Qinetiq Limited

Abdul-Salam Kaddour

Jonathan Geoffrey Gore

John Cook

Richard Carson McBride

Mark Gregory Maylin

Ahmed Yehia Amin Abdel Rahman

Adrian Robert Bowles

Jeremy Leonard Clive Ludlow

Ahmed Yehia Amin Abdel-Rahman

Richard Carson Mcbride

David Gordon Madgwick

Ahmed Yehia Amin Abdel Rahaman

The invention provides rupturing devices for mitigating the explosive reaction of a casing (), hollow tubular body or container, particularly a munition, when it is subject to an external thermal hazard threat. The devices are based on the use of shape memory alloys. The device comprises an element of shape memory alloy () which is joined together by a connector () to form an annulus, which may be located on an exterior surface of a munitions casing () or launch such that upon heating through its transition temperature range will cause the annulus to contract radially inwardly, thereby rupturing the munition (), allowing any build up of pressure to be released quickly. Advantageously, the connector () is. reversible such that the device will be capable of being retro-fitted or removed during normal servicing of the munition ().

Rupturing devices

A high pressure pump for use in the injection of liquid chemicals into subsea oil or gas wells, and intended to be positioned in the subsea environment adjacent to the wellhead, comprises a piezoelectric actuator () for reciprocating a plunger () which acts to compress and expand the effective volume of a pumping chamber () having a valved inlet () connected to a source of the liquid and a valved outlet () to lead the liquid to the well. The device has a minimum of moving parts and in particular avoids the need for any rotating parts and attendant high performance bearings and seals.

Subsea chemical injection system and pumps therefor

Growing community of inventors

Farnborough, United Kingdom

Abdul-Salam Kaddour