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    2.
    发明专利
    未知

    公开(公告)号：DE2517161A1

    公开(公告)日：1976-01-02

    申请号：DE2517161

    申请日：1975-04-18

    Applicant: IBM

    Inventor： ORLANDI JOHN VICTOR ,  POLEY NEIL MYRON ,  WILSON DONALD MILLER

    IPC: C03C27/06 ,  E21B17/042 ,  E21B19/20 ,  F16L55/00 ,  H01J9/26 ,  H01J61/92 ,  H01J61/30

    Abstract: During the construction of display gas panels front and back panels are connected together by means of a seal which forms a chamber for receiving a display gas. A hole is provided in the back plate which is outside the display viewing area and a glass tube is fitted into this hole and sealed to the assembly. The tube is used to first evacuate and then admit display gas into the chamber. An electric tip-off oven is used to collapse the tube stem to form a permanent seal. A cast protective heat sink and a reflective foil wafer are used to protect the gas panel and the tube-to-gas panel interface from damage by the oven.

    4.
    发明专利
    未知

    公开(公告)号：DE2243980A1

    公开(公告)日：1973-05-24

    申请号：DE2243980

    申请日：1972-09-07

    Applicant: IBM

    Inventor： POLEY NEIL MYRON ,  WHITAKER HOWARD LEWIS ,  WILSON DONALD MILLER

    IPC: H01J9/26 ,  H01J5/46 ,  H01J9/02 ,  H01J9/32 ,  H01J17/49 ,  H05K3/28 ,  H01J61/92

    Abstract: A water removable material ordinarily used as a brazing stop-off - i.e. to restrict the flow of a molten metal and thereby to prevent wetting of an underlying surface in a brazing or soldering process - has been found useful presently as a means to prevent oxidation of, or other damage to, terminal metallurgy of metallized glass components during protracted periods of baking, gas-filling and glass sealing processing incidental to fabrication of gas discharge display panel assemblies. The subject baking, gas-filling and sealing processing involves hours or even days of variant temperature treatment, which should be distinguished from seconds or at most minutes of brazing treatment. The protective function required of the water removable coating during this prolonged processing period is considered unique and eliminates certain application and removal process operations associated with the use of other protective media (e.g. sintered glass frit).

    7.
    发明专利
    未知

    公开(公告)号：DE2253835A1

    公开(公告)日：1973-07-05

    申请号：DE2253835

    申请日：1972-11-03

    Applicant: IBM

    Inventor： WILSON DONALD MILLER

    IPC: H01J9/26 ,  H01J9/385 ,  H01J9/395 ,  H01J9/40 ,  H01J17/16 ,  H01J61/92

    Abstract: Projecting exhaust tube constructions of earlier gas panels are eliminated by the disclosed process. In the present method an unfused low-softening-point glass sealant, arranged in a picture frame pattern, is sandwiched loosely between aligned flat glass plates, and the disjoint assembly is placed in a vacuum oven enclosure. The enclosure is successively evacuated, filled with the requisite gas mixture at predetermined pressure and heated above the softening point of the sealant to establish a sealed gas-filled envelope within the assembly. Previously the plates have been joined initially by heat fused sealant to form an envelope which is thereafter evacuated and filled with gas by connection to a thin glass tubular orifice projecting from one of the plates. Manipulation of this tube for evacuation and gas back-filling of the envelope, which is a difficult operation requiring considerable time, technique and skill, is eliminated by the present method.

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