Patents Assigned to C.T.R. Consultoria Tecnica E Representacoes LDA
  • Patent number: 6912355
    Abstract: The invention relates to an evaporation device (4) for the evaporation of volatile active substances, in particular aromatic substances and/or insecticides, including a housing (3) and a heating device (2) within the housing having a heating body (1), capable of being heated to an evaporation temperature for the evaporation of the active substance. According to the invention, the heating body (1) is in formed from a heat-conducting synthetic material encapsulating a heating element (5). Heat from the heating element is transferred through the heat conducting heating body to evaporate the active substance. A heating device (2) of this type can be produced easily and economically with little manufacturing expenditure. The invention furthermore relates to a heating device to be used in a device for the evaporation of volatile active substances as well as to a method for the production of the heating device.
    Type: Grant
    Filed: January 8, 2004
    Date of Patent: June 28, 2005
    Assignee: C.T.R., Consultoria Tecnica e Representacoes Lda.
    Inventor: Pedro Queiroz Vieira
  • Patent number: 6896196
    Abstract: A container (1) for volatile substances which can be evaporated by an evaporation device is disclosed having a container body (2) in which the volatile substances are contained. A container neck (3) extends away from the container body (2) in which a container opening (4) is formed. Furthermore, a wick retaining insert (8) in the form of a cylindrical sleeve is provided that can be placed in the container opening (4) of the container neck (3). There is an insert wick passage (9) for the insertion of the wick (10) having an outside wall (13) which presses, at least partially, against an inside container neck wall (15) in a wick clamping connection when inserted. Wick retention is provided by the insert so that wick (10) is secured from being pulled out of the container (1) when inserted. According to the invention wick (10) can be inserted through wick passage (9) of wick retaining insert (8) when the wick retaining insert is not inserted.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: May 24, 2005
    Assignee: C.T.R. Consultoria Tecnica E Representacoes LDA
    Inventor: Pedro Queiroz Vieira
  • Patent number: 6501906
    Abstract: The present invention relates to an evaporation device 1 for volatile substances, in particular insecticides and/or aromatics, which includes a housing 2 and a heating unit 10 located therein. Heating Unit 10 comprises a heating block 11 in which an electric resistance element 15 is contained for heating. In addition device 1 includes a container 3 that can be connected to housing 2 for a substance to be evaporated. A wick 6 can be inserted into the container with a wick end 8 protruding from the container 3 for the evaporation of the substance contained in the container 3 to be heated by the heating unit. According to the invention, electric resistance element 15 advantageously includes a rod-shaped resistance body 17 coated, at least in some areas, with a resistance layer 16 that is cut to provide a predetermined resistance value according to the composition of the substance to be evaporated.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: December 31, 2002
    Assignee: C.T.R. Consultoria Tecnica e Representacoes Lda
    Inventor: Pedro Queiroz Vieira
  • Patent number: 6446583
    Abstract: An evaporation device 2 is disclosed for the evaporation of volatile substances, in particular insecticides and aromatics, which includes a housing 13 which contains a heating element and a container 50 for a substance to be evaporated. This container 50 contains a wick which is associated with the heating element with a wick end 30 protruding from container 50. The heating element can be longitudinally displaced near the container 50 in the housing 13 relative to the wick end 30 to adjust the degree of evaporation. According to the invention, the heating element is carried on a movable heater assembly that can be displaced longitudinally in the housing relative to the wick end. The movable heater assembly can be fixed in different positions relative to the wick end 30 and the longitudinal direction of the wick axis for the adjustment of the degree of evaporation.
    Type: Grant
    Filed: December 18, 2000
    Date of Patent: September 10, 2002
    Assignee: C.T.R. Consultoria Técnica e Representacöes Lda
    Inventor: Pedro Queiroz Vieira