A DISPENSER

• Main Author: BONNEY, STANLEY, GEORGE
• Format: Patent
• Language: English; French; German
• Published: 14.10.2009
• Subjects: APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; ATOMISING APPARATUS; DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY; HAIRDRESSING OR SHAVING EQUIPMENT; HAND OR TRAVELLING ARTICLES; HUMAN NECESSITIES; HYGIENE; MANICURING OR OTHER COSMETIC TREATMENT; MEDICAL OR VETERINARY SCIENCE; NOZZLES; PERFORMING OPERATIONS; SPRAYING APPARATUS; SPRAYING OR ATOMISING IN GENERAL; TRANSPORTING

A dispenser 1 for dispensing a metered volume of a fluid product has a storage chamber 9 for storing the fluid product in; an outlet orifice 21 through which the fluid product is dispensable from the dispenser; and a dispensing mechanism adapted in use to dispense a metered volume of the fluid product through the outlet orifice. The dispensing mechanism has a metering chamber 19 which is adapted in use to provide a metered volume of the fluid product for discharge through the outlet orifice. The metering chamber is movable between a first volumetric state, in which the metering chamber has a first volume greater than the metered volume and is in fluid communication with the storage chamber such that, in use, an excess volume of the fluid product consisting of a metered volume and a surplus volume is transferable to the metering chamber, and a second volumetric state, in which the metering chamber has a second volume less than the first volume and no less than a metered volume and is isolated from the storage chamber such that, in use, a metered volume of the fluid product is contained in the metering chamber. The dispensing mechanism further has a bleed arrangement 11, 20 adapted in use to bleed a surplus volume of the fluid product from the metering chamber as its moves from the first volumetric state to the second volumetric state.