A core for winding sheet material is proved. The core comprises a cylindrical tube having a longitudinally oriented slot formed therein, and a strip of soft material located in the slot. Because of the geometry of the slot and the strip, the strip may be softer (less compressed) in the central region but firmer where the core transitions from the relatively soft strip to the relatively hard tube. The leading edge of the sheet material imbeds itself into the soft central region of the strip as additional layers are wound around the core.

A core for winding sheet material is proved. The core comprises a cylindrical tube having a longitudinally oriented slot formed therein, and a strip of soft material located in the slot. Because of the geometry of the slot and the strip, the strip may be softer (less compressed) in the central region but firmer where the core transitions from the relatively soft strip to the relatively hard tube. The leading edge of the sheet material imbeds itself into the soft central region of the strip as additional layers are wound around the core.

A string fastening device which may be used for easily winding and fastening strings provided in shoes, bags, clothes, or the like is provided. The string fastening device includes a base; a fixation member coupled to the base to maintain state in which the bobbin is stored in the base; a rotational member coupled to the fixation member and rotating the bobbin; and a string suspension member provided in the bobbin and fixing a string.

A string fastening device which may be used for easily winding and fastening strings provided in shoes, bags, clothes, or the like is provided. The string fastening device includes a base; a fixation member coupled to the base to maintain state in which the bobbin is stored in the base; a rotational member coupled to the fixation member and rotating the bobbin; and a string suspension member provided in the bobbin and fixing a string.

A reusable, one-piece, rubberized tape protector cover for a roll of tape that fits snugly onto the roll to protect its edges from coming into contact with dirt or moisture that might be on the floor. The device has a spindle of varying widths to accommodate different thicknesses of tape and two parallel side walls that extend outward from the spindle in wheel-like fashion. The device is installed on a roll of tape by compressing one of the two side walls and then pushing the compressed side wall through the hollow center of the roll of tape before releasing it. When released, the side wall resumes its former shape. In this installed position, the spindle is located within the hollow part of the roll of tape and the two parallel side walls extend on either side of the roll of tape and hug the side edges of the tape.

A reusable, one-piece, rubberized tape protector cover for a roll of tape that fits snugly onto the roll to protect its edges from coming into contact with dirt or moisture that might be on the floor. The device has a spindle of varying widths to accommodate different thicknesses of tape and two parallel side walls that extend outward from the spindle in wheel-like fashion. The device is installed on a roll of tape by compressing one of the two side walls and then pushing the compressed side wall through the hollow center of the roll of tape before releasing it. When released, the side wall resumes its former shape. In this installed position, the spindle is located within the hollow part of the roll of tape and the two parallel side walls extend on either side of the roll of tape and hug the side edges of the tape.

An intelligent cable storage drum system for use in a pipe inspection system is disclosed. The system may include a cable storage drum, a video push-cable removably disposed on the cable storage drum, the video push-cable having a proximal end and a distal end, a video camera head having a camera output for providing analog or digital images or video output signals, and a transceiver module operatively coupled to the camera output for receiving the analog or digital images or video output signals and sending the received signals to a remote receiver.

A smart cord reel cable including at least one sensor for measuring cord or cord reel usage, a memory for receiving sensor input to create usage records, and a processor for analyzing the usage records to provide information for maintenance status indication and/or usage analytics.

A smart cord reel cable including at least one sensor for measuring cord or cord reel usage, a memory for receiving sensor input to create usage records, and a processor for analyzing the usage records to provide information for maintenance status indication and/or usage analytics.

The subject invention is a buoyant retractable watercraft safety line comprised of a housing adapted for mounting on a personal watercraft which encloses an internal self-winding and locking line spool assembly.