Abstract: A circulating downhole tool utilising a variable fluid pressure regulated cycle valve device that can be attached to the borehole assembly BHA of a coiled tubing and used down an offshore or onshore wellbore is disclosed. The circulating downhole tool utilising a variable fluid pressure regulated cycle valve device can be remotely operated by an operator on the surface as many times as required in either the through-flow, intermediary or circulatory modes-of-operation, by simply varying the drilling fluid flow rate and pressure being supplied from the pump located on the surface and interconnected to the coiled tubing and the BHA that will include the circulating downhole tool utilising a variable fluid pressure regulated cycle valve device.

Abstract: A circulating downhole tool utilising a variable fluid pressure regulated cycle valve device that can be attached to the borehole assembly BHA of a coiled tubing and used down an offshore or onshore wellbore is disclosed. The circulating downhole tool utilising a variable fluid pressure regulated cycle valve device can be remotely operated by an operator on the surface as many times as required in either the through-flow, intermediary or circulatory modes-of-operation, by simply varying the drilling fluid flow rate and pressure being supplied from the pump located on the surface and interconnected to the coiled tubing and the BHA that will include the circulating downhole tool utilising a variable fluid pressure regulated cycle valve device.

Abstract: A log measurement system for measuring individual logs, each log comprising a log-end face with an applied reference marker of known characteristics. The system includes an image capture system operable or configured to capture a digital image or images of the log-end face of a log to generate a log-end image capturing the log-end face and reference marker. The system also includes an image processing system that is operable or configured to process the captured log-end image to detect or identify the log-end boundary of the log and generate measurement data associated with the log-end boundary in real-world measurement units based on the known characteristics of the reference marker.

Abstract: A surface treating appliance includes a surface treating head rotatably connected to a yoke, and a main body pivotably moveable relative to the yoke about a pivot axis between an upright position and a reclined position. A retaining mechanism is provided for inhibiting rotation of the head relative to the yoke when the main body is in the upright position. The retaining mechanism includes a locking member which is moveable between a stowed position and a deployed position for inhibiting rotation of the head relative to the yoke, and an actuator for urging the locking member towards its deployed position. To provide a compact appliance, the actuator moves with the main body about the pivot axis to urge the locking member towards its deployed position as the main body is moved to the upright position.

Abstract: A cleaner head for a cleaning appliance includes a housing, a moveable agitator located within the housing, and a detachable unit extending about the agitator. The detachable unit includes a sole plate having a suction opening through which dirt-bearing air enters the cleaner head, a chassis detachably connected to the housing, and a flexible annular seal for allowing relative movement between the housing and the sole plate. One end of the flexible annular seal is connected to the chassis and the other end of the flexible annular seal is connected to the sole plate.

Abstract: A surface treating appliance includes a surface treating head rotatably connected to a yoke, and a main body including a casing housing a fan unit for creating a fluid flow through the appliance. The main body is moveable relative to the yoke between an upright position and a reclined position. A retaining mechanism is provided for inhibiting rotation of the head relative to the yoke when the main body is in the upright position. The retaining mechanism includes a locking member which is moveable between a stowed position and a deployed position for inhibiting rotation of the head relative to the yoke, and an actuator for urging the locking member towards its deployed position. To provide a compact appliance, the actuator is carried by the casing so as to move therewith and urge the locking member towards its deployed position as the main body is moved to the upright position.

Abstract: A surface treating appliance includes a surface treating head rotatably connected to a yoke, and a main body pivotably moveable relative to the yoke about a pivot axis between an upright position and a reclined position. A retaining mechanism is provided for inhibiting rotation of the head relative to the yoke when the main body is in the upright position. The retaining mechanism includes a locking member which is moveable between a stowed position and a deployed position for inhibiting rotation of the head relative to the yoke, and an actuator for urging the locking member towards its deployed position. To provide a compact appliance, the actuator moves with the main body about the pivot axis to urge the locking member towards its deployed position as the main body is moved to the upright position.

Abstract: A cleaner head for a cleaning appliance includes a housing, a moveable agitator located within the housing, and a detachable unit extending about the agitator. The detachable unit includes a sole plate having a suction opening through which dirt-bearing air enters the cleaner head, a chassis detachably connected to the housing, and a flexible annular seal for allowing relative movement between the housing and the sole plate. One end of the flexible annular seal is connected to the chassis and the other end of the flexible annular seal is connected to the sole plate.