Abstract: A rotational valve is provided for a hot water system. The hot water system has a cold inlet and a hot outlet. The rotational valve includes a housing and a flow director. The housing includes a body, a first conduit provided with the body and being structured to be coupled to the cold inlet, a second conduit provided with the body and being structured to be coupled to the hot outlet, and a bypass chamber provided with the body. The flow director is located within the body and is structured to direct water from the cold inlet and water from the hot outlet into the bypass chamber.

Abstract: A water heating system is disclosed. The water heating system may include a sensor configured to detect an anomaly in the water heating system, and a timer configured to detect hot water usage time duration. The water heating system may further include a controller configured to obtain inputs from the sensor and the hot water usage time duration from the timer. The controller may be further configured to determine that a predetermined condition is met based on the inputs or the hot water usage time duration. Responsive to a determination that the predetermined condition is met, the controller may be configured to modify a water flow or an output water temperature for a predefined time duration to provide an alert signal to a user.

Abstract: The disclosed technology includes an on-demand water heater which uses an electric heat source to heat the water. The on-demand water heater can have a low fluid capacity heating chamber which has an inlet and an outlet, an electric heat source for heating the water, and a controller to control the electric heat source and maintain the temperature of the water at a predetermined temperature setting. The on-demand water heater can be powered by a direct current power source. The on-demand water heater can also utilize a solar thermal system to provide additional heat to the water.

Abstract: A water heating system is disclosed. The system may include a water heater connected with a utility energy source via one or more circuit breakers. The system may further include a battery and a detection unit. The battery may provide energy to the water heater, and the detection unit may detect water demand associated with the system. The system may additionally include a controller configured to activate the water heater in a first operation mode when the water demand is less than a predefined threshold. The water heater may heat water by using energy drawn from the utility energy source in the first operation mode. The controller may further activate the water heater in a second operation mode when the water demand is greater than the predefined threshold. The water heater may draw energy from the utility energy source and the battery in the second operation mode.

Abstract: The instant disclosure relates generally to oral inoculation and specifically to methods to prepare nasopharyngeal and oral material for oral inoculation of COVID-19. Severe acute respiratory syndrome coronavirus 2 (“SARS-CoV-2”) viral particles are collected from at least one of a nasopharyngeal specimen and an oral specimen each derived from a patient infected with SARS-CoV-2 or a SARS-CoV-2 variant. Mammalian cells (e.g., Vero-E6 and/or Vero-CCL81 cells) are infected with the SARS-CoV-2 viral particles to produce infected mammalian cells. The infected mammalian cells are cultured to produce a mammalian cell culture. SARS-CoV-2 viral particles are collected from the mammalian cell culture to produce isolated viral particles. The isolated viral particles are frozen to produce a frozen isolate. The frozen isolate is partitioned into a plurality of tablets each having a therapeutically effective amount of the SARS-CoV-2 viral particles. An enteric coating is applied to each tablet.

Abstract: A handle assembly is for transporting a structure. The handle assembly includes a retention member configured to be secured to the structure, a coupling apparatus coupled to the retention member and configured to couple the retention member to the structure, and a handle coupled to the retention member and configured to allow the structure to be transported when the retention member is coupled to the structure.

Abstract: Systems, devices and methods for wirelessly charging a water heater device are presented. A system for wirelessly charging a water heating device, the system comprising: the water heating device, wherein the water heating device comprises a water heating element; a wireless power transmitter configured to: receive a first electrical current from a first power source; and generate a magnetic field, an ultrasonic wave, a microwave, a wireless power transmission, or a laser pulse based on the first electrical current; and a wireless power receiver configured to: generate a second electrical current based on the magnetic field, the ultrasonic wave, the microwave, the wireless power transmission, or the laser pulse; and provide the second electrical current to the water heating element or to a second power source of the water heating device.

Abstract: A portable bath tub water heater is provided that includes a water pump and a heating element to heat water in a bath tub, wherein the portable bath tub water heater is configured to recirculate bath tub water using inlet and outlet tubes at least partially submerged in the water. The portable bath tub water heater is configured to be disposed on and/or nearby the bath tub in any number of different ways. After usage, the portable bath tub water heater may be purged of any remaining water and stored for future use.

Abstract: The present disclosure is directed to systems and methods for automatically shutting off fluid flow through a fluid inlet line of a water heater upon detection of a leak of the water heater. The system may include an electrically powered shutoff assembly operatively coupled to the fluid inlet line, and a capacitor operatively coupled to the electrically powered shutoff assembly. The electrically powered shutoff assembly may be configured to shut off fluid flow through the fluid inlet line upon detection of a leak of the water heater, and the capacitor may be configured to store power received from an external power source. Accordingly, when the electrically powered shutoff assembly does not have access to electric power, the capacitor may power the electrically powered shutoff assembly to shut off fluid flow through the fluid inlet line.

Abstract: The present disclosure is directed to a mechanical and powerless leak detection and shutoff system that may be used in any commercially available water heater, e.g., both gas and electric. The system includes a spring-loaded shutoff assembly having a valve member operatively coupled to a fluid inlet line of the water heater. A handle of the shutoff assembly is maintained in an open configuration via a latching mechanism until a force is applied to cause the latching mechanism to release the handle and actuate the valve member to shutoff fluid flow through the fluid inlet line. The shutoff assembly is operatively coupled to a leak detection assembly via a cable. The leak detection assembly uses a fluid-soluble material that dissolves when exposed to fluid to thereby pull the cable to apply the force to disengage the latching mechanism.

Abstract: A system for placing a person in electrical continuity with the ground in order to reduce the buildup of electric charge on a person's body. The system of the present invention comprises a shoe with an attached shoe grounding device and a plurality of grounded mats. The shoe grounding device is attached to the shoe in a manner that puts the interior surface of the body of the shoe in electrical continuity with the heel of the shoe. The heel of the shoe can be placed in electrical continuity with the ground by placing the heel of the shoe on top of any of the plurality of grounded mats, which are connected to the ground by a grounding wire. The system as a whole allows a person using the system to place themselves in electrical continuity with the ground.

Abstract: A tankless electric water heater system including a heating chamber having an inlet at a first end and an outlet at a second end, a heating element connected to the heating chamber, a first temperature sensor disposed near the first end of the heating chamber, a second temperature sensor disposed near the second end of the heating chamber, a flow sensor configured to detect a flow of water and disposed near the heating chamber, and a controller connected to the first and second temperature sensors, the flow sensor, and the heating element. The controller is configured to have a set point temperature, to detect temperature and flow data from the first and second temperature sensors, and the flow sensor, and to provide as output a power setting to the heating element.

Abstract: The disclosed technology includes a tankless liquid heater system for detecting buildup on a heating element, including: a chamber; at least one heating element to heat liquid in the chamber; at least one sensor to detect data associated with identifying buildup on the at least one heating element; and at least one device to: receive the data detected by the at least one sensor; determine, based on the data, an amount of the buildup on the at least one heating element; and adjust an operation of the at least one heating element based on the amount of the buildup on the at least one heating element.

Abstract: The disclosed technology includes an on-demand water heater which uses an electric heat source to heat the water. The on-demand water heater can have a low fluid capacity heating chamber which has an inlet and an outlet, an electric heat source for heating the water, and a controller to control the electric heat source and maintain the temperature of the water at a predetermined temperature setting. The on-demand water heater can be powered by a direct current power source. The on-demand water heater can also utilize a solar thermal system to provide additional heat to the water.

Abstract: A system for placing a person in electrical continuity with the ground in order to reduce the buildup of electric charge on a person's body. The system of the present invention comprises a shoe with an attached shoe grounding device and a plurality of grounded mats. The shoe grounding device is attached to the shoe in a manner that puts the interior surface of the body of the shoe in electrical continuity with the heel of the shoe. The heel of the shoe can be placed in electrical continuity with the ground by placing the heel of the shoe on top of any of the plurality of grounded mats, which are connected to the ground by a grounding wire. The system as a whole allows a person using the system to place themselves in electrical continuity with the ground.

Abstract: The instant disclosure relates generally to oral inoculation and specifically to methods to prepare nasopharyngeal and oral material for oral inoculation of COVID-19. Severe acute respiratory syndrome coronavirus 2 (“SARS-CoV-2”) viral particles are collected from at least one of a nasopharyngeal specimen and an oral specimen each derived from a patient infected with SARS-CoV-2 or a SARS-CoV-2 variant. Mammalian cells (e.g., Vero-E6 and/or Vero-CCL81 cells) are infected with the SARS-CoV-2 viral particles to produce infected mammalian cells. The infected mammalian cells are cultured to produce a mammalian cell culture. SARS-CoV-2 viral particles are collected from the mammalian cell culture to produce isolated viral particles. The isolated viral particles are frozen to produce a frozen isolate. The frozen isolate is partitioned into a plurality of tablets each having a therapeutically effective amount of the SARS-CoV-2 viral particles. An enteric coating is applied to each tablet.

Abstract: Disclosed is a system for monitoring facial presentation of a first user to a second user. The system may include at least one image capturing device configured for capturing at least one image of the first user. Further, the system may include a communication device communicatively coupled to the at least one image capturing device. Further, the system may include a processing device communicatively coupled to the communication device. The communication device may be configured for transmitting the at least one image to a processing device. The processing device may be configured for analyzing the at least one image. The processing device may be configured for identifying a face of the first user based on the analyzing. Further, the processing device may be configured for generating facial presentation data based on the identifying. Further, the system may include a storage device configured for storing the facial presentation data.

Abstract: A tankless electric water heater system including a heating chamber having an inlet at a first end and an outlet at a second end, a heating element connected to the heating chamber, a first temperature sensor disposed near the first end of the heating chamber, a second temperature sensor disposed near the second end of the heating chamber, a flow sensor configured to detect a flow of water and disposed near the heating chamber, and a controller connected to the first and second temperature sensors, the flow sensor, and the heating element. The controller is configured to have a set point temperature, to detect temperature and flow data from the first and second temperature sensors, and the flow sensor, and to provide as output a power setting to the heating element.

Abstract: A liquid flow device to receive fluid and laminarize the fluid flow. The liquid flow device includes a jet nozzle assembly to receive the fluid and direct the fluid through a plurality of jet channels and a flow disruptor assembly to receive the fluid from the jet nozzle assembly to generate a flow path of the fluid. The liquid flow device also includes a chamber assembly connected to the flow disruptor to receive the fluid from the flow disruptor assembly and an outlet assembly, open to an external environment to receive the fluid from the chamber assembly and output the fluid with a laminar flow pattern.

Abstract: A tankless electric water heater system including a heating chamber having an inlet at a first end and an outlet at a second end, a heating element connected to the heating chamber, a first temperature sensor disposed near the first end of the heating chamber, a second temperature sensor disposed near the second end of the heating chamber, a flow sensor configured to detect a flow of water and disposed near the heating chamber, and a controller connected to the first and second temperature sensors, the flow sensor, and the heating element. The controller is configured to have a set point temperature, to detect temperature and flow data from the first and second temperature sensors, and the flow sensor, and to provide as output a power setting to the heating element.