Flapper valve for percussion drill tools

    公开(公告)号:US12146387B2

    公开(公告)日:2024-11-19

    申请号:US18020779

    申请日:2021-08-18

    Abstract: The present invention relates to a flapper valve for a percussion drill tool. The valve comprises a first side engageable with a planar surface of an element of the percussion drill tool to alternately close first and second fluid flow paths of the percussion drill tool. The planar surface comprises first and second apertures in fluid communication with the first and second fluid flow paths, respectively. The first side of the flapper valve comprises a first planar portion and a second planar portion and a first curved tip portion intermediate the first and second planar portions. The flapper valve is pivotable about the first curved tip portion between a first position, in which the first planar portion of the flapper valve is in sealing contact with the planar surface to close the first aperture, and a second position, in which the second planar portion of the flapper valve is in sealing contact with the planar surface to close the second aperture.

    MAGNETICALLY ACTUATED PIPE VALVE WITH TORQUE-LIMITING CLUTCH AND POSITION INDICATION

    公开(公告)号:US20240369153A1

    公开(公告)日:2024-11-07

    申请号:US18646183

    申请日:2024-04-25

    Abstract: A valve includes a magnetic actuation mechanism providing torque-limiting capabilities and valve stem position indication. A drive shaft of the valve is surrounded by a first annular magnetic array within a fully sealed pressure vessel. A second annular magnetic array is positioned outside of the pressure vessel and surrounds the fully sealed pressure vessel. Each of the first annular magnetic array and the second annular magnetic array include magnets having alternating polarity, allowing the first annular magnetic array and the second annular magnetic array to form a first order coupling mechanism. When the second, outside annular magnetic array is rotated, the first annular magnetic array is caused to move, actuating the valve. Importantly, the valve includes a position indication system able to determine a position of the valve stem and includes an automatic feedback mechanism for comparing an actual position of the valve with an expected position of the valve.

    Valve for fluids, preferably for gases

    公开(公告)号:US12110981B2

    公开(公告)日:2024-10-08

    申请号:US17755619

    申请日:2019-11-28

    Inventor: Bruno Giordano

    CPC classification number: F16K31/0655 F16K31/082 F16K39/022

    Abstract: A valve (1) for fluids, preferably for gases, comprises an inlet passage (2); an outlet passage (3); a shutter (4) interposed between the inlet passage (2) and the outlet passage (3) and movable between an open position and a closed position; actuating means (26,27). The valve (1) also comprises actuating means (26,27) operatively active on the shutter (4), which comprises an electromagnet (26) and a ferromagnetic element (27) that is movable as a function of the field generated by the electromagnet (26) for displacing the shutter (4) along the movement direction (L). In particular, the actuating means comprises a tubular body (5) made of non-magnetic material in which the ferromagnetic body (27) is inserted.

    ELECTROMAGNETICALLY ACTIVATED PIPE VALVE
    6.
    发明公开

    公开(公告)号:US20240247731A1

    公开(公告)日:2024-07-25

    申请号:US18624528

    申请日:2024-04-02

    CPC classification number: F16K31/043 F16K1/14 F16K31/082

    Abstract: The present invention is directed to an electromagnetic actuation system for opening and closing pipe valves. The electromagnetic actuation systems utilizes one or more electromagnets surrounding one or more permanent magnets attached to a rotary shaft of the valve mechanism. A controller activates the one or more electromagnets such that the produced magnetic field rotates, thereby applying a force to the one or more permanent magnets and thus rotating the rotary shaft. The system does not require rotation of the one or more electromagnets relative to the one or more permanent magnets, advantageously reducing the number of moving parts within the valve system.

    Expansion valve
    7.
    发明授权

    公开(公告)号:US11940191B2

    公开(公告)日:2024-03-26

    申请号:US17541231

    申请日:2021-12-02

    CPC classification number: F25B41/35 F16K31/04 F16K31/08 F16K31/50 F25B41/345

    Abstract: An expansion valve includes a housing, a threaded bush, a valve body, and a permanent magnet body. The threaded bush is arranged in the housing and extends along an axial direction. The threaded bush includes an external thread. The valve body is partially adjustably received in the threaded bush along the axial direction. The permanent magnet body is of a pot-shaped design and arranged in the housing. The permanent magnet body extends the threaded bush along the axial direction such that the valve body is partially received in a valve body receptacle surrounded by the permanent magnet body. The permanent magnet body surrounds a radially outside of the threaded bush in a common transition portion. In the transition portion, the permanent magnet body is firmly connected to the threaded bush via a latching connection.

    Valve actuation system through permanent magnet use

    公开(公告)号:US11906070B2

    公开(公告)日:2024-02-20

    申请号:US17303216

    申请日:2021-05-24

    CPC classification number: F16K31/084

    Abstract: Apparatus and associated methods relate to a valve having an actuator configured to translate a mass in a plane and a valve element located out of the first plane and configured to translate along a first linear axis. In an illustrative example, at least one of the mass and the valve element may include a magnetic source providing a persistent magnetic field and the other may include a non-magnetized, magnetically permeable mass. Reluctance-induced forces may, for example, translate the valve element towards the mass along the first linear axis when the mass is brought into register with a second linear axis. The first linear axis and the second linear axis may, for example, be colinear. Various embodiments may advantageously provide a valve requiring low energy input for operation.

    Electronic device for supporting sliding operation

    公开(公告)号:US11886242B2

    公开(公告)日:2024-01-30

    申请号:US17512073

    申请日:2021-10-27

    CPC classification number: G06F1/1624 F16K31/0675 F16K31/086

    Abstract: An electronic device is provided. The electronic device includes a first housing, a second housing coupled to the first housing and that performs a sliding operation, a display, of which a size of a visual exposure area is changed in correspondence to the sliding operation of the second housing, a first variable magnetism member disposed at a first location of the first housing, and of which a magnetic force varies depending on a current or a voltage that is supplied thereto, a second variable magnetism member disposed at a second location of the first housing, and of which a magnetic force varies depending on a current or a voltage that is supplied thereto, a magnet member fixed to an inner surface of the second housing, and that moves between the first variable magnetism member and the second variable magnetism member during the sliding operation, and a processor operatively connected.

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