Abstract: An example apparatus includes a bracket having a rack attachment member and a guard attachment member, and upper and lower engagement tabs that are coupled to the rack attachment member and have a stem portion and a head portion. The rack attachment member has a lock pin hole above the lower rack engagement tab. The lock pin hole is sized and positioned to provide sufficient cross-sectional area within a rack engagement distance to allow passage of a bracket lock pin therethrough within the rack engagement distance. The apparatus further includes a bracket lock pin having a stabilizing leg coupled to a lock pin head, where the stabilizing leg fits through the lock pin hole and the lock pin head does not. The stabilizing leg urges the lock pin head toward the lock pin hole when the stabilizing leg is passed through the lock pin hole.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a storage device, for accommodating unattended services at a property. In one aspect, a monitoring system is disclosed that includes a processor and a storage device storing instructions that, when executed by the processor, cause the processor to perform operations. The operations can include receiving a request to enter the property to perform the unattended service, configuring the monitoring system to allow access to a first portion of the property associated with the unattended service without triggering an alarm event, obtaining image data of the property after the monitoring system is configured to allow access to the first portion of the property, determining, based on the obtained image data, that an unattended service provider has entered into a second, different portion of the property, and triggering an alarm event.

Abstract: Modular pure water systems are provided that have a tank and a cover assembly, wherein the tank and cover assembly are configured to removably receive therebetween one or more expansion tubes in a fluid tight manner to allow for selective volume expansion of the pure water system. Also provided are purification media bags for pure water systems that have a shape, construction, and/or material that mitigates the flow of water between the outer wall of the bag and an inner wall of the pure water systems.

Abstract: A power system including a variable volume combustion chamber for a two-stroke engine having a controlled exhaust port, a fuel injector to the combustion chamber and an oxygen injector to the combustion chamber. The oxygen injector provides repeated oxygen injection pulses to complete a charge. The controlled exhaust port includes an oscillating rotatably mounted valve. A source of pressurized concentrated oxygen to the oxygen injector is in a closed case having a ceramic fiber membrane. An air inlet and a waste outlet are in communication with a first side of the ceramic fiber membrane. An oxygen outlet is in communication with a second side of the ceramic fiber Ionic transport membrane. The case has a heat transfer surface in communication with the controlled exhaust port from the combustion chamber.

Abstract: An apparatus for removing impurities from water and/or wastewater and a method of installing a fluid distribution system in the apparatus. In the most preferred form of the invention, the fluid distribution system is an air scour system for directing air through the filter bed to assist in cleaning of the filter bed to remove impurities trapped in the filter bed during a service run. In the most preferred form, the method of installing the fluid distribution system in the filter bed is performed by imparting a force to the filter bed to permit the fluid distribution system to be installed in the filter bed without removing media. The fluid distribution system is preferably configured to permit the fluid distribution system to be readily installed in the filter bed and at an optimum orientation.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a storage device, for alerting a user immersed in a virtual reality environment to the occurrence of an event. In one aspect, a system includes sensors and a monitoring unit. The monitoring unit includes a network interface, a processor, and a storage device that includes instructions to cause the processor to perform operations. The operations include detecting the occurrence of an event at a property, determining that a user who is located at the property is immersed in a virtual reality environment at a time of occurrence of the event at the property, based on determining that the user who is located at the property is immersed in the virtual reality environment at the time of the occurrence of the event, generating an alert notification that is configured to initiate the user's emergence from the virtual reality environment.

Abstract: Disclosed are cleaning devices and methods of use thereof for cleaning a vertical stack plumbing system. The cleaning device includes a first cylindrical body defining a first opening for selectively introducing a predetermined amount of cleaning medium into the cleaning device; a second cylindrical body defining a second opening configured to maintain airflow and venting of the vertical stack plumbing system when the cleaning device is in use, the first and second cylindrical bodies being directly connected to a main body of the cleaning device and in fluid communication with one another through the main body; and an attachment member defining a third opening that is directly connected to the main body of the cleaning device, the attachment member configured for direct removable attachment to a plumbing waste pipe in the vertical stack plumbing system and for receiving the cleaning medium therethrough to introduce the cleaning medium into the vertical stack plumbing system.

Abstract: A method, system, and medium related to data retrieval using tags and routing rules to optimize the data retrieved and the response time for the data retrieval by decreasing the latency of the response and by increasing the efficacy of the dynamic content delivery is provided. A message request is received from a client server. A local server determines if the digital content resides on a local server by comparing a tagged rule for the message request with a tagged rule associated with the local server. If the local server determines, by comparing the tagged rules, that the digital content does not reside on the local server, the local server sends the message request for the digital content to a service server. The service server then parses the tagged rule associated with the message request into a set of tree-based hierarchical tagged rules.

Abstract: A video game includes a plurality of components providing for opportunities for increased social interaction of users playing the video game. The video game may be a music-based video game, and a server may provide content of the video game to game devices for play at predefined times.

Abstract: Disclosed are cleaning devices and methods of use thereof for cleaning a vertical stack plumbing system. The cleaning device includes a first cylindrical body defining a first opening for selectively introducing a predetermined amount of cleaning medium into the cleaning device; a second cylindrical body defining a second opening configured to maintain airflow and venting of the vertical stack plumbing system when the cleaning device is in use, the first and second cylindrical bodies being directly connected to a main body of the cleaning device and in fluid communication with one another through the main body; and an attachment member defining a third opening that is directly connected to the main body of the cleaning device, the attachment member configured for direct removable attachment to a plumbing waste pipe in the vertical stack plumbing system and for receiving the cleaning medium therethrough to introduce the cleaning medium into the vertical stack plumbing system.

Abstract: A monitoring system that is configured to monitor a property includes a connected scale device that is configured to receive a package, determine a weight of the package, and after determining the weight of the package, arm the connected scale device, and a monitoring control unit that is configured to receive, from the connected scale device, data indicating that the connected scale device received the package and the connected scale device is armed, and based on receiving the data indicating that the connected scale device received the package and the connected scale device is armed, communicate, to a user device of a resident of the property, a notification indicating that the connected scale device received the package.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a storage device, for monitoring a property using drone beacons. In one aspect, a monitoring system is disclosed that includes a drone, a drone beacon, a component, a processor, and a computer storage media storing instructions that, when executed by the processor, cause the processor to perform operations. The operations may include obtaining drone beacon data generated by the drone beacon, determining a location of the drone beacon based on the drone beacon data, after determining the location of the drone beacon, transmitting, to the drone, a first instruction to navigate towards the location of the drone beacon, after deploying the drone, obtaining component data generated by the component, and after obtaining the component data, transmitting, to the drone, a second instruction to navigate towards a different location than the location of the drone beacon based on the component data.

Abstract: An edible piñata system may have an edible piñata including edible upper and lower shells, a hanging rod for attaching the edible piñata to a hanging assembly, a support plate for supporting the edible piñata and edible contents, and the hanging assembly for supporting the edible piñata, hanging rod, and support plate to suspend the edible piñata for consumption. The edible piñata system may be made by a method for producing an edible piñata.

Abstract: Provided are assays or methods for identifying antibodies that bind to microorganisms, e.g., pathogenic microorganisms, such as bacteria other infectious agents. In some embodiments, the provided methods for identifying an antibody that binds the target microorganism involves gel encapsulation of antibody-producing cells in gel microdroplets with a target microorganism. Also provided are antibodies produced by the method. Also provided are antibodies that bind a conserved region or epitope across variants or species of Acenitobacter.

Abstract: The present disclosure relates to pharmaceutical formulations of [(4-hydroxy-1-methyl-7-phenoxy-isoquinoline-3-carbonyl)-amino]-acetic acid and methods of use thereof.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a storage device are disclosed for generating a map for use in safely navigating hazards detected at a property. One method may include actions of receiving a request for a safe path to a property occupant that is located inside the property, obtaining a floor plan of the property, obtaining real-time sensor data generated by one or more sensors installed at the property that includes (i) sensor data indicative of a hazard at the property and (ii) a current location of the property occupant, generating a map of the property based on (i) the obtained real-time sensor data and (ii) the obtained floor plan, determining a safe path between an exit of the property and the current location of the property occupant, and providing, for output on a user device, the map of the property that visually indicates the safe path.

Abstract: An edible piñata system may have an edible piñata including edible upper and lower shells, a hanging rod for attaching the edible piñata to a hanging assembly, a support plate for supporting the edible piñata and edible contents, and the hanging assembly for supporting the edible piñata, hanging rod, and support plate to suspend the edible piñata for consumption. The edible piñata system may be made by a method for producing an edible piñata.