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:
Feb. 05, 2008
Filed:
Feb. 16, 2005
Geoffrey Matthews, Oxford, GB;
Andrew Hamshere, Buckinghamshire, GB;
Joseph Stone, Buckinghamshire, GB;
Oliver Bishop, Hampshire, GB;
Andrew Forbes, West Sussex, GB;
Brian Blackburn, Buckinghamshire, GB;
Geoffrey Matthews, Oxford, GB;
Andrew Hamshere, Buckinghamshire, GB;
Joseph Stone, Buckinghamshire, GB;
Oliver Bishop, Hampshire, GB;
Andrew Forbes, West Sussex, GB;
Brian Blackburn, Buckinghamshire, GB;
Airflow Developments Limited, High Wycombe, Buckinghamshire, GB;
Abstract
In order to provide a simple design of ventilation device which has a relatively open aperture of pleasing aesthetic appearance, there is provided a facefor facing into a room, the face including an aperture. Three closure partsare provided for closing the aperture. The closure partsare rotatably mounted adjacent to the apertureabout pivotslocated around the periphery of the aperture. A drive means is provided for moving the closure parts between an open position and a closed position. A suitable fancan be provided for drawing air through the aperture when the closure parts are in the open position. In a first aspect of the invention, the closure partseach comprise closures surfaces having edges, the edges abutting one another in the closed position. In a second aspect of the invention, there is drive memberfor contacting a drive partof a closure part, the drive partbeing located close to the pivot. In a third aspect of the invention, the drive meansis configured to act on a drive partof each closure part, the pivotand the drive partbeing mounted on the same side of the closure part