Abstract: A liquid crystal display (LCD) car monitor frame structure without blocking a driver's rear vision includes a roof mount fixed to a car ceiling, a LCD monitor, and at least one connecting member connecting the LCD monitor to the roof mount. An unobstructed space is formed between the roof mount and the LCD monitor when the LCD monitor is rotated out and pulled down to a pre-determined position for utilization by passengers. The unobstructed space accords with the view angle of the rearview mirror of a car. The rear vision of a driver will not be blocked while rear seat passengers watch the LCD monitor.

Abstract: A safety garage door apparatus includes a garage door, two tracks, a controller, a linking device and a detecting device. Two tracks are installed on two sides of the garage door, respectively. The controller includes a motor, a driving device connected to the motor, and a microprocessor. The linking device includes a rail, a rack slidably mounted in the rail, and a linkage with one end connected to the rack and the other end connected to the garage door. The rack is connected with the driving device. The detecting device is mounted in the controller to continually detect a location of the rack so that a moving speed of the rack is determined by the microprocessor to compare with a predetermined rate to determined whether an operation of opening or closing the garage door needs to be stopped or reversed, or a maintenance of the garage door apparatus is needed.

Abstract: The invention provides a garage door that can have enhanced preventive safety measures and equipment to accommodate precise and timely maintenance. It is mainly to add into the garage door control mechanism a transceiver that uses electromagnetic waves in the form of laser, infrared, or supersonic wave as distance-measuring and transmission medium, which is directly reflected to the transceiver through a moving roller. In this way, the distance between the moving roller and the garage door can be measured. The roller speed can be pre-determined, so it equals to the garage door speed. Besides, the preset roller speed can be compared to the actual roller speed. This comparison ratio is used as a precise reference to determine whether the closing garage door hits an obstacle or carry out preventive safety maintenance. Thus, accidents can be prevented when the garage door is closing. The invention provides enhanced preventive safety measures and equipment to accommodate precise and timely maintenance.

Abstract: The present invention provides a safety device for garage door. It is mainly to install a light guiding mirror at each of the four corners on the inner side of a garage door. Besides, a transmitter and a receiver for laser beam and infrared beam are installed in the garage door control mechanism. Through the surrounding light guiding mirrors, the beam irradiated from the transmitter in the door control mechanism returns to the receiver as a continuous horizontal line crossing itself in a number of times. The path that the beam travels constructs an extensive sensing network. When a garage door is closing and subject to blockage, such a sensing network can respond immediately by commanding the garage door control mechanism to stop closing action and return to open state. The invention is a safety device that can improve the safety when people, cars or objects are moving in and out of a garage.

Abstract: This invention relates to an improved structure for the vehicular temperature, pressure and vacuum meters with characteristics on that the hand rod is an integrally formed design joined to the dial plate and Bourdon tube without using any bolts or screws, so it is convenient for fast assembly. The Bourdon tube and the hand rod are designed to be suitable for application of any size of the dial plate, so the Bourdon tube, the hand rod and the dial plate can be manufactured and assembled in mass production and tested beforehand to assure the required sensitivity and accuracy as long as the retaining recess on the dial plate can be fitted and locked firmly in place with the retaining protruding point on the meter housing.

Abstract: A protective device or an auto illumination system, including an illumination component, a protective diode, a pulse processor, an overcurrent limit circuit, a high-voltage oscillator circuit and a trigger control circuit. An overcurrent limit circuit is added to the auto illumination system for protecting illumination elements from being burned due to excess current, by providing a curbing signal therefrom, so that the illumination elements can be protected from being destroyed even when the engine speed runs at over 18000 rpm, or as a result of mistakenly connecting an input signal line to the rotary distributor, increasing the durability of the illumination system. A trigger control circuit is provided for receiving a triggering signal to generate a high negative voltage for the illumination elements.