Patents by Inventor Colin Gillett

Colin Gillett 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).

  • Apparatus for emitting a volatile chemical agent by heating and means for adjusting a spacing between a heater and the chemical agent to regulate the rate of vaporization
    Patent number: 5402517
    Abstract: An apparatus for emitting a chemical agent includes a housing defined by first and second co-axial housing sections received in end-to-end engagement, a heating element in the second housing section. The heat supplied to the chemical agent is varied so that the rate of vaporization can be controlled. The first housing section includes a vented base portion and a wall portion connected to the base portion so as to define a recess for receiving a volatile chemical agent. The chemical agent or a carrier therefor is secured within the recess. The second housing section includes a solid base portion and a wall portion connected to the base portion. An electric heater element is imbedded within the base portion of the second housing section so that it is electrically isolated from the base surface. The wall portions of each section are received in co-axial engagement so that the chemical agent is adjacent to the heated base.
    Type: Grant
    Filed: April 29, 1992
    Date of Patent: March 28, 1995
    Assignee: Reckitt & Colman Products Limited
    Inventors: Colin Gillett, Michael J. Hampshire, Geoffrey R. Hammond