Low joint strain fitness system
    1.
    发明授权

    公开(公告)号:US12280288B2

    公开(公告)日:2025-04-22

    申请号:US18503178

    申请日:2023-11-06

    Abstract: An exercise device is provided using, for example, handles, connected to cords that increase in tension as the handles are pulled. The tension may be provided using elasticity of the cords or by an actuator, for example powered by an electric motor. Pulleys allow adequate extension while remaining compact enough to fit in a standard height room and allowing accessibility to components. Upper and forward pulleys may be used. The upper pulleys may be displaced from potential obstacles, including the forward pulleys.

    DIFFERENTIAL PLANETARY GEARBOX
    2.
    发明申请

    公开(公告)号:US20210025478A1

    公开(公告)日:2021-01-28

    申请号:US17069444

    申请日:2020-10-13

    Abstract: A torque transfer device has plural planets arranged for planetary rotation about one or more sun gears and within one or more ring gears. Each planet includes at least one planetary gear set comprising plural planetary gears connected to rotate together, but having a different diameter to form a differential gear system. To improve load sharing, the plural planetary gears of each planetary gear set may have a different helical angle, the plural planetary gear sets being axially movable with respect to one another. Alternatively or in addition, the planetary gears may be made flexible with respect to radial forces.

    Roller drive
    3.
    发明授权

    公开(公告)号:US10174818B2

    公开(公告)日:2019-01-08

    申请号:US15115897

    申请日:2015-01-30

    Abstract: A high speed ratio drive system is formed of planet rollers, each having varying diameter, an outer fixed ring in contact with one diameter of the planet rollers, and an outer drive ring in contact with another diameter of the planet rollers. An inner drive element is provided by a sun drive roller in contact with the planet rollers or by a planet carrier. Preferably the system has an axial reflective symmetry minimizing twisting forces on the planet rollers.

    MOBILE PLATFORM
    4.
    发明申请
    MOBILE PLATFORM 有权
    移动平台

    公开(公告)号:US20160251044A1

    公开(公告)日:2016-09-01

    申请号:US15012664

    申请日:2016-02-01

    CPC classification number: B62D57/022 B60F3/0007 B60F5/00 B62D57/028

    Abstract: A mobile platform intended for civilian, industrial, research or other use. An ambulation system or mobile platform such as for traveling over uneven terrain includes one or more leg arrangements attached to a main body or chassis. In an embodiment, a leg arrangement comprises one or more legs, such as legs that rotate in the same and singular direction around their respective rotary joints when the vehicle is moving in a single direction. The rotational axis for both legs is located near each other and preferably coaxially and allows ground contact of two or more legs at all times.

    Abstract translation: 用于民用,工业,研究或其他用途的移动平台。 诸如用于在不平坦地形上行进的行走系统或移动平台包括附接到主体或底盘的一个或多个腿部装置。 在一个实施例中,腿布置包括一个或多个腿,例如当车辆沿单个方向移动时围绕其相应的旋转接头以相同和单数方向旋转的腿。 两个腿的旋转轴线彼此靠近并且优选地同轴并且允许两个或更多个腿在任何时候的地面接触。

    Energy transfer machine for corrosive fluids

    公开(公告)号:US12258967B2

    公开(公告)日:2025-03-25

    申请号:US18642412

    申请日:2024-04-22

    Abstract: An internal gear pump or motor includes inner and outer rotors that mesh together. An internal electric motor or generator may include a stator supported by a support element that passes through bearings of the outer rotor and the inner rotor may act as a rotor of the electric motor or generator. With or without the stator, the support element may support bearings of the inner rotor. Fluids may be supplied via the support element for cooling, lubrication or to flush a working fluid out of portions of the pump or motor, such as bearings. Flushing may also occur via channels in the housing. Axial faces of one of a pair of adjacent elements may include portions for improved axial sealing and wearing in of the other of the pair. Fluid may enter and exit chambers between the inner and outer rotors by radial ports.

    Gearbox
    7.
    发明授权
    Gearbox 有权

    公开(公告)号:US11411486B2

    公开(公告)日:2022-08-09

    申请号:US16652801

    申请日:2018-10-02

    Abstract: A planetary gearbox with two rows of planets, at least some of the planets including magnets. The planets are driven by a stator to drive the gearbox as a motor. The planets may be geared with axial portions with different helix angle to position the gears and avoid the need for a planet carrier or bearings. Gears with small heights and/or high pressure angles may be used to avoiding or reduce negative effects of conventional gearing.

    Gearbox
    8.
    发明授权
    Gearbox 有权

    公开(公告)号:US11168762B2

    公开(公告)日:2021-11-09

    申请号:US16759807

    申请日:2018-11-08

    Abstract: A planetary gearbox with two rows of planets between an inner race and a coaxial outer race. An input gear may also mesh with the inner planets or the outer planets. To avoid unmeshing of the gears due to twisting from the applied torque, a camming effect may be used in which applied torque generates a radial preload. The gears that mesh with the input gear may do so at portions of the gears that also mesh with a corresponding one of the inner or outer race. The planets may be geared with axial portions with different helix angle. The inner race or outer race may be formed of two components geared with different helix angle to mesh with the different axial portions of the planets. By using these different components, assembly is eased as the components can be slid onto the planets axially.

    Expandable pistons
    9.
    发明授权

    公开(公告)号:US10738615B1

    公开(公告)日:2020-08-11

    申请号:US16507997

    申请日:2019-07-10

    Abstract: A piston is arranged to move in a cylinder to define a variable volume chamber, and can expand in two directions under the influence of pressure in the variable volume chamber to provide sealing against the cylinder. The piston can comprise a primary foot and a secondary foot arranged to move relative to each other in a first direction. The primary foot and the secondary foot can each comprise plural segments arranged to move relative to each other in a second direction. The piston may be suitable for use in an inner rotor, where it forms the end of a projection of the inner rotor and fully exits and reenters the cylinders.

    DIFFERENTIAL PLANETARY GEARBOX
    10.
    发明申请

    公开(公告)号:US20190085941A1

    公开(公告)日:2019-03-21

    申请号:US16133676

    申请日:2018-09-17

    Abstract: A torque transfer device has plural planets arranged for planetary rotation about one or more sun gears and within one or more ring gears. Each planet includes at least one planetary gear set comprising plural planetary gears connected to rotate together, but having a different diameter to form a differential gear system. To improve load sharing, the plural planetary gears of each planetary gear set may have a different helical angle, the plural planetary gear sets being axially movable with respect to one another. Alternatively or in addition, the planetary gears may be made flexible with respect to radial forces.

Patent Agency Ranking