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US 11,768,095 B2Granted
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.
Claims19
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;
- the at least one check valve includes a first check valve, the at least one fluid flow passage includes a first fluid flow passage, and the predefined cracking pressure is a first predefined cracking pressure,
- the dispenser further comprising a second fluid flow passage extending through the divider and being configured to fluidly connect the measurement chamber with the storage chamber of the container, and further comprising a second check valve configured to open or close the second fluid flow passage, the second check valve being configured to open at a second predefined cracking pressure,
- the first check valve being configured to open at the first cracking pressure to permit liquid to flow through the first fluid flow passage from the storage chamber of the container into the measurement chamber,
- the second check valve being configured to open at the second 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 first and/or second check valve is an umbrella valve having a sealing disc that seals against the divider to close the respective first and/or second fluid flow passage, and in which the sealing disc separates from the divider to open the respective first and/or second fluid flow passage.
9 more elements
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;
- wherein the fillable volume of the measurement chamber is adjustable to adjust an amount of fluid to be contained in the measurement chamber;
- wherein the divider has at least one outlet of the at least one fluid flow passage that opens into the measurement chamber;
- wherein the fillable volume of the measurement chamber is at least partially defined by internal surfaces of the measurement container, wherein at least one internal surface of the measurement container is movable relative to the outlet and/or the divider to adjust the fillable volume of the measurement chamber;
- and
- wherein a bottom surface of the measurement container is axially movable toward or away from the outlet and/or the divider to adjust the fillable volume of the measurement chamber.
6 more elements
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;
- wherein the fillable volume of the measurement chamber is adjustable to adjust an amount of fluid to be contained in the measurement chamber;
- wherein the divider is at least partially formed by an intermediate part of the dispenser, the intermediate part having one or more axially extending guide slots that slidably receive corresponding one or more guide protrusions of the measurement container, such that the measurement container is slidably movable axially relative to the intermediate part to adjust the fillable volume of the measurement chamber, and
- wherein the intermediate part and/or the measurement container includes detents that are arranged to indicate discrete graduated fillable volume of the measurement chamber.
4 more elements
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;
- wherein the fillable volume of the measurement chamber is adjustable to adjust an amount of fluid to be contained in the measurement chamber;
- wherein the measurement container includes at least one part this is configured to flex in response to an input force from a user to thereby deform the measurement container and release at least one of:
- a detent, a catch, a locking mechanism, or a seal that seals the measurement chamber.
4 more elements
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;
- wherein the fillable volume of the measurement chamber is adjustable to adjust an amount of fluid to be contained in the measurement chamber;
- wherein the measurement container includes at least one dividing wall that divides the measurement chamber into at least two measurement chamber regions having differently sized fillable volumes;
- wherein the fillable volume is adjustable by selecting one of the at least two measurement chamber regions and arranging the selected chamber region relative to the divider such that an outlet of the at least one fluid flow passage opens into the selected chamber region.
4 more elements
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.
5 more elements
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.
4 more elements
Dependencies are inferred from the claim text.