The invention is a collapsible cord wrapping device for clipping onto the cords of earbuds or similar devices when in use, which device can be unfolded for use as a cord wrapping base during earbud storage to prevent tangling.

A take-up device for a curtain includes a pull-cord, a reel mounted to a top beam of the curtain, an actuating mechanism for actuating the reel to rotate to retract or release the pull-cord, and a braking mechanism for braking the pull-cord. The reel defines a winding groove and an actuating slot. The actuating mechanism is a flat spiral-spring assembly. The flat spiral spring assembly includes a wheel arranged in parallel with the reel and a flat spiral-spring. An end of a reed of the flat spiral-spring is wrapped around the wheel, and an opposite end of the reed is fixed in the actuating slot. The top end of the pull-cord is wound on the winding groove, and an opposite end of the pull-cord extends out of the winding groove, extends through the braking mechanism, and then is fixed to a curtain body of the curtain.

Described herein is a portable cleaning system comprising a reel around which one or more elongated flexible machine components such as roller chains may be wound to withdraw them from a machine, and means to clean and sanitize the components while they are supported on the reel. The reel may be rotatably supported on a cart. The apparatus further includes an enclosure for the reel, and means for introducing a fluid such as steam into the enclosure to clean and sanitize the components.

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.

A window covering system comprises a shell, a weight member, a covering material positioned between the shell and the weight member, a control device. The covering material comprises at least one ladder, multiple slats corresponding to the at least one ladder, and at least one lifting cord, wherein the lifting cord is connected between the shell and the weight member. The control device comprises a driving module, a releasing module, and an operation module that are connected to each other. The ladder is connected to the operation module, and the lifting cord is connected to the driving module, such that the operation module drives the ladder to tilt the slats, at the same time, the releasing module is driven by the operation module to remove restriction to the driving module, hence descending the weight member.

An earphone case includes a shell, a rotating drum received in the shell, a driving assembly coupled to the rotating drum and configured for rotating the rotating drum, and a back cover latchable with the shell and receiving the driving assembly in a receiving space defined therein. The rotating drum is driven by the driving assembly to rotate to wind a wire of at least one pair of earphones.

Example dynamically adjustable tether systems are described herein. An example tether system for use with an unmanned aerial vehicle (UAV) may include a base and a vertically-oriented elongate structure having an adjustable height. For instance, the elongate structure may include a lower end, and an upper end. The elongate structure may also couple to the base proximate the lower end. The system may further include a tether that extends from a first coupling-point positioned proximate the upper end of the elongate structure to a second coupling-point positioned on the UAV and a computing system configured for performing a set of acts, such as detecting a change in height of the elongate structure, and causing the tether to be reconfigured within the tether system based on the detected change in height of the elongate structure.

A flexible pipe containment sled includes a platform and a first sled portion coupled to a bottom surface of the platform. The first sled portion is disposed at a first side of the platform. The sled also includes a second sled portion coupled to the bottom surface of the platform. The second sled portion is disposed at a second side of the platform opposite to the first side of the platform. The sled also includes a passage formed between the first and second sled portions. The passage is configured to allow a flexible pipe to pass through the passage while the flexible pipe containment sled is placed on a surface.

A flexible pipe containment sled includes a platform and a first sled portion coupled to a bottom surface of the platform. The first sled portion is disposed at a first side of the platform. The sled also includes a second sled portion coupled to the bottom surface of the platform. The second sled portion is disposed at a second side of the platform opposite to the first side of the platform. The sled also includes a passage formed between the first and second sled portions. The passage is configured to allow a flexible pipe to pass through the passage while the flexible pipe containment sled is placed on a surface.

A hose-reeling apparatus includes a base unit, a support unit, a joint unit and a reel unit. The base unit includes two casters provided thereon. The support unit includes a hollow post supported on the base unit and a sleeve provided on the hollow post. The joint unit includes a lower joint connected to the hollow post, a tubular plug inserted in an upper end of the hollow post, and an upper joint comprising a lower portion inserted in the tubular plug and an upper portion inserted in the shell. The reel unit includes a shell, a hollow reel, a crank, an outlet joint, a track, a driving rod, a sliding element, a transmission unit, a lower tube, and an upper tube.