The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 13, 2012
Filed:
Dec. 21, 2007
Jeremy Leonard Clive Ludlow, Hampshire, GB;
Jonathan Geoffrey Gore, Hampshire, GB;
Adrian Robert Bowles, Hampshire, GB;
Mark Gregory Maylin, Hampshire, GB;
Richard Carson Mcbride, Hampshire, GB;
Abdul-salam Kaddour, Hampshire, GB;
Ahmed Yehia Amin Abdel-rahman, Hampshire, GB;
Jeremy Leonard Clive Ludlow, Hampshire, GB;
Jonathan Geoffrey Gore, Hampshire, GB;
Adrian Robert Bowles, Hampshire, GB;
Mark Gregory Maylin, Hampshire, GB;
Richard Carson McBride, Hampshire, GB;
Abdul-Salam Kaddour, Hampshire, GB;
Ahmed Yehia Amin Abdel-Rahman, Hampshire, GB;
Qinetiq Limited, , GB;
Abstract
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.