GB1500992A – Electric supply apparatus and to high-voltage electrostatic apparatus
– Google Patents
GB1500992A – Electric supply apparatus and to high-voltage electrostatic apparatus
– Google Patents
Electric supply apparatus and to high-voltage electrostatic apparatus
Info
Publication number
GB1500992A
GB1500992A
GB162975A
GB162975A
GB1500992A
GB 1500992 A
GB1500992 A
GB 1500992A
GB 162975 A
GB162975 A
GB 162975A
GB 162975 A
GB162975 A
GB 162975A
GB 1500992 A
GB1500992 A
GB 1500992A
Authority
GB
United Kingdom
Prior art keywords
channel
jan
electric supply
supplied
passes
Prior art date
1974-01-14
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB162975A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ransburg Corp
Original Assignee
Ransburg Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1974-01-14
Filing date
1975-01-14
Publication date
1978-02-15
1974-01-14
Priority claimed from US00433265A
external-priority
patent/US3851618A/en
1974-01-14
Priority claimed from US433266A
external-priority
patent/US3875892A/en
1975-01-14
Application filed by Ransburg Corp
filed
Critical
Ransburg Corp
1978-02-15
Publication of GB1500992A
publication
Critical
patent/GB1500992A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
H—ELECTRICITY
H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
H02H5/12—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to undesired approach to, or touching of, live parts by living beings
B—PERFORMING OPERATIONS; TRANSPORTING
B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
B05B5/08—Plant for applying liquids or other fluent materials to objects
B05B5/10—Arrangements for supplying power, e.g. charging power
H—ELECTRICITY
H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
H02H3/44—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to the rate of change of electrical quantities
H02H3/445—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to the rate of change of electrical quantities of DC quantities
H—ELECTRICITY
H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
H02H7/003—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for electrostatic apparatus
Abstract
1500992 Detecting incipient breakdown conditions RANSBURG CORP 14 Jan 1975 [14 Jan 1974 (2)] 1629/75 Heading H2K In an electrostatic coating apparatus, movement of an earthed object 12 towards the h.v. electrode 11, which might lead to sparking, is detected by sensing low-frequency components only (e.g. 0-10 Hz) of the current flowing between the h.v. source and earth. The object 12 may be an article to be coated. In one embodiment the signal from a shunt 13 is supplied to both a first channel 71, which blocks D.C. but passes A.C., and a second channel 72 which passes both D.C. and A.C., phase-shifting the latter to match the phase shift in the first channel. The outputs from the two channels are subtracted (73) to give a signal proportional to the low-frequency components only, and this is supplied to a threshold circuit 75. Another embodiment is described but is identical to that of Specification 1,500,991.
GB162975A
1974-01-14
1975-01-14
Electric supply apparatus and to high-voltage electrostatic apparatus
Expired
GB1500992A
(en)
Applications Claiming Priority (2)
Application Number
Priority Date
Filing Date
Title
US00433265A
US3851618A
(en)
1974-01-14
1974-01-14
Electrostatic coating apparatus
US433266A
US3875892A
(en)
1974-01-14
1974-01-14
Apparatus for avoiding sparks in an electrostatic coating system
Publications (1)
Publication Number
Publication Date
GB1500992A
true
GB1500992A
(en)
1978-02-15
Family
ID=27029789
Family Applications (2)
Application Number
Title
Priority Date
Filing Date
GB162875A
Expired
GB1500991A
(en)
1974-01-14
1975-01-14
Electric supply apparatus and to electrostatic coating apparatus
GB162975A
Expired
GB1500992A
(en)
1974-01-14
1975-01-14
Electric supply apparatus and to high-voltage electrostatic apparatus
Family Applications Before (1)
Application Number
Title
Priority Date
Filing Date
GB162875A
Expired
GB1500991A
(en)
1974-01-14
1975-01-14
Electric supply apparatus and to electrostatic coating apparatus
Country Status (3)
Country
Link
DE
(1)
DE2501235C3
(en)
FR
(1)
FR2258030B1
(en)
GB
(2)
GB1500991A
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2211683A
(en)
*
1986-08-29
1989-07-05
Cezhan Chen
Automatic electric shock protector apparatus
Families Citing this family (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4075677A
(en)
*
1976-08-09
1978-02-21
Ransburg Corporation
Electrostatic coating system
DE3219236A1
(en)
*
1981-07-08
1983-01-27
Ernst Roederstein Spezialfabrik für Kondensatoren GmbH, 8300 Landshut
Method and control device for controlling the high-voltage device of an electrostatic coating apparatus
US4402030A
(en)
*
1982-02-19
1983-08-30
Champion Spark Plug Company
Electrostatic voltage control circuit
DE3709509A1
(en)
*
1987-03-23
1988-10-06
Behr Industrieanlagen
Monitoring system for an electrostatic coating plant
1975
1975-01-13
FR
FR7500840A
patent/FR2258030B1/fr
not_active
Expired
1975-01-14
GB
GB162875A
patent/GB1500991A/en
not_active
Expired
1975-01-14
GB
GB162975A
patent/GB1500992A/en
not_active
Expired
1975-01-14
DE
DE19752501235
patent/DE2501235C3/en
not_active
Expired
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2211683A
(en)
*
1986-08-29
1989-07-05
Cezhan Chen
Automatic electric shock protector apparatus
GB2211683B
(en)
*
1986-08-29
1992-02-26
Cezhan Chen
Full automatic electric shock protector apparatus
Also Published As
Publication number
Publication date
DE2501235C3
(en)
1980-09-11
FR2258030A1
(en)
1975-08-08
FR2258030B1
(en)
1978-12-08
DE2501235B2
(en)
1980-01-17
DE2501235A1
(en)
1975-07-17
GB1500991A
(en)
1978-02-15
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Legal Events
Date
Code
Title
Description
1978-06-28
PS
Patent sealed
1991-09-11
PCNP
Patent ceased through non-payment of renewal fee
