Abstract: A method of improving the spraying of liquid droplets from a spray device onto a surface which method comprises imparting a unipolar charge to the said liquid droplets by double layer charging during the spraying of the liquid droplets from the spray device, the unipolar charge being at a level such that the said droplets have a charge to mass ratio of at least ±1×10−4 C/kg, whereby the charged droplets of the liquid are mutually repelled thereby increasing the spread of the droplets from a central spray line extending from the head of the spray device and avoiding coalescence of the droplets, thus providing a more even coverage of the surface which is to be sprayed. In particular, the method enables liquid droplets to be sprayed onto a surface which is obscured by all object located between the surface and the spray device.

Abstract: An improved method of counteracting or neutralizing airborne malodour comprising directing at the source of the malodour liquid droplets from a spray device containing a malodour counteracting composition, the improved method comprising imparting a unipolar charge to the said liquid droplets by double layer charging during the spraying of the liquid droplets by the spray device, the unipolar charge being at a level such that the said droplets have a charge to mass ratio of at least ±1×10−4C/kg.

Abstract: A system for generating a photographic product from a digital image. A gateway server receives a request from a photographer for a list of options for photographic products. The gateway server transmits a display of a list of options to the photographer. The photographer submits an order for a photographic product to the gateway server. The gateway server then transmits the order to a fulfillment center to process the order. The gateway server then transmits routing information to the photographer for transmitting a digital image to the fulfillment center.

Abstract: An improved method of denaturing or deactivating an airborne allergen comprising directing at the airborne source of the allergen liquid droplets from a spray device containing a liquid composition which includes an allergen denaturant or allergen deactivant, the improved method comprising imparting a unipolar charge to the said liquid droplets by double layer charging during the spraying of the liquid droplets by the spray device, the unipolar charge being at a level such that the said droplets have a charge to mass ratio of at leaset ±1×10−4 C/kg.

Abstract: A method of reducing the droplet sizes of a composition sprayed from an aerosol spray device comprising a compressed gas propellant, which method comprises imparting a unipolar charge to the liquid droplets by double layer charging during the spraying of the liquid droplets from the aerosol spray device, the unipolar charge being at a level such that the said droplets have a charge to mass ratio of at least +/−1×10−4 C/kg.

Abstract: A method of killing flying insects which method comprises spraying into the air in which insects are flying liquid droplets of an insecticidal composition, a unipolar charge being imparted to the said liquid droplets by double layer charging and charge separation during spraying, the unipolar charge being at a level such that the said droplets have a charge to mass ratio of at least +/−1×10−4 C/kg.

Abstract: A device for dispensing a volatile liquid as a vapour which comprises a reservoir of the volatile liquid and which includes a porous element which permits the passage of vapour therethrough but does not permit the passage of the liquid therethrough, characterized in that the porous element comprises a laminate of paper/polymer/paper, the polymer being selected from an ethylene/vinyl acetate copolymer and/or an ionomer resin, and in that the volatile liquid comprises one or more fragrance components having a dipole moment in the range of from 0 to 3 Debyes and a hydrogen bonding parameter of from 0 to 22 Gordys.

Abstract: This invention is a valve for isolating a fluid such as petroleum, oil or gas, in a fluid system, in the event of fire breaking out. A fusible cap containing a valve element collapses at a lower temperature than the material in the rest of the system, allowing the valve element to seal the system under pressure of a spring.