The present disclosure is generally directed to storage container lids and lock rings, and more particularly to a lock ring and lid combination for storage containers.
Cylindrical containers of different sizes are known in the art for holding and storing many different types of materials. Such materials include solids, which may be pellets, granules, grains, particles, and the like. Such materials also include liquids, which may be chemicals, oils, paints, industrial materials, and the like. These types of containers come in a range of different shapes and sizes, including large fifty-five-gallon drums and small five-gallon buckets. These types of containers are sometimes constructed of a metal material such as steel. These types of containers are sometimes constructed of a fiber material and have a metal chime around the top and a steel closure at the bottom. These types of containers are also sometimes constructed of a molded plastic material.
Material storage containers of this type include a removable lid, which is used to close off the open top of the container. The lids are typically formed from stamped metal or molded plastic. The lids are then secured onto the drums by a ring clamp or lock ring. Such clamps or lock rings have a channel to capture a rim of the lid-to-container interface. An over-center lever is generally used to draw the ends of the ring clamp or lock ring structure together. The lock ring thus secures the lid in place on the container.
The lids and lock rings are typically manufactured, transported, stored, and installed as separate items to be installed on the containers. Thus, the lids and lock rings require two skews for transport, distribution, and tracking purposes. The lids and lock rings also require two separate storage areas in a facility where the containers are filled and where the lids and lock rings are installed to seal the containers. The lids and lock rings also require separate handling by personnel within these facilities, such as the personnel installing the lids and the personnel installing and securing the lock rings in place.
The number of different parts can add complexity and increase the cost of the manufacturing and filling processes. These issues can also result in either the lids or the lock rings being incorrectly selected and mated for a given container, if more than one size or type of container, lid, and/or lock ring is being handled within the same facility. Such errors can create downstream problems with leakage or unintentional lock ring or lid removal or detachment during shipping or handling.
In one example according to the teachings of the present disclosure, a container lid and lock ring combination has a lid for a container and a lock ring configured to extend loosely around the lid. The lock ring is configured to be tightened for securing the lid to a container. A joint connects the lid and the lock ring to one another.
In one example, the lid can be formed of a plastic material.
In one example, a body of the lock ring can be formed of a plastic material.
In one example, the joint can include a strap on one of the lid and the lock ring and can include a stand-off on the other of the lid and the lock ring. A free end of the strap can be configured to be received through an aperture of the stand-off.
In one example, a prong can be provided on a free end of a strap of the joint. The prong can be configured to be forcibly received one way through an aperture but to prevent or inhibit being reversed the other way through the aperture.
In one example, a strap of the joint can be on one end of the lock ring body and a stand-off of the joint can be on a rim of the lid.
In one example, a strap of the joint can be formed integrally as a part of the lock ring body.
In one example, a stand-off of the joint can be formed integrally as a part of the lid rim.
In one example, a strap of the joint can be on one end of a lever coupled to one end of the lock ring body.
In one example, a strap of the joint can be received through a slot in one end of the lock ring body and then through an aperture of a stand-off of the joint.
In one example according to the teachings of the present disclosure, a container assembly has a container with a top opening, a lid for closing off the top opening of the container, a lock ring configured to extend loosely around the lid in an open or unlocked condition and to be tightened for securing the lid to a container, and a joint connecting the lid and the lock ring to one another to form a lid and lock ring combination.
Objects, features, and advantages of the present disclosure will become apparent to these having ordinary skill in the art upon reading the following description in conjunction with the drawing figures.
The disclosed lid and lock ring combination solves or improves upon one or more of the above-noted and/or other problems and disadvantages with prior known container assemblies, lids, and lock rings. The disclosed lid and lock ring combination can be used for various container sizes and lid and lock ring styles. The combination is not limited to a particular lock ring or lid configuration. The disclosed lid and lock ring combination joins a lock ring to a lid for which it is intended to be used. The joined lid and lock ring parts together form the disclosed combination. In the combined or joined arrangement, the lid and lock ring can be transported, distributed, stored, and installed as one part. The disclosed lid and lock ring combination can also be identified as a single skew number for tracking purposes during shipping, storage, and installation at a facility. These and other objects, features, and advantages of the disclosed lid and lock ring combination may become apparent upon reading this disclosure.
Turning now to the drawings,
Referring to
The container 12 and lid 14 may each be constructed in many different shapes, sizes, and forms without departing from the scope of the present disclosure. As noted above, the material from which the container is made can also vary. The container may be molded as a one-piece plastic structure, as in the present example. Instead, the container can be formed of multiple steel components that are welded together or otherwise suitably assembled. The container can instead be made having a fiber material side wall with an attached steel bottom, a steel chime around the top opening (see the chine C in
Referring to
In one example, the channel section 34 is contoured in cross-section. The wall of the channel section 34 is a continuously curved U shape, which is concave in the direction of the underside 30 of the top panel 26 and convex in the direction of the top side 28. A channel 38 is defined on the concave underside of the wall. The upper rim, i.e., the top edge 24 and lip 20 of the container 12, can be configured having a shape that corresponds with and fits within the shape of the channel 38. Thus, the upper rim of the container can seat within the channel of the lid rim.
The wall W of the channel section 34 on the lid rim has an inverted U shape in cross-section. The lid rim has an annular inner wall portion 40 that extends around the top panel 26 and protrudes upward from the perimeter of the top panel. The annular flange section 36 is a continuation of the inner wall portion 40 below the top panel. The lid rim also has an annular outer wall portion 42 that extends around the lid rim and that is spaced radially outward relative to the inner wall portion 40. In this example, the inner and outer wall portions 40, 42 are connected to one another at their respective upper ends by a shoulder portion 44 of the wall that bridges the space between the wall portions. The wall is elevated relative to the adjacent portion of the top panel in one example. The channel section 34 of the lid rim, i.e., the wall, inclusive of the inner and outer wall portions 40 and 42 and the shoulder portion 44, combine to define the upwardly closed channel 38 under the lid rim between the inner and outer wall portions. When the lid 14 is attached to the container, as shown in
The lock ring 16 is used to secure the lid 14 onto the container 12. The configuration and construction of the lock ring 16 can also vary considerably and yet function as intended. Thus, the lock ring 16 is only described generically herein. In this example, with reference to
In the disclosed example, the body 50 of the lock ring 16 has a somewhat C-like shape when viewed in cross-section, as in
As will be evident to those having ordinary skill in the art, the wall of the body 50 can be formed with a rounded cross-section having no readily discernable horizontal or vertical legs, corners, or the like. Alternatively, the legs 58, 60, and 62 can be formed so as not to be specifically or precisely straight or linear and/or so as not to be precisely or specifically vertical or horizontal, depending on the construction of a given container and lid structure. The shape in cross-section of the body 50 is configured to clamp the lid 14 onto the container 12, as discussed further below and as shown in
The C-shape of the body 50 of the lock ring 16 creates a ring channel 66 that is formed by a combination of the top leg 58, the vertical leg 62, and the bottom leg 60. The ring channel 66 is concave in a radially inward facing direction. The ring channel 66 can be sized to forcibly or interferingly receive therein and snap onto the assembled combination of the lid rim and container rim including the top edge 24 and the lip 20. In one example, the top leg 58 may be slightly downturned at an inner edge. The inner edge can be angled slightly downward relative to horizontal or relative to a plane of a majority of the top leg 58. The bottom leg 60 can be slightly angled downward in a direction toward the contact flange 64 to aid in attaching the lock ring to the container 12 and lid 14, when assembled. The contact flange 64 can also be oriented at a desired angle relative to the bottom leg 60 so that the flange lies flat or flush against the side wall 22 of the container when installed.
When the lid 14 is placed over the top opening of the container 12, the container rim, including the top edge 24 and the lip 20, are positioned under and align with the channel 38 of the lid rim 32. In one example, the top edge 24 of the container rim can be formed having a curved or rounded surface, which can be similar to or mirror the shape of the channel 38. The seal 18 can be provided within the channel 38, if desired. Alternatively, the seal could be provided on the container top edge, if desired, although such a seal might hinder filling or dispensing contents from the container. As the lid 14 is lowered on the container 12, the seal 18, if any, engages the surface of the top edge 24 of the container. In one example, the seal 18 can be centered within the channel 38. When the lid 14 is pushed further onto the container 12, the seal 18 can be deformed to create a liquid tight seal between the lid and container within the channel 38.
When the lock ring 16 is not secured around the assembled lid 14 and container 12, a vertical gap may be defined between the free edge of the top leg 58 and the inner edge of the bottom leg 60. The gap can be sized to permit forced attachment to the container 12 and lid 14. When under no tension, the gap can be less than the distance between the assembled or installed combination of a lowermost free edge of the lip 20 on the container and the upper most point on the surface of the lid rim 32. To install the opened lock ring 16, the body 50 can be forced circumferentially onto the assembled lid and container rims. The gap into the ring channel 66 may be forcibly expanded, forcing the top leg 58 and bottom leg 60 further apart. The body 50 can be zipped around and/or snapped onto the assembled lid 14 and container 12 from one end to the other. This can be done until the top leg 58 of the body 50 snaps completely over the surface on the channel section 34 around the lid rim 32, the bottom leg 60 of the body seats completely under the lip 20 around the container rim, or both. The lever 56 can then be utilized to close the lock ring 16 and secure the lock ring in place, as depicted in
The lever 56 and its attachment to the ring body 50 can also vary in configuration, construction, and function within the scope of the present disclosure. With reference to
The pivot section 72 of the lever 56 can vary widely in configuration and construction. A pivot pin (not shown) can be integrally formed as a part of the lever 56 or as a part of the one end of the body 50 of the lock ring 16. A hook 80 can be configured on the other of the pivot section or the lever 56 or the one end 52 of the lock ring body 50. The hook 80 can engage and pivot about the pin, such as by being snapped onto the pin. As shown in
A lock tab 88 can protrude from a surface of the lock ring body 50 and protrude through a hole 90 in the lever 56, when clamped or in the closed or locked condition of
As shown in
According to the teachings of the present disclosure, the lid 14 and lock ring 16 are configured to form a combination by being joined to one another. In one example as shown in
Thus, whether the lock ring 16 is clamped or closed or whether it is unclamped or open, the lock ring will remain connected to the lid 14. In the open or unlocked condition, the lock ring diameter is larger than that of the lid diameter. This can allow for the lock ring 16 to be fit around and then clamped onto a lid 14 and container 12, once the lid is placed over the top opening of the container.
The strap 100 can be an integral part of the lock ring body 50 or can be a separate part attached to the body. Likewise, the one or more stand-offs 104 can be separate parts attached to the lid 14 or integrally formed as a part of the lid. In other examples, different types of complementary connectors may be employed on the lock ring 16 and the lid 14 to join the two parts. Also, the connectors or connector types can be reversed on the two parts, if desired. In other words, one or more of the stand-offs may be provided on the lock ring and the strap or other such extension may be provided on the lid.
In another example as shown in
Alternatively, it is possible that the other end, i.e., the stepped-up segment in the first example, can be configured to be attached to the rim of the lid to create the combination. Other examples are also possible, as long as the lid and lock ring can be joined to one another to form a combination of the two parts.
Although certain lid and lock ring combinations for containers have been described herein in accordance with the teachings of the present disclosure, the scope of coverage of this patent is not limited thereto. On the contrary, this patent covers all embodiments of the teachings of the disclosure that fairly fall within the scope of permissible equivalents.
This patent is entitled to the benefit of and claims priority to U.S. Provisional Application Ser. No. 62/726,362 filed Sep. 3, 2018 and entitled “Container Lid and Lock Ring Combination.” The entire contents of this prior filed application are hereby incorporated herein by reference.
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