Patents Assigned to Carbonate Limited
  • Patent number: 7708256
    Abstract: A fragrance disperser in one form includes a single fan that passes air over a wicked single or double fragrance. A second form has the fan reversible to provide two different airstreams that evaporate respective different fragrances one after the other. Where two fragrances are provided, the evaporation may be by respective electrical heaters. A fragrance source may be formed by two sheets joined together to form two chambers each receiving a respective wick and having respective exposed wick portions. The source may incorporate a source of electrical power. An alternative source has a reservoir for fragrance and a wick located in an air passage forming part of the source so that an air flow is guided through the passage past the wick to evaporate fragrance. Where two fragrances are provided, the fragrance sources may be located side-by-side and matching fragrances may have, for example, matching indicia on the sources so that the match can be easily determined visually.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: May 4, 2010
    Assignee: Carbonate Limited
    Inventors: Richard P. H. Pankhurst, Brian D. Smith, Michael J. Evans
  • Patent number: 7621511
    Abstract: A fragrance disperser includes a first source (25) of fragrance associated with a first flowpath (21) and a second source of fragrance (26) associated with a second flowpath (23). A fan (17) provides a flow of air along the first flowpath (21) or the second flowpath (23) to release the associated fragrance. A flow controller (38, 52) is movable by an actuator (34) to open and close the flowpaths (21, 23) so that only one fragrance is released at a time or a proportionate mixture of the two fragrances is released.
    Type: Grant
    Filed: April 27, 2004
    Date of Patent: November 24, 2009
    Assignee: Carbonate Limited
    Inventors: Paul Richard Hayes-Pankhurst, Keith Graham Lacy, Paul Simon Wells
  • Patent number: 7344123
    Abstract: A fragrance disperser (10) in one form includes a single fan (101) that passes air over a wicked single or double fragrance (102). A second form has the fan (11) reversible to provide two different airstreams (29a, 29b; 60a, 60b) that evaporate respective different fragrances one after the other. Where two fragrances are provided, the evaporation may be by respective electrical heaters. A fragrance source may be formed by two sheets (31, 40; 47, 48) joined together to form two chambers each receiving a respective wick (37a, 37b; 56a, 56b) and having respective exposed wick portions. The source may incorporate a source of electrical power (45). An alternative source (81a, 81b) has a reservoir (82a, 82b) for fragrance and a wick (87a, 87b) located in an air passage (83a, 83b) forming part of the source so that an air flow is guided through the passage past the wick to evaporate fragrance.
    Type: Grant
    Filed: October 4, 2002
    Date of Patent: March 18, 2008
    Assignee: Carbonate Limited
    Inventors: Richard P. H. Pankhurst, Brian D. Smith, Michael J. Evans