Abstract: A portable equipment stand to hold tactical equipment, protective equipment, and/or uniforms is disclosed. An example portable equipment stand includes a central frame, three legs hingedly connected to a first end of the central frame, two arms hingedly connected to a second end of the central frame, and a neck located at the second end of the central frame. The legs are rotatable between a first retracted position and a first deployed position. The two arms are located on opposing sides of the central frame and are rotatable between a second retracted position and a second deployed position. The neck is configured to move from a third retracted position to a third deployed position. The arms are configured to enclose at least a bottom portion of the legs when the arms are in the second retracted position and the legs are in the first retracted position.

Abstract: A resistance device for an exercise machine may include a resistance element such as a fan or impeller that rotates within a cavity of a housing to produce resistance to a user's input. The resistance levels can be adjusted by a user by adjusting a movable baffle. The movable baffle may include an adjustment mechanism comprising a contoured guide surface that interacts with a protrusion on an adjacent component to move a portion of an outer region of the movable baffle outward to allow additional air into the cavity of the housing to adjust the resistance of the resistance device.

Abstract: A rowing exercise machine includes a first frame member and a second frame member that are pivotally connected to each other to have a use position and a storage position. The rowing exercise machine may include a resistance device connected to the first frame member and a seat that is slidably engaged with the second frame member. A locking assembly may be used to fixedly secure the first frame member and the second frame member when the rowing exercise machine is in the use position.

Abstract: A portable oxygen concentrator designed for medical use where the sieve beds, adsorbers, are designed to be replaced by a patient. The concentrator is designed so that the beds are at least partially exposed to the outside of the system and can be easily released by a simple user-friendly mechanism. Replacement beds may be installed easily by patients, and all gas seals will function properly after installation.

Abstract: An extractor for a grinder. The extractor includes a partially enclosed body for positioning around a grinding disc of the grinder, the body having first and second walls welded to a covering portion that extends partially around a perimeter of each wall. The extractor further includes a port on the body with a passageway from the body to an outlet of the port, wherein vacuum applied to the extraction port draws grinding particulate created by operation of the grinder on a material from inside the body to the outlet for extraction. A barrel grinder that includes an extractor. A method of fabricating an extractor for a grinder.

Abstract: Apparatus and methods for proactively and preemptively communicating with a user interacting with a software application are provided. The apparatus and methods may include an artificial intelligence/machine learning communication engine monitoring and tracking a user's interactions. The apparatus and methods may include the communication engine determining if the user requires further training, if the interaction is fraudulent, and pre-empting requests for information the user may commence. The apparatus and methods may include the communication engine creating and displaying training materials for the user to complete, revoking access if fraud is present, and proactively providing information before the user requests the information.

Abstract: Portable oxygen concentrator elements are described including integrated sensor/accumulator assemblies, new muffler designs, and improved airflow and internal gas connectivity. The result of the elements is an extremely compact, light reliable portable oxygen concentrator that is easy to assemble and relatively inexpensive.

Abstract: Apparatus and methods for proactively and preemptively communicating with a user interacting with a software application are provided. The apparatus and methods may include an artificial intelligence/machine learning communication engine monitoring and tracking a user's interactions. The apparatus and methods may include the communication engine determining if the user requires further training, if the interaction is fraudulent, and pre-empting requests for information the user may commence. The apparatus and methods may include the communication engine creating and displaying training materials for the user to complete, revoking access if fraud is present, and proactively providing information before the user requests the information.

Abstract: Apparatus and methods for continuous real-time authentication are provided. The apparatus and methods may include using a biometric sensor on an Internet-of-things (“IoT”) device to measure a biometric attribute of a user. The measured biometric attribute may be transmitted to a server to compare to a stored biometric attribute and authenticate the user. The IoT device may continue to measure the biometric attribute of the user at a pre-determined interval. Each measurement may be used to authenticate the user. This continuous authentication process may take place without the user's conscious interaction with the IoT device. The apparatus and methods may include using the continuous authentication to process and approve a transaction the user requests.

Abstract: Apparatus and methods content-based biometric authentication are provided. The apparatus and methods may include multiple biometric sensors and an authentication engine that decides which sensor(s) to use through a context-based analysis. The apparatus and methods may include requesting authentication, analyzing the request to determine which sensor(s) is appropriate, prompting a user to use the sensor(s) and comparing the data received with data stored in a database to provide authentication.

Abstract: A portable oxygen concentrator designed for medical use where the sieve beds, adsorbers, are designed to be replaced by a patient. The concentrator is designed so that the beds are at least partially exposed to the outside of the system and can be easily released by a simple user-friendly mechanism. Replacement beds may be installed easily by patients, and all gas seals will function properly after installation.

Abstract: An exercise bike includes a frame, a rotor assembly and a drive assembly mounted on the frame, where the drive assembly is configured to drive rotation of the rotor assembly, and a cover configured to at least partially cover the rotor assembly. The components of the drive assembly and the rotor assembly include structures that improve the performance of the exercise bike, including but not limited to a strong and rigid construction and improvements in belt tracking, user feel, effort consistency, synchronization, and rotor performance.

Abstract: Apparatus and methods for content- and context-based biometric authentication are provided. The apparatus and methods may include using multiple biometric sensors and an authentication engine that decides which sensor(s) to use through a content- and/or context-based analysis. The apparatus and methods may include requesting authentication, analyzing the request to determine which sensor(s) is appropriate, prompting a user to use the sensor(s) and comparing the data received with data stored in a database to provide authentication.

Abstract: An exercise bike includes a frame, a pedal assembly, and a rotor mounted on the frame and operably connected to the pedal assembly. The rotor includes a hub with a plurality of blades extending radially outward from the hub. A rotor cover is mounted on the frame and at least partially encloses the rotor, and has opposed side portions and a middle portion extending between the side portions. One side portion has an opening, and the rotor cover further has slots extending on opposite sides of the middle portion. The bike also includes a moveable baffle that is moveable to selectively restrict air passage through the opening, and an actuator connected to the moveable baffle and including a handle and two legs extending into the slots. The actuator is moveable by the legs traveling along the slots to adjust the moveable baffle.