| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 254362000 | Drive includes electric motor | 20 |
| 20090045382 | Water well serving system - A system for servicing a water well including a well pipe having a pump and a motor at a bottom thereof. The well head has a platform to support a winch thereon. Also supported on the platform is an upstanding mast having a return wheel at a top thereof. One end of a cable is attached to the winch and another end is attached to a top of the well pipe after having been trained over the return wheel at the top of the mast. Activating the motor on the winch will pull the well pipe from the deep well including the pump and the motor. | 02-19-2009 |
| 20090127528 | LOAD CONTROL POWER TRANSMISSION - The present invention is a transmission used with a winch drum. The transmission includes a drive shaft, an output shaft, a hydraulic or pneumatic system, a cooling system, a gear coaxially mounted on the output shaft, and an electric motor for powering the gear. The drive shaft is adapted to drive the winch drum and includes a clutch disc extending generally radially outwards from the drive shaft. The clutch disc has a face. The output shaft coaxially surrounds at least a portion of the drive shaft and includes a friction surface extending generally radially inward. The friction surface has a face opposing the face of the clutch disc. The hydraulic or pneumatic system is adapted to bring the faces into contact, and the cooling system is adapted to remove heat from the friction surface via a fluid coolant. | 05-21-2009 |
| 20090173924 | HOIST WITH DETACHABLE POWER AND CONTROL UNIT - A hoist is powered by a separate power unit. The hoist unit includes: a motor, a mounting connector, a spool, webbing, auto cut-off and a first portion of a mating electrical connector. The control unit includes a hollow pole, a hook, a second portion of the mating electrical connector, a control switch, electrical circuitry and a battery pack. | 07-09-2009 |
| 20100187488 | Boat lift drive - A boat lift drive for connection to a winch having a winch shaft. The boat lift drive includes a power unit, a drive train engaged to and being driven by the power unit, and a drive shaft engaged to and being driven by the drive train. The drive shaft in turn is engaged to and drives the winch shaft. The drive shaft includes an interior threaded opening that engages a threaded end of the winch shaft to directly connect the drive shaft to the winch shaft. The drive shaft is further engaged to the winch shaft via a pin that extends through the drive shaft and is threaded into the winch shaft. | 07-29-2010 |
| 20100237306 | Hoist with Overspeed Protection - A hoist system with an overspeed detection sub-system for detecting overspeed by comparing an actual drum assembly speed with a target value. For example, the rotation of a motor may be determined by a first rotary encoder and the rotation of a drum may be determined by a second rotary encoder. The output of the first rotary encoder (the basis of a target value) is compared with the output of the second rotary encoder (corresponding to actual motion of the drum). If the difference between the target value and the actual motion is too large, then a problem, such as a broken hoist hardware component may exist, and appropriate remedial action is taken, such as braking the motor and/or the drum. | 09-23-2010 |
| 20110260127 | Tree mounted hoist - The inventive concept involves a tree mounted hoist that can be attached to a tree at any desired height. The tree hoist consists of a support platform that has an electric motor therein. The other direction of the support platform has a plate that has serrated teeth thereon that will dig into a tree when forced thereat. The support platform has an upstanding frame thereon and the ends of the upstanding frame each have a locking sleeve thereon. The locking sleeve each receive the end of a flexible cable that surrounds the tree and when tightened around the tree stabilizes the support platform on the tree. The support platform has a forward extension thereon that has a cable pulley at its forward ends over which a hoist cable is trained which hoist cable connects to a winch which is operated by the motor. The electric motor is a 12 Volt vehicle starter motor which can be operated by a remote switch. The battery for operating the electric motor is located in a remote location, possibly, the battery of an attending vehicle. | 10-27-2011 |
| 20110309315 | TWO SPEED DIRECT DRIVE DRAWWORKS - A direct drive drawworks has a permanent magnet motor with a first set of windings and a second set of windings, a shaft extending from the permanent magnet motor such that the permanent magnet motor directly rotates the shaft, a drum connected to the shaft away from the permanent magnet motor such that the rotation of the shaft causes a corresponding rotation of the drum, and a switch cooperative with the first set of windings and the second set of windings so as to cause the sets of windings to be selectively connected in parallel or in series. | 12-22-2011 |
| 20120056140 | Concrete sidewalk slab lifter - A concrete sidewalk section raising apparatus is provided for pivoti-lifting one side thereof to permit leveling of the ground beneath without the necessity of destroying the concrete section, and to permit it to be lowered intact once the underlying ground is properly leveled. An A-frame support stand supports a motorized winch and cable to raise one side to about 45° from the vertical. | 03-08-2012 |
| 20120056141 | HINGED SPORTS POST OR GOAL POST RAISING AND LOWERING DEVICE - A device for raising and lowering a hinged sports post or goal post is provided. The device includes a frame with a ground engaging member and an upwardly extending post. Wheels are connected to a medial portion of the frame, and the wheels are adapted to be out of ground contact when the ground engaging member is in an operating position. A winch it is connected on an opposite end of the frame from the ground engaging member. A controller is connected to the winch and is operable by a user in order to raise or lower the hinged post that is connected to the winch cable. | 03-08-2012 |
| 20120126190 | WINCH APPARATUS - A winch assembly includes a base and a housing operatively connected to the base. The housing includes a rotatably movable drum configured to extend/retract cable with respect to the housing at a zero fleet angle, a motor for rotatably moving the drum and a controller for controlling the motor. At least one of the base and the housing includes a rotation device permitting independent rotational movement between the base and the housing about at least two axes. | 05-24-2012 |
| 20120319065 | Gambrel Device - A gambrel device includes a gambrel frame of a generally tri-angular shaped plate construction of steel or similar strength material that includes a top apex, oppositely disposed base apexes and a substantially flat back surface. A winch is mounted to a front surface of the gambrel frame and includes an electric motor and a winch drum operatively connected to the electric motor for driving the winch drum. A rigging cable extends from the winch drum and is threaded through an eyelet disposed at the top apex of the gambrel frame. The rigging cable may be secured to an existing structure and the winch is operated to hoist and suspend the gambrel frame from the structure. Further, the gambrel device may be utilized as a skid to relocate an animal by dragging the animal across a ground surface. | 12-20-2012 |
| 20130048929 | Battery Powered Winch - A portable winch assembly includes a winch mechanism connected to a support structure adapted to be manually transportable. A battery pack is releasably coupled to a remote control unit. The remote control unit is operated to control the winch mechanism. The battery pack and the remote control unit can be electrically connected to the winch mechanism by a flexible power cable, or the battery pack can be mounted with the winch mechanism and a wireless remote control unit can be used to operate the winch mechanism. | 02-28-2013 |
| 20130207059 | Storage Lift - An assembly for lifting and storing an ice house or other item is herein disclosed. The assembly comprises a base and a plurality of horizontal brace members rigidly connected to one another. The assembly further comprises an electric winch mounted to the base and a plurality of rollers and pulleys. The rollers are rotatably attached to the base and the pulleys are connected to the horizontal brace members. The assembly includes at least one cable that is routed from the electric winch, past the roller and over the pulley. The cable is attached to the ice house. The ice house is lifted and suspended from a ceiling or an assembly of overhead beams via the electric winch. | 08-15-2013 |
| 20130313496 | Multi-Functional Electric Winch - The disclosure provides a multi-functional electric winch that includes an electric motor, a winch and functional units. A first connection member is mounted to each functional unit and a second connection member is mounted to an end of electric motor. The first connection member has connection openings sequentially arranged in a circumferential direction of an input shaft of the functional unit, while the second connection member has projections that are able to be inserted into the connection openings and engaged therein by screwing. The connection openings includes first portions for the projections to be inserted, and second portions for seating and limiting the projections in axial and circumferential direction, wherein the first portions communicate with the second portions. The input shaft of each functional unit is provided with a hole, to which a rotatable shaft of the electric motor is connectable and which has a cross section of polygon. | 11-28-2013 |
| 20130341578 | Line Hauler with Dualler Plate and Line Coiler - An improved line hauler is provided that has a dualler plate located between the two plates of the sheave. The dualler plate creates two V-channels for the line and the line therefore can be directed on a path that results in a hands free line hauler that is slip free. A line coiler is also provided that promotes coiling of the line as it drops to the boat deck. | 12-26-2013 |
| 20140131646 | Self-Braking Motor - There is described a self-braking motor that comprises a stator, a plurality of permanent magnets and magnetic hysteresis material. The permanent magnets are disposed concentrically between the stator and the magnetic hysteresis material and an air gap is provided between the magnetic hysteresis material and the permanent magnets. The self-braking motor has a first configuration, where the magnetic hysteresis material rotates with the permanent magnets, and a second configuration, where the magnetic hysteresis material is restricted from rotating with the permanent magnets. | 05-15-2014 |
| 20150090946 | VARIABLE SPEED CHAIN HOIST WITH INTEGRATED CONTROL - A variable speed chain hoist has the variable speed control integrated into the housing of the chain hoist and a user control for varying the speed of the hoist that is integrated into the pendant controller. The speed control may include an inverter connected to the motor of the hoist. The user speed control may include a rotary knob or a slider connected to a potentiometer and integrated into the pendant control to vary a voltage signal supplied to the inverter. | 04-02-2015 |
| 20150123057 | WINCH WITH DRUM-ENCASED BRUSHLESS DC MOTOR - A winch having a brushless DC motor, the brushless DC motor having a fixed, non-rotating shaft and a rotating housing; and a rotating drum mounted to the rotating housing, wherein the rotating housing is fully encased within the rotating drum. | 05-07-2015 |
| 20150123058 | SAFETY ARRANGEMENT FOR A PORTABLE POWER DRIVEN SYSTEM - The present invention relates to a safety arrangement for a portable power driven system, such as an ascender/descender arrangement, specifically in relation to safety means for minimizing risks with items rotating during the operation of the power driven system. | 05-07-2015 |
| 20180022588 | BRAKE FAILURE IN VARIABLE FREQUENCY DRIVE MOTORS | 01-25-2018 |
