FIG. 8  is a top plan view of the container of  FIG. 2  diagrammatically showing the lock tabs of the closure in the first position engaging the tab blockers to block rotation of the closure and suggesting that the lock tabs are separated from the tab blockers when in the second position so that rotation and removal of the closure is permitted; 
         FIGS. 9-12  are a series of views showing movement of the lock tabs on the closure relative to the companion triangle-shaped tab blockers on the container during installation of the closure on the container and suggesting that rotation of the container increases as a double phantom ( FIG. 9 ) arrow transitions to a double solid arrow ( FIG. 12 ); 
         FIGS. 13 and 14  are a series of views showing movement of the lock tabs relative to the companion triangle-shaped tab blockers during removal of the closure from the container; 
         FIG. 15  is a view similar to  FIG. 3  showing a liner positioned to lie along a top wall of the closure; 
         FIG. 16  is a sectional view taken along line  16 - 16  in  FIG. 15 ; and 
         FIG. 17  is a partial perspective view of another embodiment of a closure in accordance with the present disclosure showing that the closure includes thin, deformable webs extending between side walls of the closure and tab-mover walls of the closure. 
     
    
    
     DETAILED DESCRIPTION 
     A child-resistant canister  10  in accordance with the present disclosure provides for maximized filling speed while minimizing a short and squatty appearance of child-resistant canister  10 . Child-resistant canister  10  accomplishes this by maximizing the ID of the container while minimizing the OD 1  of the closure. Thus, the competing interests of filling speed and appearance of child-resistant canister  10  are satisfied. Passageways  27 ,  29  formed in a closure of child-resistant canister  10  minimize weight of closure  16  while allowing the OD 1  of closure  16  to be minimized such that smaller bottle footprints can be used without overhang of closure  16 . 
     Child-resistant canister  10  includes a container  12  formed to include a product-receiving chamber  14  and removable closure  16  configured to mount on top of container  12  and cover an opening  18  formed in container  12  as suggested in  FIGS. 1 and 5 . Child-resistant canister  10  further includes a child-resistant closure-release control mechanism  20  comprising a first lock tab  21  coupled to closure  16  and a companion first tab blocker  28  coupled to container  12  and configured to mate with first lock tab  21  as suggested in  FIGS. 2 and 8 . Canister  10  may have any suitable shape, such as cylindrical, circular, round, square, polygonal, or any other suitable alternative. 
     During installation of closure  16  on container  12 , as suggested in  FIGS. 9-12 , closure  16  is rotated about axis of rotation A in a clockwise closure-installation direction relative to the underlying container  12  and first lock tab  21  of closure-release control mechanism  20  is moved into a lock-tab pass-through channel  24  formed between first tab blocker  28  of closure-release control mechanism  20  and a filler neck  40  of container  12 . Stationary tab blocker  28  is arranged to block normal rotation of closure  16  in a counterclockwise closure-removal direction about axis A relative to container  12  as suggested in  FIGS. 8 and 12 . In some embodiments, the closure-installation direction is counterclockwise while the closure-removal direction is clockwise. 
     First lock tab  21  is moved in a radially inward direction toward axis A to separate first lock tab  21  from stationary tab blocker  28  when an adult applies squeezing forces to closure  16  as suggested in  FIGS. 1, 7-8, and 13-14  to initiate removal of closure  16  from container  12 . Once first lock tab  21  is separated from stationary tab blocker  28  as shown in  FIG. 14 , closure  16  is free to rotate about axis A in a counterclockwise closure-removal direction when the adult applies an input force, such as twisting forces (i.e., torque), for example, to closure  16  in an effort to remove closure  16  from container  12 . A passageway  27  formed in closure  16  allows lock tab  21  to be disengaged from tab blocker  28  while minimizing an overall outer diameter (OD) of closure  16  for a given inner diameter (ID) associated with filler neck  40 . 
     Container  12  includes a body  38  and filler neck  40  coupled to body  38  as shown, for example, in  FIG. 2 . Filler neck  40  is formed to include open mouth  18  (also called opening  18 ) arranged to open into product-receiving chamber  14  formed in body  38  as suggested in  FIG. 2 . Filler neck  40  includes a rim  42  coupled to body  38  and a closure retainer  44  coupled to rim  42  and configured to mate with closure  16  to retain closure  16  in an installed position on container  12  as suggested in  FIG. 5 . In one example, rim  42  is cylindrical, but rim  42  may be any other suitable shape. 
     Closure retainer  44  is coupled to exterior surface  43  of filler neck  40  as shown in  FIG. 2 . In this illustrative embodiment, closure retainer  44  comprises one or more thread segments that are configured to engage corresponding threads or thread segments on closure  16 . In another example, closure  16  may include any other suitable closure mechanisms such as, but not limited to, cams, bayonet style closures elements, or any other suitable alternative or combination. 
     In some embodiments, closure retainer  44  comprises one or more slots for receiving one or more keys of the closure. In some embodiments, closure retainer  44  comprises one or more camways for receiving one or more cams of the closure. Closure retainer  44  and rim  42  cooperate to form a monolithic, one piece, or unitary element in the illustrated embodiment. In some embodiments, closure  16  is mounted on container  12  through rotation of closure  16  relative to container  12 . Closure  16  may be dismounted from container  12  using a reverse rotation. In some embodiments, an axial, linear, transverse, or sliding movement may be used alternatively to or in combination with rotation to mount closure  16  on container  12 . Closure  16  may be dismounted from container  12  using a reverse movement or combination of movements. 
     Closure  16  includes a lid  50 , a first lid anchor  51 , and a second lid anchor  52  as shown, for example, in  FIGS. 2-4 . First lock tab  21  is coupled to lid  50  and arranged to lie in an interior region  54  formed in lid  50  as suggested in  FIGS. 2-4 . First lid anchor  51  is configured to mate with companion closure retainer  44  during installation of closure  16  on container  12  as suggested in  FIGS. 2 and 5-7  to retain lid  50  in a mounted position on filler neck  40  closing open mouth  18  of container  12 . Second lid anchor  52  is also configured to mate with closure retainer  44 . In some embodiments, a liner is positioned to lie along a top wall  500  between first and second lid anchors  51 ,  52  to assist in sealing against rim  42  of container  12  to cover open mouth  18 . 
     In some embodiments, an oversized, floating (non-glued) liner  55  is positioned to lie along top wall  500  as shown in  FIGS. 15 and 16 . The thread segments of lid anchors  51 ,  52  terminate before reaching top wall  500 , as shown by lid anchor  51 . This allows the thread segments of anchors  51 ,  52  to act as an undercut or mechanical stop for liner  55  once liner  55  is positioned to lie along top wall  500  between the end of the thread segments and top wall  500 . Liner  55  can be oversized relative to opening  18  of filler neck  40  which allows the placement of liner  55  to vary relative to filler neck  40  while still forming a seal with rim  42 . 
     Lid  50  includes top wall  500  and first and second tab-mover walls  501 ,  502  coupled to top wall  500  and arranged to lie in spaced-apart relation to one another as shown in  FIGS. 2-4 and 7 . Lid  50  also includes two side walls  503 ,  504  coupled to top wall  500  and arranged to lie in spaced-apart relation to one another. In the illustrated embodiment, lid anchors  51 ,  52  are positioned to lie radially inward of side walls  503 ,  504 , respectively. A plurality of optional stabilizer webs  505  extend between respective lid anchors  51 ,  52  and side walls  503 ,  504  as suggested in  FIGS. 3 and 4 . 
     Side walls  503 ,  504  define an outer diameter (OD) of closure  16  as measured from a lower perimeter edge of side walls  503 ,  504  spaced apart from top wall  500 . First and second lid anchors  51 ,  52  define an inner diameter (ID) of closure  16  corresponding in size with rim  42  of container  12  to allow engagement of first and second lid anchors  51 ,  52  with closure retainer  44 . 
     Table 1 shows several examples of dimensions for closures in accordance with the present disclosure. Closure size is measured in millimeters and measures an opening diameter (AD) of an opening formed in the container through which the filler neck passes as suggested in  FIG. 7 . The inner diameter (ID) is measured in inches and may also be called the “E” dimension when referring to container neck measurements as suggested in  FIG. 7 . The outer diameter (OD) is measured in inches and refers to a maximum diameter of the closure as suggested in  FIG. 7 . Closures in accordance with the present disclosure may use any value shown by the ranges below in Table 1, any point within the ranges, or any combination of ranges falling within the range shown below in Table 1. 
     
       
         
           
               
             
               
                 TABLE 1 
               
             
            
               
                   
               
               
                 Inner Diameter (ID) for Various Container Sizes 
               
            
           
           
               
               
               
               
               
            
               
                   
                 Neck Inner 
                 Neck Inner 
                 Neck Outer 
                 Neck Outer 
               
               
                   
                 Diameter 
                 Diameter 
                 Diameter 
                 Diameter 
               
               
                 Closure Size 
                 (ID) Max 
                 (ID) Min 
                 (OD) Max 
                 (OD) Min 
               
               
                 (AD) (mm) 
                 (inches) 
                 (inches) 
                 (inches) 
                 (inches) 
               
               
                   
               
            
           
           
               
               
               
               
               
            
               
                 18 
                 0.635 
                 0.621 
                 1.197 
                 1.183 
               
               
                 20 
                 0.714 
                 0.700 
                 1.276 
                 1.262 
               
               
                 22 
                 0.793 
                 0.779 
                 1.355 
                 1.341 
               
               
                 24 
                 0.871 
                 0.857 
                 1.433 
                 1.419 
               
               
                 28 
                 1.009 
                 0.995 
                 1.571 
                 1.557 
               
               
                 30 
                 1.048 
                 1.034 
                 1.610 
                 1.596 
               
               
                 33 
                 1.186 
                 1.172 
                 1.748 
                 1.734 
               
               
                 35 
                 1.285 
                 1.271 
                 1.847 
                 1.833 
               
               
                 38 
                 1.397 
                 1.383 
                 1.959 
                 1.945 
               
               
                 40 
                 1.501 
                 1.487 
                 2.063 
                 2.049 
               
               
                 43 
                 1.575 
                 1.561 
                 2.137 
                 2.123 
               
               
                 45 
                 1.691 
                 1.647 
                 2.253 
                 2.209 
               
               
                 48 
                 1.791 
                 1.777 
                 2.353 
                 2.339 
               
               
                 51 
                 1.889 
                 1.875 
                 2.451 
                 2.437 
               
               
                 53 
                 1.988 
                 1.974 
                 2.550 
                 2.536 
               
               
                 58 
                 2.145 
                 2.131 
                 2.707 
                 2.693 
               
               
                 60 
                 2.263 
                 2.249 
                 2.825 
                 2.811 
               
               
                 63 
                 2.382 
                 2.368 
                 2.944 
                 2.930 
               
               
                 66 
                 2.500 
                 2.486 
                 3.062 
                 3.048 
               
               
                 70 
                 2.657 
                 2.643 
                 3.219 
                 3.205 
               
               
                 75 
                 2.834 
                 2.820 
                 3.396 
                 3.382 
               
               
                 77 
                 2.956 
                 2.942 
                 3.518 
                 3.504 
               
               
                 83 
                 3.165 
                 3.149 
                 3.727 
                 3.711 
               
               
                 89 
                 3.408 
                 3.392 
                 3.970 
                 3.954 
               
               
                 100 
                 3.836 
                 3.818 
                 4.398 
                 4.380 
               
               
                 110 
                 4.230 
                 4.212 
                 4.792 
                 4.774 
               
               
                 120 
                 4.625 
                 4.605 
                 5.187 
                 5.167 
               
               
                   
               
            
           
         
       
     
     Table 2 shows calculations of a ratio (R) which is calculated by dividing the ID by the OD. Table 2 includes R minimum values and R maximum values for each container size. Closures in accordance with the present disclosure may use any value shown by the ranges below in Table 2, any point within the ranges, or any combination of ranges falling within the range shown below in Table 2. 
     
       
         
           
               
             
               
                 TABLE 2 
               
             
            
               
                   
               
               
                 Ratios of ID to OD 
               
            
           
           
               
               
               
            
               
                 Closure Size 
                 R Max 
                 R Min 
               
               
                 (AD) (mm) 
                 (ID/OD) 
                 (ID/OD) 
               
               
                   
               
            
           
           
               
               
               
            
               
                 18 
                 0.530 
                 0.525 
               
               
                 20 
                 0.560 
                 0.555 
               
               
                 22 
                 0.585 
                 0.581 
               
               
                 24 
                 0.608 
                 0.604 
               
               
                 28 
                 0.642 
                 0.639 
               
               
                 30 
                 0.651 
                 0.648 
               
               
                 33 
                 0.678 
                 0.676 
               
               
                 35 
                 0.696 
                 0.693 
               
               
                 38 
                 0.713 
                 0.711 
               
               
                 40 
                 0.728 
                 0.726 
               
               
                 43 
                 0.737 
                 0.735 
               
               
                 45 
                 0.751 
                 0.746 
               
               
                 48 
                 0.761 
                 0.760 
               
               
                 51 
                 0.771 
                 0.769 
               
               
                 53 
                 0.780 
                 0.778 
               
               
                 58 
                 0.792 
                 0.791 
               
               
                 60 
                 0.801 
                 0.800 
               
               
                 63 
                 0.809 
                 0.808 
               
               
                 66 
                 0.816 
                 0.816 
               
               
                 70 
                 0.825 
                 0.825 
               
               
                 75 
                 0.835 
                 0.834 
               
               
                 77 
                 0.840 
                 0.840 
               
               
                 83 
                 0.849 
                 0.849 
               
               
                 89 
                 0.858 
                 0.858 
               
               
                 100 
                 0.872 
                 0.872 
               
               
                 110 
                 0.883 
                 0.882 
               
               
                 120 
                 0.892 
                 0.891 
               
               
                   
               
            
           
         
       
     
     In one example, a closure in accordance with the present disclosure has a diameter (AD) of about 24 mm. In one example, the 24 mm closure has an inner diameter (ID) in a range of 0.8 in to about 0.9 in. In another example, the 24 mm closure has an inner diameter (ID) in a range of about 0.86 in to about 0.87 in. In another example, the 24 mm closure has an inner diameter (ID) in a range of about 0.857 in to about 0.871 in. In one example, the 24 mm closure has an outer diameter (OD) in a range of 1.4 in to about 1.5 in. In another example, the 24 mm closure has an outer diameter (OD) in a range of about 1.41 in to about 1.43 in. In another example, the 24 mm closure has an outer diameter (OD) in a range of about 1.419 in to about 1.433 in. In one example, the 24 mm closure has a ratio (R) of the ID to the OD of greater than 0.6. In another example, the 24 mm closure has a ratio (R) of the ID to the OD in a range of 0.60 to about 0.61. In another example, the 24 mm closure has a ratio (R) of the ID to the OD in a range of 0.604 to about 0.608. 
     In another example, a closure in accordance with the present disclosure has a diameter (AD) of about 28 mm. In one example, the 28 mm closure has an inner diameter (ID) in a range of 1.0 in to about 1.1 in. In another example, the 28 mm closure has an inner diameter (ID) in a range of about 1.00 in to about 1.01 in. In another example, the 28 mm closure has an inner diameter (ID) in a range of about 0.995 in to about 1.009 in. In one example, the 28 mm closure has an outer diameter (OD) in a range of 1.5 in to about 1.7 in. In another example, the 28 mm closure has an outer diameter (OD) in a range of about 1.56 in to about 1.57 in. In another example, the 28 mm closure has an outer diameter (OD) in a range of about 1.557 in to about 1.571 in. In one example, the 28 mm closure has a ratio (R) of the ID to the OD of greater than 0.6. In another example, the 28 mm closure has a ratio (R) of the ID to the OD in a range of 0.60 to about 0.65. In another example, the 28 mm closure has a ratio (R) of the ID to the OD in a range of 0.64 to about 0.65. In another example, the 28 mm closure has a ratio (R) of the ID to the OD in a range of 0.639 to about 0.642. 
     In another example, a closure in accordance with the present disclosure has a diameter (AD) of about 38 mm. In one example, the 38 mm closure has an inner diameter (ID) in a range of 1.3 in to about 1.4 in. In another example, the 38 mm closure has an inner diameter (ID) in a range of about 1.38 in to about 1.40 in. In another example, the 38 mm closure has an inner diameter (ID) in a range of about 1.383 in to about 1.397 in. In one example, the 38 mm closure has an outer diameter (OD) in a range of 1.9 in to about 2.0 in. In another example, the 38 mm closure has an outer diameter (OD) in a range of about 1.95 in to about 1.96 in. In another example, the 38 mm closure has an outer diameter (OD) in a range of about 1.945 in to about 1.959 in. In one example, the 38 mm closure has a ratio (R) of the ID to the OD of greater than 0.6. In another example, the 38 mm closure has a ratio (R) of the ID to the OD in a range of 0.69 to about 0.72. In another example, the 38 mm closure has a ratio (R) of the ID to the OD in a range of 0.71 to about 0.72. In another example, the 38 mm closure has a ratio (R) of the ID to the OD in a range of 0.711 to about 0.713. 
     In another example, a closure in accordance with the present disclosure has a diameter (AD) of about 45 mm. In one example, the 45 mm closure has an inner diameter (ID) in a range of 1.6 in to about 1.7 in. In another example, the 45 mm closure has an inner diameter (ID) in a range of about 1.65 in to about 1.69 in. In another example, the 45 mm closure has an inner diameter (ID) in a range of about 1.647 in to about 1.691 in. In one example, the 45 mm closure has an outer diameter (OD) in a range of 2.2 in to about 2.3 in. In another example, the 45 mm closure has an outer diameter (OD) in a range of about 2.21 in to about 2.25 in. In another example, the 45 mm closure has an outer diameter (OD) in a range of about 2.209 in to about 2.253 in. In one example, the 45 mm closure has a ratio (R) of the ID to the OD of greater than 0.6. In another example, the 45 mm closure has a ratio (R) of the ID to the OD in a range of 0.73 to about 0.76. In another example, the 45 mm closure has a ratio (R) of the ID to the OD in a range of 0.74 to about 0.76. In another example, the 45 mm closure has a ratio (R) of the ID to the OD in a range of 0.746 to about 0.751. 
     In another example, a closure in accordance with the present disclosure has a diameter (AD) of about 45 mm. In one example, the 45 mm closure has an inner diameter (ID) in a range of 1.6 in to about 1.7 in. In another example, the 45 mm closure has an inner diameter (ID) in a range of about 1.65 in to about 1.69 in. In another example, the 45 mm closure has an inner diameter (ID) in a range of about 1.647 in to about 1.691 in. In one example, the 45 mm closure has an outer diameter (OD) in a range of 2.2 in to about 2.3 in. In another example, the 45 mm closure has an outer diameter (OD) in a range of about 2.21 in to about 2.25 in. In another example, the 45 mm closure has an outer diameter (OD) in a range of about 2.209 in to about 2.253 in. In one example, the 45 mm closure has a ratio (R) of the ID to the OD of greater than 0.6. In another example, the 45 mm closure has a ratio (R) of the ID to the OD in a range of 0.73 to about 0.76. In another example, the 45 mm closure has a ratio (R) of the ID to the OD in a range of 0.74 to about 0.76. In another example, the 45 mm closure has a ratio (R) of the ID to the OD in a range of 0.746 to about 0.751. 
     In another example, a closure in accordance with the present disclosure has a diameter (AD) of about 53 mm. In one example, the 53 mm closure has an inner diameter (ID) in a range of 1.9 in to about 2.1 in. In another example, the 53 mm closure has an inner diameter (ID) in a range of about 1.97 in to about 1.99 in. In another example, the 53 mm closure has an inner diameter (ID) in a range of about 1.974 in to about 1.988 in. In one example, the 53 mm closure has an outer diameter (OD) in a range of 2.4 in to about 2.6 in. In another example, the 53 mm closure has an outer diameter (OD) in a range of about 2.54 in to about 2.55 in. In another example, the 53 mm closure has an outer diameter (OD) in a range of about 2.536 in to about 2.550 in. In one example, the 53 mm closure has a ratio (R) of the ID to the OD of greater than 0.6. In another example, the 53 mm closure has a ratio (R) of the ID to the OD in a range of 0.76 to about 0.79. In another example, the 53 mm closure has a ratio (R) of the ID to the OD in a range of 0.77 to about 0.78. In another example, the 53 mm closure has a ratio (R) of the ID to the OD in a range of 0.778 to about 0.780. 
     Lid  50  is formed to include first and second passageways  27 ,  29  through lid  50  and at least partially defined by lid anchors  51 ,  52  and side walls  503 ,  504  as suggested in  FIGS. 3 and 4 . Tab-mover wall  501  is positioned to lie in passageway  27  such that slots  271 ,  272  are formed between first tab-mover wall  501  and side walls  503 ,  504 . Tab-mover wall  502  is positioned to lie in passageway  29  such that slots  291 ,  292  are formed between second tab-mover wall  502  and side walls  503 ,  504 . Tab-mover walls  501 ,  502  are configured to flex relative to top wall  500  within passageways  27 ,  29 . 
     Removable closures in accordance with the present disclosure are configured to minimize a weight of the closure. In one example, weight is minimized as a result of forming the closure to include slots  271 ,  272 ,  291 ,  292 . Removable closures in accordance with the present disclosure are also configured to reduce the overall outer diameter (OD) of the closure while maintaining the same inner diameter (ID) associated with filler neck  40 . In one example, the outer diameter (OD) is reduced as a result of passageways  27 ,  29  allowing movement of tab-mover walls  501 ,  502  to the inner diameter (ID). 
     Another illustrative embodiment of a closure  1016  in accordance with the present disclosure for use with container  12  is illustrated in  FIG. 17 . Closure  1016  is substantially similar to closure  16  of  FIGS. 1-4  except that thin, deformable webs  1099  extend across slots  271 ,  272 ,  291 ,  292  to connect tab-mover walls  501 ,  502  with side walls  503 ,  504 , as illustratively shown by web  1099  extending across slot  271  between tab-mover wall  501  and side wall  503  in  FIG. 17 . Webs  1099  are configured to deform in a controlled manner to allow movement of tab-mover walls  501 ,  502  relative to side walls  503 ,  504 . In one example, webs  1099  have a constant thickness along a length of the web that extends from the top wall of the closure downwardly toward the container  12 . In another example, webs  1099  have a varying thickness along a length of the web that extends from the top wall of closure downwardly toward the container  12 . The thickness may vary from thicker toward the top wall to thinner toward the container. 
     First lock tab  21  is coupled to first tab-mover wall  501  to move with tab-mover wall  501  within interior region  54  of lid  50  and may not be visible to an observer when closure  16  is mounted on container  12 , if closure  16  or a portion thereof adjacent to first lock tab  21  is opaque, as suggested in  FIG. 1 . A second lock tab  22  is coupled to a second tab-mover wall  502  to move with second tab-mover wall  502  within interior region  54  of lid  50  as suggested in  FIG. 2 . In the illustrative embodiment, second lock tab  22  is substantially the same as first lock tab  21 , and thus, the description of first lock tab  21  may also apply to second lock tab  22 . Similarly, tab-mover wall  502  may be substantially the same as tab-mover wall  501 , and thus, the description of tab-mover wall  501  also applies to tab-mover wall  502 . 
     First tab blocker  28  is coupled to body  38  of container  12  in an illustrative embodiment of the present disclosure as suggested in  FIG. 2 . Tab blocker  28  is arranged to define an outer boundary of lock-tab pass-through channel  24 . Tab blocker  28  includes a cam ramp  281  and a stop face  282 . Tab blocker  28  is coupled to body  38  to lie in a stationary position to intercept and/or mate with first lock tab  21  as first lock tab  21  moves in or near lock-tab pass through channel  24  as suggested in  FIGS. 8-12 . In an illustrative embodiment, first tab blocker  28  and body  38  cooperate to form a monolithic, one piece, or unitary element as suggested in  FIGS. 5 and 6 . 
     In the illustrative embodiment, first lock tab  21  is formed to define an arcuate edge  211  and a mating edge  212  as suggested in  FIGS. 3 and 4 . In some embodiments, lock tab  21  is formed to define a beveled edge instead of arcuate edge  211  such that lock tab  21  assumes a wedge shape. Arcuate edge  211  of first lock tab  21  engages with cam ramp  281  to guide lock tab  21  into lock-tab pass through channel  24  during installation of closure  16  on container  12 . First lock tab  21  is integrally formed with tab-mover wall  501  and is arranged to lie in spaced-apart radial relation to the tab-mover wall  501 . First lock tab  21  is arranged to extend from an inner surface of tab-mover wall  501  in a direction along axis of rotation A, for example, generally parallel to tab-mover wall  501 . First lock tab  21  is spaced radially inward from a portion of tab-mover wall  501  to define a gap G. In one example, tab blocker  28  passes through gap G during installation of closure  16  on container  12  as suggested in  FIGS. 9-12 . 
     Cam ramp  281  is configured to provide means for contacting arcuate edge  211  of first lock tab  21  as first lock tab  21  moves through lock-tab pass through channel  24  during installation of closure  16  on container  12  and for yieldably biasing first lock tab  21  in a radially inward direction until first lock tab  21  clears tab blocker  28  as suggested in  FIGS. 9 and 10 . In some embodiments, only one of cam ramp  281  and arcuate edge  211  is used. Once cleared, the elastic tab-mover wall  501  snaps or moves first lock tab  21  in an opposite and/or radially outward direction to an un-deflected or equilibrium position to assume a locked position shown, for example, in  FIGS. 11 and 12  in which mating edge  212  of first lock tab  21  lies in closely confronting relation to stop face  282  of tab blocker  28 . In some embodiments, lock tab  21  is biased radially outward relative to tab blocker  28  during installation of closure  16  on container  12  and tab-mover wall  501  moves lock tab  21  radially inward after clearing tab blocker  28 . Stop face  282  is configured to provide means for mating with mating edge  212  of first lock tab  21  when closure  16  is mounted on container  12  to block movement of closure  16  about axis A relative to container  12  in the counterclockwise closure-removal direction as suggested in  FIG. 8 . In another example, the description of lock tab  21  may be applicable to second lock tab  22 . However, any suitable number of number lock tabs in accordance with the present disclosure may be used. 
     In the illustrative embodiment, first lock tab  21  extends from first tab-mover wall  501  as shown, for example, in  FIGS. 3 and 4 . Second lock tab  22  is integrally formed with tab-mover wall  502  and is arranged to lie in spaced-apart radial relation to the tab-mover wall  502 . Second lock tab  22  is arranged to extend from an inner surface of tab-mover wall  502  in a direction along axis of rotation A, for example, generally parallel to tab-mover wall  502 . Second lock tab  22  is configured to be the mirror image of first lock tab  21 . Second lock tab  22  mates and interacts with a second tab blocker  32  coupled to body  38  of container  12  as suggested in  FIGS. 2 and 8  in the same way that first lock tab  21  mates and interacts with first tab blocker  28 . In the illustrated embodiment, second lock tab  22  and second tab blocker  32  are included in child-resistant closure-release control mechanism  20  and function in a manner suggested in  FIGS. 7-14  to control release of closure  16  from companion container  12 . 
     A first lid anchor  51  is included in closure  16  and configured to provide means for mating with closure retainer  44  coupled to filler neck  40  as suggested in  FIG. 2  to retain closure  16  in an installed position on container  12  in a manner suggested in  FIGS. 5 and 6 . In an illustrative embodiment, a second lid anchor  52  is included in closure  16  and configured to mate with closure retainer  44  in a similar fashion. It is within the scope of the present disclosure to use any suitable lid anchor mechanism to retain closure  16  in an installed position on container  12 . In one illustrative embodiment, lid anchors  51 ,  52  are formed to include threads for mating with threads of closure retainer  44 . 
     Installation of closure  16  on container  12  is shown, for example, in  FIGS. 9-12 . In operation, as closure  16  is rotated about axis A in the direction of arrow  99 , arcuate edge  211  of first lock tab  21  contacts cam ramp  281  of tab blocker  28  as suggested in  FIG. 9 . Further rotation of closure  16  in the tightening direction, as suggested by arrow  99 , causes arcuate edge of first lock tab  21  to slide along cam ramp  281  such that tab-mover wall  501  flexes or deflects toward axis A to move first lock tab  21  radially inward as suggested in  FIGS. 10 and 11 . As first lock tab  21  slides along cam ramp  281 , tab blocker  28  passes into gap G of tab-mover wall  501 . After first lock tab  21  has slid over cam ramp  281 , tab-mover wall  501  snaps outward toward an un-deflected or equilibrium position, to which the tabs are normally biased as a result of inward deflection caused by the cam ramps creating an outward spring action in the inwardly deflected tabs. When in the un-deflected or equilibrium position, first lock tab  21  has moved radially outward to align mating edge  212  of lock tab  21  with stop face  282  of tab blocker  28  as suggested in  FIG. 12 . Engagement between mating edge  212  of lock tab  21  and stop face  282  of tab blocker  28 , both of which are located along a similar radius from axis A, blocks reverse rotation of closure  16  relative to the container without manipulation of closure-release control mechanism  20 . 
     First lock tab  21  is shown in a first radial position (also called a closure-retaining position) when closure  16  is fully mounted onto container  12 , in  FIGS. 7 and 8 . The squeezing force applied by an adult to tab-mover wall  501 , as suggested by the phantom double arrow in  FIG. 7 , flexes tab-mover wall  501  radially inward to move first lock tab  21  toward axis of rotation A into passageway  27  to a second radial position, shown in phantom, at a similar radial distance from axis A as lid anchors  51 ,  52  to remove first lock tab  21  from engagement with tab blocker  28  as suggested in  FIG. 8 . In the second radial position, or closure-releasing position when an adult seeks to remove closure  16  from container  12 , first lock tab  21  is able to travel back through lock-tab pass through channel  24  to allow removal of closure  16  from container  12 . 
     Removal of closure  16  from container  12  is shown, for example, in  FIGS. 13 and 14 . A user applying squeezing forces (represented by opposing arrows) to tab-mover walls  501 ,  502  moves each of first and second lock tabs  21 ,  22  radially inwardly to cause each of those lock tabs  21 ,  22  to separate from their companion tab blockers  28 ,  32  to free closure  16  so it can be rotated in a counterclockwise closure-removal direction relative to container  12 . Counterclockwise rotation of closure  16  relative to container  12  in the closure-removal direction removes closure  16  from container  12  to allow access through open mouth  18  to product-receiving chamber  14 . 
     Separation of tab-mover walls  501 ,  502  from side walls  503 ,  504  by slots  271 ,  272 ,  291 ,  292  blocks first lock tab  21  from moving in a radially outward direction away from axis of rotation A to separate from tab blocker  28  during an unauthorized attempt to remove closure  16  from container  12  by application of a squeezing force to side walls  503 ,  504 . Squeezing side walls  503 ,  504  does not move first lock tab  21  from the closure-retaining position shown in  FIG. 13  in the radially outward direction to assume a radially outwardly displaced position unmated from tab blocker  28  (and located outside of lock-tab pass through channel  24  and inside interior region  54  of lid  50 ). As such, closure  16  is still blocked from rotation relative to container  12  about axis of rotation A in the closure-removal direction even when a squeezing force is applied to side walls  504 ,  504  because first lock tab  21  remains mated with tab blocker  28 . The slots  271 ,  272 ,  291 ,  292  also minimize deformation of closure  16 . Minimizing deformation allows closure  16  to be formed in a round shape instead of an oval-like shape where deformation of the closure is used to move the lock tabs. In some embodiments, lock tabs  21 ,  22  are of different construction. In some embodiments, lock tab-mover walls  501 ,  502  are of different construction. 
     The canister of the present disclosure provides for a child-resistant canister that maximizes filling speed. Filling speed may be influenced, in part, by an Inner Diameter (ID) of a filler neck included in a container of the canister. Filling speed may be improved when the ID of the filler neck is maximized. One example of a suitable ID is about 0.728 inches. However, other suitable ID&#39;s may be used where filling speed is not adversely impacted, such as from about 0.6 inches or greater, or as otherwise desired. The ID of the filler neck may also be defined by first and second lid anchors  51 ,  52  of closure  16  as they may correspond in size with rim  42  of container  12  to allow engagement of first and second lid anchors  51 ,  52  with closure retainer  44 . 
     The canister of the present disclosure also provides for a child-resistant canister that maximizes container height as the width or diameter can be minimized while defining a similar internal volume for product. Maximizing container height also maximizes height of an area suitable for a label, graphic, indicia, etc. to be applied to the container, if desired, without providing for a short and squatty appearance of the canister, which may be considered undesirable in some cases, for example, when smaller capacity canisters are used. Smaller capacity canisters may include, for example, 30 ml packages and other like-sized packages. 
     Short and squatty appearance of the canister may be minimized as a result of minimizing an Outside Diameter (OD 1 ) of the closure in relation to an Outside Diameter of the Container (OD 2 ) and maximizing label height. Side walls  503 ,  504  define Outside Diameter (OD 1 ) of closure  16  as measured from a lower perimeter edge of side walls  503 ,  504  spaced apart from top wall  500 . Outside Diameter (OD 1 ) of the closure is minimized in part by first and second lid anchors  51 ,  52  being spaced apart circumferentially from one another to locate first and second lock tabs  21 ,  22  circumferentially therebetween eliminating a need for a radial clearance between lock tabs  21 ,  22  and an internal threaded wall used to mount closure  16  on container  12 . Lock tabs  21 ,  22  are spaced-apart axially from axis of rotation A a distance sufficient to minimize OD 1  without interfering with engagement of lid anchors  51 ,  52  with closure retainer  44 . 
     The canister of the present disclosure provides for maximized filling speed while minimizing a short and squatty appearance of the canister. The canister of the present disclosure accomplishes this by maximizing the ID of the container while minimizing the OD 1  of the closure. Thus, the competing interests of filling speed and appearance of the container are satisfied by the canister of the present disclosure. Passageways  27 ,  29  minimize a weight of closure  16  while allowing the OD 1  of closure  16  to be minimized such that smaller bottle footprints can be used without overhang of closure  16 . The minimized OD 1  of closure  16  allows a radial distance of tab blockers  28 ,  32  to be minimized to maximize dimensional control of canister  10 . 
     Minimizing OD 1  of the closure also for maximized dimensional control during manufacturing as a result of lock tabs  21 ,  22  being moved closer to rotation axis A. Furthermore, minimizing OD 1  provides for a smaller footprint of the canister and for a closure that does not extend beyond a perimeter of the container (e.g., no closure overhang).