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| Number | Title | Issue Date |
| 4376280 | Instrument system for iron oxide reducing kilns A system for monitoring the internal conditions in a rotary kiln is disclosed wherein a series of sensors, such as thermocouples, are installed in ports at various longitudinal and angular coordinates along the total length of the kiln for providing tempe... | 03/08/1983 |
| 4363137 | Wireless telemetry with magnetic induction field A data communication system has a transmitting antenna (18,19), a source (34) of data to be transmitted, a carrier source (45), and a modulator (41,42,43) located at a first point. The transmitting antenna includes an inductive winding (17) having an elec... | 12/07/1982 |
| 4356486 | Telemetering system for operating room and the like A system for telemetering data from a patient to a monitor permitting direct connection of patient's sensors and transducers to the monitor and permitting telemetering by radio or wire without requiring changes in transducer or monitor design or adjustmen... | 10/26/1982 |
| 4321933 | Telemetry system for monitoring hospital patient temperature Hospital patient temperatures are monitored by providing each patient with a battery powered transmitter containing a thermistor and reference resistor which is positioned over the patient's carotid artery. A receiver, carried by a nurse, includes an actu... | 03/30/1982 |
| 4319241 | Telemetering system for operating room and the like A system for telemetering data from a patient to a monitor permitting direct connection of patient's sensors and transducers to the monitor and permitting telemetering by radio or wire without requiring changes in transducer or monitor design or adjustmen... | 03/09/1982 |
| 4275382 | Apparatus for monitoring and controlling vessels containing liquid Apparatus for determining the level of liquid in a vessel, e.g., storage tank comprises a plurality of indicators at varying heights along the vessel acting to indicate the presence of the liquid level at a given height; a controller to receive signals fr... | 06/23/1981 |
| 4268818 | Real-time parameter sensor-transmitter Apparatus for directly monitoring the conductor temperature or other parameters of an energized electric power line conductor, or of the medium adjacent the conductor, on a real time basis, and transmitting a signal indicative of that parameter to a remot... | 05/19/1981 |
| 4215336 | Apparatus and method for stabilization of a thermistor temperature sensor A thermistor temperature sensor having non-linear electrical response characteristics with temperature, a material constant, beta, that varies with temperature, and providing an output signal indicative of the temperature desired to be measured is utilize... | 07/29/1980 |
| 4194178 | Electric motor with internal wireless load monitor A self-contained modular chip within an induction motor housing detects and develops a motor operation signal, such as loading from motor characteristics such as slip analysis, and couples it by carrier current techniques to the power line for final proce... | 03/18/1980 |
| 4184159 | Method and installation for temperature control in a silo The disclosure relates to a method for silage temperature control in a silo. Measurement transmitters are placed at points where it is desirable to check the temperature of the silage located in the silo. These measurement transmitters are activated, on t... | 01/15/1980 |
| 4180199 | Mass soldering control system A system for measuring time/temperature profiles of a mass soldering operation is described. In accordance with the invention a data probe and miniature transmitter is carried through the soldering operation on top of the circuit board being soldered. A p... | 12/25/1979 |
| 4158810 | Telemetering post for measuring variables in a high-voltage overhead line One or more sensors coating a conductor of a high-voltage overhead line provide the signals for measuring variables associated with the operation of a high-voltage overhead line such as voltage, current or phase, wire temperature, ambient ionization etc. ... | 06/19/1979 |
| 4150358 | Temperature measuring system for rotating machines A system for transmitting signals between stationary and movable portions of a machine without utilizing any direct electrical contacts. An alternating supply source for the system is provided on the stationary portion and is connected to a stationary cou... | 04/17/1979 |
| 4140999 | Transformer hot spot detection system The invention is a system for the detection of hot spots, i.e., localized over-heating, in electrical power transformers and the like which utilize one or more telemetric temperature devices that are embedded at preselected locations in the windings of th... | 02/20/1979 |
| 4051728 | Instrument for monitoring physical parameters of temperature and pressure An instrument for monitoring a physical parameter consisting of temperature or pressure, includes an elastic sensor displaceable as a function of the physical parameter being monitored, a belt extending over at least two spaced rollers and coupled to the ... | 10/04/1977 |
| 4025912 | Method and apparatus for remotely transducing and transmitting pressure and temperature changes A capacitance-type transducer capsule is placed in a remote environment for xposure to its changing physical conditions. A energy pick-up coil in the capsule receives a remotely-generated signal which is converted to DC power for chargeably establishing th... | 05/24/1977 |
| 4016763 | Two wire current transmitter responsive to a resistive temperature sensor input signal Circuitry including a resistance sensor is excited by an external power source. A reference voltage is established, the voltage developed across the sensor resistance is compared at an amplifier input with a reference voltage signal and the voltage across... | 04/12/1977 |
| 3978729 | Circuit for monitoring temperature of high-voltage equipment This invention relates to an improved circuit for measuring temperature in a region at high electric potential and generating a read-out of the same in a region at lower potential. The circuit is specially designed to combine high sensitivity, stability, ... | 09/07/1976 |
| 3971362 | Miniature ingestible telemeter devices to measure deep-body temperature A miniature, ingestible and encapsulated telemeter device for transmitting information relating to deep-body temperature of a subject comprising a battery source of power, and a free running multivibrator circuit having fixed biasing means connected to os... | 07/27/1976 |
| 3950993 | Temperature sensors with improved operating characteristics utilizing magnetic elements Temperature sensors utilizing either one pair or two pair of inductive magnetic elements are disclosed. The inductive elements of each pair are constructed of different magnetic materials so that the permeability of the two elements change at different ra... | 04/20/1976 |
| 3949388 | Physiological sensor and transmitter A small self-contained sensor and transmitter assembly including a sensor for detecting physiological and bio-medical phenomena and a transmitter for transferring such data to a receiver for display and other use is disclosed. In one embodiment, the senso... | 04/06/1976 |
| 3940987 | Apparatus for measuring the temperature of an operating spark plug Apparatus for measuring the temperature of the insulator tip of a spark plug being operated in an internal combustion engine. A thermocouple is embedded in the surface of the insulator tip adjacent the spark gap for sensing temperature. The output of the ... | 03/02/1976 |
