Rolls-royce Corporation

Smiths Industries Plc

Mark William Turner

Kenneth Franklin Udall

Jeffrey Allen

James M Townsend

Alistair J E Smith

Philippus L Crouse

James Martin Townsend

A method and system for removing substances from a surface, in which the surface is irradiated by high-energy laser radiation, characterized in that the laser parameters are chosen to selectively remove one or more predetermined substances from the surface without removing other substances from the surface.

Laser cleaning of components

A hollow aerofoil () comprises an aerofoil portion () having a leading edge (), a trailing edge (), a concave pressure surface wall () extending from the leading edge () to the trailing edge () and a convex suction surface () extending from the leading edge () to the trailing edge (). The concave pressure surface wall () and the convex suction surface wall () are integral and define a cavity (). A plurality of webs () extend across the cavity () between the concave pressure surface wall () and the convex suction surface wall (). At least one of the webs (A) extends substantially perpendicularly to the concave pressure surface wall () and the convex suction surface wall () and at least one of the webs (B) extends substantially diagonally to the concave pressure surface wall () and the convex suction surface wall ().

Hollow aerofoil and a method of manufacturing a hollow aerofoil

A tracheostomy tube assembly comprises an outer tracheostomy tube and an inner cannula of a flexible material preformed to the shape of the outer tube and smooth on its inside and outside. The outer tube is straight at its patient end and has a short straight machine end with a coupling. The patient and machine ends are separated by a curved intermediate region divided along its length into two sub-regions. The first sub-region closer the machine end has a small radius of curvature; the other sub-region closer to the patient end has a radius of curvature at least three times that of the first sub-region. This shape enables the patient end of the assembly to be aligned with the patient's trachea.

Tracheostomy tubes and assemblies

A tracheal tube or other medico-surgical device has a surface coating containing lysozyme enzyme, which is effective to reduce the build-up of bacteria on the tube.

Growing community of inventors

Folkestone, United Kingdom

Mark William Turner