Abstract: A cooling apparatus, system, and method are provided. The cooling apparatus includes at least one printed circuit board having opposed major surfaces, and at least one electrical component or other heat source positioned on one major surface of the printed circuit board. The cooling apparatus also includes a pulsating heat pipe having at least a portion that is positioned to either extend along and proximate to one of the major surfaces or be embedded within the printed circuit board. As such, the pulsating heat pipe is capable of transferring heat from the printed circuit board.

Abstract: A method for forming a multi-colored cap part of a snap button including the steps of forming a design portion of the cap part of snap button using a first group of molds, which includes a first female mold, a first male mold, and a plate-shaped middle mold, and a slide-plate mold adapted to movably assembled to the first male mold and having a plurality of mold cavities for forming the design portion; removing the slide-plate mold having the design portion molded therein from the first male mold; movably positioning the slide-plate mold into a second female mold included in a second group of molds for forming a body portion of the cap part of snap button; positioning a post for the cap part of snap button in a second male mold of the second group of molds; and forming the body portion.

Abstract: A heat pipe is partially-filled with a liquid, such as water, and is used to transfer heat from a rotating element, such as a rotor, via phase change and internal recycle of the liquid. Several heat pipes may be disposed radially around the rotating axis of the rotating element. The heat pipes may have a curved inner surface with a curvature not corresponding to the central axis of the heat pipe and positioned opposite the rotating axis so to experience greater centrifugal forces, to advance formation of a liquid film to improve heat transfer. For a rotor, the heat pipes, though individually placed as revolving heat pipes, in total exhibit behavior that approximates the favorable heat-transfer behavior of a single larger rotating heat pipe, but with heat-transfer surface area dispersed throughout the rotor, and without compromising structural integrity of the rotor shaft.

Abstract: A method for forming a multi-colored cap part of snap button includes the steps of forming a design portion of the cap part of snap button using a first group of molds, which includes a first female mold, a first male mold, and a plate-shaped middle mold, and a slide-plate mold adapted to movably assembled to the first male mold and having a plurality of mold cavities for forming the design portion; removing the slide-plate mold having the design portion molded therein from the first male mold; movably positioning the slide-plate mold into a second female mold included in a second group of molds for forming a body portion of the cap part of snap button; positioning a post for the cap part of snap button in a second male mold of the second group of molds; and forming the body portion while associating it with the design portion through injection molding to produce a complete molded cap part of snap button.