Claims
- 1. An electrostatic spraying device being configured and disposed to electrostatically charge and dispense a product from a supply to a point of dispersal, wherein said device comprises:
a reservoir configured to contain the supply of product; a nozzle to disperse the product, said nozzle being disposed at the point of dispersal; said nozzle having an exit orifice; a channel disposed between said reservoir and said nozzle, wherein said channel permits the electrostatic charging of the product upon said product moving within said channel; a positive displacement mechanism to move the product from said reservoir to said nozzle; a power source to supply an electrical charge; a high voltage power supply, said high voltage power supply being electrically connected to said power source; a high voltage contact; said high voltage contact being electrically connected to said high voltage power supply; and a high voltage electrode, said high voltage electrode being electrically connected to said high voltage power supply, a portion of said high voltage electrode being disposed between said reservoir and said nozzle, said high voltage electrode electrostatically charges the product within said channel at a charging location; wherein the distance between the charging location and said nozzle exit orifice is governed by the following relationship: VO/d<100,000 wherein: VO=an output voltage of said high voltage power supply d=linear distance between the charging location and said nozzle exit orifice.
- 2. The electrostatic spraying device of claim 1, wherein the relationship VO/d is preferably less than 70,000.
- 3. The electrostatic spraying device of claim 1, wherein the relationship VO/d is more preferably less than 50,000.
- 4. The electrostatic spraying device of claim 1, wherein “VO” preferably ranges from 10,000 volts to 20,000 volts.
- 5. The electrostatic spraying device of claim 1, wherein “d” preferably ranges from 0.1 in to 0.5 in.
- 6. An electrostatic spraying device being configured and disposed to electrostatically charge and dispense a product from a supply to a point of dispersal, wherein said device comprises:
a reservoir configured to contain the supply of product; a nozzle to disperse the product, said nozzle being disposed at the point of dispersal; said nozzle having an exit orifice; a channel disposed between said reservoir and said nozzle, wherein said channel permits the electrostatic charging of the product upon said product moving within said channel; a positive displacement mechanism to move the product from said reservoir to said nozzle; a power source to supply an electrical charge; a high voltage power supply, said high voltage power supply being electrically connected to said power source; a high voltage contact; said high voltage contact being electrically connected to said high voltage power supply; a high voltage electrode, said high voltage electrode being electrically connected to said high voltage power supply, a portion of said high voltage electrode being disposed between said reservoir and said nozzle, said high voltage electrode electrostatically charges the product within said channel at a charging location; and a moveable electrode cover; said electrode cover substantially conceals said high voltage contact when said disposable cartridge is removed from said device.
- 7. The electrostatic spraying device of claim 6, wherein said electrode cover being connected and movable within an insert sleeve.
- 8. The electrostatic spraying device of claim 7, wherein at least one bias spring is used to position said electrode cover in a closed position when said disposable cartridge is removed from said device.
- 9. An electrostatic spraying device being configured and disposed to electrostatically charge and dispense a product from a supply to a point of dispersal, wherein said device comprises:
a reservoir configured to contain the supply of product; a nozzle to disperse the product, said nozzle being disposed at the point of dispersal; said nozzle having an exit orifice; a channel disposed between said reservoir and said nozzle, wherein said channel permits the electrostatic charging of the product upon said product moving within said channel; a positive displacement mechanism to move the product from said reservoir to said nozzle; a power source to supply an electrical charge; a high voltage power supply, said high voltage power supply being electrically connected to said power source; a high voltage contact; said high voltage contact being electrically connected to said high voltage power supply; and a high voltage electrode, said high voltage electrode being electrically connected to said high voltage power supply, a portion of said high voltage electrode being disposed between said reservoir and said nozzle, said high voltage electrode electrostatically charges the product within said channel at a charging location, wherein said high voltage electrode recesses when said disposable cartridge is removed from said device and said high voltage electrode resurfaces when said disposable cartridge is inserted into said device.
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This application is a continuation-in-part of our earlier applications, U.S. Ser. No. 09/377,332, filed on Aug. 18, 1999 and U.S. Ser. No. 09/377,333, filed on Aug. 18, 1999.
Continuation in Parts (2)
|
Number |
Date |
Country |
Parent |
09377333 |
Aug 1999 |
US |
Child |
09759550 |
Jan 2001 |
US |
Parent |
09377332 |
Aug 1999 |
US |
Child |
09759550 |
Jan 2001 |
US |