Abstract: Bite-valves are synonymous with personal hydration systems. Their action is to provide regulation of fluid that is drawn from the hydration reservoir by supplying a vacuum or by sucking like on a straw. Bite valves are placed in line and usually at the end of the line with the tube or hose that communicates with the reservoir. Bite-valves are normally closed and are opened when the person performs a biting action on the valve itself. Bite valves should provide the user with a perfect seal, high flow characteristics, and be small in size. Slit-type valves today are kinematically inefficient and as a consequence their flow rates are relatively slow compared to the inventor's bite-valve. This valve made of elastomeric material incorporates two angled slits along opposing vertical edges that are perpendicular to the biting direction or action. The general shape of the cross section at the site of the slitted septum is rectangular. The rectangular geometric shape is important in the flow dynamics of this valve.

Abstract: Bite-valves are synonymous with personal hydration systems. Their action is to provide regulation of fluid that is drawn from the hydration reservoir by supplying a vacuum or by sucking like on a straw. Bite valves are placed in line and usually at the end of the line with the tube or hose that communicates with the reservoir. Bite-valves are normally closed and are opened when the person performs a biting action on the valve itself. Bite valves should provide the user with a perfect seal, high flow characteristics, and be small in size. Slit-type valves today are kinematically inefficient and as a consequence their flow rates are relatively slow compared to the inventor's bite-valve. This valve made of elastomeric material incorporates two angled slits along opposing vertical edges that are perpendicular to the biting direction or action. The general shape of the cross section at the site of the slitted septum is rectangular. The rectangular geometric shape is important in the flow dynamics of this valve.