Flexible lance drive apparatus with autostroke function

    公开(公告)号:US11460257B2

    公开(公告)日:2022-10-04

    申请号:US16663149

    申请日:2019-10-24

    Applicant: STONEAGE, INC.

    Abstract: An apparatus for sensing an obstruction within a tube being cleaned and repetitively advancing and retracting a flexible high pressure fluid cleaning lance within the tube is disclosed. The apparatus monitors drive roller/belt position and actual hose position, compares the belt (expected travel) to hose position (travel) and generates a position difference, or mismatch. If the mismatch is above a predetermined level, the drive motor direction is reversed for a predetermined time interval, and forward operation restored after the predetermined time interval; and the sequence of repeating the reversing and restoring operations is continued until the position difference or mismatch no longer exceeds the predetermined difference threshold.

    FLEXIBLE LANCE DRIVE APPARATUS WITH AUTOSTROKE FUNCTION

    公开(公告)号:US20170102195A1

    公开(公告)日:2017-04-13

    申请号:US15270926

    申请日:2016-09-20

    Applicant: STONEAGE, INC.

    Inventor: Travis Watkins

    CPC classification number: F28G1/04 B08B9/043 F28G3/163 F28G15/003 F28G15/04

    Abstract: An apparatus for sensing an obstruction within a tube being cleaned and repetitively advancing and retracting a flexible high pressure fluid cleaning lance within the tube is disclosed. The method includes sensing a pneumatic supply pressure to a pneumatic lance drive motor at the motor during forward operation, sensing a pneumatic discharge pressure at the drive motor during forward operation, determining a difference between the pressures, comparing the difference to a predetermined difference threshold; reversing the drive motor direction for a predetermined time interval if the difference exceeds the threshold, and restoring forward operation after the predetermined time interval; and repeating the reversing and restoring operations until the difference no longer exceeds the predetermined difference threshold.

    FLEXIBLE LANCE DRIVE APPARATUS WITH AUTOSTROKE FUNCTION

    公开(公告)号:US20200056851A1

    公开(公告)日:2020-02-20

    申请号:US16663149

    申请日:2019-10-24

    Applicant: STONEAGE, INC.

    Abstract: An apparatus for sensing an obstruction within a tube being cleaned and repetitively advancing and retracting a flexible high pressure fluid cleaning lance within the tube is disclosed. The apparatus monitors drive roller/belt position and actual hose position, compares the belt (expected travel) to hose position (travel) and generates a position difference, or mismatch. If the mismatch is above a predetermined level, the drive motor direction is reversed for a predetermined time interval, and forward operation restored after the predetermined time interval; and the sequence of repeating the reversing and restoring operations is continued until the position difference or mismatch no longer exceeds the predetermined difference threshold.

    FLEXIBLE LANCE DRIVE APPARATUS WITH AUTOSTROKE FUNCTION

    公开(公告)号:US20180372432A1

    公开(公告)日:2018-12-27

    申请号:US16119586

    申请日:2018-08-31

    Applicant: STONEAGE, INC.

    Inventor: Travis Watkins

    Abstract: An apparatus for sensing an obstruction within a tube being cleaned and repetitively advancing and retracting a flexible high pressure fluid cleaning lance within the tube is disclosed. The method includes sensing a pneumatic supply pressure to a pneumatic lance drive motor at the motor during forward operation, sensing a pneumatic discharge pressure at the drive motor during forward operation, determining a difference between the pressures, comparing the difference to a predetermined difference threshold; reversing the drive motor direction for a predetermined time interval if the difference exceeds the threshold, and restoring forward operation after the predetermined time interval; and repeating the reversing and restoring operations until the difference no longer exceeds the predetermined difference threshold.

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