초록 ▼

A fluid dispensing apparatus having no moving parts in contact with the fluid includes a fluid chamber and a measuring cup having an open top disposed in the fluid chamber. The fluid chamber is connected to a fluid source which supplies fluid to fill the chamber to a pre-determined level above the t

A fluid dispensing apparatus having no moving parts in contact with the fluid includes a fluid chamber and a measuring cup having an open top disposed in the fluid chamber. The fluid chamber is connected to a fluid source which supplies fluid to fill the chamber to a pre-determined level above the top of the measuring cup. As the fluid chamber is being filled, the fluid overflows and fills the measuring cup. A first sensor indicates when the fluid reaches the pre-determined level above the top of the measuring cup and stops the flow of fluid into the fluid chamber. A drain, which is responsive to the first sensor, drains fluid from the fluid chamber until the fluid level drops to a predetermined level below the top of the measuring cup. As the fluid level in the fluid chamber recedes, a pre-determined volume of fluid is captured in the measuring cup. A second sensor indicates when the fluid level drops to the pre-determined level below the top of the measuring cup and stops the flow of fluid from the fluid chamber. A dispensing valve, which is responsive to the second sensor, dispenses the contents of the measuring cup. A third sensor indicates when the contents of the measuring cup are dispensed and starts the flow of fluid into the fluid chamber to begin a new cycle.

대표청구항 ▼

A process for dispensing pre-measured volumes of a fluid comprising: a) providing a fluid chamber; b) placing a measuring cup having an open top and an outlet port inside the fluid chamber; c) filling the fluid chamber to a level above the open top of the measuring cup, wherein the fluid rising in t

A process for dispensing pre-measured volumes of a fluid comprising: a) providing a fluid chamber; b) placing a measuring cup having an open top and an outlet port inside the fluid chamber; c) filling the fluid chamber to a level above the open top of the measuring cup, wherein the fluid rising in the fluid chamber will overflow the sides of the measuring cup and cause the measuring cup to become filled, d) draining the fluid from the fluid chamber after the measuring cup is filled so that a pre-determined volume of fluid is trapped inside the measuring cup when the fluid level drops below the top of the measuring cup; and e) dispensing the contents of the measuring cup after the fluid level in the fluid chamber drops below the top of the measuring cup.