Abstract: A robotic gripper for grasping a target object includes a linear actuator and a gripping assembly. The gripping assembly is coupled to the linear actuator and includes a plurality of fingers that are positioned to selectively grasp and release the target object. The linear actuator includes an air cylinder and a linearly movable rod that reciprocates within the air cylinder between a retracted position and an extended position. The gripping assembly includes a finger holder and a finger closer. The fingers are affixed to the finger holder and extend from the finger holder through openings formed in the finger closer. The finger closer is coupled to the linearly movable rod which reciprocatingly drives the finger closer over the fingers to adjust the fingers between a first position in which the fingers grasp the target object and a second position in which the fingers release the target object.

Abstract: An automatic flow measuring device is used in an industry where accuracy in dispensing of liquid is necessary. It is fully automatic in nature and is used with a PLC (programmable logic controller) to give the system intelligence and reporting capability. The automatic flow measuring device for measuring fluid flow includes an automatically operated valve, a tee connector operatively coupled to the automatically operated valve, an elongated member defining a measuring chamber coupled to the tee connector, at least a first fluid level sensor mounted on the elongated member at a first position thereon and a second fluid level sensor mounted on the elongated member at a second position thereon. The first and second sensors are preferably electronic and send signals to the PLC which opens and closes the automatically operated valve.

Abstract: A method and apparatus for measuring the presence of trace amounts of a halogen gas in ambient air by changes in conductivity of a negative corona in an electrical sensing gap due to the presence therein of such electro-negative gas molecules, utilizes a digital feedback loop sensitive to gap corona current to adjust the high voltage producing the corona discharge to obtain the optimum corona current for best sensitivity irrespective of the concentration of the halogen contaminant present. The presence of the halogen gas contaminant in the air is indicated by a bi-level audible alarm consisting of a periodically interrupted tone the frequency of which goes above or below a base line value to indicate small variations in impurity concentration above or below the base line concentration, and the tone interruption rate of which, at the same time, increases for large impurity concentrations.