Devices, systems, and methods for determining gas characteristics to monitor transformer operation include extracting gas from transformer fluid for analysis.

A mandrel with a compensating segment, gripper bar, and external body segment making up a key piece configuration. The configuration adjusting the travel path of metal sheet being wound around the mandrel. The metal sheet thereby being wound without resulting imperfections which occur naturally when wrapping material around a cylinder.

An apparatus for securing and clamping thread to a bobbin is disclosed. The invention provides for a bobbin storage clamp having two clamp ends separated by a minimal distance but not in direct contact. The bobbin clamp includes two ears for separating the clamp ends when opposite lateral force is applied to the ears. The bobbin clamp and two ears comprise a single piece construction using minimal materials to create a cost efficient, lightweight, and easy to construct bobbin storage clamp.

A substrate case includes a shaft portion around which a sheet-shaped substrate having a circuit area in which a circuit manufacturing process is performed is wound; and a cover portion that accommodates the substrate in the state of being wound around the shaft portion, the shaft portion having a holding portion that holds an area different from the circuit area at a winding start portion of the substrate.

A winding apparatus that can restrain a medium from being wound unevenly when a long medium is wound around a winding roller and a printing apparatus that includes the winding apparatus are provided. A winding apparatus includes a winding section that has a winding roller rotatably supported therein and winds a long medium around the winding roller. The winding section also has a pressing portion that presses the medium toward the winding roller.

Devices, systems, and methods for determining gas characteristics to monitor transformer operation include extracting gas from transformer fluid for analysis.

A dispenser for holding a spool of coiled material utilizes a spindle having shoulder members at its ends respectively, and an elastic or resilient line extending between the shoulder members. The line traverses the outermost convolution of the coiled material, to resist free unwinding movement thereof. One of shoulder members is removable, to allow for insertion of a filled spool onto the spindle, for controlled dispensing of the coiled material. Simplicity in construction is realizable, along with compensation for gradual depletion of the coiled material as it is used up.

A substrate case includes a shaft portion around which a sheet-shaped substrate having a circuit area in which a circuit manufacturing process is performed is wound; and a cover portion that accommodates the substrate in the state of being wound around the shaft portion, the shaft portion having a holding portion that holds an area different from the circuit area at a winding start portion of the substrate.

The present invention sets out to provide an improved way to retain an amount of wound fishing line and the loose end of the wound fishing line to the spool that the fishing line is wound upon. The fishing line retention device comprising of a main circular band having an internal wall, an outer wall and at least one grip tab. The fishing line retention device accurately and tightly holds pressure on the loose end of the fishing line against the spool. The fishing line retention device protects the fishing line from harmful environmental conditions such as wind, water, dirt, sharp objects and UV light.

A reel system may receive a leading edge of a flexible buoyant pad. The flexible buoyant pad may have a use configuration having a first outer vertical envelope and a storage configuration having a second outer vertical envelope that is smaller than the first outer vertical envelope. The reel system may comprise at least one base member, an arm rotatably coupled to the base member and a rotatable axle coupled to the arm. The rotatable axle may be rotatable relative to the arm and the rotatable axle may adapted to receive the flexible buoyant pad and support the flexible buoyant pad in the storage configuration. Further, an actuatable input may supported by the arm. The actuatable input may be configured to rotate the rotatable axle relative to the arm.