Glass tube-forming machine
    4.
    发明授权
    Glass tube-forming machine 失效
    玻璃管成型机

    公开(公告)号:US3628939A

    公开(公告)日:1971-12-21

    申请号:US3628939D

    申请日:1969-09-04

    Applicant: DURO TEST CORP

    Inventor: TRUTNER DONALD G

    CPC classification number: C03B23/051 C03B35/26 Y02P40/57

    Abstract: An improved machine for forming one or more helical grooves in the walls of glass tubes in which the glass tubes are automatically transferred from one processing area of the machine to the adjacent processing area. Lifters for engaging the open ends of the glass tubes are attached to a movable carriage assembly which provides for the transfer of the tubes from one area of the machine to an adjacent area during its forward travel and provides for the grooving of the tubes during its reverse travel. A positioning mechanism insures that the lifters are properly aligned over the open ends of the tubes prior to engagement. An arrangement is also disclosed for transferring two tubes in tandem to increase the machine''s processing speed.

    8.
    发明专利
    未知

    公开(公告)号:DE3040781A1

    公开(公告)日:1982-06-09

    申请号:DE3040781

    申请日:1980-10-29

    Applicant: DURO TEST CORP

    Abstract: An incandescent electric lamp having an envelope with a portion through which a pair of lead-in studs are brought out, the filament leads being connected to the studs. The lamp is sealed off in the area where the studs are located and an adaptor is provided to make contact with the portions of the studs extending through the envelope so that the lamp can be mounted in a socket.

    9.
    发明专利
    未知

    公开(公告)号:FR2493600A1

    公开(公告)日:1982-05-07

    申请号:FR8023321

    申请日:1980-10-31

    Applicant: DURO TEST CORP

    Abstract: An incandescent electric lamp having an envelope with a portion through which a pair of lead-in studs are brought out, the filament leads being connected to the studs. The lamp is sealed off in the area where the studs are located and an adaptor is provided to make contact with the portions of the studs extending through the envelope so that the lamp can be mounted in a socket.

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