| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 254333000 | Having pressure element spaced from drum to confine cable thereagainst | 7 |
| 20100207086 | CABLE LIFTING APPARATUS - The invention relates to a cable lifting apparatus for lifting people or loads, including a traction sheave provided with a peripheral groove housing a suspension cable against which rollers apply a pressure in order for the traction sheave to perform the pulling function thereof. The apparatus is designed such that the radial load on the cable is a function of the load to be lifted and of the torque applied by a pinion mounted at the output of the reduction power unit and meshed with a gear wheel integrally connected to, and rotatably concentric with, the traction sheave. The described apparatus allows using a variable number of cables, either by means of the use of a modified sheave provided peripherally with as many grooves as there are cables and having an independent group of pressure rollers for each cable or through the formation of grooves between portions separated by notches made in radial planes between successive portions and having a single group of pressure rollers for all of the cables. | 08-19-2010 |
| 20100314594 | HOIST - Hoists for hoisting loads by means of a cable are in existence for a long period. There are various types of hoists, which include winches and capstans. Generally, the principle of operation of a hoist is based on the cable being driven by adherence of the cable to the drum of the hoist. A hoist is described according to an embodiment of the present invention. The hoist comprises a drum, a plurality of guides, a guide support and a biasing device for displacing a portion of a cable away from the guide when the drum is rotationally displaced to thereby hoist a load. | 12-16-2010 |
| 20110079760 | Lineset Winch with Braking Parts - A winch which can operate with an external brake, or the external brake can be removed to operate with an internal brake. The winch has a cable drum that rotates to get cable on and off the drum. Two eccentric cams are rotated to always keep a soft plastic part pressed against the drum. | 04-07-2011 |
| 20130240810 | WINCH - A winch wherein a rope or cable is self-feeding onto a sheave by a spring that is biased so as to push a rope into contact with a grooved outer surface of the sheave. One end of the spring is pivotally supported on a frame that supports the sheave for rotation about its central axis, while the opposite end of the spring is freely flexible. A supporting block is provided for the free end of the spring to support and minimize or prevent damage to the spring. The block has an angled surface for urging the rope away from the sheave, thus, together with a stripper member, assisting removal of the rope from the sheave at a point at which the rope exits the sheave. | 09-19-2013 |
| 20130306923 | PORTABLE POWERED ROPE CLIMBING DEVICE AND METHOD THEREOF - The invention relates to a portable powered rope climbing device, which can carry persons and objects to ascend or descend along a climbing rope, and ensure controllable speed. The invention comprises a battery pack, an electromagnetic brake direct current motor, an output shaft of the said motor is connected with an input shaft of a reducer. An output shaft of the reducer and the input shaft of the reducer are arranged in a 90-degree manner. A driving rope pulley is fixed to the output shaft of the reducer. A climbing rope is wound inside the driving rope pulley. A warping brake rope-pressing pulley block and rope-pressing pulleys tightly press the climbing rope. The climbing rope is wound between the driving rope pulley and a reversing rope pulley and is led out of the driving rope pulley. A speed control module is connected with the said motor. | 11-21-2013 |
| 20140014887 | GOOD-GRIP WINCH FOR HANDLING LOADS - A friction grip hoist ( | 01-16-2014 |
| 20140183428 | Hoist Spooling Assembly and Methods of Using Same - A hoist spooling assembly for spooling a cable about a drum while preventing relative movement between the cable and the drum. The hoist spooling assembly evenly delivers force from a roller to the cable while reducing the incidence of spooling problems, including mechanical wear of the cable and formation of loops and kinks in the cable. | 07-03-2014 |
