Abstract: Doorbell systems can include a doorbell and a chime. In some embodiments, the chime can be communicatively coupled to a wireless network of a building, to the doorbell, and to a remote computing device. In several embodiments, the chime facilitates communication with at least one of the doorbell, the remote computing device, and a remote sensor.

Abstract: The disclosure includes a doorbell having a visitor detection system that can comprise at least one of a camera, a microphone, and a motion detector. The method for using the doorbell can comprise recording, via the camera, video data that represents a video. The method can also comprise recording, via the microphone, audio data that represents audio. The method of using the doorbell can comprise transmitting at least a portion of the video data and at least a portion of the audio data, to a remote computing device that is communicatively coupled to the doorbell. The method can also comprise transmitting the video data and the audio data to a remote server that is communicatively coupled to the doorbell.

Abstract: Embodiments of the present disclosure are directed toward an air diffuser that includes a mounting plate having an opening in a center portion of the mounting plate, where the opening is configured to be coupled to ductwork, a low flow adapter coupled to the mounting plate and disposed over the opening, where the low flow adapter includes extruded nozzles configured to increase a velocity and induction of air flow directed toward an interior space, and where the extruded nozzles are disposed at an angle with respect to a horizontal plane defined by the center portion of the mounting plate, and a diffusion plate coupled to the mounting plate, such that the low flow adapter is positioned between the mounting plate and the diffusion plate.

Abstract: A damper inspection system for a heating, ventilating, and air conditioning (HVAC) system includes a fuse link sensor configured to couple to a damper. The fuse link sensor includes a first contact and a second contact. The fuse link sensor is configured to transition between an engaged configuration in which the first contact is electrically coupled to the second contact and a disengaged configuration in which the first contact is electrically decoupled from the second contact. The damper inspection system includes a remote controller that includes control circuitry configured to electrically couple to the first contact and the second contact and to determine an operational status of a fuse link of the damper based on an electrical continuity between the first contact and the second contact.

Abstract: A damper system includes a damper housing configured to flow air, a damper blade disposed in the damper housing and having an orifice, the damper blade being rotatable in the damper housing between a closed position and an open position. The orifice is configured to allow air to flow through the damper blade while the damper blade is in the closed position. An auto-balancing damper is disposed in the damper housing apart from the damper blade, and the auto-balancing damper is configured to regulate a flow of the air through the damper housing.

Abstract: A method of operating a doorbell system can include receiving, by a remote computing device, a notification of an emergency event and in response to the receiving, illuminating at least one light of a doorbell to indicate an occurrence of the emergency event. The method can further include, in response to receiving the notification, initiating a communication with an emergency dispatcher and/or an emergency contact. The at least one light can illuminate in a variety of colors and illumination patterns corresponding to the type of emergency event.

Abstract: An Electronic Health Record (EHR) data blockchain system configured to allow multiple entities (e.g., pharmacy industry entities and healthcare providers that can act as data, service, product and service providers, and consumers) to connect to an EHR patient transaction blockchain (e.g., EHR-DATA-BC) and an EHR Data Patient Portal (e.g., EHR-Data-PP) to provide a centralized location for messages and subsequent edits to ensure uniform message data is presented. The EHR data blockchain system can include an EHR Data API, an EHR patient transaction blockchain API, and an EHR patient transaction blockchain. The EHR data blockchain system can provide workflow on the blockchain that can utilize smart contracts to define workflow processes, expected outcomes, and financial costs. When a prescription transaction is complete, it will result in the settlement of each of the smart contracts that were added to the prescription workflow.

Abstract: A system and method of immutable electronic health record data storage is presented. The present disclosure provides for a system integrated into a practical application with meaningful limitations to provide a system having an ‘immutable data storage protocol’ used to capture database operations on an immutable ledger. The protocol can consist of one or more ‘operation codes.’ The immutable electronic health record data storage system can provide a blockchain, transaction blockchain API, a blockchain writer API, a formatting module, and a messaging module, among others, that can format, process, and store data according to an immutable data storage protocol.

Abstract: A damper assembly includes a frame having an inner surface and a protrusion extending inwardly relative to the inner surface, a damper blade coupled to the frame and configured to transition between an open position and a closed position, and a latch coupled to the inner surface of the frame. The latch is configured to deform to facilitate transition of the damper blade between the open position and the closed position and to expand to capture and retain the damper blade in the closed position, the latch includes a tab segment configured to move toward the protrusion during deformation of the latch and to move away from the protrusion during expansion of the latch, and a distal end of the tab segment overlaps with a thickness of the protrusion.

Abstract: An example an adjustable bracket and a damper system usable with the adjustable bracket assembly for transmitting an actuation force from an actuator to a plurality of damper assemblies. The adjustable bracket assembly may include a shaft extending along and configured to rotate about a first axis in response to an output from the actuator, a first output lever configured to transmit a rotational force of the shaft to a first damper assembly, and a second output lever configured to transmit the rotational force of the shaft to a second damper assembly.

Abstract: A louver blade for a louver assembly includes a first section, a second section extending from the first section and including a crest of the louver blade, an extension extending from the second section to form a recess between the extension and the second section, and a protrusion extending from the second section toward the extension and configured to facilitate retention of the particles within the recess. The extension is configured guide particles into the recess in an installed configuration of the louver blade with the louver assembly.

Abstract: A diffuser assembly includes a first blade pivotably coupled to a housing and configured to rotate about a first axis and includes second blade pivotably coupled to the housing and configured to rotate about a second axis. The diffuser assembly includes a linkage mechanism coupled to the first blade and the second blade and configured to transition between a first configuration and a second configuration. In the first configuration, the linkage mechanism is configured to induce rotation of the second blade about the second axis in a first direction in response to rotation of the first blade about the first axis in the first direction. In the second configuration, the linkage mechanism is configured to induce rotation of the second blade about the second axis in a second direction, opposite the first direction, in response to rotation of the first blade about the first axis in the first direction.

Abstract: A plenum slot diffuser includes a plenum box having five walls formed by joining edges of a C-shaped bracket having first, second, and third walls of the five walls with additional edges of an L-shaped bracket having fourth and fifth walls of the fives walls. An air input opening of the plenum box is disposed in one of the five walls and is configured to be coupled to a duct, and an open end of the plenum box defines an air output opening. The plenum slot diffuser includes at least one blade and a blade holding rod comprising a neck, wherein the neck faces away from the air output opening of the plenum box.

Abstract: Class C fly ash-based cementitious materials, concretes, and related techniques are disclosed. In accordance with some embodiments, an activated class C fly ash-based cementitious material may be produced by intergrinding class C fly ash (e.g., classified to remove quartz and/or other contaminants and, thus, increase the reactive materials present), an activator, sodium citrate, borax, and a polycarboxylate material. The class C fly ash may have an amorphous glass content of about 60 wt % or more, a calcium oxide (CaO2) content of about 20 wt % or more, and a quartz content of about 10 wt % or less. The activator may be a chemical which reacts with class C fly ash to form strätlingite structures therein when introduced with water. In some cases, the cementitious material may be provided as an all-in-one powder blend. In some cases, techniques disclosed herein may be utilized in providing a fast-setting flowable fill material.

Abstract: An Electronic Health Record (EHR) data blockchain system configured to allow multiple entities (e.g., pharmacy industry entities and healthcare providers that can act as data, service, product and service providers, and consumers) to connect to an EHR patient transaction blockchain (e.g., EHR-DATA-BC) and an EHR Data Patient Portal (e.g., EHR-Data-PP) to provide a centralized location for messages and subsequent edits to ensure uniform message data is presented. The EHR data blockchain system can include an EHR Data API, an EHR patient transaction blockchain API, and an EHR patient transaction blockchain. The EHR data blockchain system can provide workflow on the blockchain that can utilize smart contracts to define workflow processes, expected outcomes, and financial costs. When a prescription transaction is complete, it will result in the settlement of each of the smart contracts that were added to the prescription workflow.

Abstract: A security system can be configured to mount to a power outlet. The security system can include an outwardly facing portion configured to face away from the power outlet and an inwardly facing portion having a first electrical prong and a second electrical prong that protrude into the power outlet to mount the security system to the power outlet. The security system can also include a detection system comprising a camera and a motion detector.

Abstract: A system and method of immutable electronic health record data storage is presented. The present disclosure provides for a system integrated into a practical application with meaningful limitations to provide a system having an ‘immutable data storage protocol’ used to capture database operations on an immutable ledger. The protocol can consist of one or more ‘operation codes.’ The immutable electronic health record data storage system can provide a blockchain, transaction blockchain API, a blockchain writer API, a formatting module, and a messaging module, among others, that can format, process, and store data according to an immutable data storage protocol.

Abstract: A fan wheel includes a hub having a passage extending along an axis, where the passage is configured to receive a shaft. The hub includes a first mounting surface positioned at a first location along the axis and a second mounting surface offset from the first mounting surface and positioned at a second location along the axis. The fan wheel also includes a fan blade having a first mounting tab and a second mounting tab, where first mounting tab is configured to engage with and couple to the first mounting surface and the second mounting tab is configured to engage with and couple to the second mounting surface.

Abstract: Doorbells often include a button to enable visitors to ring a chime to summon building occupants. In some embodiments, doorbells include a camera to take pictures of visitors. In several embodiments, doorbells include covers that are light filters. These light filters can cover infrared light sources such as infrared light emitting diodes. The light filters can pass infrared light while blocking visible light. In several embodiments, a front portion of a camera assembly fits through a hole in a light filter. Light filters can help secure camera assemblies and can form a portion of a doorbell's outer housing.