NL7305174A - - Google Patents

Info

Publication number: NL7305174A
Authority: NL; Netherlands

Application number

NL7305174A

Other versions

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.)

1972-04-14

Filing date

1973-04-13

Publication date

1973-10-16

1972-04-14 Priority claimed from JP3755672A external-priority patent/JPS5644626B2/ja

1972-04-14 Priority claimed from JP3756272A external-priority patent/JPS48104430A/ja

1972-06-17 Priority claimed from JP6005572A external-priority patent/JPS4922037A/ja

1973-04-13 Application filed filed Critical

1973-10-16 Publication of NL7305174A publication Critical patent/NL7305174A/xx

1980-03-17 Publication of NL163403B publication Critical patent/NL163403B/en

1980-08-15 Application granted granted Critical

1980-08-15 Publication of NL163403C publication Critical patent/NL163403C/en

Links

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/003—Arrangements for eliminating unwanted electromagnetic effects, e.g. demagnetisation arrangements, shielding coils
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2229/00—Details of cathode ray tubes or electron beam tubes
- H01J2229/0007—Elimination of unwanted or stray electromagnetic effects
- H01J2229/0046—Preventing or cancelling fields within the enclosure
- H01J2229/0053—Demagnetisation

Landscapes

Physics & Mathematics (AREA)
Electromagnetism (AREA)
Video Image Reproduction Devices For Color Tv Systems (AREA)

NL7305174.A 1972-04-14 1973-04-13 COLOR TELEVISION DISPLAY TUBE WITH A DEMAGNETIZING DEVICE. NL163403C (en)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date
JP3755672A JPS5644626B2 (en)	1972-04-14	1972-04-14
JP3756272A JPS48104430A (en)	1972-04-14	1972-04-14
JP6005572A JPS4922037A (en)	1972-06-17	1972-06-17

Publications (3)

Publication Number	Publication Date
NL7305174A true NL7305174A (en)	1973-10-16
NL163403B NL163403B (en)	1980-03-17
NL163403C NL163403C (en)	1980-08-15

Family

ID=27289506

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL7305174.A NL163403C (en)	1972-04-14	1973-04-13	COLOR TELEVISION DISPLAY TUBE WITH A DEMAGNETIZING DEVICE.

Country Status (8)

Country	Link
US (1)	US3872347A (en)
CA (1)	CA977406A (en)
DE (1)	DE2319262B2 (en)
FR (1)	FR2180067B1 (en)
GB (1)	GB1425748A (en)
IT (1)	IT980156B (en)
NL (1)	NL163403C (en)
SE (1)	SE395814B (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL167289C (en) *	1973-09-13	1981-11-16	Philips Nv	COLOR TELEVISION DEVICE EQUIPPED WITH A COLOR TELEVISION IMAGE TUBE AND DEMAGNETIZING DEVICE.
SE441886B (en) *	1979-02-16	1985-11-11	Rca Corp	NEUTRALIZATION DEVICE FOR A PREVIOUS TELEVISION IMAGE
US4316119A (en) *	1979-02-16	1982-02-16	Rca Corporation	Tilted unitary degaussing coil arrangement
US4445072A (en) *	1982-09-29	1984-04-24	Motorola, Inc.	CRT Degaussing system
JPS60218693A (en) *	1984-04-13	1985-11-01	三菱電機株式会社	Display unit
IN167955B (en) *	1986-03-27	1991-01-12	Nokia Data Systems
DE3625383A1 (en) *	1986-07-26	1988-02-04	Grundig Emv	DE-MAGNETIZING DEVICE FOR A COLOR TV TUBE
FR2606574B1 (en) *	1986-11-07	1989-01-13	Videocolor	DEVICE FOR PROTECTING CATHODE RAY TUBES WITH A MASK AGAINST THE EARTH MAGNETIC FIELD
FR2639409B1 (en) *	1988-11-24	1990-12-28	Loire Electronique	DEVICE FOR FIXING A TELEVISION DEMAGNETIZING LOOP
IT1251351B (en) *	1990-06-25	1995-05-08	Videocolor Spa	APPARATUS FOR COMPENSATION OF MAGNETIC FIELDS
JPH0541176A (en) *	1991-08-07	1993-02-19	Sony Corp	Cathode-ray tube
EP0736220B1 (en) *	1994-10-21	2000-05-10	Koninklijke Philips Electronics N.V.	Colour display device comprising a colour display tube and a demagnetizing device
US5815361A (en) *	1995-04-03	1998-09-29	Samsung Electronics Co., Ltd.	Magnetic field shielding device in display
KR100265172B1 (en) *	1996-02-24	2000-09-15	윤종용	The degaussing coil fixing apparatus of monitor
KR19990022672A (en) *	1996-04-09	1999-03-25	엠. 제이. 엠. 반캄	Display device having display tube with external shield for the earth's magnetic field
US5959824A (en) *	1998-03-25	1999-09-28	Data Security, Inc.	Transient magnetic field degaussing system with auto calibration
US5969933A (en) *	1998-03-25	1999-10-19	Data Security, Inc.	Transient magnet field degaussing system
US6671007B1 (en) *	1999-12-30	2003-12-30	Thomson Licensing, S.A.	Method and apparatus for mounting a degaussing coil
US6731491B2 (en)	2001-06-15	2004-05-04	Data Security, Inc.	Bulk degausser with fixed arrays of magnet poles
US6686695B2 (en) *	2001-10-16	2004-02-03	Samsung Sdi Co., Ltd.	Cathode ray tube having degaussing coil for minimizing variations in landing of electron beam
US7164569B1 (en)	2004-06-30	2007-01-16	Data Security, Inc.	Mechanism for automated permanent magnet degaussing
US20060018075A1 (en)	2004-07-23	2006-01-26	Data Security, Inc.	Permanent magnet bulk degausser
US7701656B2 (en) *	2006-07-14	2010-04-20	Data Security, Inc.	Method and apparatus for permanent magnet erasure of magnetic storage media
US7715166B2 (en) *	2006-07-14	2010-05-11	Data Security, Inc.	Method and reciprocating apparatus for permanent magnet erasure of magnetic storage media
US20090284890A1 (en) *	2008-05-16	2009-11-19	Thiel Leroy D	Mechanism and Method for Permanent Magnet Degaussing
JP2014209521A (en) *	2013-04-16	2014-11-06	キヤノン株式会社	Stage device, drawing device and method for manufacturing article

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3317781A (en) *	1963-12-19	1967-05-02	Rca Corp	Television degaussing apparatus
US3614519A (en) *	1967-12-18	1971-10-19	Zenith Radio Corp	Cathode-ray tube magnetic shield

1973
- 1973-04-09 CA CA168,642A patent/CA977406A/en not_active Expired
- 1973-04-09 US US349637A patent/US3872347A/en not_active Expired - Lifetime
- 1973-04-10 GB GB1716573A patent/GB1425748A/en not_active Expired
- 1973-04-11 IT IT49358/73A patent/IT980156B/en active
- 1973-04-13 NL NL7305174.A patent/NL163403C/en not_active IP Right Cessation
- 1973-04-13 SE SE7305261A patent/SE395814B/en unknown
- 1973-04-13 FR FR7313397A patent/FR2180067B1/fr not_active Expired
- 1973-04-16 DE DE19732319262 patent/DE2319262B2/en not_active Ceased

Also Published As

Publication number	Publication date
NL163403C (en)	1980-08-15
GB1425748A (en)	1976-02-18
IT980156B (en)	1974-09-30
NL163403B (en)	1980-03-17
US3872347A (en)	1975-03-18
FR2180067B1 (en)	1976-09-03
DE2319262A1 (en)	1973-10-31
SE395814B (en)	1977-08-22
FR2180067A1 (en)	1973-11-23
CA977406A (en)	1975-11-04
DE2319262B2 (en)	1977-08-25

Legal Events

Date	Code	Title	Description
1986-12-16	V1	Lapsed because of non-payment of the annual fee

Publication	Publication Date	Title
FR2180067B1 (en)	1976-09-03
JPS4947530A (en)	1974-05-08
JPS4964200A (en)	1974-06-21
JPS4963232A (en)	1974-06-19
JPS557631B2 (en)	1980-02-27
FR2178351A5 (en)	1973-11-09
JPS4977139A (en)	1974-07-25
CS155442B1 (en)	1974-05-30
JPS4916098U (en)	1974-02-09
JPS4965203U (en)	1974-06-07
CS159005B1 (en)	1974-12-27
CS159006B1 (en)	1974-12-27
JPS4978881U (en)	1974-07-09
JPS4968451U (en)	1974-06-14
CS152726B1 (en)	1974-02-22
CS155796B1 (en)	1974-06-24
CS156584B1 (en)	1974-08-23
CS156973B1 (en)	1974-08-23
JPS4931229U (en)	1974-03-18
CS157425B1 (en)	1974-09-16
JPS4896068U (en)	1973-11-15
CH572460A5 (en)	1976-02-13
CH561532A5 (en)	1975-05-15
CH570781A5 (en)	1975-12-31
CH562699A5 (en)	1975-06-13