FI801932A7 - Elektrostatisk skaerm - Google Patents

Elektrostatisk skaerm

Info

Publication number: FI801932A7
Authority: FI; Finland
Prior art keywords: electrostatic screen; electrostatic; screen
Prior art date: 1979-06-19

Application number

FI801932A

Other languages

English (en)

Other versions

FI72632C (fi

FI72632B (fi

Inventor

Valentino Francesco Vescovi

Arthur Wilkie Richards

Original Assignee

Sphere Invest

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.)

1979-06-19

Filing date

1980-06-16

Publication date

1980-12-20

1980-06-16 Application filed by Sphere Invest filed Critical Sphere Invest

1980-12-20 Publication of FI801932A7 publication Critical patent/FI801932A7/fi

1987-02-27 Application granted granted Critical

1987-02-27 Publication of FI72632B publication Critical patent/FI72632B/fi

1987-06-08 Publication of FI72632C publication Critical patent/FI72632C/fi

Classifications

- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/002—Casings with localised screening
- H05K9/0039—Galvanic coupling of ground layer on printed circuit board [PCB] to conductive casing

Landscapes

Engineering & Computer Science (AREA)
Microelectronics & Electronic Packaging (AREA)
Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Regulation Of General Use Transformers (AREA)
Geophysics And Detection Of Objects (AREA)
Details Of Measuring And Other Instruments (AREA)
Coils Or Transformers For Communication (AREA)

FI801932A 1979-06-19 1980-06-16 Elektrostatisk skaermad ledarenhet. FI72632C (fi)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
ZA793030		1979-06-19
ZA7903030		1979-06-19

Publications (3)

Publication Number	Publication Date
FI801932A7 true FI801932A7 (fi)	1980-12-20
FI72632B FI72632B (fi)	1987-02-27
FI72632C FI72632C (fi)	1987-06-08

Family

ID=25574119

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI801932A FI72632C (fi)	1979-06-19	1980-06-16	Elektrostatisk skaermad ledarenhet.

Country Status (9)

Country	Link
US (1)	US4451812A (fi)
JP (1)	JPS5612799A (fi)
AU (2)	AU535599B1 (fi)
CA (1)	CA1138084A (fi)
DE (1)	DE3021164A1 (fi)
FI (1)	FI72632C (fi)
FR (1)	FR2459537A1 (fi)
GB (1)	GB2057136B (fi)
SE (1)	SE8004255L (fi)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2151028B (en) *	1983-11-14	1987-03-04	Schlumberger Ltd	Shielded solenoid coil for well-logging
US4739272A (en) *	1984-05-31	1988-04-19	Schlumberger Technology Corporation	Apparatus for microinductive investigation of earth formations with improved electroquasistatic shielding
US4797614A (en) *	1984-11-02	1989-01-10	Sierracin Corporation	Apparatus and method for measuring conductance including a temperature controlled resonant tank circuit with shielding
DE3524242A1 (de) *	1985-07-06	1987-01-08	Philips Patentverwaltung	Kuehlanordnung fuer waermeabgebende elektrische bauteile
CH672383A5 (fi) *	1986-10-29	1989-11-15	Baumer Electric Ag
GB2232254A (en) *	1989-05-30	1990-12-05	Barkley & Dexter Lab Inc	Search coil assembly for metal detectors and method for making such an assembly
DE3920081A1 (de) *	1989-06-20	1991-01-03	Foerster Inst Dr Friedrich	Suchspulenanordnung
US5066937A (en) *	1990-06-24	1991-11-19	Barkley & Dexter Laboratories	Search coil assembly with laminate frame members and method for making same
GB9014496D0 (en) *	1990-06-29	1990-08-22	Safeline Ltd	Metal detectors
US5126714A (en) *	1990-12-20	1992-06-30	The United States Of America As Represented By The Secretary Of The Navy	Integrated circuit transformer
EP0834205B1 (en) *	1995-06-23	2002-01-23	BRITISH TELECOMMUNICATIONS public limited company	Laser drive circuit
US5781077A (en) *	1997-01-28	1998-07-14	Burr-Brown Corporation	Reducing transformer interwinding capacitance
FR2771233B1 (fr) *	1997-11-18	2000-01-28	Sgs Thomson Microelectronics	Bobine d'antenne a champ electrique reduit
AU2010207891B2 (en) *	2009-01-30	2011-08-11	Hbcc Pty Ltd	High frequency transformers
EP2439559B1 (en)	2010-10-07	2013-05-29	Mettler-Toledo Safeline Limited	Method for operating of a metal detection system and metal detection system
EP2439560B1 (en)	2010-10-07	2013-05-29	Mettler-Toledo Safeline Limited	Method for monitoring the operation of a metal detection system and metal detection system
JP5964308B2 (ja)	2010-10-07	2016-08-03	メトラー−トレド・セーフライン・リミテッド	金属検出システムを操作する方法、および金属検出システム
US9018935B2 (en)	2011-09-19	2015-04-28	Mettler-Toledo Safeline Limited	Method for operating a metal detection apparatus and apparatus
WO2014055732A2 (en) *	2012-10-04	2014-04-10	Whaley Brian A	Shieldings for metal detector heads and manufacturing methods thereof
US11519941B2 (en)	2020-07-27	2022-12-06	Analog Devices International Unlimited Company	Current sensing device having an integrated electrical shield
EP4387408A1 (en) *	2022-12-13	2024-06-19	Hitachi Energy Ltd	An electrostatic shielding element, an electrostatic shielding arrangement and a transformer arrangement comprising the electrostatic shielding arrangement

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE129022C (fi) *
US1942575A (en) *	1922-11-03	1934-01-09	Rca Corp	Electrostatic shielding material
US1651922A (en) *	1925-09-18	1927-12-06	Hughes Benjamin	Shield for use with electrical appliances
FR844426A (fr) *	1938-04-01	1939-07-25		Transformateur de couplage antiparasite et ses applications
US2234998A (en) *	1938-12-06	1941-03-18	Robert H Worrall	Electrical shield
US2786984A (en) *	1952-12-30	1957-03-26	Du Mont Allen B Lab Inc	Printed-circuit shield
DE1638564A1 (de) *	1967-04-07	1970-11-05	Siemens Ag	Vorrichtung zur Abschirmung von Streufeldern
FR2232046B1 (fi) *	1973-06-04	1978-01-06	Ducros Emile
FR2308030A1 (fr) *	1975-04-15	1976-11-12	Dunlop Sa	Joint en elastomere, permettant d'assurer la continuite electrique
JPS528423A (en) *	1975-07-11	1977-01-22	Hitachi Ltd	Magnetic shield device of static induction electric instrument

1980
- 1980-05-21 GB GB8016737A patent/GB2057136B/en not_active Expired
- 1980-05-27 AU AU58807/80A patent/AU535599B1/en not_active Ceased
- 1980-05-27 AU AU58807/80D patent/AU5880780A/en active Granted
- 1980-06-04 DE DE19803021164 patent/DE3021164A1/de not_active Withdrawn
- 1980-06-04 CA CA000353344A patent/CA1138084A/en not_active Expired
- 1980-06-06 SE SE8004255A patent/SE8004255L/ not_active Application Discontinuation
- 1980-06-16 FI FI801932A patent/FI72632C/fi not_active IP Right Cessation
- 1980-06-17 JP JP8099580A patent/JPS5612799A/ja active Pending
- 1980-06-18 FR FR8013530A patent/FR2459537A1/fr active Granted
1982
- 1982-04-27 US US06/372,371 patent/US4451812A/en not_active Expired - Fee Related

Also Published As

Publication number	Publication date
FI72632C (fi)	1987-06-08
FR2459537B1 (fi)	1985-03-15
FI72632B (fi)	1987-02-27
SE8004255L (sv)	1980-12-20
CA1138084A (en)	1982-12-21
AU535599B1 (en)	1984-03-29
FR2459537A1 (fr)	1981-01-09
GB2057136B (en)	1984-01-04
AU5880780A (en)	1981-01-08
DE3021164A1 (de)	1981-01-08
GB2057136A (en)	1981-03-25
JPS5612799A (en)	1981-02-07
US4451812A (en)	1984-05-29

Publication	Publication Date	Title
BE871786A (nl)	1979-05-07	Elektrostatisch kopieertoestel
NO150490C (no)	1984-10-24	Silduk
NL7804190A (nl)	1978-10-23	Elektrostatisch copieeren.
DK74388D0 (da)	1988-02-12	Billedomskifter
AT357868B (de)	1980-08-11	Kopiergeraet
DK540479A (da)	1980-08-13	Elektrofotografisk kopieringsmaskine
AT369865B (de)	1983-02-10	Faltenbalg
FI801932A7 (fi)	1980-12-20	Elektrostatisk skaerm
SE8006074L (sv)	1981-03-04	Bildskerm for katodstralror
BE867845A (nl)	1978-12-06	Elektrostatisch kopieertoestel
DK107880A (da)	1980-09-15	Elektrostatisk kopieringsapparat
IT1151096B (it)	1986-12-17	Innesto elettrostatico
IT7852129A0 (it)	1978-11-29	Copiatrice elettrostatica
BE874729A (fr)	1979-07-02	Crible
IT1122953B (it)	1986-04-30	Elettrofiltro
ES247777Y (es)	1980-11-01	Pantalla de proyeccion
SE7803688L (sv)	1978-10-01	Elektrostatisk kopieringsapparat
FI793473A7 (fi)	1981-05-07	Saekerhetsvimpel
IT1162406B (it)	1987-04-01	Schermo parasole
ES247306Y (es)	1980-10-01	Altavoz electrostatico
BR7901843A (pt)	1980-10-14	Peneira industrial
BR5900333U (pt)	1980-10-07	Crivo autovedante
SE397592B (sv)	1977-11-07	Elektrostatisk kopieringsmaskin
IT8035645V0 (it)	1980-03-19	Paravento nasso
ES245158Y (es)	1980-05-16	Expositor componible

Legal Events

Date	Code	Title	Description
2004-08-31	MM	Patent lapsed	Owner name: SPHERE INVESTMENTS LIMITED