Measured fluid dispenser
AssigneeAms AG
InventorsMatthew BATTLE, Adrian BISCHOFF
Life of this patent
Estimating the term…
Abstract
A measured fluid dispenser for dispensing fluid from a storage container includes a measurement chamber, a fluid flow passage fluidly connecting the measurement chamber with the storage container, and a valve that is movable between an open position in which the fluid flow passage is opened to permit fluid flow from the storage chamber to the measurement chamber, and a closed position in which the fluid flow passage is closed to prevent fluid flow between the measurement chamber and the storage chamber. The measurement chamber may be adjustable to vary a fillable volume of the measurement chamber to thereby preselect an amount of fluid to be dispensed.
Claims20
An adjustable measured fluid dispenser for dispensing fluid from a storage chamber of a storage container, the fluid dispenser comprising:
- a measurement chamber of a measurement container having a fillable volume;
- a divider configured to separate the measurement chamber from the storage chamber of the container;
- at least one fluid flow passage extending through the divider and being configured to fluidly connect the measurement chamber with the storage chamber of the container;
- at least one check valve configured to open the at least one fluid flow passage and permit fluid flow from the storage chamber to the measurement chamber, and configured to close the at least one fluid flow passage to prevent fluid flow between the measurement chamber and the storage chamber, the at least one check valve being configured to open at a predefined cracking pressure;
- and
- wherein the fillable volume of the measurement chamber is adjustable to adjust an amount of fluid to be contained in the measurement chamber.
A measured fluid dispenser for dispensing fluid from a storage chamber of a storage container, the fluid dispenser comprising:
- a measurement chamber of a measurement container having a fillable volume;
- a cap operably couplable to the container, the cap at least partially forming a divider configured to separate the measurement chamber from the storage chamber of the container;
- a first flow passage and a second flow passage, each extending through the divider and being configured to fluidly connect the measurement chamber with the storage chamber of the container;
- a first check valve configured to open the first flow passage and permit liquid to flow in one direction from the storage chamber to the measurement chamber, and configured to close the first flow passage to prevent liquid flow between the measurement chamber and the storage chamber;
- a second check valve configured to open the second flow passage and permit air to flow in one direction from the measurement chamber to the storage chamber, and configured to close the second flow passage to prevent fluid flow between the measurement chamber and the storage chamber;
- wherein the first check valve is configured to open at a first predefined cracking pressure to permit liquid to flow through the first flow passage from the storage chamber of the container into the measurement chamber, and the second check valve is configured to open at a second predefined cracking pressure to permit air in the measurement chamber that is displaced by the liquid to escape from the measurement chamber into the storage chamber of the container;
- and
- wherein the second cracking pressure is lower than the first cracking pressure.
An adjustable measured fluid dispenser for dispensing fluid from a storage chamber of a storage container, the fluid dispenser comprising:
- a measurement chamber of a measurement container having a fillable volume;
- a cap operably couplable to the container, the cap at least partially forming a divider configured to separate the measurement chamber from the storage chamber of the container, the measurement container being fluidly sealed to the cap with at least one seal;
- at least one fluid flow passage extending through the divider and being configured to fluidly connect the measurement chamber with the storage chamber of the container;
- and
- at least one valve configured to open the at least one fluid flow passage and permit fluid flow from the storage chamber to the measurement chamber, and configured to close the at least one fluid flow passage to prevent fluid flow between the measurement chamber and the storage chamber;
- the cap having one or more axially extending guide slots that slidably receive and guide corresponding one or more radially inwardly extending guide protrusions on an inner portion of the measurement container, such that the measurement container is slidably movable axially upwardly and downwardly relative to the cap to adjust the fillable volume of the measurement chamber, and
- one or more detents arranged at an interface between the cap and measurement container that are configured to indicate discrete graduated fillable volumes of the measurement chamber.
Dependencies are inferred from the claim text.