Class / Patent application number | Description | Number of patent applications / Date published |
254277000 | With fluid or resilient shock absorbing or tension maintaining means attached to, supported by, or supporting guiding structure for cable | 10 |
20090057631 | GEARLESS ABSEILING DEVICE - The invention relates to an abseiling device comprising a cable feeding point and a cable output point ( | 03-05-2009 |
20100108965 | AIR BALANCER - An air balancer has a rotary drum on which a rope member is to be wound and that is supported rotatably by a stationary shaft in a casing, a conversion system that converts pressure of first air supplied into the casing into rotational force of the rotary drum for winding the rope member on the rotary drum, a rotary member that is rotatably supported by the stationary shaft and linked with the rotary drum to integrally rotate therewith, a rotation restriction member to be in contact with the rotary member to restrict rotation thereof, a disengagement mechanism that causes the rotation restriction member to retract by pressure of second air supplied into the casing to thereby disengage the contact between the rotary member and the rotation restriction member, and a control module having an air circuit that supplies the second air into the casing only when the first air is supplied into the casing or when the first air is discharged from the casing. | 05-06-2010 |
20100219388 | Compact Cable Tension Tender Device - A compact cable tension tender device includes first and second pulleys rotatably coupled to a drive shaft. First and second plates are fixed to the drive shaft. Drive stops on the plates engage and rotate the pulleys when the drive shaft is rotated. A resilient coupler urges the first and second pulleys to rotate away from engagement with the drive stops. Cables are coupled to the pulleys and adjusted to be in tension such that the first and second pulleys both engage the drive stops at the same time. The engagement of both pulleys with the drive stops at the same time minimizes lost motion when reversing the rotation of the drive shaft. | 09-02-2010 |
20110175043 | High speed winch - Winch for high speed pulling of cable consisting of a winch drum driven by a motor equipped with stator winding for creation of magnetic field with changing rotational direction or stand still and hydraulic damper disk attached to the cable preventing transient oscillations. | 07-21-2011 |
20130082223 | TENSION CONTROL DEVICE FOR AN ANCHOR LINE ROPE - A tension control device for an anchor line rope of large diameter, which winds off or onto a winch drum at a marine vessel includes an arm with a first inner link arm with a first sheave arranged near the first link arm's outer end, a second, intermediate link arm arranged rotatable adjustable on the first arm and arranged with a second intermediate sheave near the second link arm's outer end, and a third, outer link arm arranged rotatable adjustable on the second, intermediate link arm and arranged with a third sheave near the third, outer link arm's outer end. The second, intermediate link arm's angle is regulated by use of a first actuator arranged between the first, inner link arm and the second link arm. The third, outer link arm's relative angle to the second, intermediate link arm is regulated by a second actuator. Each sheave includes a brake. | 04-04-2013 |
20130187105 | LEVEL WIND ASSEMBLY FOR A WINCH DRUM INCLUDING A TENSIONING ARM - The present invention relates to an improved level wind arm for a winch drum assembly, and a winch drum assembly incorporating such a level wind arm. The level wind arm includes a cross member adapted to bias against an outwardly extending portion of rope, the cross member being concave so that more force is required for the rope spindle associated with the cross member to “climb” the slope of the cross member, causing a momentary pause in motion of the spindle after it reaches the end of wind stroke. This momentary pause allows for rope being wound onto the drum to rise up the end wall of the drum to create a new layer which is aligned and consistent with the layer below, without causing gaps in the rope or other circumstances which could lead to the rope accumulating at any one point, or becoming tangled. The present invention also includes means of ensuring that tension is maintained in the rope, and that the rope does not jump off the reel and, for example, into the clutch mechanism. | 07-25-2013 |
20140021421 | TENSIONING DEVICE - A tensioning device ( | 01-23-2014 |
20140217340 | METHOD FOR INFLUENCING A CABLE WINCH FORCE ACTING ON A CABLE DRIVE AND DEVICE FOR CARRYING OUT A METHOD OF THIS TYPE - A method for influencing a cable winch force acting on a cable drive, comprises the method steps providing a cable drive with a drivable winch and with a cable that can be wound on the winch, providing a device for producing a traction sheave cable force on the cable, determining an outer cable force, predetermining a cable drive operating state, providing a control-regulating unit to influence the traction sheave cable force, producing a control-regulating variable by means of the control-regulating unit depending on the outer cable force and the predetermined cable drive operating state, producing the traction sheave cable force by means of the device and influencing the traction sheave cable force by means of the control-regulating unit in such a way that the cable winch force acting on the cable drive can be controlled depending on the respective cable drive operating state and the outer cable force, wherein the device is a traction sheave drive, wherein a four-quadrant operation of the traction sheave drive is reproduced by means of the control-regulating unit, and wherein the four traction sheave drive operating states are no-load lifting, no-load lowering, load lifting and load lowering. | 08-07-2014 |
20140231731 | GAS SPRING DEVICE, AND BALANCER DEVICE AND ACTUATOR WHICH USE GAS SPRING DEVICE - A gas spring device includes a gas spring which generates a force proportional to a differential pressure between an inner space pressure and an atmospheric pressure, a suction/discharge part which can adjust a gas amount in the gas spring inner space, a rotary body which is connected to the gas spring, to which a torque due to the force generated by the spring is applied, a displacement part which is connected to the rotary body, and is displaced in conjunction with a rotary body rotary movement, a speed change part which is arranged in one of or both of between the rotary body and the displacement part and between the gas spring and the rotary body, and a torque compensating part which sets the torque applied to the rotary body to substantially 0 when the inner space gas amount of the gas spring is at a predetermined value. | 08-21-2014 |
20150034892 | HOIST ROPE GUIDE - A rope guide that includes an arm, a rope-contacting element, and a spring damper. The rope guide is pivotably coupled to the boom of a mining shovel. The combination of the arm, spring damper, and rope-contacting element maintains a nominal tension in the rope, thereby reducing the likelihood of wear and fatigue on the rope. | 02-05-2015 |