Abstract: A method for wireless control of an auto chart instrument and an auto phoropter by using a smart pad, comprising: control data inputting step for being inputted with control data for wireless control of one of the auto chart instrument and the auto phoropter; and controlling step for controlling one of the auto chart instrument and the auto phoropter according to the control data inputted during the control data inputting step, is disclosed.

Abstract: A method for wireless control of an auto chart instrument and an auto phoropter by using a smart pad, comprising: control data inputting step for being inputted with control data for wireless control of one of the auto chart instrument and the auto phoropter; and controlling step for controlling one of the auto chart instrument and the auto phoropter according to the control data inputted during the control data inputting step, is disclosed.

Abstract: A CNG fueling system includes a plurality of CNG tanks for storing compressed natural gas, a supply pipe for connecting the tanks to a combustion chamber of a internal combustion engine, valves provided in the supply pipe, a low pressure regulator for regulating low pressure, and a gas mass sensor for sensing the mass of the gas. The CNG fueling system further includes a lubricant drainage device connected with the low pressure regulator for draining lubricant that has infiltrated into the system.

Abstract: A pneumatic transmission for a motor vehicle is provided with a gear shifting apparatus employing a pair of photo-sensor arrangements, each of which is rotatably engaged with a shift shaft and a select shaft for detecting a position of a shift lever, and a cam arrangement coupled to the shift shaft for completing a shifting operation of the shift lever in case of a half shifting and providing a shifting feeling to a driver.

Abstract: A pneumatic transmission for a motor vehicle is provided with a gear shifting device which comprises a first pneumatic cylinder mounted to a housing for moving a shift arm fixed to a shift shaft thereof in predetermined shift positions, and a second pneumatic cylinder mounted to the housing and arranged in a cross relationship with the first cylinder for moving the shift arm in predetermined select positions. The second cylinder includes a selector shaft and a select rod slidably disposed therein in an axially spaced opposite relationship with each other, and select arms extending from ends of the selector shaft and the select rod to converge toward an end portion of the shift arm. A yoke is provided to interlink the select arms with the shift arm so as to move the shift arm in the predetermined select positions through the clockwise and counterclockwise rotation of the shift arm by a linear movement of the selector shaft.