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.

    Auto-indexing lance positioner apparatus and system

    公开(公告)号:US11441856B2

    公开(公告)日:2022-09-13

    申请号:US16662762

    申请日:2019-10-24

    Applicant: STONEAGE, INC.

    Abstract: A system and an apparatus for positioning a plurality of flexible cleaning lances includes a frame removably fastened parallel a tube sheet of a heat exchanger. The apparatus includes a smart lance tractor drive for advancing and retracting one or more lance hoses through one or more lance guide tubes into tubes penetrating through the heat exchanger tube sheet, a controller, one or more AC induction sensors on the tubes operable to sense holes in the tube sheet, and a tumble box connected to the controller operable to generate electrical power to the AC induction sensor from an air pressure source, supply electrical power to the controller and distribute pneumatic power to pneumatic motors for positioning the tractor drive on the positioner frame. The tractor drive includes sensors for detection of mismatch between expected and actual lance positions and automated drive reversal operation to remove blockages within tubes being cleaned.

    Fluid lance stop position sensor detection method and system

    公开(公告)号:US12123712B2

    公开(公告)日:2024-10-22

    申请号:US18378012

    申请日:2023-10-09

    Applicant: STONEAGE, INC.

    Inventor: Daniel Szabo

    CPC classification number: G01B7/003 H04L5/0005 B08B3/02 B08B2203/0247

    Abstract: A system for distinguishing target metal objects from each other in close proximity to each other. The method includes transmitting a first sinusoid signal via a first transmit coil to a first receive coil in close proximity to the first transmit coil; transmitting a second sinusoidal signal at a second frequency and amplitude different from the first frequency and amplitude to a second receive coil arranged in close proximity to the second transmit coil and in close proximity to the first receive coil such that received signals in the first and second receive coils include first and second frequency signals from the other of the first and second transmit coils. The received signals are separated via frequency domain multiplexing. The signals are compared to detect a presence of the target having a signal magnitude different from the first received signal and the received second signal and a known reference point.

    Fluid lance stop position sensor detection method and system

    公开(公告)号:US11781852B2

    公开(公告)日:2023-10-10

    申请号:US17102773

    申请日:2020-11-24

    Applicant: STONEAGE, INC.

    Inventor: Daniel Szabo

    CPC classification number: G01B7/003 H04L5/0005 B08B3/02 B08B2203/0247

    Abstract: A system for distinguishing target metal objects from each other in close proximity to each other. The method includes transmitting a first sinusoid signal via a first transmit coil to a first receive coil in close proximity to the first transmit coil; transmitting a second sinusoidal signal at a second frequency and amplitude different from the first frequency and amplitude to a second receive coil arranged in close proximity to the second transmit coil and in close proximity to the first receive coil such that received signals in the first and second receive coils include first and second frequency signals from the other of the first and second transmit coils. The received signals are separated via frequency domain multiplexing. The signals are compared to detect a presence of the target having a signal magnitude different from the first received signal and the received second signal and a known reference point.

    FLUID LANCE STOP POSITION SENSOR DETECTION METHOD AND SYSTEM

    公开(公告)号:US20220163311A1

    公开(公告)日:2022-05-26

    申请号:US17102773

    申请日:2020-11-24

    Applicant: STONEAGE, INC.

    Inventor: Daniel Szabo

    Abstract: A system for distinguishing target metal objects from each other in close proximity to each other. The method includes transmitting a first sinusoid signal via a first transmit coil to a first receive coil in close proximity to the first transmit coil; transmitting a second sinusoidal signal at a second frequency and amplitude different from the first frequency and amplitude to a second receive coil arranged in close proximity to the second transmit coil and in close proximity to the first receive coil such that received signals in the first and second receive coils include first and second frequency signals from the other of the first and second transmit coils. The received signals are separated via frequency domain multiplexing. The signals are compared to detect a presence of the target having a signal magnitude different from the first received signal and the received second signal and a known reference point.

    SELF REGULATING FLUID BEARING HIGH PRESSURE ROTARY RETARDER NOZZLE

    公开(公告)号:US20220062925A1

    公开(公告)日:2022-03-03

    申请号:US17411327

    申请日:2021-08-25

    Applicant: STONEAGE, INC.

    Abstract: A rotary nozzle having a rotating shaft operating within a cylindrical housing is balanced by allowing passage of a small amount of pressurized fluid to be bled to an area between the outside of the opposite end of the shaft and the inside of the housing where the fluid force acts axially in an opposing direction upon the shaft to balance the axial inlet force exerted by the pressurized fluid. The balance of axial forces is self-regulating by controlling escape of the fluid through a tapered or frusto-conical region between the shaft and housing. A plurality of centrifugal weight segments around the inlet end of the shaft are thrust outwardly against the cylindrical housing to retard rotational speed while pressurized fluid around the centrifugal weight segments provides a fluid bearing between the weights and the housing.

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