William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 7407065 | Method of discharging an aerosolized fluid A method of discharging a plurality of aerosolized fluids from a plurality of aerosol cans to an ambient environment, including the steps of: fluidly coupling a first solenoid valve of an aerosol delivery system with a first aerosol can; fluidly coupling a second so... | 08/05/2008 |
| 7341238 | Device for locking out a pressurized storage container and method for the same A device and method for locking out an explosion suppressor that includes a discharge valve with a load end and a discharge end. The load end and the discharge end define a discharge path therethrough. The discharge valve includes a side opening transverse of the di... | 03/11/2008 |
| 7320418 | Controllable door handle sanitizer system and method Controlled sanitizing by dispensing a germicide, such as a disinfectant, antibacterial solution or cleansing agent at intervals. A system can include a housing sized to seat an aerosol can and a control circuit that operates to momentarily open a valve on the aeroso... | 01/22/2008 |
| 7299953 | Dispenser A dispenser, the dispenser having a dispenser head 2 and a container 1 containing spray material; the container having a containment portion and an attachment portion 5, the attachment portion having a threaded part 6 and a non-threaded p... | 11/27/2007 |
| 7195139 | Dispensing valve A valve assembly can automatically dispense aerosol content from an aerosol container at predetermined intervals without the use of electric power. A diaphragm at least partially defines an accumulation chamber that receives gas propellant from a portion of the can ... | 03/27/2007 |
| 7067142 | Packaged rodenticide A packaged animal poison includes a binder/rodenticide/bait mix molded into a cellulosic housing. The housing is covered with a removable cover. The housing defines an internal cavity in which the rodenticide is disposed, a lower wall extending laterally beyond the ... | 06/27/2006 |
| 6971560 | Friction resistant time delay actuator assembly for aerosol containers An actuator assembly is disclosed which can dispense chemicals, such as insect control ingredients, from an aerosol container. The actuator assembly is mountable to the aerosol container and includes a solid plug that, upon initial activation, will be caused by the ... | 12/06/2005 |
| 6926172 | Total release dispensing valve A valve assembly can automatically and essentially totally release aerosol content from an aerosol container in a single burst without the use of electric power or constant manual activation. A diaphragm at least partially defines an accumulation chamber that receiv... | 08/09/2005 |
| 6877636 | Method of discharging an aerosolized fluid A method of discharging an aerosolized fluid from an aerosol can to an ambient environment, which includes a solenoid valve of an aerosol release device fluidly coupled with a discharge valve on the aerosol can; a duration of a first release period of the aerosolize... | 04/12/2005 |
| 6837396 | Dispensing valve A valve assembly can automatically dispense aerosol content from an aerosol container at predetermined intervals without the use of electric power. A diaphragm at least partially defines an accumulation chamber that receives gas propellant from a portion of the can ... | 01/04/2005 |
| 6688492 | Dispensing valve A valve assembly can automatically dispense aerosol content from an aerosol container at predetermined intervals without the use of electric power. A diaphragm at least partially defines an accumulation chamber that receives gas propellant from a portion ... | 02/10/2004 |
| 6612464 | Aerosol dispensing valve A valve assembly can automatically dispense aerosol content from an aerosol container at predetermined intervals without the use of electric power. A diaphragm at least partially defines an accumulation chamber that receives aerosol content from the can d... | 09/02/2003 |
| 6588627 | Automatic intermittent aerosol dispensing valve A valve assembly can automatically dispense aerosol content from an aerosol container at predetermined intervals without the use of electric power. A diaphragm at least partially defines an accumulation chamber that receives aerosol content from the can d... | 07/08/2003 |
| 6533141 | Intermittent aerosol dispensing valve An valve assembly is provided that automatically dispenses aerosol content from a can at predetermined intervals. A diaphragm at least partially defines an accumulation chamber that receives aerosol content from the can during an accumulation phase. Once ... | 03/18/2003 |
| 6419122 | Magnetically operated apparatus for dispensing a chemical Apparatus (2), for dispensing a chemical, including an aerosol container (10), which contains the chemical, the aerosol container provided with magnetic material, a solenoid (12) which extends around the aerosol container (10), and a control switch (16) a... | 07/16/2002 |
| 6216925 | Automatic aerosol dispenser The present invention relates to aerosol dispensers and more particularly to automatic aerosol dispensers. In accordance with the present invention, there is provided a portable automatic aerosol dispenser device for intermittently releasing a dose of an ... | 04/17/2001 |
| 5924597 | Building fragrance distribution system and method A fragrance dispensing apparatus and method is disclosed for use in a multi-room building having an existing HVAC system ventilated by a forcing fan. The apparatus includes a plurality of fragrance containers, a plurality of solenoids, a plurality of prog... | 07/20/1999 |
| 5025962 | Automatic timed release spray dispenser A valve assembly for attachment to a pressurized aerosol can which automatically releases a measured amount of spray at preset time intervals utilizing the pressure of the contents of the aerosol as the sole energy source to drive the valve assembly of th... | 06/25/1991 |
| 4272019 | Fluid sprayer apparatus and method An apparatus and method for the controlled, intermittent, automatic dispensing of atomized fluid, such as an insecticide, into a use area, such as a barn, characterized in that the apparatus and its method of use are controlled to dispense fluid approved ... | 06/09/1981 |
| 3952916 | Automatic dispenser for periodically actuating an aerosol container The specific disclosure provides an automatic dispenser for periodically actuating a replaceable aerosol container to discharge a quantity of the contents of the container. The aerosol container includes a valve, means for biasing the valve to a closed po... | 04/27/1976 |