Abstract: A backpack includes a back panel having an airflow system. The airflow system includes protrusions extending from a base of the back panel and defining boundaries of lateral and vertical flow channels. The flow channels are configured to promote active airflow through the back panel.

Abstract: A backpack includes a back panel having an airflow system. The airflow system includes protrusions extending from a base of the back panel and defining boundaries of lateral and vertical flow channels. The flow channels are configured to promote active airflow through the back panel.

Abstract: A backpack includes a back panel having an airflow system. The airflow system includes protrusions extending from a base of the back panel and defining boundaries of lateral and vertical flow channels. The flow channels are configured to promote active airflow through the back panel.

Abstract: A backpack includes a back panel having an airflow system. The airflow system includes protrusions extending from a base of the back panel and defining boundaries of lateral and vertical flow channels. The flow channels are configured to promote active airflow through the back panel.

Abstract: A measuring fluid dispenser for dispensing fluids in measured quantities has a user input device for generating at least one user input signal. A flow regulator provides a known fluid output flow rate by regulating fluid flow between an input port and an output port of the regulator. A first electronic valve is responsive to electronic signals, wherein a first electronic signal positions the first electronic valve in a flow permissive state, and a second electronic signal positions the first electronic valve in a flow restrictive (i.e. interrupting) state. The first electronic valve has a first valve input in fluid communication with the regulator output and also has a first valve output in fluid communication with a fluid output port. A processing unit is communicable with the user input device and is responsive to the user input signal, and is also in electronic communication with the first electronic valve for transmitting the electronic signals to the first electronic valve.

Abstract: An interchangeable bag and cover system is provided that comprises a body with a first connection portion. A first securing mechanism is coupled to the body. A plurality of covers are interchangeably connectable to the body. Each cover has a second connection portion releasably attachable to the first connection portion of the body, wherein the cover is moveable relative to the body between open position and closed positions. Each cover has a free end portion positionable adjacent to the body when the cover is in the close position. Each cover has a second securing mechanism configured to releasably engage the first securing mechanism to retain the cover in the closed position.

Abstract: An interchangeable bag and cover system is provided that comprises a body with a first connection portion. A first securing mechanism is coupled to the body. A plurality of covers are interchangeably connectable to the body. Each cover has a second connection portion releasably attachable to the first connection portion of the body, wherein the cover is moveable relative to the body between open position and closed positions. Each cover has a free end portion positionable adjacent to the body when the cover is in the close position. Each cover has a second securing mechanism configured to releasably engage the first securing mechanism to retain the cover in the closed position.

Abstract: A measuring fluid dispenser for dispensing fluids in measured quantities has a user input device for generating at least one user input signal. A flow regulator provides a known fluid output flow rate by regulating fluid flow between an input port and an output port of the regulator. A first electronic valve is responsive to electronic signals, wherein a first electronic signal positions the first electronic valve in a flow permissive state, and a second electronic signal positions the first electronic valve in a flow restrictive (i.e. interrupting) state. The first electronic valve has a first valve input in fluid communication with the regulator output and also has a first valve output in fluid communication with a fluid output port. A processing unit is communicable with the user input device and is responsive to the user input signal, and is also in electronic communication with the first electronic valve for transmitting the electronic signals to the first electronic valve.