Supply chain systems and methods are disclosed for monitoring fluid levels in liquid containers, such as kegs. Embodiments include sensors that fit within a keg's false bottom, measure the weight of the keg, and transmit the weight information to a computer database via a wireless network. Other embodiments include an RFID device with information about a characteristic of the liquid within a keg (such as brand and/or type of beer) that may be attached to the keg and paired with the sensor so the sensor can transmit information about the characteristic of the liquid in the keg. In alternate embodiments, the sensor's transmitter is short range and an uplink/gateway is used to receive information from the sensor and relay that sensor's information to a broader wireless network. Multiple containers in close proximity may each be fitted with an RFID device and sensor and communicate their individual information to the database.

In a fuel supply device including a regulator and float-type level sensor, a fitting tube is formed integrally with an upper housing, a fuel pump being retained between the upper and lower housings. An outer periphery of a base part of the regulator is fitted into the tube. A regulator retaining member is formed as a separate member from the upper housing and retains the regulator in cooperation with the tube. The tube and the retaining member are joined via a snap-fit join part provided on fitting parts therebetween. The snap-fit join part is formed by engaging a projecting portion or a recess part, formed on an elastic piece provided on one of the fitting parts between the retaining member and the tube, with the recess part or the projecting portion formed on the other fitting part. A sensor support arm is molded as a unit with the retaining member.

A top fill water reservoir system that allows the reservoirs to be filled without waiting for a reverse osmosis (RO) filter to produce enough water to fill the system and avoids the need for a service worker to remove the system from the cabinet, or wait for RO filtration, to fill the reservoirs. The top fill water reservoir system comprises a drinking reservoir adapted to store and dispense drinking water. A supply reservoir in fluid communication with the drinking reservoir and adapted to feed water into the drinking reservoir and receive water from a reverse osmosis (RO) filter. An overflow tube adapted to connect an upper portion of the drinking reservoir to the supply reservoir and feed overflow water from the drinking reservoir to the supply reservoir.

In one general aspect, the present application relates to a leak detection device that includes a body, a liquid separator, and a liquid level detector. The body includes an airflow inlet, an airflow outlet, and a liquid reservoir. The airflow outlet is arranged to substantially align with the airflow inlet. The liquid reservoir is formed in a bottom portion of the body. The liquid separator is positioned directly between the airflow inlet and the airflow outlet. The liquid separator divides an airflow path from the airflow inlet to the airflow outlet into at least two separate flow paths around the liquid separator. The liquid level detector is at least partially contained within a channel defined within a lower portion of the liquid separator, where the channel is in liquid communication with the liquid reservoir.

A device for collecting air into an air collecting pipe through a hole having a certain size includes a diaphragm check valve having elasticity. The diaphragm check valve is opened due to a change in the pressure in the vicinity of an air layer during generation of air when gas accumulation occurs in a safety related system pipe of a power plant or in a general pipe.

The present invention relates to a connector (100) for a water system. The connector comprises an inlet connector (105), a connector body and an outlet connector (120) arranged in sequence. The connector body is open-sided so as to form a tundish having an open air gap between the inlet and outlet connectors (105, 120), through which water can fall in use. The connector (100) further comprises a sensor for detecting the presence of water within the connector body.

A valve of a first container is opened to remove fluid into a second container, where the output of the first container is above a maximum fluid level of the second container. The valve of the first container is closed based on a sensor indicating that a fluid level in the first container is at a first fluid level. A pump pumps the fluid from the second container to the first container via a flow meter. An indication is received that causes the pump to stop pumping based on the indication. An amount of fluid pumped into the first container is determined based on the first fluid level and a second fluid level indicated by the sensor. An indication of total fluid volume measured by the flow meter is compared to the amount of fluid pumped. An indication of accuracy of the flow meter is output based on the comparison.

A system and method of operating a water supply system with one or more water consuming appliances is provided. The water supply system includes a hot water heater for supplying a flow of heated water through a supply conduit to at least one water consuming appliance. The water consuming appliance receives the flow of heated water and provides an indication of a fault condition if excessive water accumulates in the appliance, which might indicate a malfunction with a drain pump or a water supply valve. A safety shutoff valve is positioned on the supply conduit and is in operative communication with the water consuming appliance. The safety shutoff valve is configured for stopping the flow of heated water when it receives the indication of the fault condition.

Supply chain systems and methods are disclosed for monitoring fluid levels in liquid containers, such as kegs. Embodiments include sensors that fit within a keg's false bottom, measure the weight of the keg, and transmit the weight information to a computer database via a wireless network. Other embodiments include an RFID device with information about a characteristic of the liquid within a keg (such as brand and/or type of beer) that may be attached to the keg and paired with the sensor so the sensor can transmit information about the characteristic of the liquid in the keg. In alternate embodiments, the sensor's transmitter is short range and an uplink/gateway is used to receive information from the sensor and relay that sensor's information to a broader wireless network. Multiple containers in close proximity may each be fitted with an RFID device and sensor and communicate their individual information to the database.

A reservoir tank includes a reservoir body defining a storage chamber for an operating fluid; and a float guide in the storage chamber. The float guide forms a float chamber on the inner side. The reservoir tank further includes a fluid level detection device that has a float moving up and down in the float chamber in accordance with fluctuations of a fluid level, and has a detector detecting when the float is below predetermined position. The reservoir tank is provided with a slit in the float guide. The slit is in communication with the storage chamber and the float chamber. An operating fluid passage is provided on an inner face of the float guide which is continuous with the slit, which is in communication with the slit and the float chamber.