Abstract: A head-mounted display configured to be worn on a face includes a housing, a facial interface coupled to a rear portion of the housing and configured to engage with the face, a component chamber defined in the housing, and a fan located in the component chamber and configured to create air flow from the face through the facial interface and the component chamber.

Abstract: An active seat includes a seat disposed at a first end of a body; a convex surface disposed at a second end of the body; and a stacking notch defined at an intermediate location along the body. The convex surface defines at least a first rocking path about which the active seat tilts. The stacking notch defines a flat surface recessed laterally inwardly from an outer periphery of the body taken at the first and second ends.

Abstract: An active seat includes a seat disposed at a first end of a body; a convex surface disposed at a second end of the body; and a stacking notch defined at an intermediate location along the body. The convex surface defines at least a first rocking path about which the active seat tilts. The stacking notch defines a flat surface recessed laterally inwardly from an outer periphery of the body taken at the first and second ends.

Abstract: Filters for use in conjunction with valves of the faucet or spigot type, and to filters for use in devices for withdrawing liquids from containers at relatively low pressures, such as gravity feed jugs or other gravity feed reservoirs. A ¼-turn attachment scheme for connecting a filter cartridge to a gravity feed reservoir, such as within a beverage making/dispensing device.

Abstract: Filter cartridge designs for use in conjunction with valves of the faucet or spigot type for withdrawing liquids at relatively low pressures from containers such as gravity feed jugs, ice chests, coolers, collapsible travel bags, and the like, wherein the filter cartridge housings have various shapes and attachment schemes to the spigot subassembly.

Abstract: Buckles for use in exercise assemblies employing force restorative exercise straps. A looped component and a hooked component of the buckle hold the exercise strap. The looped component and the hooked component can be pivotally mounted to each other. The buckle can hold the strap in two orientations, on an end of a looped strap, or at an adjustable position of the looped strap.

Abstract: A jump rope includes an elongated flexible member (e.g., a rope) that extends between two handle arrangements. The elongated flexible member can be stored within the handle arrangements. For example, each handle arrangement can hold a spool on which a portion of the flexible member can be wound. The portions of the flexible member can be automatically retracted within the handles.

Abstract: Buckles for use in exercise assemblies employing force restorative exercise straps. A looped component and a hooked component of the buckle hold the exercise strap. The looped component and the hooked component can be pivotally mounted to each other. The buckle can hold the strap in two orientations, on an end of a looped strap, or at an adjustable position of the looped strap.

Abstract: A jump rope includes an elongated flexible member (e.g., a rope) that extends between two handle arrangements. The elongated flexible member can be stored within the handle arrangements. For example, each handle arrangement can hold a spool on which a portion of the flexible member can be wound. The portions of the flexible member can be automatically retracted within the handles.

Abstract: A trunk lift assessment device includes a tower extending upwardly from a base; an arm extending outwardly from the tower, a gauge disposed at the tower, and an indicator coupled to the first end of the arm so that the indicator moves relative to the gauge when the arm is pivoted relative to the tower. The arm is configured to remain fixed relative to the tower when no external force is applied to the second end of the arm. The arm also is configured to pivot relative to the tower when an external force is applied to the second end of the arm.

Abstract: Filters for use in conjunction with valves of the faucet or spigot type, and to filters for use in devices for withdrawing liquids from containers at relatively low pressures, such as gravity feed jugs or other gravity feed reservoirs. A ¼-turn attachment scheme for connecting a filter cartridge to a gravity feed reservoir, such as within a beverage making/dispensing device.

Abstract: A trunk lift assessment device includes a tower extending upwardly from a base; an arm extending outwardly from the tower, a gauge disposed at the tower, and an indicator coupled to the first end of the arm so that the indicator moves relative to the gauge when the arm is pivoted relative to the tower. The arm is configured to remain fixed relative to the tower when no external force is applied to the second end of the arm. The arm also is configured to pivot relative to the tower when an external force is applied to the second end of the arm.

Abstract: Filter cartridge designs for use in conjunction with valves of the faucet or spigot type for withdrawing liquids at relatively low pressures from containers such as gravity feed jugs, ice chests, coolers, collapsible travel bags, and the like, wherein the filter cartridge housings have various shapes and attachment schemes to the spigot subassembly.