NL7415706A - METHOD OF MANUFACTURING A SHADOW MASK AND A SHADOW MASK MANUFACTURED ACCORDING TO THIS METHOD. - Google Patents

METHOD OF MANUFACTURING A SHADOW MASK AND A SHADOW MASK MANUFACTURED ACCORDING TO THIS METHOD.

Info

Publication number: NL7415706A
Authority: NL; Netherlands
Prior art keywords: shadow mask; manufacturing; manufactured according; mask manufactured; shadow
Prior art date: 1974-09-20

Application number

NL7415706A

Other languages

Dutch (nl)

Original Assignee

Buckbee Mears Co

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.)

1974-09-20

Filing date

1974-12-02

Publication date

1976-03-23

1974-12-02 Application filed by Buckbee Mears Co filed Critical Buckbee Mears Co

1976-03-23 Publication of NL7415706A publication Critical patent/NL7415706A/en

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
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/06—Screens for shielding; Masks interposed in the electron stream
- H01J29/07—Shadow masks for colour television tubes

NL7415706A 1974-09-20 1974-12-02 METHOD OF MANUFACTURING A SHADOW MASK AND A SHADOW MASK MANUFACTURED ACCORDING TO THIS METHOD. NL7415706A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US507689A US3916243A (en)	1974-09-20	1974-09-20	Channeled shadow mask

Publications (1)

Publication Number	Publication Date
NL7415706A true NL7415706A (en)	1976-03-23

Family

ID=24019722

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL7415706A NL7415706A (en)	1974-09-20	1974-12-02	METHOD OF MANUFACTURING A SHADOW MASK AND A SHADOW MASK MANUFACTURED ACCORDING TO THIS METHOD.

Country Status (9)

Country	Link
US (1)	US3916243A (en)
JP (1)	JPS5143072A (en)
BE (1)	BE823071A (en)
CA (1)	CA1024580A (en)
DE (1)	DE2459004A1 (en)
FR (1)	FR2285709A1 (en)
GB (1)	GB1481717A (en)
IT (1)	IT1031795B (en)
NL (1)	NL7415706A (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4048536A (en) *	1976-03-18	1977-09-13	Buckbee-Mears Company	Shadow mask with plurality of recessed regions extending across mask in two directions
US4131822A (en) *	1977-05-20	1978-12-26	Rca Corporation	Cathode ray tube with stress-relieved slot-aperture shadow mask
US4293792A (en) *	1979-12-18	1981-10-06	Rca Corporation	Color picture tube having improved slit type shadow mask
US4300069A (en) *	1979-12-18	1981-11-10	Rca Corporation	Color picture tube having improved slit type shadow mask and method of making same
JPS577041A (en) *	1980-05-12	1982-01-14	Buckbee Mears Co	Structure with visual sense opening line and method of manufacturing same
CA1175876A (en) *	1980-05-12	1984-10-09	Roland Thoms	Television picture tubes and hole technology
US4389592A (en) *	1980-05-12	1983-06-21	Buckbee-Mears Company	Color picture tube and aperture mask therefor
US4727280A (en) *	1984-03-30	1988-02-23	Mitsubishi Denki Kabushiki Kaisha	Shadow mask for color cathode ray tube shaped to minimize doming
JPS60240028A (en) *	1984-05-10	1985-11-28	Mitsubishi Electric Corp	Shadow mask
US4632726A (en) *	1984-07-13	1986-12-30	Bmc Industries, Inc.	Multi-graded aperture mask method
FR2576452A1 (en) *	1985-01-22	1986-07-25	Rca Corp	Colour picture tube with improved shadowmask
JPS622434A (en) *	1985-06-27	1987-01-08	Sony Corp	Method for producing color selection device for cathode-ray tube
US5382870A (en) *	1992-09-21	1995-01-17	Bmc Industries, Inc.	Stackable aperture masks
EP0841679B1 (en) *	1996-11-11	2003-02-12	Kabushiki Kaisha Toshiba	Shadow mask and method of manufacturing the same
KR20020018278A (en) *	2000-09-01	2002-03-08	김순택	Shadow-mask for color picture tube and method of manufacturing the same and exposure mask for making the shadow-mask

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3753663A (en) *	1969-08-15	1973-08-21	Zenith Radio Corp	Blank for shadow mask for color television picture tube
US3653900A (en) *	1969-08-15	1972-04-04	Zenith Radio Corp	Selective etching process for changing shadow-mask aperture size
US3923566A (en) *	1972-06-21	1975-12-02	Rca Corp	Method of fabricating an apertured mask for a cathode-ray tube

1974
- 1974-09-20 US US507689A patent/US3916243A/en not_active Expired - Lifetime
- 1974-11-26 CA CA214,619A patent/CA1024580A/en not_active Expired
- 1974-12-02 NL NL7415706A patent/NL7415706A/en not_active Application Discontinuation
- 1974-12-06 BE BE151265A patent/BE823071A/en unknown
- 1974-12-09 GB GB53206/74A patent/GB1481717A/en not_active Expired
- 1974-12-13 DE DE19742459004 patent/DE2459004A1/en not_active Withdrawn
1975
- 1975-01-15 FR FR7501166A patent/FR2285709A1/en active Granted
- 1975-02-17 IT IT20340/75A patent/IT1031795B/en active
- 1975-03-14 JP JP50031014A patent/JPS5143072A/en active Pending

Also Published As

Publication number	Publication date
FR2285709B1 (en)	1979-09-28
JPS5143072A (en)	1976-04-13
GB1481717A (en)	1977-08-03
DE2459004A1 (en)	1976-04-01
IT1031795B (en)	1979-05-10
BE823071A (en)	1975-04-01
US3916243A (en)	1975-10-28
FR2285709A1 (en)	1976-04-16
CA1024580A (en)	1978-01-17

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Legal Events

Date	Code	Title	Description
1981-08-03	BV	The patent application has lapsed