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. 17, 2015
Filed:
Apr. 14, 2009
Carl Lee Barcock, Derby, GB;
Michael Lawrence Carlisle, Derby, GB;
Ian Murray Garry, Leicestershire, GB;
Daniel Clark, Derby, GB;
Gemma Louise Young, Staffordshire, GB;
Carl Lee Barcock, Derby, GB;
Michael Lawrence Carlisle, Derby, GB;
Ian Murray Garry, Leicestershire, GB;
Daniel Clark, Derby, GB;
Gemma Louise Young, Staffordshire, GB;
Rolls-Royce PLC, London, GB;
Abstract
A particle damper is formed using a solid freeform manufacturing technique. A filler provides support for the closing wall of the cavity as it is formed. Apertures allow at least a portion of the filler to be removed. A particle fill of between 90 and 95% is achieved either by removing sufficient filler to reach this fill or removing excess filler and re-filling with damping particles.