Electrostatic spray gun
AssigneeThe Morgan Crucible Company plc
InventorsRobert H. Greene, Alan C. Outhwaite
Life of this patent
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Abstract
An electrostatic spray gun comprising a housing (32) for receiving a replaceable collapsible container, a nozzle (39) from which fluid is to be sprayed, squeeze grip mechanism (36, 35, 34) for compressing the container to feed fluid to the nozzle and high voltage contacts (38a, 38b) for applying electrostatic potential to the fluid such that the fluid issues from the nozzle in the form of an electrically charged atomized spray, wherein the nozzle (39) forms or is fed by a resealable delivery valve having inner (11) and outer valve members (12) with fluid fed to a gap between them by the compression of the container, from which gap the fluid emerges to form the spray and the gap being closable, desirably with a wipping, fluid-cleaning action, by relative movement of the members.
Claims7
An electrostatic spray gun comprising:
- a housing;
- a handle adjacent said housing;
- a replaceable, collapsible container receivable in said housing;
- a nozzle in communication with said container for spraying fluid from said container;
- a delivery valve having inner and outer valve members, said valve members being movable relative to one another to form an opening for supplying fluid from the container or to form a seal for preventing escape of fluid from the container;
- a squeeze gripping means mounted on said housing for transmitting a compressive force to the container to deliver fluid to said nozzle;
- and
- a high voltage generator for applying electrostatic potential to the fluid such that the fluid emerges from said nozzle in a form of an electrically charged atomized spray.
Dependencies are inferred from the claim text.