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Dispenser for a liquidRelated Patent Categories: Dispensing, Resilient Wall, Supply Container Delivering To Receiving ChamberDispenser for a liquid description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070102455, Dispenser for a liquid. Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS REFERENCE TO RELATED APPLICATION [0001] This application claims priority to European Patent Application No. 05023369.1, filed on Oct. 26, 2005, the contents of which are incorporated herein by reference. FIELD OF THE INVENTION [0002] This invention relates to a dispenser for a liquid, and preferably to a device for dispensing liquid in the form of a spray. The dispenser of the present invention can be used, for example, for dispensing liquids such as medicines, including nasal and throat sprays, compositions for application to the eyes and ears, for example eye drops, eardrops and ear sprays, perfumes, cosmetics, cleaning products and the like. In the following description particular reference will be made to the use of the dispenser in relation to medicines, though it is to be understood that the dispenser has many uses, including those just mentioned above. BACKGROUND OF THE INVENTION [0003] Particularly in the field of dispensers for medicines, there are a significant number of challenges which have to be met in order for a dispenser to be properly effective. These include: [0004] (a) the need to maintain the sterility of the contents of the dispenser throughout its life. [0005] (b) the ability to dispense a dose to the degree of accuracy appropriate to the use concerned, and to do so not just when the device is first used but throughout all subsequent uses. [0006] (c) the avoidance of clogging at the dispenser outlet (this is not only advantageous for its own sake, but is also relevant to the achievement of both (a) and (b) just mentioned). [0007] (d) ease and cheapness of manufacture, at least to the extent permitted by the need to achieve the preceding aims. [0008] (e) compactness, at least in the case of dispensers which the user may need to carry around for use during the day. [0009] There are numerous proposals in the art for dispensers which are intended to meet at least some of the preceding aims, and, by way of example, attention is directed to WO03/097250 (Genosar), U.S. Pat. No. 6,460,781 (Garcia et al.) and U.S. Pat. No. 6,769,579 (Milian et al.). However, although benefits may be achievable by use of dispensers made in accordance with these and other proposals, none is believed to be wholly satisfactory in all respects, and the present invention is directed, in its various aspects, to the achievement of some or all of the above aims, and to the achievement of other aims which will become apparent from the ensuing description. SUMMARY OF THE INVENTION [0010] According to some embodiments of the invention, there is provided a dispenser for a respiratory tract treatment composition, comprising: [0011] a) a reservoir containing a fluid which is a respiratory tract treatment composition; and [0012] b) a pump in fluid communication with the reservoir, the pump comprising a dose chamber and a pump actuator; and [0013] c) an outlet orifice in fluid communication with the reservoir and the pump such that actuation of the pump is able to effect delivery of fluid from the dispenser through the outlet orifice, [0014] characterised in that the reservoir comprises a laminated container which is adapted to delaminate as fluid is dispensed therefrom. [0015] In some embodiments of the invention a dispenser for a liquid may comprise: [0016] a) a reservoir suitable for containing the liquid, the reservoir comprising a laminated container comprising an outer layer which comprises a rigid material and at least one further layer inwardly thereof, which is delaminatable from the outer layer; and [0017] b) a pump in fluid communication with the reservoir and with an outlet orifice, the pump comprising an upper pump half comprising a resilient actuator connected to the upper pump half, and a lower pump half, wherein depression of the resilient actuator is effective to dispense a dose of fluid via the pump, and wherein the upper and lower pump halves are each formed from unitary mouldings. [0018] In some embodiments, a liquid dispenser may comprise: [0019] a) a pump body including two spaced-apart major surfaces having interconnected peripheral edges to define therebetween a substantially closed reservoir to contain a liquid to be dispensed therefrom, the major part of said body being substantially rigid, [0020] b) a pumping chamber having an inlet valve communicating with said reservoir, and an outlet valve communicating with an outlet orifice, the chamber being actuated by a pumping button provided along one of said major surfaces, wherein said pumping button defines a part of one of said major surfaces and serves as a wall of said pumping chamber and depression of the pumping button to its displaced position is adapted to cause liquid contained in said pumping chamber to be expelled via said outlet valve, and return of said button to its first normal position causes liquid to enter said pumping chamber via said inlet valve; wherein the dispenser further comprises an air inlet opening, in fluid communication with the reservoir, enabling ambient air to enter the reservoir during return of said button to its first normal position and following dispensing of the fluid, the air inlet opening being occluded by a cover which is gas-permeable, to permit gas to flow into the reservoir, but impermeable to the liquid contained within the reservoir preferably the gas-permeable cover is impervious to microorganisms which might otherwise enter the reservoir. [0021] In some embodiments, a liquid dispenser may comprise: [0022] a) a body including two spaced-apart major surfaces having interconnected peripheral edges to delimit there between a closed reservoir capable of containing a liquid to be dispensed, the major part of said body being substantially rigid; [0023] b) a pump actuated by a pumping button provided along one of said major surfaces, wherein said pumping button is formed as a part of one of said major surfaces; wherein the dispenser further comprises a dispensing nozzle in fluid communication with the pump and comprising an outlet orifice for dispensing the fluid, said nozzle being provided with an expulsion channel and with a closure member disposed in fixed manner in the expulsion channel upstream from said outlet orifice, said closure member comprising a fixed portion fixed relative to the outlet orifice and an elastically-deformable portion supporting a closure element which, at rest, closes off the outlet orifice and which, when the elastically-deformable portion deforms, opens the outlet orifice. Continue reading about Dispenser for a liquid... Full patent description for Dispenser for a liquid Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Dispenser for a liquid patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Dispenser for a liquid or other areas of interest. ### Previous Patent Application: Surgical stapling instruments structured for pump-assisted delivery of medical agents Next Patent Application: Fluid product dispenser Industry Class: Dispensing ### FreshPatents.com Support Thank you for viewing the Dispenser for a liquid patent info. 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