United Distillers, Plc

Carglass Luxembourg Sarl-zug Branch

Neville Richard Ledger

Robert Marc Clement

Christopher Davies

Mary Violet Stockdale

Allan Cameron

Robert P Sunman

Christopher Edward Jeffree

Bonded screens such as vehicle windscreens ( ) bonded to a supporting frame ( ) by homogeneous bonding material ( ) are released by firstly arranging energy delivery means ( ) adjacent the screen and subsequently transmitting energy from the delivery means through the screen thereby to effect release of the screen ( ) from the frame ( ) by either causing degradation of some of the homogeneous bonding material and/or cleavage or degradation of the screen material. The energy delivered may, for example, be ultrasonic or laser radiation, and is preferably arranged to be concentrated at a predetermined localized region to enhance the release mechanism.

Releasing of bonded screens

Method of laser marking a body of material having a thermal conductivity

Dynamic laser marking

A method and apparatus for providing a body of material (14) with sub-surface marking in the form of an area of increased opacity to electromagnetic radiation. The method includes directing at a surface of the body (14) a high energy density beam (12, 26) to which the material (14) is transparent, and bringing the beam (12,26) to a focus at a location spaced from the surface and within the body (14) so as to cause localized ionization of the material (14). In a prefered embodiment the apparatus includes a laser (10) as a high energy density beam source and provides means (36, 38) to move the focus of the beam (12,26) relative to the body (14) so as to enable the mark to be of a predetermined shape.

Sub-surface marking

Growing community of inventors

Morriston, United Kingdom

Neville Richard Ledger