Abstract: An actuating and sensing module is disclosed and includes a bottom plate, a gas pressure sensor, a thin gas transportation device and a cover plate. The bottom plate includes a pressure relief orifice, a discharging orifice and a communication orifice. The gas pressure sensor is disposed on the bottom plate and seals the communication orifice. The thin gas transportation device is disposed on the bottom plate and seals the pressure relief orifice and the discharging orifice. The cover plate is disposed on the bottom plate and covers the gas pressure sensor and the thin gas-transportation device. The cover plate includes an intake orifice. The thin gas transportation device is driven to inhale gas through the intake orifice, the gas is then discharged through the discharging orifice by the thin gas transportation device, and a pressure change of the gas is sensed by the gas pressure sensor.

Abstract: A laser engraving mechanism (100) for engraving a workpiece (16) includes an image receiver (12), an image processor (13), an engraving controller (14), and a laser emitting member (15). The image receiver screens the workpiece to form an image of the workpiece and transforms the image of the workpiece into electronic image signals. The image processor is connected to the image receiver. The image processor saves a group of datum coordinates, forms a group of engraving coordinates according to the electronic image signals, and compares the engraving coordinates with the datum coordinates. The engraving controller is connected to the image processor. The laser emitting member is connected to the engraving controller, and the engraving controller instructs the laser emitting member to engrave the workpiece based on a comparison of results between the engraving coordinates and the datum coordinates.

Abstract: A rack apparatus (100) includes a frame (10), a plurality of supporting members (106), and a plurality of retaining members (12). The supporting members are arranged/mounted on/to the frame. The retaining members are mounted on the supporting members. Each retaining member includes a fixing piece (120) and two supporting pieces (122, 124). The fixing piece has a notched mounting portion. The two supporting pieces are respectively positioned at an opposite side of the fixing piece. Each supporting piece forms a retaining portion (i.e., a through hole therein). The notched mounting portion and the retaining portions together help retain a workpiece within a given retaining member.

Abstract: A laser engraving mechanism (100) for engraving a workpiece (16) includes an image receiver (12), an image processor (13), an engraving controller (14), and a laser emitting member (15). The image receiver screens the workpiece to form an image of the workpiece and transforms the image of the workpiece into electronic image signals. The image processor is connected to the image receiver. The image processor saves a group of datum coordinates, forms a group of engraving coordinates according to the electronic image signals, and compares the engraving coordinates with the datum coordinates. The engraving controller is connected to the image processor. The laser emitting member is connected to the engraving controller, and the engraving controller instructs the laser emitting member to engrave the workpiece based on a comparison of results between the engraving coordinates and the datum coordinates.

Abstract: A housing (10) used in portable electronic devices includes gripping portions (40) defined thereon, such gripping portions being bounded by grooving created in a surface of the housing. A method of manufacturing the housing is also provided, the method includes these steps: forming a housing; grinding the housing; polishing the housing; and forming the gripping portions on the housing.

Abstract: A rack apparatus (100) includes a frame (10), a plurality of supporting members (106), and a plurality of retaining members (12). The supporting members are arranged/mounted on/to the frame. The retaining members are mounted on the supporting members. Each retaining member includes a fixing piece (120) and two supporting pieces (122, 124). The fixing piece has a notched mounting portion. The two supporting pieces are respectively positioned at an opposite side of the fixing piece. Each supporting piece forms a retaining portion (i.e., a through hole therein). The notched mounting portion and the retaining portions together help retain a workpiece within a given retaining member.

Abstract: A mechanical engraver (10) includes a rotating plate (11), a first cutting tool (12), and a second cutting tool (13). The rotating plate has a rotating axis. The first cutting tool is mounted on the rotating plate and includes a first knifepoint (1221). The second cutting tool is mounted on the rotating plate and includes a second knifepoint (1321). A distance between the first knifepoint and the rotating axis is longer than a distance between the second knifepoint and the rotating axis. A distance between the first knifepoint and a bottom of the rotating plate is shorter than a distance between the second knifepoint and the bottom of the rotating plate. The first cutting tool includes a straight first cutting edge (1222). The second cutting tool includes a second cutting edge (1322) and a third cutting edge (1323), forming, at the second knifepoint, a cutting angle ? less than 180°.

Abstract: A method for manufacturing a metallic shell (100) from a base shell made of metal is provided. The metallic shell includes an grippable portion (12). The method includes six steps, as follows. The base shell is formed (S1). The base shell is ground (S2) and burnished (S3) and then washed and cleaned (S4). The grippable portion of the metallic shell is engraved (S5) to yield a texture approximating a wood grain. Finally, the base shell is anodically treated (S6).

Abstract: A method of modifying a polymeric substrate, such as polyethylene terephthalate and nylon 66, imparts water repellency and lubricity, and provides the additional benefit of reducing the soiling of fabrics. The method includes combining the polymeric substrate with a dense or liquified gas, such as carbon dioxide or sulfur hexafluoride, and a fluorinated compound, such as a fluorinated polyether.