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| Number | Title | Issue Date |
| 4068529 | Method and apparatus for automatically performing series analyses Automatic sample preparation method and apparatus for making successive measurements with an analyzer by picking up with a single stepwise movable metering probe, in a first measuring cycle, a sample for measurement from a sample container and a small vol... | 01/17/1978 |
| 4043180 | Gathering line leak detection system tester A system employing a plurality of electronic oscillators for generating test signals at spaced locations remote from a selection point. The oscillators are coupled to a gathering line for petroleum products, each being located adjacent to an acoustic dete... | 08/23/1977 |
| 4003240 | Calibration device for vaporized liquids A calibration device having a thermally insulated storage receptacle for a liquid to be analyzed. The liquid is converted to a vapor form by passing a carrier gas through the liquid to be analyzed whereby the carrier gas is saturated with the liquid. The ... | 01/18/1977 |
| 3975947 | Method of and apparatus for quantitative analysis Method of measuring constituents in a fluid which may be gaseous or liquid, which dispenses with calibration procedures which are performed at the expense of the measuring time. The measuring apparatus is continuously supplied with a known amount of const... | 08/24/1976 |
| 3975727 | Automated calibration and standardization apparatus New and improved apparatus is provided for the calibration and standardization of the analog output signal level of automated analysis equipment, which level varies as a function of the concentration of the constituent being analyzed. Such apparatus compr... | 08/17/1976 |
| 3954002 | Method for calibrating moisture content measuring instruments Moisture testing instruments for use in heaped, loose material include a neutron source and a detector. The instrument is calibrated by duplicating the test volume as calibrating container and by radiometrically as well as gravimetrically detecting the mo... | 05/04/1976 |
| 3949599 | Method of quantitave analysis For continuously and quantitatively determining one or more constituents of a fluid a given amount thereof is passed through a measuring cell which has an adjustment inertia of exponential nature. By alternately passing a reference fluid and the fluid to ... | 04/13/1976 |
| 3934197 | Automatic calibration system An automatic calibration system for pH meters includes a digital counter and a digital-to-analog converter which produces an output voltage connected to compensate the zero offset DC voltage of the pH measurement system. During a calibration operation a s... | 01/20/1976 |
