Abstract: A shaft-mounted overhead door operator is disclosed having a motor, a torque transfer component such as a gear train, and a clutch that is axially movable to engage or disengage the clutch. While the door operator has power, the clutch is engaged to ensure door operator can raise, lower, and stop the overhead door as directed from a remote control. The clutch can be released in the event of a loss of power or by direction from the remote control in which case the clutch releases the shaft of the overhead door. The shaft-mounted overhead door is small, having a width no greater than three times the diameter of the shaft to which it is mounted.

Abstract: A fairlead for use with a winch is disclosed. The fairlead includes: a device for detecting a speed at which a line is being spooled or unspooled from the winch, a first and second roller adapted to aid in spooling or unspooling a line, a fairlead motor for driving at least the first roller, and a controller connected to the fairlead motor. The controller is in communication with the device for detecting the speed. The controller is configured to direct the fairlead motor to drive at least the first roller at a speed that maintains tension on the line as it is unspooling or spooling. Alternatively, the device measures current drawn by the fairlead motor and the controller directs the fairlead motor to drive the rollers at a speed that maintains a target current draw.

Abstract: Systems and methods for operating an overhead door opener and a lifter are disclosed. The lifter is positioned above the overhead door when the overhead door is in a retracted position and raises and lowers objects along a path that, without care, will intersect with the overhead door. A controller monitors the position of the overhead door and the lifter and moves the overhead door if the lifter is out of the way, and if the lifter is not out of the way the command is not executed to prevent interference between the lifter and the overhead door.

Abstract: A shaft-mounted overhead door operator is disclosed having a motor, a torque transfer component such as a gear train, and a clutch that is axially movable to engage or disengage the clutch. While the door operator has power, the clutch is engaged to ensure door operator can raise, lower, and stop the overhead door as directed from a remote control. The clutch can be released in the event of a loss of power or by direction from the remote control in which case the clutch releases the shaft of the overhead door. The shaft-mounted overhead door is small, having a width no greater than three times the diameter of the shaft to which it is mounted.

Abstract: Systems and methods for operating an overhead door opener and a lifter are disclosed. The lifter is positioned above the overhead door when the overhead door is in a retracted position and raises and lowers objects along a path that, without care, will intersect with the overhead door. A controller monitors the position of the overhead door and the lifter and moves the overhead door if the lifter is out of the way, and if the lifter is not out of the way the command is not executed to prevent interference between the lifter and the overhead door.

Abstract: A fairlead for use with a winch is disclosed. The fairlead is made up of a first and second roller, a motor, a sensor, and a controller. The rollers are adapted to aid in spooling or unspooling a line. The motor drives at least the first roller. The sensor determines whether a winch drum is spooling or unspooling a line. The controller is connected to the motor and communicates with the sensor. The sensor determines whether the winch drum is spooling or unspooling the line. The controller is configured to direct the motor so that the rollers assist in unspooling or spooling the line in coordination with the winch drum. In some embodiments, the fairlead is integrated into the winch.

Abstract: A vehicle winch mechanism includes a drum, a motor and transmission, at least one drum and motor side support, at least one battery, and a motive trickle charge mechanism. The drum pays out and takes in a line. The motor and transmission drive the drum. The side supports couple the drum, the motor, or both to the vehicle. The battery provides power to the motor. The motive trickle charge mechanism charges the battery. In one embodiment, the motive trickle charge mechanism includes a permanent magnet, an enclosure housing the magnet, and two or more sets of conductive coils wrapped around the enclosure and electrically coupled to the battery. The enclosure houses the magnet such that the magnet freely moves and changes orientation within the enclosure. The coils of an individual set of coils are aligned along parallel planes, and the coils of separate sets are aligned along intersecting planes.

Abstract: A winch assembly including a mount attachable to a vehicle, and a guide attached to the mount; including a winch having a drum for winding and unwinding a line, and a motor for driving the drum about a winding axis, wherein the drum has a helical groove for receiving the line as it is wound. A frame connects to the first and second end of the drum and is adapted to move relative to the guide so as to synchronize movement of the drum along the winding axis so that the line is aligned with the helical groove during winding and unwinding. A rod is attached to the frame and generally parallel to the winding axis, and passes through a hole in the guide, allowing the movement of the drum along the winding axis but preventing the frame from rotating about the winding axis is disclosed.

Abstract: Devices, systems, and methods for varying rotational speeds is disclosed. A battery pack has a plurality of batteries and a switch. The battery pack has an overall voltage. The switch varies the overall voltage in discrete steps by combining the plurality of batteries in series, in parallel, or in a combination thereof. A motor drives a shaft at a rotational speed. The motor is powered by the battery pack. The rotational speed varies proportionally with the overall voltage.

Abstract: A detachable line guide is disclosed. A screw with a helical groove between threads is provided. A guide is positioned a fixed distance perpendicular to the screw and can travel laterally freely. A follower mount is detachably affixed to the guide. The follower mount has a follower that is biased into the groove. Rotation of the screw causes the follower to track the groove and move the follower mount laterally. The guide is configured for a line to pass therethrough. When the line exerts a lateral force above a predetermined threshold against the guide, the guide and the follower mount detach.

Abstract: A gear-shifting device includes a first motor having a first stator. The first stator turns clockwise and counter-clockwise, creating a wobbling action. The device further includes a compound planetary transmission, made up of a transmission ring attached to a ring gear. The compound planetary transmission receives power from the first stator. A second motor having a second stator, turns clockwise and counter-clockwise. The device further includes a shift assembly, made up of a drum, a cap, and a pinion gear. The pinion gear receives power from the second stator. The drum locks with the pinion gear such that the drum rotates with the pinion gear. The transmission ring is attached to the drum, such that the transmission ring moves laterally as the drum rotates. The ring gear locks and unlocks with the cap as the drum rotates. The wobbling action enables the locking.

Abstract: A winch assembly including a mount attachable to a vehicle, and a guide attached to the mount; including a winch having a drum for winding and unwinding a line, and a motor for driving the drum about a winding axis, wherein the drum has a helical groove for receiving the line as it is wound. A frame connects to the first and second end of the drum and is adapted to move relative to the guide so as to synchronize movement of the drum along the winding axis so that the line is aligned with the helical groove during winding and unwinding. A rod is attached to the frame and generally parallel to the winding axis, and passes through a hole in the guide, allowing the movement of the drum along the winding axis but preventing the frame from rotating about the winding axis is disclosed.

Abstract: A device and method for retaining a line on a drum is disclosed. The drum has a slot which extends from a point along the periphery and into the drum in a first direction and at an acute angle relative to a tangent at the point. A clamp is provided with a slot portion and a line retaining portion. The slot portion is engaged with the slot such that relative movement between the clamp and the drum causes the slot portion to move in the first direction. As tension is applied to the line, a first force is created on the slot member in the first direction, resulting in a second force being applied by the line retaining portion in the first direction, clamping the portion of the line against the drum.

Abstract: A dual-screw line guide is disclosed. A first screw has a first helical groove. A second screw has a second helical groove. The first helical groove and the second helical groove align, thereby forming a groove space, as the first screw and the second screw rotate in opposing radial directions. The groove space is configured for a line to pass therethrough.

Abstract: A fairlead for use with a winch is disclosed. The fairlead includes: a self-reversing screw; a motor for driving the self-reversing screw; and a guide comprising a guide nut and a first guide side and a second guide side. The guide is driven by the self-reversing screw. As a line is coiled onto a winch drum the guide directs the line onto the winch drum. The first guide side and second guide side are detachable from the guide nut and from each other.

Abstract: A detachable line guide is provided. A screw with a helical groove is provided. A guide is positioned a fixed distance perpendicular to the screw and can travel laterally freely. The guide includes a follower which is attached to the guide by a spring. The follower is biased into the groove. Rotation of the screw causes the follower to track the groove and move the guide laterally. The guide is configured for a line to pass therethrough. When the line exerts a lateral force above a predetermined threshold against the guide, the follower rides up and out of the groove as the spring is compressed.

Abstract: A fairlead for use with a winch is disclosed. The fairlead includes: a self-reversing screw; a motor for driving the self-reversing screw; and a guide comprising a guide nut and a first guide side and a second guide side. The guide is driven by the self-reversing screw. As a line is coiled onto a winch drum the guide directs the line onto the winch drum. The first guide side and second guide side are detachable from the guide nut and from each other.

Abstract: A fairlead for use with a winch is disclosed. The fairlead includes: a device for detecting a speed at which a line is being spooled or unspooled from the winch, a first and second roller adapted to aid in spooling or unspooling a line, a fairlead motor for driving at least the first roller, and a controller connected to the fairlead motor. The controller is in communication with the device for detecting the speed. The controller is configured to direct the fairlead motor to drive at least the first roller at a speed that maintains tension on the line as it is unspooling or spooling. Alternatively, the device measures current drawn by the fairlead motor and the controller directs the fairlead motor to drive the rollers at a speed that maintains a target current draw.

Abstract: An overhead mounting system is disclosed. The mounting system includes an overhead channel with a plurality of openings in the base for attaching to a surface, such as a ceiling or trusses, along with a plurality of openings in the channel walls for securing components. The system is configured to accommodate attachment for multiple and diverse components, which have different dimensions, masses, pulling forces, or power requirements.

Abstract: The invention is an extendable winch assembly, that include a winch, having a drum for winding and unwinding a line and a first motor for driving the drum about a winding axis. The assembly also includes a winch mount for mounting the winch to a vehicle, the winch mount. The winch mount includes a base attached to the vehicle and extendable arm attached at one end to the base, wherein the extendable arm is configured to move the winch from a retracted position proximate the vehicle to an extended position spaced from the vehicle. The winch mount also includes a plate attached at an other end of the extendable arm, wherein the winch is attached to the plate in such a way as to allow the winch to pivot about a pivot axis perpendicular to the winding axis.