公开(公告)号：WO2019087175A1

公开(公告)日：2019-05-09

申请号：PCT/IL2017/051209

申请日：2017-11-06

Applicant: BOGRASH, Philip

Inventor： BOGRASH, Philip

IPC: B64C11/00

Abstract: A blade is provided for the cycloidal marine propellers or cycloidal aerial rotors which is given the capabilities, in response to control system commands, to dynamically and in real time flex itself along its chord in any required way, vary its relative pivot point position, change its form by extending or retracting a trailing edge extension, tum the flap along the trailing edge in either direction, or allow the blade to be turned by airflow, the blade optionally provided with one or more elastic trailing edges whose stiffness is dynamically, and possibly differentially along the blade span, variable by the control system, the leading and trailing edges being selectively flexible or rigid, the blade provided with the capability of varying its cross-sectional profile thickness, and the blade including flow permeability along its surface, the control system continually optimally adjust the blade in response to its operating environment as the blade travels along its trajectory within each revolution.

公开(公告)号：WO2017175217A1

公开(公告)日：2017-10-12

申请号：PCT/IL2017/050401

申请日：2017-04-03

Applicant: BOGRASH, Philip

Inventor： BOGRASH, Philip

IPC: B64C27/00 ,  B64C11/00 ,  B64C39/00 ,  F01D7/00

Abstract: To eliminate stability issues in forward flight due to oncoming flow interfering with the flows produced inside the rotor, rotor shielding or enclosure are used giving it the ability to operate steadily at various forward speeds. Furthermore to improve performance and flows cycloidal rotor/propeller has blades travelling along generally non-circular and elongated track and is able to transition to a variety of other track shapes having corresponding blade orbit shapes. Track shape variation designs similar to such track designs for blade trajectory determination are used for the purpose of changing the blades pitch and their cross-sectional shape. One embodiment uses fixed elliptic shape track upon which run carriages connected to blade shafts. Said track can be inclined about its major axis thereby changing its shape projection onto the plane in which blades travel thus changing the elliptic shape of their orbit. Another embodiment during rotor's transitional phase of operation has computer controlled actuators dynamically varying the blades radial positions and thus their trajectory while each blade also runs on and flexes the track containing electro-rheological fluid in the pivots which, once desired orbital trajectory and corresponding track shape are reached and voltage is applied, instantly solidifies making the track rigid and the actuators disengage until the orbit has to change again. Third embodiment uses flexible track with size varying elements built-in; when these elements are activated in proper sequence by computer control system track flexes into shape corresponding to desired orbit shape. Fourth embodiment uses camshaft with continuous surface around which run rollers linked to blades. Camshaft's axial movement accomplishes change of camshaft cross-section shape being followed by rollers and accordingly results into orbit shape changes. Other embodiments feature the neutralization of centrifugal forces acting on the blades, adjustable shape and position vanes control the flows in, out and inside of rotor to further improve rotor performance, forward thrust and prevent rotorcraft destabilization.

公开(公告)号：WO2018073817A3

公开(公告)日：2018-04-26

申请号：PCT/IL2017/051140

申请日：2017-10-16

Applicant: BOGRASH, Philip

Inventor： BOGRASH, Philip ,  BAKKER, Mark

IPC: F16B39/10 ,  F16B39/04 ,  F16B39/08 ,  F16B39/20 ,  F16B39/24 ,  F16B39/28

Abstract: In one embodiment of this invention the washers have been provided with the bottom teeth, which sink into the wood surface during nut tightening thus immobilizing the washer, and a turnable upward flap which when bent upward and pressing against the nut facet is preventing its loosening. In another similar embodiment the washer is provided with turnable upward bracket which has a tip entering the screw top's socket or slit, thereby immobilizing the screw and preventing its loosening. As a replacement for cylindrical nuts, a number of types of elongated nuts with open "C" –like cross-sections which elastically compress with their threaded hole becoming misaligned with the screw thereby jamming it. Said misalignment prevents overtightening and contributes to prevention of loosening, while the elastic compression of this nut acts in a way similar to a spring lock-washer preventing loosening. Similar elongated nuts with open cross-section are provided wherein the threaded hole is on top and the bolt is passed through an unthreaded hole between left and right edges which move towards it and grip it at the end of tightening. Said grip prevents overtightening and loosening.

公开(公告)号：WO2009109918A2

公开(公告)日：2009-09-11

申请号：PCT/IB2009/050862

申请日：2009-03-03

Applicant: BOGRASH, Philip

Inventor： BOGRASH, Philip

CPC classification number: F03D5/00 ,  B64C11/00 ,  B64C39/005 ,  F03D5/04 ,  Y02E10/70

Abstract: A cycloidal rotor system having airfoil blades travelling along a generally non-circular, elongated and, in most embodiments, dynamically variable orbit. Such non-circular orbit provides a greater period in each revolution and an optimized relative wind along the trajectory for each blade to efficiently maximise lift when orbits are elongated horizontally, or thrust/propulsion when orbits are vertically elongated. Most embodiments, in addition to having the computer system controlled actuators to dynamically vary the blade trajectory and the angle of attack, can also have the computer system controlled actuators for dynamically varying the spatial orientation of the blades; enabling their slanting motion upward/downward and/or backsweep/forwardsweep positioning to produce and precisely control a variety of aerodynamic effects suited for providing optimum performance for various operating regimes, counter wind gusts and enable the craft to move sideways. Thus a rotor is provided, which when used in a VTOL rotorcraft, will require lower engine power to match or exceed the operating performance of VTOL rotorcrafts equipped with prior art rotors, this rotor also offers increased efficiency and decreased required power when used for generating the propulsive force for various vehicles or used as a fan.

Abstract translation: 一种摆线转子系统，其具有沿着通常非圆形，细长的并且在大多数实施例中是动态可变轨道运行的翼型叶片。 这种非圆形轨道在每个旋转中提供更大的周期，并且沿着轨道的每个叶片提供优化的相对风，以便当轨道水平伸长时或当轨道垂直伸长时推力/推进时有效地最大化升力。 除了使计算机系统控制的致动器动态地改变叶片轨迹和迎角之外，大多数实施例还可以具有用于动态地改变叶片的空间取向的计算机系统控制的致动器; 使其能够向上/向下倾斜和/或向后/向后移动定位，以产生并精确地控制各种适合于为各种操作方式，逆风阵阵提供最佳性能的空气动力学效应，并使得该技术能够侧向移动。 因此，提供了一种转子，当在VTOL旋翼航空器中使用时，将需要更低的发动机功率以匹配或超过装备有现有技术转子的VTOL旋翼航空器的操作性能，该转子还提供增加的效率并且在用于产生 各种车辆的推进力或用作风扇。

公开(公告)号：WO2018061005A1

公开(公告)日：2018-04-05

申请号：PCT/IL2017/051095

申请日：2017-09-28

Applicant: BOGRASH, Philip

Inventor： BOGRASH, Philip ,  BAKKER, Mark

IPC: F16B39/10 ,  F16B39/14 ,  F16B39/20 ,  F16B39/24 ,  F16B39/26 ,  F16B39/28 ,  F16B39/282 ,  F16B39/284 ,  F16B39/286 ,  F16B39/32 ,  F16B39/34

CPC classification number: F16B39/26 ,  F16B31/028

Abstract: In a number of embodiment the washers of this invention have been provided with the narrowing central hole wherein the washer is being compressed during tightening thereby gripping the bolt and preventing its further turning whereas the nut and the washer are immobilized relative to each other. In another embodiments when the washer is compressed, wedges and preventing its further turning and thus preventing any increase in tightening level. Stoppers are also provided which are put on top of the embodiments with a nut having cuts along parts of its length in combination either with a flat or cup washer for compressing the nut radially and thus gripping the bolt at a predetermined axial load/torque level, as well as a nut having a cut through the middle and two footers which flexes when acted upon by axial load of predetermined level and reaction forces from the two footers gripping the bolt

Abstract translation: 在许多实施例中，本发明的垫圈设置有变窄的中心孔，其中垫圈在紧固期间被压缩从而夹紧螺栓并防止其进一步转动，而螺母和垫圈是 相对于彼此固定。 在另一个实施例中，当洗衣机被压缩时，楔入并防止其进一步转动并因此防止收紧水平的任何增加。 还提供了止动器，所述止动器放置在实施例的顶部上，具有沿其长度的部分切割的螺母与用于径向压缩螺母并因此在预定的轴向负载/扭矩水平处夹紧螺栓的平垫圈或杯垫圈组合， 以及具有切穿中部和两个脚的螺母，该螺母在受到预定水平的轴向载荷和来自握住螺栓的两个脚的反作用力的作用时弯曲。

公开(公告)号：WO2017077541A1

公开(公告)日：2017-05-11

申请号：PCT/IL2016/051195

申请日：2016-11-03

Applicant: BOGRASH, Philip

Inventor： BOGRASH, Philip

IPC: F16F1/22 ,  F16F1/04 ,  F16F9/10 ,  F16F9/44

CPC classification number: F16F1/04 ,  F16F1/041 ,  F16F1/22 ,  F16F9/10 ,  F16F9/106 ,  F16F9/44 ,  F16F2224/0258

Abstract: Springs of different types are provided with the ability to dynamically change stiffness. A number of embodiments feature hollow tubing wherein stiffness change is accomplished due to the pressure change inside the tubing which affects the stresses in tubing walls. In other embodiments inside pressure change causes variability in tubing's cross-section shape and size leading to large changes in stiffness. A number of embodiments feature spring coil diameter variability achieved by a variety of means and resulting in highly substantial changes in stiffness and for some embodiments spring length variability thus providing them with actuation capability in addition to stiffness variability.

Abstract translation:

不同类型的弹簧具有动态改变刚度的能力。 许多实施例的特征在于中空管道，其中由于管道内部的压力变化而实现刚度变化，这会影响管道壁中的应力。 在其他实施例中，压力变化内部导致管道的横截面形状和尺寸的变化性导致刚度的巨大变化。 许多实施例的特征在于通过多种方式实现的弹簧卷径变化性，并且导致刚度的非常显着的变化，并且对于一些实施例的弹簧长度变化性，从而为它们提供除刚度可变性之外的致动能力。

公开(公告)号：WO2015166476A2

公开(公告)日：2015-11-05

申请号：PCT/IL2015/000021

申请日：2015-04-30

Applicant: BOGRASH, Philip ,  BOGRASH, Roger

Inventor： BOGRASH, Philip

CPC classification number: F16F9/44 ,  B60G11/00 ,  B60G2206/42 ,  F16F1/041 ,  F16F1/22 ,  F16F1/3615 ,  F16F9/10 ,  F16F2228/066

Abstract: Springs of different types are provided with the ability to dynamically change stiffness. For one embodiment turning the elastic beams with elongated cross-section inside a leaf spring's housing plate, leaf springs stiffness is varied. Friction forces between plates are also controlled by using a thin layer of electro-rheological fluid between plates whose viscosity is greatly varied by application of voltage. Second embodiment springs made of hollow tubing filled with oil wherein inside pressure is changed by an actuated membrane or piston whose movement drastically increases the hydrostatic pressure inside the tubing and thus increases tensile stress in the tubing's wall and expands the diameter of tubing which may be of cross-section purposely suited for expansion, thereby increasing its stiffness or decreasing it with any desired frequency or changing the stiffness possibly in milliseconds for a period of time. These springs that are also provided with limited actuation capability are especially suitable for counteracting vibration when changing stiffness with same frequency as vibration. When a number of such springs are used to support one load, they can be used for dynamically varying the load distribution or preventing a change to said load distribution in real time. Another embodiment features annular corrugated tubing which with the increase in inside pressure will substantially lengthen, producing large coil radius expansion and accordingly large decrease in spring stiffness, still another embodiment uses corrugated tubing inside a retaining cylinder; said tubing expands lengthwise when inside pressure is increasing but retaining cylinder forces the lengthening tubing to produce new coils inside of it resulting in spring length increase that is actuation and large stiffness variability resulting from coil number variability.

Abstract translation: 提供不同类型的弹簧具有动态改变刚度的能力。 对于一个实施例，在弹簧的外壳板内转动具有细长横截面的弹性梁，板簧刚度变化。 板之间的摩擦力也可以通过在其粘度通过施加电压大大变化的板之间使用薄层的电流变流体来控制。 第二实施例弹簧由填充有油的中空管制成，其中内部压力由致动的膜或活塞改变，其运动显着地增加管道内的静水压力，并且因此增加管道壁中的拉伸应力并且扩大管道的直径， 横截面有意地适合于膨胀，从而增加其刚度或以任何期望的频率降低它，或者可以在一段时间内以毫秒为单位改变刚度。 这些还具有有限的致动能力的弹簧特别适用于当以与振动相同的频率改变刚度时抵消振动。 当使用多个这样的弹簧来支撑一个负载时，它们可以用于动态地改变负载分布或者实时地防止对所述负载分布的改变。 另一个实施例具有环形波纹管，其随着内部压力的增加将基本延长，产生大的线圈半径膨胀，并因此大大降低弹簧刚度，另一实施例在保持筒内使用波纹管; 当内部压力增加时，所述管道纵向扩展，但是保持气缸迫使延长管道在其内部产生新的线圈，从而导致弹簧长度增加，这是由线圈数变异性导致的致动和大的刚度变化性。

公开(公告)号：WO2020016885A1

公开(公告)日：2020-01-23

申请号：PCT/IL2019/050792

申请日：2019-07-14

Applicant: BOGRASH, Philip

Inventor： BOGRASH, Philip ,  FRANKFURTER, David

IPC: F16B37/04 ,  F16B39/00 ,  F16B39/02 ,  F16B39/20 ,  F16B37/12

Abstract: A coiled wire nut stopper to be placed on top of the nut by screwing it onto the part of bolt protruding from the nut. Most versions of nut stoppers have leading sharp end of the wire entering the clearance between end of the nut's thread and bolt thread channel, jamming the nut to prevent its loosening. The coils are tightly hugging the bolt to hold nut stopper in place. Nut stopper can be made symmetrical with 2 sharp wire ends. Nut stopper is movable by two wire loop handles located on leading and trailing coils or by a plurality of handles along the coils whose tips form a shape suitable for gripping either by hand or by a wrench or socket. Nut stoppers with two handles on leading and trailing coils located close together in horizontal plane allow pressing handles closer expanding the coils diameter and simply place or remove the nut stopper without screwing it.

公开(公告)号：WO2018073817A2

公开(公告)日：2018-04-26

申请号：PCT/IL2017/051140

申请日：2017-10-16

Applicant: BOGRASH, Philip

Inventor： BOGRASH, Philip ,  BAKKER, Mark

IPC: F16B43/02 ,  F16B25/00

CPC classification number: F16B39/282 ,  F16B37/047 ,  F16B39/108 ,  F16B43/00

Abstract: In one embodiment of this invention the washers have been provided with the bottom teeth, which sink into the wood surface during nut tightening thus immobilizing the washer, and a turnable upward flap which when bent upward and pressing against the nut facet is preventing its loosening. In another similar embodiment the washer is provided with turnable upward bracket which has a tip entering the screw top's socket or slit, thereby immobilizing the screw and preventing its loosening. As a replacement for cylindrical nuts, a number of types of elongated nuts with open "C" –like cross-sections which elastically compress with their threaded hole becoming misaligned with the screw thereby jamming it. Said misalignment prevents overtightening and contributes to prevention of loosening, while the elastic compression of this nut acts in a way similar to a spring lock-washer preventing loosening. Similar elongated nuts with open cross-section are provided wherein the threaded hole is on top and the bolt is passed through an unthreaded hole between left and right edges which move towards it and grip it at the end of tightening. Said grip prevents overtightening and loosening.

Abstract translation: 在本发明的一个实施例中，垫圈具有底部齿，该底部齿在拧紧螺母期间沉入木材表面中，从而固定垫圈;以及可翻转的向上翻转片，当向上弯曲并且压向 坚果面防止其松动。 在另一个类似的实施例中，垫圈设置有可转动的向上支架，该可转动的向上支架具有进入螺钉顶部的插口或狭缝的尖端，由此固定螺钉并防止其松动。 作为圆柱形螺母的替代品，许多类型的带“C”开口的细长螺母， 由于其螺纹孔弹性压缩而变得与螺钉不对齐，从而堵塞它。 所述错位防止了过度拧紧并且有助于防止松动，而该螺母的弹性压缩以类似于防止松动的弹簧锁紧垫圈的方式起作用。 提供了具有开口横截面的类似的细长螺母，其中螺纹孔位于顶部，并且螺栓穿过左边缘和右边缘之间的无螺纹孔，该螺纹孔向其移动并且在拧紧结束时抓紧它。 所述手柄防止过度拧紧和松动。

公开(公告)号：WO2017033183A1

公开(公告)日：2017-03-02

申请号：PCT/IL2016/050913

申请日：2016-08-21

Applicant: BOGRASH, Philip

Inventor： BOGRASH, Philip

IPC: F16B39/284 ,  F16B39/24 ,  F16B39/10

CPC classification number: F16B39/284 ,  F16B1/0014 ,  F16B1/0071 ,  F16B31/028 ,  F16B31/06 ,  F16B39/24 ,  F16B39/26

Abstract: A lock-washer of conical, annular or other shapes capable of elastic flattening when the threaded connection, of which it is a part, is tightened and having tabs along the perimeter of the central hole. For most embodiments the tabs' tips form a circle of a diameter slightly larger than that of a threaded part which is to pass through the central hole. When during tightening the axial force acting on the lock-washer reaches a pre- determined level and the lock-washer flattens, its central hole diameter decreases and the tab tips enter the thread channel, which will cause the thread to jam, thus preventing further tightening, thereby limiting the axial load in the threaded connection to a pre-determined level. Another embodiment provides a lock-washer which compresses and expands radially during tightening providing a visual and/or audible signal for the worker when said expansion and a corresponding axial load reach the designated level.

Abstract translation: 一种锥形，环形或其他形状的锁紧垫圈，当螺纹连接部分被拧紧并且具有沿着中心孔的周边的突出部时能够弹性变平。 对于大多数实施例，突出部的尖端形成比通过中心孔的螺纹部分的直径略大的直径的圆。 当拧紧时，作用在锁紧垫圈上的轴向力达到预定水平，锁紧垫圈平坦，其中心孔直径减小，拉片尖端进入螺纹通道，这将导致螺纹堵塞，从而进一步防止 从而将螺纹连接中的轴向载荷限制到预定水平。 另一个实施例提供一种锁紧垫圈，其在紧固期间径向压缩和膨胀，当所述膨胀和相应的轴向载荷达到指定水平时为工作者提供视觉和/或听觉信号。