TELEDYNE ISCO, INC.
|TELEDYNE ISCO, INC. Patent applications|
|Patent application number||Title||Published|
|20120285183||SAMPLE COLLECTOR AND COMPONENTS THEREOF - To provide a protective coat on a refrigerated sample collector for a corrosive environment a unitary frame includes a support unit with condenser and evaporator coils mounted to the support unit and an orifice connecting the condenser and evaporator coils. The evaporator coils, condenser coils and restrictor are powder coated after being connected, whereby an effective seal is provided for the restrictor, condenser coils and evaporator coils after they are assembled to the support. The unitary frame can be easily removed or connected as a unit to the sample collector. A peristaltic pump may be used for drawing at least one sample into the refrigerated sample collector and depositing said sample into at least one sample bottle. The peristaltic pump may include contoured tube guides to reduce movement of the peristaltic pump as a roller paddle rotates.||11-15-2012|
|20090217696||SAMPLE COLLECTOR AND COMPONENTS THEREOF - The bottle rack for the sample collector is made by injection molding two halves of the rack each of which has a matching surface and a bottle positioning surface. The matching surfaces are fastened together by placing the matching surfaces together back to back whereby locating members are spaced apart a sufficient. To warm a compressor to a starting temperature during cold weather, the ambient temperature is measured and when the ambient temperature is lower than a preset temperature and the compressor is not running, current is applied to the motor windings to warm the compressor.||09-03-2009|
|20090216477||MEASURING APPARATUSES AND METHODS OF USING THEM - “A measuring instrument includes a transducer for measuring the depth of liquid and a transducer for measuring a physical parameter that causes interference error. A calibration polynomial is used to correct the output signal. The calibration polynomial includes the signal generated by the transducers as independent variables and the output signal as the dependent variable. The calibration polynomial is formed by a correction polynomial having at least one primary measurement signal and at least a first interference related signal as independent variables and a calibrated signal as a dependent variable. To form the calibration polynomial, a preliminary calibration polynomial including the primary independent variable and at least one interference related independent variable is developed. A plurality of data sets is generated from a test fixture. This data is used to eliminate the least significant terms of the preparatory calibration polynomial and to add the most significant cross terms”.||08-27-2009|
|20080296207||Chromatographic solvent monitor - A bubbler is positioned within a solvent reservoir of a chromatographic system with its opening near the bottom of the system to measure the pressure of solvent. The bubbler may use air or may use helium or some other gas so that the solvent can be purged of excess air while its level is being monitored by the bubbler. The bubbler provides a depth signal to a microcontroller that records the drop in pressure and projects a low level of pressure at which point solvent should be replenished. The microprocessor may provide a signal to the operator or terminate operation or automatically replenish solvent depending upon the program.||12-04-2008|
|20080235081||Apparatuses and methods for wireless monitoring and control of supplies for environmental sampling and chromatographic apparatuses - Purchase orders for chromatographic columns and sampler tubing are entered into based on estimating usage for a year. An initial partial shipment is made of tagged columns or tubing as the tubing or columns are used. An RFID transmits trigger signals until an order point is reached at which time a new partial shipment is made. This process is repeated until the end of the year.||09-25-2008|
Patent applications by TELEDYNE ISCO, INC.