| Patent application number | Description | Published |
|---|
| 20080257075 | METHODS FOR TESTING INSECT CONTROL PRODUCTS - Disclosed are methods of determining how effective a product that dispenses an insect repellent or insecticide is in controlling flying insects such as mosquitoes, with no or reduced need for human test subjects. An insect trap or other automated monitoring device is positioned in a test environment and operated in a manner so as to mimic some human attribute (e.g. by dispensing carbon dioxide). Trap/monitoring results in the presence and absence of the operating product are obtained in order to judge relative effectiveness of the active. Further, the real time evaluation of insect populations permits evaluation of time needed to achieve base effectiveness and length of time that effectiveness can be sustained. | 10-23-2008 |
| 20080314893 | HEATING DEVICE WITH ADJUSTING ELECTRICAL CONTACT - An electrical heating device is disclosed that is suitable to vaporize air treatment chemicals from an impregnated substrate. The device is provided with a PCT heater held between electrical contacts and a spring that is compressed between the housing of the heating device and one of the electrical contacts to maintain pressure thereon in spite of thermal expansion of the housing, ensuring good electrical contact between the PCT heater and the electrical contacts. | 12-25-2008 |
| 20080318176 | Fuel element for melting plate candle assembly - A fuel charge for use with a melting plate candle assembly includes an outer shell of fuel material surrounding an inner core of fuel material having different properties than the fuel material of the outer shell. The outer shell is substantially solid and may contain fuel additive that slows capillary flow of liquid fuel to the flame through the wick. The inner core may include liquid fuel, discrete solid fuel particles, or a solid fuel mass. The fuel additive is disposed in the fuel charge so as to slow migration of liquefied fuel to a flame on a wick only after a substantial portion of the fuel charge has been liquefied by heat from the flame. | 12-25-2008 |
| 20090196586 | Heater Contact Assembly for Volatile Liquid Dispenser - Disclosed herein are heaters for dispensing volatile air treatment chemicals. Semi-circular electrical contacts are provided in a ring-type heater, and alignment and anchoring features are provided to facilitate use of a spring to accommodate thermal expansion. | 08-06-2009 |
| 20090249533 | Toilet Bowl Cleaning and/or Deodorizing Device - A device for spraying an inner surface of a toilet bowl with a cleaning and/or deodorizing chemical is disclosed. The device includes a container for the chemical, a spray nozzle through which the chemical can be sprayed laterally around a perimeter of the nozzle, a conduit in fluid communication with the container and the spray nozzle, fluid delivery means for delivering chemical from the container through the conduit and to the spray nozzle, and means for attaching the spray nozzle near a rim of the toilet bowl. The spray nozzle of the automatic or manual toilet bowl cleaning device can operate such that the chemical is applied to the entire circumference of the inner surface of the toilet bowl whereby the entire toilet bowl is cleaned around the inner circumference of the toilet bowl. | 10-08-2009 |
| 20090311148 | Heated Volatile Dispensing Device With Use-Up Indicator - Heated volatile dispensers are disclosed that are provided with automated use-up indicators. The indicators are associated with a porous substrate. A migrateable dye is covered by meltable material adjacent the substrate. Heating of a substrate such as a slab impregnated with an insect repellent both causes the insect repellent to dispense and melts the covering. The dye then migrates to a visible surface of the substrate to indicate a degree of use. The extent of migration, and the patterns formed on the visible surface by the migrating dye, indicate the extent to which the volatile air treatment chemical has been dispensed. | 12-17-2009 |
| 20100206960 | Volatile Liquids Having Predetermined Evaporation Profiles - Dispensers and refills for volatile liquids, such as fragrances, are disclosed. Dispensers and refills in combination with dispensers according to the present invention may comprise a volatile liquid and a housing. In certain embodiments, the volatile liquid of the present invention has a predetermined evaporation rate, measured and calculated by the method described herein. In other embodiments, the volatile liquid exhibits a predefined relative evaporation rate. In addition to the housing, the present invention includes optional components, such as a motorized fan and/or a wick, to facilitate release of the volatile liquid into the atmosphere. | 08-19-2010 |
| 20110220731 | Air Treatment Device With Controlled Pore Size Substrate - Disclosed are substrates suited for dispensing air treatment chemicals upon being heated. Granular particles, preferably sand with a phenolic binder, are adhered together to form a substrate body having a network of pores. A volatile air treatment chemical is disposed in the pores. The particle size and pores are such that the smaller particles of the substrate are grouped at one end, preferably an end adjacent to a projecting nose. This structure tends to wick the volatile air treatment chemical towards the nose, and heating that area can lead to efficient, and rechargeable, dispensing. Methods for using such substrates, and methods for forming such substrates, are disclosed. | 09-15-2011 |
