A fuel cap assembly according to an example of the present disclosure includes a fuel cap and a pipe stub that extends from the fuel cap and defines a first internal passage. A sensor element and a fuel tube are adjacent to each other and both extend from the fuel cap through the first internal passage. A cylindrical coupler is composed of an elastomer and defines a second internal passage that extends between an inlet port and an outlet port. The inlet port has a first inner diameter and the pipe stub is receivable into the inlet port. The outlet port has a second inner diameter that differs from the first inner diameter.

A fuel cap assembly according to an example of the present disclosure includes a fuel cap and a pipe stub that extends from the fuel cap and defines a first internal passage. A sensor element and a fuel tube are adjacent to each other and both extend from the fuel cap through the first internal passage. A cylindrical coupler is composed of an elastomer and defines a second internal passage that extends between an inlet port and an outlet port. The inlet port has a first inner diameter and the pipe stub is receivable into the inlet port. The outlet port has a second inner diameter that differs from the first inner diameter.

A container closure node system includes a closure chassis coupling device that couples to a container closure for a container aperture. The closure chassis coupling device includes a first plate member that includes a first securing element and a second securing element. The closure chassis coupling device also includes a second plate member that includes a third securing element that is configured to couple to the first securing element and a fourth securing element that is configured to couple to the second securing element. At least one of the first plate member and the second plate member includes a container closure engagement member that is configured to engage the container closure to prevent rotational movement of the closure chassis coupling device relative to the container closure when the third securing element is coupled with the first securing element and the fourth securing element is coupled with the second securing element.

A container closure node system includes a closure chassis coupling device that couples to a container closure for a container aperture. The closure chassis coupling device includes a first plate member that includes a first securing element and a second securing element. The closure chassis coupling device also includes a second plate member that includes a third securing element that is configured to couple to the first securing element and a fourth securing element that is configured to couple to the second securing element. At least one of the first plate member and the second plate member includes a container closure engagement member that is configured to engage the container closure to prevent rotational movement of the closure chassis coupling device relative to the container closure when the third securing element is coupled with the first securing element and the fourth securing element is coupled with the second securing element.

Floating roof storage tank systems and related methods are disclosed. The disclosed systems include a storage tank, a floating roof, and a plurality of acoustic sensors. The storage tank has one or more walls defining an interior space and the floating roof is configured to move vertically within the interior space. The acoustic sensors are levelly mounted along a horizontal plane on the one or more walls of the storage tank. One or more signals received by at least a portion of the plurality of acoustic sensors are used to determine a tilt angle of the floating roof.

An improved shelving unit for a shipping container is disclosed herein. The improved shelving unit can comprise one or more shelf assemblies and an RFID reader. Each of the one or more shelf assemblies can comprise a bottom platform and a top platform. The RFID reader can be mounted between the bottom platform and the top platform. The top platform can be capable of supporting items.

An improved shelving unit for a shipping container is disclosed herein. The improved shelving unit can comprise one or more shelf assemblies and an RFID reader. Each of the one or more shelf assemblies can comprise a bottom platform and a top platform. The RFID reader can be mounted between the bottom platform and the top platform. The top platform can be capable of supporting items.

An improved wall panel for an automated inventory module is disclosed herein. The improved wall panel can comprise a wall panel. The wall panel can be capable of being mounted at a corrugated interior surface of an automated inventory module (AIM). The wall panel can comprise a substantially flat first exterior layer comprising a first side and a second side. The first exterior layer first side can face the interior of the AIM when the wall panel is mounted at the interior surface, and the first exterior layer second side can face the interior surface when the wall panel is mounted at the interior surface. The first exterior layer can comprise a ferromagnetic material.

An improved wall panel for an automated inventory module is disclosed herein. The improved wall panel can comprise a wall panel. The wall panel can be capable of being mounted at a corrugated interior surface of an automated inventory module (AIM). The wall panel can comprise a substantially flat first exterior layer comprising a first side and a second side. The first exterior layer first side can face the interior of the AIM when the wall panel is mounted at the interior surface, and the first exterior layer second side can face the interior surface when the wall panel is mounted at the interior surface. The first exterior layer can comprise a ferromagnetic material.

A self-weighing container for transporting delivery items includes a weight-sensing device that is configured to sense a weight of a delivery item that is placed inside the container; a microcontroller that is connected to the weight-sensing device; and a display that is connected to the microcontroller. When a delivery item is placed in the container, the weight-sensing device produces a signal that corresponds to the weight of the delivery item and the microcontroller receives the signal and determines the weight of the delivery item based on the signal. The microcontroller may transmit an indication of the weight to the display, which displays the weight based on the indication of the weight, or the microcontroller may transmit the weight to a smart phone for display.