Abstract: A brake device for a power tool has a brake assembly, a bearing portion, a pinion and a gearbox. The brake assembly includes a brake base, a cover, a first throttle cable, a second throttle cable, a brake-activating block, a brake-guiding pillar, a brake band and a brake drum. The first throttle cable, the brake-activating block and the second throttle cable are linearly connected together in series. The brake-activating block is designed to abut against the brake-guiding pillar in a brake position and a release position, respectively. With the relative movement among the first throttle cable, the brake-activating block and the brake-guiding pillar, the abutting or separating state between the brake band and the brake drum can be easily controlled.

Abstract: An engine starting device includes a starting unit, a clutch unit and a transmission unit, all of the three units being installed on the same axle. The starting unit and the clutch unit are connected with each other by friction therebetween and the friction is applied only when the starting unit is operated in desired direction so that the starting unit and the clutch unit are co-rotated. The clutch unit is connected to the transmission unit so that the power can be directly transferred to the transmission unit. The device employs the pressure of the engine to compress the coil spring which generates a force to accelerate the speed of the engine such that the user can easily start the engine.

Abstract: A device for heightening engine efficiency is provided with a heat-insulating seat of engine having a plurality of air inlets communicable with oil-gas inlets. The air inlets are provided with a valve, and the heat-insulating seat is provided with a cam mechanism, which is connected to a carburetor control device by means of an operation piece. When the carburetor is operated to drive the cam mechanism to open the valve such that fresh air is allowed to enter into the engine, and the combustion efficiency can be thus heightened. As soon as the accelerator is stopped, the valve is closed automatically.

Abstract: A system of providing a dynamic selection menu is provided. An input/output device receives a first fragment comprising a portion of a desired entry. A processor identifies and rearranges a first subset of entries, and identifying a first entry in the first subset. A display device displays the rearranged first subset of entries with the first entry highlighted.

Abstract: A method for fast activation and playing of multimedia data with a non-fixed data storage media, such as compact disk, is provided. The storage media, pre-installed with an operating system, is used to activate the computer. Then the media player connected to the computer is detected, and a device driver for the detected media player and a corresponding media playing application in the storage media are executed. The process further includes establishing a RAM disk area in the RAM of the computer for the space required by executing the operating system, device driver for the media player, and the media playing application programs.

Abstract: A method of forming a silicon oxide, shallow trench isolation (STI) region, featuring a silicon rich, silicon oxide layer used to protect the STI region from a subsequent wet etch procedure, has been developed. The method features depositing a silicon oxide layer via PECVD procedures, without RF bias, using a high silane to oxygen ratio, resulting in a silicon rich, silicon oxide layer, located surrounding the STI region. The low etch rate of the silicon rich, silicon oxide layer, protect the silicon oxide STI region from buffered hydrofluoric wet etch procedures, used for removal of a dioxide pad layer.

Abstract: A PGA connector includes: a shuttle plate slidably engageable on a socket base having a plurality of sockets recessed in the base, and a plurality of contact elements each contact element embedded in each socket in the socket base, the shuttle plate integrally formed with at least one resilient lever on a side plate portion longitudinally formed on a side portion of the shuttle plate and slidably resiliently urging a positioning lug formed on a side wall of the socket base, whereby upon forwardly sliding of the shuttle plate having an electronic package of pin grid arrays (PGA) mounted on the shuttle plate with the PGA leads pre-inserted into the sockets in the base by passing through a plurality of lead holes formed in the shuttle plate to keep an insertable buffer distance between each contact element and each lead, the positioning lug on the socket base will be engageably locked by a detention hook portion formed on a rear portion of the resilient lever for firmly engaging each PGA lead with each contact e