GB1304762A – – Google Patents
GB1304762A – – Google Patents
Info
Publication number
GB1304762A
GB1304762A
GB1636770A
GB1636770A
GB1304762A
GB 1304762 A
GB1304762 A
GB 1304762A
GB 1636770 A
GB1636770 A
GB 1636770A
GB 1636770 A
GB1636770 A
GB 1636770A
GB 1304762 A
GB1304762 A
GB 1304762A
Authority
GB
United Kingdom
Prior art keywords
strip
metal
capacitance
windings
transformer
Prior art date
1969-04-10
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
GB1636770A
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.)
1969-04-10
Filing date
1970-04-07
Publication date
1973-01-31
1970-04-07
Application filed
filed
Critical
1973-01-31
Publication of GB1304762A
publication
Critical
patent/GB1304762A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
B—PERFORMING OPERATIONS; TRANSPORTING
B26—HAND CUTTING TOOLS; CUTTING; SEVERING
B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
B26F1/26—Perforating by non-mechanical means, e.g. by fluid jet
B26F1/28—Perforating by non-mechanical means, e.g. by fluid jet by electrical discharges
B—PERFORMING OPERATIONS; TRANSPORTING
B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
B23H9/00—Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
B23H9/008—Surface roughening or texturing
Abstract
1304762 Seaming SOFTAL ELEKTRONIK GmbH 17 April 1970 [10 April 1969] 16367/70 Heading B5K [Also in Divisions C7 D1 H1 and H5] Corona discharge treatment of the surface of materials such as synthetic resin, metal, paper and textile fabrics, using a high-frequency generator 11 and a high-frequency power transformer, is improved by having a constant discharge by the primary and secondary windings 14, 16 of the transformer being linked closely to one another and being provided on a closed ferrite core 17. A strip F is passed between metal electrodes 30, 36, or 50, 52, one or both of which are rollers, and a coating 32 of dielectric material on one of the electrodes increases the total capacitance of the arrangement. One electrode 30, 52 is earthed. The “load” section of the apparatus includes ohmic resistance 20, the capacitance 22 of the strip F and the capacitance 24 of the roller coating 32. A compensating coil 54 on a ferrite core is provided between the transformer and the electrode 50, the inductance of the coil being varied either mechanically or electrically. As the total capacitance C varies, the inductance L of the resonant circuit including the windings 14, 16 and electrodes is altered to keep the product LC constant, the generator 10 having a fixed operational frequency. The inductances of both the windings 14, 16 are variable in a predetermined relationship. A large amount of ozone is liberated during the discharge treatment and is advantageous for preparation of the surface of the strip F for taking colour or adhesive. Where the strip is of metal, the treatment cleans the metal surface.
GB1636770A
1969-04-10
1970-04-07
Expired
GB1304762A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
DE1918145A
DE1918145C3
(en)
1969-04-10
1969-04-10
Device for the surface treatment of parts or webs made of plastic, metal, paper or textiles by means of high-frequency discharge
Publications (1)
Publication Number
Publication Date
GB1304762A
true
GB1304762A
(en)
1973-01-31
Family
ID=5730748
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB1636770A
Expired
GB1304762A
(en)
1969-04-10
1970-04-07
Country Status (7)
Country
Link
US
(1)
US3662169A
(en)
CA
(1)
CA920642A
(en)
CH
(1)
CH511534A
(en)
DE
(1)
DE1918145C3
(en)
GB
(1)
GB1304762A
(en)
NL
(1)
NL7004503A
(en)
SE
(1)
SE367962B
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4028551A
(en)
*
1975-10-17
1977-06-07
Champion International Corporation
Apparatus and method for corona discharge priming a dielectric web
Families Citing this family (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
JPS5535278B2
(en)
*
1974-03-18
1980-09-12
US6007784A
(en)
*
1997-07-11
1999-12-28
3Dt, Inc.
Electric discharge surface treating electrode and system
CN115862274B
(en)
*
2023-03-03
2023-05-16
安标国家矿用产品安全标志中心有限公司
Multi-band radio frequency electromagnetic energy explosion-proof ignition test device and method
Family Cites Families (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
NL277608A
(en)
*
1961-04-25
US3514393A
(en)
*
1969-04-15
1970-05-26
Axel Verner Eisby
Electrical apparatus for treating surfaces of work pieces to improve the adhesion of printing inks or adhesives thereto
1969
1969-04-10
DE
DE1918145A
patent/DE1918145C3/en
not_active
Expired
1970
1970-03-31
NL
NL7004503A
patent/NL7004503A/xx
unknown
1970-04-07
GB
GB1636770A
patent/GB1304762A/en
not_active
Expired
1970-04-09
SE
SE04866/70A
patent/SE367962B/xx
unknown
1970-04-10
CH
CH516170A
patent/CH511534A/en
not_active
IP Right Cessation
1970-04-10
US
US27252A
patent/US3662169A/en
not_active
Expired – Lifetime
1970-04-10
CA
CA079789A
patent/CA920642A/en
not_active
Expired
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4028551A
(en)
*
1975-10-17
1977-06-07
Champion International Corporation
Apparatus and method for corona discharge priming a dielectric web
Also Published As
Publication number
Publication date
CH511534A
(en)
1971-08-15
NL7004503A
(en)
1970-10-13
US3662169A
(en)
1972-05-09
DE1918145B2
(en)
1978-03-09
DE1918145A1
(en)
1970-10-15
DE1918145C3
(en)
1978-10-26
CA920642A
(en)
1973-02-06
SE367962B
(en)
1974-06-17
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Legal Events
Date
Code
Title
Description
1973-06-13
PS
Patent sealed [section 19, patents act 1949]
1981-11-11
PCNP
Patent ceased through non-payment of renewal fee
