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:
Aug. 17, 2004
Filed:
Aug. 29, 2002
Andrew Robert Edwards, Aberdare RCT, GB;
Andrew Robert McLeish, Sheffield, GB;
Reckitt Benckiser (UK) Limited, Slough, GB;
Abstract
A diffuser includes a base portion and a lid portion. The diffuser is adapted to allow emanation of vapor from a burning block of combustible material and contains a block receiving portion elevated from a surface of the base portion. The block receiving portion has one or more grooves formed in a top surface of the block receiving portion and extending below the top surface of the block receiving portion. The base portion further includes apertures forming channels extending from within the base portion to an outer surface of the base portion. The lid portion is preferably substantially pyramidal in shape and has an apex at an end remote from the base portion. The lid portion further includes apertures positioned towards the apex. In use, a burning block of combustible material, impregnated with fragrance, is placed on the block receiving portion, and the lid portion is placed over the block. The base and lid apertures, together with the grooves in the block receiving portion, serve to optimize the air flow within the diffuser, thus optimizing emanation of the fragrance from the block.