GB1213291A - Discharging apparatus - Google Patents

Discharging apparatus

Info

Publication number
GB1213291A
GB1213291A GB2779767A GB2779767A GB1213291A GB 1213291 A GB1213291 A GB 1213291A GB 2779767 A GB2779767 A GB 2779767A GB 2779767 A GB2779767 A GB 2779767A GB 1213291 A GB1213291 A GB 1213291A
Authority
GB
United Kingdom
Prior art keywords
duct
outlet
point electrode
compressed
feb
Prior art date
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
GB2779767A
Inventor
Kenneth Howard Greenly
Gordon James Hoar
Michael Gordon Ellis Dean
John Latham
Christopher David Stow
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.)
English Electric Co Ltd
Original Assignee
English Electric Co Ltd
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.)
Filing date
Publication date
Application filed by English Electric Co Ltd filed Critical English Electric Co Ltd
Priority to DE19681639223 priority Critical patent/DE1639223A1/en
Publication of GB1213291A publication Critical patent/GB1213291A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
    • H05F3/00—Carrying-off electrostatic charges
    • H05F3/04—Carrying-off electrostatic charges by means of spark gaps or other discharge devices
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/02—Exposure apparatus for contact printing

Abstract

1,213,291. Discharging static electricity. ENGLISH ELECTRIC CO Ltd. 12 Feb., 1968 [13 Feb., 1967; 16 June, 1967], Nos. 6685/67 and 27797/67. Heading H1X. Apparatus for reducing or eliminating electrostatic charges from a chargeable surface 11 includes at least one ion generator having a point electrode 17 arranged for connection to a source of high voltage, and means for passing a stream of compressed gas past said point electrode in a direction perpendicular to or substantially perpendicular to the direction in which the point electrode extends. In the arrangement shown, compressed air admitted to a tapered duct 13 through an inlet 19 is ionized by a discharge between electrode 17 and an earthed plate 21 located in the narrowest part of the duct and passes from an outlet 22 over an aircraft windscreen 11. A water drainage outlet 20 is provided. A pair of ducts may be located on each side of the aircraft nose 12 with the electrodes 17 of a pair connected to sources of opposite polarity, or a polarity change-over switch may be provided. A polarity detector may be provided to control the voltage and/or compressed-air sources or to operate an indicator. The duct outlet 22 may be connected to a hollow wiper blade. The apparatus may be used to discharge static electricity from any metallic or insulating surface.
GB2779767A 1967-02-13 1967-02-13 Discharging apparatus Expired GB1213291A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19681639223 DE1639223A1 (en) 1967-02-13 1968-02-13 Discharge device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB668567 1967-02-13

Publications (1)

Publication Number Publication Date
GB1213291A true GB1213291A (en) 1970-11-25

Family

ID=9818934

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2779767A Expired GB1213291A (en) 1967-02-13 1967-02-13 Discharging apparatus

Country Status (2)

Country Link
FR (1) FR1572235A (en)
GB (1) GB1213291A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6239964B1 (en) * 1997-10-24 2001-05-29 Robert Bosch Gmbh Method of making a vehicle windshield surface hydrophilic

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6239964B1 (en) * 1997-10-24 2001-05-29 Robert Bosch Gmbh Method of making a vehicle windshield surface hydrophilic

Also Published As

Publication number Publication date
FR1572235A (en) 1969-06-27

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Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee