Dual chambered fluid dispenser with mixing chamber
First Claim
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1. A fluid dispensing device, comprising:
- a first flexible fluid reservoir containing a first fluid, the first flexible reservoir having an interior, an exterior and a first opening therethrough;
a first metered dispensing pump for outputting a measured amount of the first fluid from the first fluid reservoir, the first metered dispensing pump having a flexible dispensing button protruding from the interior to the exterior of the first flexible fluid reservoir through the first opening;
a second flexible fluid reservoir containing a second fluid, the second flexible reservoir having an interior, an exterior and a first opening therethrough;
a second metered dispensing pump for outputting a measured amount of the second fluid from the second fluid reservoir, the second metered dispensing pump having a flexible dispensing button protruding from the interior to the exterior of the second flexible fluid reservoir through the first opening;
a mixing chamber to receive and mix the output of the first and second metered dispensing pumps;
an exit aperture through which mixed first and second fluids are delivered.
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Abstract
A dispensing device is provided that includes at least two separate reservoirs therein and a dispenser for mixing and delivering a substantially equal metered dose of fluid material from the reservoirs with each dispensing operation. In one example, the present invention relates to a dispenser for mixing and delivering hair colorant that allows the user to dispense a metered dose of the hair colorant components in a manner that measures and mixes those components with each dispensing operation. An optional applicator may be provided for even distribution of the dispensed hair colorant material.
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Citations
19 Claims
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1. A fluid dispensing device, comprising:
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a first flexible fluid reservoir containing a first fluid, the first flexible reservoir having an interior, an exterior and a first opening therethrough; a first metered dispensing pump for outputting a measured amount of the first fluid from the first fluid reservoir, the first metered dispensing pump having a flexible dispensing button protruding from the interior to the exterior of the first flexible fluid reservoir through the first opening; a second flexible fluid reservoir containing a second fluid, the second flexible reservoir having an interior, an exterior and a first opening therethrough; a second metered dispensing pump for outputting a measured amount of the second fluid from the second fluid reservoir, the second metered dispensing pump having a flexible dispensing button protruding from the interior to the exterior of the second flexible fluid reservoir through the first opening; a mixing chamber to receive and mix the output of the first and second metered dispensing pumps; an exit aperture through which mixed first and second fluids are delivered. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A fluid dispensing device, comprising:
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a first flexible fluid reservoir containing a first fluid; a first metered dispensing pump for outputting a measured amount of the first fluid from the first flexible fluid reservoir; a second flexible fluid reservoir containing a second fluid; a second metered dispensing pump for receiving the first fluid output from the first metered dispensing pump and mixing the first fluid output with a measured amount of second fluid from the second fluid reservoir; an exit aperture through which mixed first and second fluids are delivered; and wherein the first and second metered dispensing pumps each further comprise; a flexible metering housing, having a metering chamber therein with a predetermined volume, disposed in fluid communication with the first and second fluid reservoirs; a first valve disposed between each pump'"'"'s respective fluid reservoir and the flexible metering housing to permit unidirectional fluid flow from each pump'"'"'s respective fluid reservoir into the metering chamber thereby filling the predetermined volume of the metering chamber, the flexible metering housing further including a metering housing output port; and a second valve, having a second valve output port permitting unidirectional fluid flow of a volume of fluid substantially equal to the predetermined volume of the metering chamber from the metering chamber via the second valve output port. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A fluid dispensing device, comprising:
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a flexible fluid reservoir having an interior, an exterior and a dividing wall forming a first reservoir and a second reservoir, the first reservoir containing a first fluid and the second reservoir containing a second fluid, a first opening in the flexible fluid reservoir; a metered dispensing pump for outputting a measured amount of fluid from the fluid reservoir, the metered dispensing pump having a flexible dispensing button protruding from the interior to the exterior of the first fluid reservoir through the first opening; and wherein the dividing wall is configured to rupture upon applying sufficient pressure to the flexible reservoir allowing the first and second fluid to mix within the flexible fluid reservoir. - View Dependent Claims (17, 18, 19)
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Specification