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公开(公告)号：US5064235A
公开(公告)日：1991-11-12
申请号：US542985
申请日：1990-06-25
Applicant: Michel Lessard
Inventor： Michel Lessard
Abstract: Disclosed is a lock capable of being automatically bolted and released, and useful as a knot running along a loop made by a sling wound around a load to be dragged. The lock is made up of a keeper and of a bolt capable of fitting into it, the bolt having a radial lock face. A claw is mounted on the keeper. The claw is capable to move between a retracted position to allow insertion of the bolt in the keeper and an active position where it locks with the lock face, after the bolt has been inserted the keeper. In the active position, a spring device presses on the claw to draw the bolt fully in the keeper. The keeper is also provided with at least one pawl which is made to move between a retracted position, free of the bolt, and an active position where it stands in locking engagement upstream of the lock face. A damper device acts on each pawl for retarding radial movement thereof. According to a first embodiment, the lock is constructed so that each pawl moves in active position when the bolt is inserted into the keeper, and so that the movement of each pawl back to a retracted position is retarded when the sling to which the bolt is fastened, is abruptly pulled. According to a second embodiment, the lock is constructed so that each pawl moves in active position when the bolt is removed from the keeper and the movement of each pawl toward its active position is retarded sufficiently to cause locking engagement of the pawl with the lock face of the bolt only when the sling to which the bolt is fastened is gently pulled. Abrupt pulling in the first case, and gentle pulling in the second case, both cause each pawl to butt against the lock face of the bolt and thus to prevent removal of the bolt from the keeper so that the load may safely be dragged away, the noose around it being then safely tightened.
Abstract translation: 公开了一种能够被自动地螺栓连接和释放的锁，并且可用作沿着由缠绕在待拖动的负载上的吊索制成的环的结。 该锁由保持器和能够装入其中的螺栓组成，螺栓具有径向锁定面。 一个爪子安装在门把上。 爪能够在缩回位置之间移动，以在螺栓已经插入保持器之后允许将螺栓插入保持器中以及与锁定面锁定的主动位置。 在主动位置，弹簧装置按压爪，将螺栓完全拉入门把。 保持器还设置有至少一个棘爪，其被制成在没有螺栓的缩回位置和其在锁定面上游锁定接合的位置处移动。 阻尼装置作用于每个棘爪以阻止其径向移动。 根据第一实施例，锁被构造成使得当螺栓插入到保持器中时，每个棘爪移动到主动位置，并且使得当螺栓的吊索被拉动时，每个棘爪的运动回到缩回位置被延迟 紧固，突然拉。 根据第二实施例，锁被构造成使得当螺栓从保持器移除时，每个棘爪移动到主动位置，并且每个棘爪朝向其活动位置的移动被充分延迟以使得棘爪与锁定面的锁定接合 只有当固定螺栓的吊索被轻轻拉出时，才能使用螺栓。 在第一种情况下突然拉动，并且在第二种情况下轻柔拉动，都使每个棘爪抵靠螺栓的锁定面，从而防止螺栓从保持器中移开，使得负载可以安全地拖走， 其周围的绞索被安全地收紧。
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公开(公告)号：US4773455A
公开(公告)日：1988-09-27
申请号：US110428
申请日：1987-10-20
Applicant: Michel Lessard
Inventor： Michel Lessard
IPC: A01G23/095 , A01G23/02 , B27L1/00
CPC classification number: A01G23/095
Abstract: An improved boom construction having a base, a first straight boom slidably mounted on the base, and a second, hinged boom pivotally mounted at one end to the base and at its other end to the front end of the first boom. Power jacks are provided for operating the second boom to move its other end toward or away from its one end so as to slide the first boom relative to the base. The improved boom construction is preferably employed on a tree delimber with a tree delimbing unit mounted on the front end of the first boom, and tree gripping unit mounted on the base beneath the first boom. A rotating reel is advantageously provided on the base above the first boom for simultaneously winding and unwinding flexible feed and return hydraulic lines extending over the top of the boom, and connected to the delimbing unit, as the first boom slides.
Abstract translation: 一种改进的起重臂结构，其具有基座，可滑动地安装在基座上的第一直臂，以及在一端枢转地安装到基座并且在另一端枢转地安装到第一起重臂的前端的第二铰接吊臂。 提供动力千斤顶用于操作第二起重臂以将其另一端朝向或远离其一端移动，以便相对于基座滑动第一起重臂。 优选地，在具有安装在第一起重臂的前端上的树分离单元的树分隔器上采用改进的起重臂结构，以及安装在第一起重臂下方的基座上的树形夹持单元。 旋转卷轴有利地设置在第一起重臂上的基座上，用于当第一吊杆滑动时，同时卷绕和展开在悬臂的顶部上延伸的柔性进给和返回液压管线，并连接到分离单元。
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公开(公告)号：US20090298652A1
公开(公告)日：2009-12-03
申请号：US12475870
申请日：2009-06-01
Applicant: Michel Lessard
Inventor： Michel Lessard
IPC: A63B31/00
CPC classification number: A63B69/12 , A63B24/0062 , A63B2220/51
Abstract: The swim training device includes a pole for use in compression between a belt worn on the waist of the swimming user and a floating base.
Abstract translation: 游泳训练装置包括用于在佩戴在游泳用户的腰部上的皮带与浮动底座之间的压缩中使用的杆。
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Patent Agency Ranking
公开(公告)号：US5179420A
公开(公告)日：1993-01-12
申请号：US713252
申请日：1991-06-07
Applicant: Vincent C.-Y. So , Michel Lessard
Inventor： Vincent C.-Y. So , Michel Lessard
IPC: G01M11/00
CPC classification number: G01M11/3127
Abstract: In an optical time domain reflectometer (OTDR), an optical signal is coupled to an optical fiber path to be tested, and back-scattered and reflected light from the optical fiber path is detected and used to determine loss-distance characteristics of the path. A control unit varies the wavelength of the optical signal by varying the temperature of a semiconductor laser constituting the optical source, so that the loss-distance characteristics for a plurality of different wavelengths are determined and can be displayed to show any wavelength dependent loss of the optical fiber path, which loss may be due to modal interference associated with closely spaced discontinuities in the path.
Abstract translation: 在光时域反射计（OTDR）中，将光信号耦合到要测试的光纤路径，并且检测来自光纤路径的反向散射和反射光，并用于确定路径的损耗距离特性。 控制单元通过改变构成光源的半导体激光器的温度来改变光信号的波长，从而确定多个不同波长的损耗距离特性并且可以被显示以显示任何波长相关的损耗 光纤路径，其损失可能是由于与路径中紧密间隔的不连续性相关联的模态干扰。
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公开(公告)号：US4878607A
公开(公告)日：1989-11-07
申请号：US264972
申请日：1988-10-31
Applicant: Michel Lessard
Inventor： Michel Lessard
IPC: B66D3/00
CPC classification number: B66D3/003
Abstract: The present disclosure describes an apparatus for unreeling a cable. The apparatus comprises a drawing mechanism for unreeling the cable. This drawing mechanism includes a motor provided with a shaft, a disk having its center rigidly locked to the shaft, the disk being provided with three pins perpendicular to its surface, and a wheel having its center positioned around the shaft by means of a ball bearing. The wheel has one of its lateral sides adjacent to the disk surface provided with the pins, the side of the wheel being provided with three slots extending circumferentially for receiving the three pins in such a manner that phase displacement is allowed between the disk and the wheel. Three springs are provided for keeping each pin against the forward extremity of its respective slot. The circumference of the wheel is covered by a resilient friction-surface adapted to squeeze the cable against a rotative guiding roller which allows unreeling of the cable by rotative movement of the wheel. The apparatus also comprises a hydraulic cylinder for applying the wheel against the rotative guiding roller, and a detecting and controlling mechanism for detecting a phase displacement between the wheel and the disk, and, upon detection of such phase displacement, activating the motor, when the cable is in a rest position, or disabling the motor when the cable is unreeling.
Abstract translation: 本公开描述了一种用于展开电缆的装置。 该装置包括用于使绳索松开的牵引机构。 该牵引机构包括具有轴的马达，具有刚性地锁定在轴上的中心的盘，盘具有垂直于其表面的三个销，并且其轮毂的中心通过滚珠轴承 。 车轮具有与设置有销的盘表面相邻的侧面中的一个侧面，轮的侧面设置有三个槽，其周向延伸以接收三个销，使得在盘和车轮之间允许相位移动 。 提供三个弹簧用于将每个销保持在其相应槽的前端上。 轮的圆周由适于将电缆挤压到旋转引导辊的弹性摩擦表面覆盖，所述旋转引导辊允许通过车轮的旋转运动来松开缆索。 该装置还包括用于将轮抵靠旋转引导辊的液压缸，以及用于检测车轮和盘之间的相位偏移的检测和控制机构，并且在检测到这种相位移动时启动马达，当 电缆处于静止位置，或者当电缆松开时禁用电机。
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公开(公告)号：US08807908B2
公开(公告)日：2014-08-19
申请号：US12374887
申请日：2007-07-25
Applicant: Michel Lessard
Inventor： Michel Lessard
IPC: B66F9/18
Abstract: A control for a load-handling device including a gripper for handling a load and being connected to pressure controlled gripping, lifting and tilting actuators The control including a pressure-sensing actuator assembly, a gripping pressure regulator and pressure control assembly. The pressure-sensing actuator assembly being is placed in pressure communication with the lifting and tilting actuators. The gripping pressure regulator regulates the gripping pressure. The pressure control assembly includes interrelated movable members for interacting with the pressure-sensing actuator assembly and for acting on the gripping pressure regulator. The pressure-sensing actuator is adapted to sense the weight of the load from the pressure of the lifting and tilting actuators and to communicate this pressure to the pressure control assembly. Thereby, interacting with the pressure control assembly as to cause to latter to so act on the gripping pressure regulator as to provide a suitable gripping pressure in response to the weight of the load.
Abstract translation: 一种用于装载处理装置的控制装置，包括用于处理负载并连接到压力控制的夹紧，提升和倾斜致动器的夹持器。控制器包括压力感测致动器组件，夹紧压力调节器和压力控制组件。 压力感测致动器组件被放置成与提升和倾斜致动器压力连通。 夹紧压力调节器调节夹紧压力。 压力控制组件包括用于与压力感测致动器组件相互作用并且用于作用在夹紧压力调节器上的相互关联的可动构件。 压力感应致动器适于从提升和倾斜致动器的压力感测负载的重量，并将该压力传递到压力控制组件。 由此，与压力控制组件相互作用，从而使后者对夹紧压力调节器起作用，以响应于负载的重量提供合适的夹紧压力。
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公开(公告)号：US20090304479A1
公开(公告)日：2009-12-10
申请号：US12374887
申请日：2007-07-25
Applicant: Michel Lessard
Inventor： Michel Lessard
Abstract: A control for a load-handling device including a gripper for handling a load and being connected to pressure controlled gripping, lifting and tilting actuators The control including a pressure-sensing actuator assembly, a gripping pressure regulator and pressure control assembly. The pressure-sensing actuator assembly being is placed in pressure communication with the lifting and tilting actuators. The gripping pressure regulator regulates the gripping pressure. The pressure control assembly includes interrelated movable members for interacting with the pressure-sensing actuator assembly and for acting on the gripping pressure regulator. The pressure-sensing actuator is adapted to sense the weight of the load from the pressure of the lifting and tilting actuators and to communicate this pressure to the pressure control assembly. Thereby, interacting with the pressure control assembly as to cause to latter to so act on the gripping pressure regulator as to provide a suitable gripping pressure in response to the weight of the load.
Abstract translation: 一种用于装载处理装置的控制装置，包括用于处理负载并连接到压力控制的夹紧，提升和倾斜致动器的夹持器。控制器包括压力感测致动器组件，夹紧压力调节器和压力控制组件。 压力感测致动器组件被放置成与提升和倾斜致动器压力连通。 夹紧压力调节器调节夹紧压力。 压力控制组件包括用于与压力感测致动器组件相互作用并且用于作用在夹紧压力调节器上的相互关联的可动构件。 压力感应致动器适于从提升和倾斜致动器的压力感测负载的重量，并将该压力传递到压力控制组件。 由此，与压力控制组件相互作用，从而使后者对夹紧压力调节器起作用，以响应于负载的重量提供合适的夹紧压力。
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公开(公告)号：US4913203A
公开(公告)日：1990-04-03
申请号：US345181
申请日：1989-05-01
Applicant: Michel Lessard
Inventor： Michel Lessard
IPC: A01G23/09
CPC classification number: A01G23/09 , Y10S83/928 , Y10T83/8812 , Y10T83/9401
Abstract: A tree shear is disclosed which has a frame on which is mounted a pair of blades for pivotal movement relative to one another in scissors fashion; the blades being pivoted by hydraulic jacks. Each blade pivots on a rotary shaft having an eccentric center portion, each blade being mounted on the eccentric portion so that, as the shaft rotates, it causes the blade to oscillate.
Abstract translation: 公开了一种树剪，其具有框架，其上安装有一对刀片，用于以剪刀的方式相对于彼此枢转运动; 叶片由液压千斤顶枢转。 每个叶片在具有偏心中心部分的旋转轴上枢转，每个叶片安装在偏心部分上，使得当轴旋转时，叶片振动。
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