1.
    发明专利
    未知

    公开(公告)号:DK40590D0

    公开(公告)日:1990-02-15

    申请号:DK40590

    申请日:1990-02-15

    Applicant: ELPATRONIC AG

    Abstract: A method and an apparatus for ensuring the dimensional accuracy of a frusto-pyramidal can body (10). During the production of the body (10) this is partially heated by means of inductors in the vicinity of its base face in the region of its broader side faces (10a,10b), before the step in which it is formed into the pyramidal frustum. In this manner, a uniform reduction in the thickness of the sheet metal is achieved in the region of the base face of the pyramidal frustum during the widening operation.

    2.
    发明专利
    未知

    公开(公告)号:DE3911390A1

    公开(公告)日:1990-08-23

    申请号:DE3911390

    申请日:1989-04-07

    Applicant: ELPATRONIC AG

    Abstract: A method and an apparatus for ensuring the dimensional accuracy of a frusto-pyramidal can body (10). During the production of the body (10) this is partially heated by means of inductors in the vicinity of its base face in the region of its broader side faces (10a,10b), before the step in which it is formed into the pyramidal frustum. In this manner, a uniform reduction in the thickness of the sheet metal is achieved in the region of the base face of the pyramidal frustum during the widening operation.

    3.
    发明专利
    未知

    公开(公告)号:DK168984B1

    公开(公告)日:1994-07-25

    申请号:DK40590

    申请日:1990-02-15

    Applicant: ELPATRONIC AG

    Abstract: A method and an apparatus for ensuring the dimensional accuracy of a frusto-pyramidal can body (10). During the production of the body (10) this is partially heated by means of inductors in the vicinity of its base face in the region of its broader side faces (10a,10b), before the step in which it is formed into the pyramidal frustum. In this manner, a uniform reduction in the thickness of the sheet metal is achieved in the region of the base face of the pyramidal frustum during the widening operation.

    4.
    发明专利
    未知

    公开(公告)号:BR9000701A

    公开(公告)日:1991-01-22

    申请号:BR9000701

    申请日:1990-02-15

    Applicant: ELPATRONIC AG

    Abstract: A method and an apparatus for ensuring the dimensional accuracy of a frusto-pyramidal can body (10). During the production of the body (10) this is partially heated by means of inductors in the vicinity of its base face in the region of its broader side faces (10a,10b), before the step in which it is formed into the pyramidal frustum. In this manner, a uniform reduction in the thickness of the sheet metal is achieved in the region of the base face of the pyramidal frustum during the widening operation.

    5.
    发明专利
    未知

    公开(公告)号:DK40590A

    公开(公告)日:1990-08-17

    申请号:DK40590

    申请日:1990-02-15

    Applicant: ELPATRONIC AG

    Abstract: A method and an apparatus for ensuring the dimensional accuracy of a frusto-pyramidal can body (10). During the production of the body (10) this is partially heated by means of inductors in the vicinity of its base face in the region of its broader side faces (10a,10b), before the step in which it is formed into the pyramidal frustum. In this manner, a uniform reduction in the thickness of the sheet metal is achieved in the region of the base face of the pyramidal frustum during the widening operation.

    6.
    发明专利
    未知

    公开(公告)号:DE59002677D1

    公开(公告)日:1993-10-21

    申请号:DE59002677

    申请日:1990-01-22

    Applicant: ELPATRONIC AG

    Abstract: A method and an apparatus for ensuring the dimensional accuracy of a frusto-pyramidal can body (10). During the production of the body (10) this is partially heated by means of inductors in the vicinity of its base face in the region of its broader side faces (10a,10b), before the step in which it is formed into the pyramidal frustum. In this manner, a uniform reduction in the thickness of the sheet metal is achieved in the region of the base face of the pyramidal frustum during the widening operation.

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