GB1268028A - Manufacture of colour television shadow masks - Google Patents

Manufacture of colour television shadow masks

Info

Publication number
GB1268028A
GB1268028A GB30783/70A GB3078370A GB1268028A GB 1268028 A GB1268028 A GB 1268028A GB 30783/70 A GB30783/70 A GB 30783/70A GB 3078370 A GB3078370 A GB 3078370A GB 1268028 A GB1268028 A GB 1268028A
Authority
GB
United Kingdom
Prior art keywords
dies
plug
shadow mask
foraminous portion
cam
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
GB30783/70A
Other languages
English (en)
Inventor
John G Valek
Myron C Kirchner
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.)
NORTHERN METAL PRODUCTS Inc
Original Assignee
NORTHERN METAL PRODUCTS Inc
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 NORTHERN METAL PRODUCTS Inc filed Critical NORTHERN METAL PRODUCTS Inc
Publication of GB1268028A publication Critical patent/GB1268028A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/14—Manufacture of electrodes or electrode systems of non-emitting electrodes
    • H01J9/142—Manufacture of electrodes or electrode systems of non-emitting electrodes of shadow-masks for colour television tubes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/496—Multiperforated metal article making

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)
GB30783/70A 1969-07-15 1970-06-25 Manufacture of colour television shadow masks Expired GB1268028A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US84180569A 1969-07-15 1969-07-15

Publications (1)

Publication Number Publication Date
GB1268028A true GB1268028A (en) 1972-03-22

Family

ID=25285723

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30783/70A Expired GB1268028A (en) 1969-07-15 1970-06-25 Manufacture of colour television shadow masks

Country Status (7)

Country Link
US (1) US3621699A (enrdf_load_stackoverflow)
JP (1) JPS4843075B1 (enrdf_load_stackoverflow)
BE (1) BE753300A (enrdf_load_stackoverflow)
DE (1) DE2034735A1 (enrdf_load_stackoverflow)
FR (1) FR2055079A5 (enrdf_load_stackoverflow)
GB (1) GB1268028A (enrdf_load_stackoverflow)
NL (1) NL7010470A (enrdf_load_stackoverflow)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3724255A (en) * 1971-04-29 1973-04-03 A Molino Duct forming apparatus
US3875787A (en) * 1973-08-13 1975-04-08 Mikhail Grigoriev Mescheryakov Device for shaping rectangular magnetic core from circular magnetic core
NL7508287A (nl) * 1975-07-11 1977-01-13 Philips Nv Werkwijze en inrichting voor het in vorm trek- ken van een schaduwmasker en schaduwmasker ge- trokken volgens deze werkwijze of met deze in- richting.
US4331017A (en) * 1980-12-11 1982-05-25 Joseph Bulso, Jr. High reduction process and apparatus
US4615205A (en) * 1984-06-18 1986-10-07 Rca Corporation Forming a shadow mask from a flat blank
DE3572081D1 (en) * 1984-09-28 1989-09-07 Philips Nv Method of drape drawing a shadow mask for a colour display tube and device for such a method
US4719787A (en) * 1986-08-29 1988-01-19 Rca Corporation Apparatus for forming a shadow mask
US5595086A (en) * 1994-08-02 1997-01-21 Aluminum Company Of America Apparatus for calibrating hollow nonsymmetrical multiplane extrusions and associated method
DE29612192U1 (de) * 1996-07-16 1997-10-09 KUKA Schweissanlagen GmbH, 86165 Augsburg Bördelvorrichtung
DE10224711A1 (de) * 2002-06-04 2004-01-08 Daimlerchrysler Ag Verfahren zum optimierenden Einstellen einer Umformgeometrie eines Umformwerkzeugs, entsprechendes Umformwerkzeug und geeignetes Versuchswerkzeug
CN117415209B (zh) * 2023-12-19 2024-03-08 福建祥鑫新能源汽车配件制造有限公司 一种电池托盘模具用挤压装置

Also Published As

Publication number Publication date
JPS4843075B1 (enrdf_load_stackoverflow) 1973-12-17
DE2034735A1 (de) 1971-02-04
NL7010470A (enrdf_load_stackoverflow) 1971-01-19
US3621699A (en) 1971-11-23
FR2055079A5 (enrdf_load_stackoverflow) 1971-05-07
BE753300A (enrdf_load_stackoverflow) 1970-12-16

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