Abstract: An energy cutoff apparatus for a water heating system includes a safety cutoff circuit and a presence detection circuit. The safety cutoff circuit receives a temperature signal from a temperature sensor. The temperature signal is indicative of whether a temperature of water in the water heating system within a permissible temperature range. The safety cutoff circuit disables a safe operation current branch when the temperature signal indicates the water temperature is outside the permissible water temperature range. The presence detection circuit detects a presence of the temperature sensor and disables a presence detection current branch if the temperature sensor is absent. Switches can power heating elements of the water heating system responsive to the safe operation current branch being enabled and the temperature sensor being present and can disable the heat elements responsive to the safe operation current branch being disabled or the temperature sensor being absent.

Abstract: A mixing valve assembly is disclosed. The mixing valve assembly can include a cold water connector, a hot water connector, an electronic valve system, and a tube. The cold water connector can have a through-hole configured to slideably receive at least a portion of a first tubular portion of a cold water inlet, and the hot water connector can have a through-hole configured to slideably receive at least a portion of a second tubular portion of a hot water outlet. The electronic valve system can be configured to transition a valve between an open configuration and a closed configuration such that cold water can be selectively permitted to flow from the cold water connector to the hot water connector. The mixing valve assembly can be configured to selectively permit cold water to bypass the tank of water heater.

Abstract: A mixing valve assembly is disclosed. The mixing valve assembly can include a cold water connector, a hot water connector, an electronic valve system, and a tube. The cold water connector can have a through-hole configured to slideably receive at least a portion of a first tubular portion of a cold water inlet, and the hot water connector can have a through-hole configured to slideably receive at least a portion of a second tubular portion of a hot water outlet. The electronic valve system can be configured to transition a valve between an open configuration and a closed configuration such that cold water can be selectively permitted to flow from the cold water connector to the hot water connector. The mixing valve assembly can be configured to selectively permit cold water to bypass the tank of water heater.

Abstract: A mixing valve assembly is disclosed. The mixing valve assembly can include a cold water connector, a hot water connector, an electronic valve system, and a tube. The cold water connector can have a through-hole configured to slideably receive at least a portion of a first tubular portion of a cold water inlet, and the hot water connector can have a through-hole configured to slideably receive at least a portion of a second tubular portion of a hot water outlet. The electronic valve system can be configured to transition a valve between an open configuration and a closed configuration such that cold water can be selectively permitted to flow from the cold water connector to the hot water connector. The mixing valve assembly can be configured to selectively permit cold water to bypass the tank of water heater.

Abstract: An energy cutoff apparatus for a water heating system includes a safety cutoff circuit and a presence detection circuit. The safety cutoff circuit receives a temperature signal from a temperature sensor. The temperature signal is indicative of whether a temperature of water in the water heating system within a permissible temperature range. The safety cutoff circuit disables a safe operation current branch when the temperature signal indicates the water temperature is outside the permissible water temperature range. The presence detection circuit detects a presence of the temperature sensor and disables a presence detection current branch if the temperature sensor is absent. Switches can power heating elements of the water heating system responsive to the safe operation current branch being enabled and the temperature sensor being present and can disable the heat elements responsive to the safe operation current branch being disabled or the temperature sensor being absent.

Abstract: A heating, ventilation, and air condition (HVAC) system is disclosed. The HVAC system includes mode-dependent, movable barriers that can open and close to increase the efficiency of the systems. The movable barriers can be positioned proximate either a gas furnace heat exchanger or air conditioning coils. In a closed configuration, the movable barriers constrict a portion of air flow through a cabinet or other air flow conduit. The movable barriers can be activated by several means including blower airflow, springs, motors, or other such motion devices. Redundancies are also described to ensure the movable barriers are in the proper position. The redundancies described include sensors that measure the condition of the air itself as well as sensors to directly detect the position of the movable barriers.

Abstract: Examples provide a system for score-based verification of basket contents. A user trust score is generated based on the user's transaction history, item selection area data, and trust rules. The trust score provides a base value which is decremented by a predetermined amount based on behavior-related triggers detected as the user scans items during item selection to generate a temporary per-basket verification score. The triggers include a threshold number of item voids, a threshold number of unknown items scanned, and/or a threshold time elapsed after scanning an item. If the per-basket verification score is greater than or equal to a minimum threshold score, the basket is approved for check-out. If the per-basket verification score is below the threshold value, the basket of items is selected for a partial verification of the contents of the basket. If the partial verification fails, a comprehensive verification of the basket contents is initiated.

Abstract: A frangible fiberglass insulation batt includes a pair of fiberglass strips arranged to lie in side-by-side relation to one another and a frangible adhesive bridge spanning a gap between the fiberglass strips and retaining the fiberglass strips in side-by-side relation. To produce such a batt, a fiberglass insulation blanket is cut along its length to form two side-by-side fiberglass strips and then an adhesive material is applied to form a frangible adhesive bridge between the strips.

Abstract: A frangible fiberglass insulation batt includes a frangible plane defined by a series of cuts in the batt.

Abstract: A frangible fiberglass insulation batt includes a pair of fiberglass strips arranged to lie in side-by-side relation to one another and a frangible polymerized binder bridge spanning a gap between the fiberglass strips and retaining the fiberglass strips in side-by-side relation. To produce such a batt, a stream of uncured fiberglass insulation is cut along its length to form two side-by-side fiberglass strips and then passed through a curing oven to cause heat generated in the oven to polymerize (cure) binder associated with the strips in the gap to form the frangible polymerized binder bridge.

Abstract: A frangible fiberglass insulation batt includes a pair of fiberglass strips arranged to lie in side-by-side relation to one another and a frangible adhesive bridge spanning a gap between the fiberglass strips and retaining the fiberglass strips in side-by-side relation. To produce such a batt, a fiberglass insulation blanket is cut along its length to form two side-by-side fiberglass strips and then an adhesive material is applied to form a frangible adhesive bridge between the strips.