A preform can be made from two different materials that do not bond together by a bi-injection process, using the same mold. First an outer preform can be fashioned first, then an inner preform molded through a center hole in the outer preform, and the preforms connected. Inner/outer preform materials can be different, e.g., PET/polyolefin or polyamide, or the same, e.g., PET/PET. To prevent mutual bonding during molding of the second, a non-stick coating can be sprayed on a surface portion of the first preform prior to molding, the second. Manufacturing order can be either outer/inner, or inner/outer, and the non-stick coating sprayed on the inside/outside of the perform first molded.

A container and a container engaging member. The container engaging member may include a sample holder or reservoir, a filtration element and collar. In the assembled condition, the sample holder or reservoir is upstream of the filtration element, the container is downstream of the filtration element, and the sample holder or reservoir is attached to the container. The container engagement member is engageable and disengageable from the bottle or container in a quick attach, quick release manner, such as with only a 90 degree, ¼ turn. A tactile and/or audible indication that the engagement is complete is provided.

Disclosed is a test barrel, to prevent a test liquid in the barrel from sputtering into a connection gap due to shaking of the barrel to hence cause contamination, improve the measurement accuracy in case of multiple tests, and meanwhile improve the operability of screwing on and screwing off the entire device during use of the device. The above technical objective of this utility model is implemented by employing the following technical solution: a test barrel, comprising barrel lid and a barrel body; wherein the threaded rings are arranged on an inner wall of a side face of the barrel lid and an outer wall of an opening of the barrel body, a rotary force applying portion is arranged on an outer wall of the side face of the barrel lid, and during engagement, a liquid blocking washer is arranged between the barrel lid and the barrel body, wherein a radial width of the liquid blocking washer is greater than a thickness of the opening of the barrel body.

A one-piece closure includes first and second closure portions. The first closure portion includes a top wall portion and an annular skirt portion depending from the top wall portion. The annular skirt portion includes an internal thread formation for mating engagement with an external thread formation of a container. The second closure portion includes a tamper-evident band. The tamper-evident band depends from and is partially detachably connected to the annular skirt portion by a first frangible connection. The closure includes polymeric material and wood filler.

A screw cap (14, 502) configured to be removably attachable to a bottle (12) includes a base (40) and an annular skirt (42, 508) extending downwardly therefrom. One or more threads (32) extend radially inwardly from an interior surface of the skirt (42, 508). A retention feature (509) extends radially inwardly from the interior surface of the skirt (42, 508). The retention feature (509) is configured to produce at least one of an audible response or a tactile response when the cap (14, 502) is rotated with respect to a bottle (12).

A preform can be made from two different materials that do not bond together by a bi-injection process, using the same mold. First an outer preform can be fashioned first, then an inner preform molded through a center hole in the outer preform, and the preforms connected. Inner/outer preform materials can be different, e.g., PET/polyolefin or polyamide, or the same, e.g., PET/PET. To prevent mutual bonding during molding of the second, a non-stick coating can be sprayed on a surface portion of the first preform prior to molding, the second. Manufacturing order can be either outer/inner, or inner/outer, and the non-stick coating sprayed on the inside/outside of the perform first molded.

A closure includes first and second closure portions. The first closure portion includes a polymeric top wall portion and an annular skirt portion. The skirt portion includes exterior and interior surfaces. The interior surface includes an internal thread formation for mating engagement with an external thread formation of a container and at least one rotation-inhibiting projection. The rotation-inhibiting projection is located to contact the external thread formation. The rotation-inhibiting projection is in the general shape of the letter “C” prior to engagement with the external thread formation of the container. The second closure portion includes a polymeric tamper-evident band.

The system and method for a press and turn fastener having a plurality of mated thread sets where their symmetrical configuration is used in a fastening application to attach a male and female component. It is understood that this press and turn fastening system is useful for several applications including, but not limited to, pressurized and non-pressurized containers; mechanical, and electrical connections (e.g., light bulbs). The press and turn fastener requires only a fraction of a turn to be secured. In some cases, the press and turn faster also includes at least one locking feature, at least one stop, or both.

A method of applying a lid (1) onto a neck (9) of a container (10), the lid (1) having a side wall (3) extending around an axis and an end wall (2) extending transversely to said axis, comprises the following steps: —positioning the lid (1) onto the neck (9); —exerting on the end wall (2) a force directed towards the container (10), so as to level the lid (1) on the neck (9); —screwing the lid (1) onto the neck (9) by rotating the lid (1) in a screwing direction.

An assembly consisting of a container (1) having a nozzle (17) for dispensing a substance contained in the container (1), and a cap (19) for covering the nozzle (17), the container having a first connection region (14) which can be connected to a corresponding second connection region (25) of the cap (19), the connection regions (14, 25) being selected such that the container (1) and the cap (19) are connected at least partially by a rotational movement of the container (1) and the cap (19) relative to one another, the cap (19) having an inner chamber (20) surrounded by a casing (22), which chamber is open at one end so as to receive the nozzle (17), the casing (22) having an end face (21) at its open end, and the container (1) having a cover face (12) which points toward the cap and has a cover edge (11), the connection regions (14, 25) being selected and the end face (21) being adapted to the cover face (12) and the cover edge (11) thereof such that, when the container (1) and the cap (19) are connected, the end face (21) comes into contact with the cover face (12) when the cap (19) is in a first intermediate position and, when the container (1) and the cap (19) are rotated further relative to one another, the end face (21) is pressed against the cover face (12) and the cap (19) ultimately reaches a second end position, the end face (21) passing over the cover edge (11).