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1. WO2012097360 - ELECTROSTATIC DISCHARGE CONTROL AND ISOLATION SYSTEM FOR SPRAYING SYTEMS

Publication Number WO/2012/097360
Publication Date 19.07.2012
International Application No. PCT/US2012/021447
International Filing Date 16.01.2012
IPC
B05B 5/025 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
5Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
025Discharge apparatus, e.g. electrostatic spray guns
B05B 11/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
11Single-unit, i.e. unitary, hand-held apparatus in which flow of liquid or other fluent material is produced by the operator at the moment of use
CPC
B05B 5/1675
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
5Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
16Arrangements for supplying liquids or other fluent material
1608the liquid or other fluent material being electrically conductive
1675the supply means comprising a piston, e.g. a piston pump
B05B 5/1691
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
5Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
16Arrangements for supplying liquids or other fluent material
1691Apparatus to be carried on or by a person or with a container fixed to the discharge device
B05B 9/0403
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
9Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
03characterised by means for supplying liquid or other fluent material
04with pressurised or compressible container
0403with pumps for liquids or other fluent material
B05B 9/0861
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
9Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
03characterised by means for supplying liquid or other fluent material
04with pressurised or compressible container
08Apparatus to be carried on or by a person, e.g. of knapsack type
085with a liquid pump
0855the pump being motor-driven
0861the motor being electric
H05F 3/02
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
FSTATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
3Carrying-off electrostatic charges
02by means of earthing connections
Applicants
  • GRACO MINNESOTA INC. [US]/[US] (AllExceptUS)
  • KINNE, Robert W. [US]/[US] (UsOnly)
  • KUCZENSKI, Steven R. [US]/[US] (UsOnly)
  • HINES, Bradley H. [US]/[US] (UsOnly)
  • PEMBERTON, Dale C. [US]/[US] (UsOnly)
  • TAM, Jimmy W. [US]/[US] (UsOnly)
Inventors
  • KINNE, Robert W.
  • KUCZENSKI, Steven R.
  • HINES, Bradley H.
  • PEMBERTON, Dale C.
  • TAM, Jimmy W.
Agents
  • FAIRBAIRN, David R.
Priority Data
61/432,64914.01.2011US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) ELECTROSTATIC DISCHARGE CONTROL AND ISOLATION SYSTEM FOR SPRAYING SYTEMS
(FR) SYSTÈME DE COMMANDE ET D'ISOLATION DE DÉCHARGE ÉLECTROSTATIQUE POUR DES SYSTÈMES DE PULVÉRISATION
Abstract
(EN) A fluid dispensing device includes an electrostatic discharge protection system. Accumulation and discharge of electrostatic energy created by operation of the device is reduced or prevented by the electrostatic discharge protection system without an earth ground connection. The electrostatic discharge protection system may include a number of features, such as a static wick, nonconductive components that electrically isolate the spray tip of the device, nonconductive isolation barriers, nonconductive fluid reservoir and suction tube components, a nonconductive coating of a control valve component, and a nonconductive spring retainer of the control valve.
(FR) L'invention porte sur un dispositif de distribution de fluide qui comprend un système de protection contre les décharges électrostatiques. Une accumulation et une décharge d'énergie électrostatique créée par le fonctionnement du dispositif sont réduites ou empêchées par le système de protection contre les décharges électrostatiques, sans une connexion à la terre. Le système de protection contre les décharges électrostatiques peut comprendre plusieurs caractéristiques, telles qu'un déperditeur de potentiel, des composants non conducteurs qui isolent électriquement la pointe de pulvérisation du dispositif, des barrières d'isolation non conductrices, un réservoir de fluide non conducteur et des composants de tube d'aspiration, un revêtement non conducteur d'un composant de soupape de commande, et un élément de retenue de ressort non conducteur de la soupape de commande.
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