Patents by Inventor Richard P. H. Pankhurst

Richard P. H. Pankhurst has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8632059
    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: October 21, 2009
    Date of Patent: January 21, 2014
    Assignee: CTR Consultoria Tecnica e Representacoes, Lda
    Inventors: Richard P. H. Pankhurst, Brian D. Smith, Michael J. Evans
  • Patent number: 8074970
    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: March 9, 2010
    Date of Patent: December 13, 2011
    Assignee: CTR Consultoria Técnica e Representações Lda.
    Inventors: Richard P. H. Pankhurst, Brian D. Smith, Michael J. Evans
  • Patent number: 7926792
    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: April 19, 2011
    Assignee: CTR Consultoria Tecnica e Representacoes, Lda.
    Inventors: Richard P. H. Pankhurst, Brian D. Smith, Michael J. Evans
  • Patent number: 7841587
    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: November 30, 2010
    Assignee: CTR Consultoria Tecnica e Representacoes, Lda.
    Inventors: Richard P. H. Pankhurst, Brian D. Smith, Michael J. Evans
  • Patent number: 7748687
    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: June 4, 2009
    Date of Patent: July 6, 2010
    Assignee: CTR Consultoria Tecnica e Representacoes, Lda
    Inventors: Richard P. H. Pankhurst, Brian D. Smith, Michael J. Evans
  • 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: 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