Imperial Chemical Industries Limited

The Procter Gamble Company

Reckitt & Colman Products Limited

Zafirios Vachlas

Timothy J. Noakes

Stephen J. Thorne

Timothy J Noakes

Michael Leslie Green

Maurice Joseph Prendergast

Andrew Jefferies

Ian D Pavey

Michale Leslie Green

Andrew Jeffries

Ronald Alan Coffee

Colin M Waters

Arend L Grocott

Stuart C Ord

Nevil E Hewitt

John J Chambers

Brian A Reed

Richard Llewellyn Powell

Raymond C Rowe

Edward J Bals

Peter Frederick Wilde

Graham C Johnson

Michael L Colclough

Chiyoji Hitomi

Gay Joyce Cornelius

Edward H Wilson

Robert A Anstey

Philip C Franks

Stephen J Bancroft

Douglas Bray

Stephen J Thorne

An electrostatic spraying device for use in spraying inter alia personal care and personal hygiene products comprises an outlet (,) from which the product issues in the form of an electrostatically charged spray and a control member (,) for attenuating the potential gradient in the vicinity of the outlet (,) to such an extent that spraying is suppressed until the device is brought to within a predetermined distance from a site to be spayed.

Spraying devices

A process for extracting a compound or composition of matter from a raw material containing that compound or composition as a constituent part is disclosed. The process comprises the steps of (1) contacting a sample of the raw material with an extraction solvent comprising 1,1,1,2-tetrafluoroethane and a co-solvent selected from an alkane and a hydrocarbon ether, (2) forming a solvent liquor comprising the extraction solvent and an extract from the raw material, and (3) separating the solvent liquor containing the extract from the raw material.

Process for the extraction of a compound by a fluorocarbon compound

Electrostatic spraying of particulate material

Electrostatic spraying

An electrostatic spraying device is disclosed which is suitable for, but not limited to, dispensing an electrostatically sprayable substance for nasal or oral inhalation. Electrical charge is imparted to the spray particles by applying a high voltage to the substance prior to break up into a spray. In one embodiment, the device includes a nozzle portion for registry with the nasal or oral cavity and defines a passageway through which, in use, air can be drawn by inhalation on the part of the user. The substance to be sprayed passes into the passageway so that, with the assistance of user-induced air flow through the passageway, the resulting spray passes into the oral or nasal cavity.

High voltage generator

Electrostatic spraying devices with hazardous condition warning system

Electrostatic spraying device

Spraying device

Photoelectric switch

Electrostatic spraying device and method of fabrication thereof

Relatively low resistivity liquids are formed into sprays under the influence of an applied electric field acting between a nozzle and the nozzle surroundings which may be at earth potential. The liquid issues from the nozzle as a ligament which undergoes necking to a diameter smaller than that of the nozzle orifice, thereby producing droplets with a volume median diameter less than the orifice diameter.

Apparatus for ligament made electrostatic spraying

An electrostatic spraying device comprises a housing (10) incorporating a cartridge (16) containing liquid, such as a fragrance-producing oil, which is to be sprayed via a vertically disposed capillary structure (22), electrical potential being applied to the liquid so that the liquid is drawn across the end face of the capillary structure and is sprayed as a plurality of ligaments which break up into droplets.

Apparatus and method for ligament mode electrostatic spraying

Growing community of inventors

Clwyd, United Kingdom

Timothy J Noakes