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:
Dec. 31, 2002
Filed:
Nov. 21, 2001
Pedro Queiroz Vieira, Parede, PT;
C.T.R. Consultoria Tecnica e Representacoes Lda, Almargem do Bispo, PT;
Abstract
The present invention relates to an evaporation device for volatile substances, in particular insecticides and/or aromatics, which includes a housing and a heating unit located therein. Heating Unit comprises a heating block in which an electric resistance element is contained for heating. In addition device includes a container that can be connected to housing for a substance to be evaporated. A wick can be inserted into the container with a wick end protruding from the container for the evaporation of the substance contained in the container to be heated by the heating unit. According to the invention, electric resistance element advantageously includes a rod-shaped resistance body coated, at least in some areas, with a resistance layer that is cut to provide a predetermined resistance value according to the composition of the substance to be evaporated. In this manner, a heating unit with small dimensions and miniaturized evaporation device is provided for the evaporation of volatile substances.