Bizarre Patents
Mountable Printable Placard With Headband
A resilient headband in a shape for being mounted on the head of the user. The headband is equipped with a longitudinal slotted member for holding a placard.
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| Number | Title | Issue Date |
| 7369816 | Highly accurate temperature sensor employing mixed-signal components A radio transceiver includes circuitry that enables received RF signals to be down-converted to baseband frequencies and baseband signals to be up-converted to RF signals prior to transmission without requiring conversion to an intermediate frequency. The circuitry ... | 05/06/2008 |
| 7212064 | Methods and systems for measuring temperature using digital signals Methods and systems for measuring temperature are described. A voltage source supplies a voltage. A current source supplies an amount of current that is controlled using a digital input signal. A diode is coupled to the current source. A comparator has a first input... | 05/01/2007 |
| 7164343 | Digital potentiometer A variable potentiometer with a wiper terminal and first and second terminals has relay switches for shorting or for unshorting resistors. When resistance is reduced between the wiper and one of said terminals, resistance is increased between the wiper and another t... | 01/16/2007 |
| 7118273 | System for on-chip temperature measurement in integrated circuits A thermal sensor providing simultaneous measurement of two diodes. A first diode and a second diode are coupled to a first current source and a second current source, respectively. The ratio of the currents provided by the two sources is accurately known. The voltag... | 10/10/2006 |
| 7108420 | System for on-chip temperature measurement in integrated circuits A thermal sensor providing simultaneous measurement of two diodes. A first diode and a second diode are coupled to a first current source and a second current source, respectively. The ratio of the currents provided by the two sources is accurately known. The voltag... | 09/19/2006 |
| 7018096 | Packed product temperature measuring device A temperature probe includes an elongated longitudinal tubular shaft having a hollow interior, an insulating structure mounted on the elongated shaft, and a heat conducting structure constructed of a metallic material coupled to the insulating structure. A thermocou... | 03/28/2006 |
| 6921198 | Patient temperature repeating system and method A patient temperature repeating system and a method of repeating patient temperature information from a resistive-type patient temperature sensor allow one or more medical instruments to utilize a single patient temperature sensor. In one embodiment, the patient tem... | 07/26/2005 |
| 5655305 | High precision electronic digital thermometer A microprocessor controlled high precision electronic digital thermometer which is capable of producing highly accurate temperature readings while using relatively inexpensive components. The digital thermometer of the invention uses a thermistor probe to... | 08/12/1997 |
| 5098200 | Dual range temperature monitoring circuits A temperature monitoring system provides a first, coarse temperature output signal, and a second, fine temperature output signal based on the first, coarse output signal. The fine output signal has a higher resolution than the coarse output signal, and pe... | 03/24/1992 |
| 4627745 | Fast responding temperature transducer circuit There is disclosed a fast responding temperature transducer circuit which provides an accurate steady-state output representing temperature in short periods of time. The circuit includes a temperature sensor which is sampled during alternate periods of ti... | 12/09/1986 |
| 4475823 | Self-calibrating thermometer A calibration system for a temperature sensing probe in an electronic thermometer, including: a reference temperature element having a characteristic that varies as a function of temperature; a reference temperature sensing circuit, responsive to the refe... | 10/09/1984 |
| 4191197 | Touch free tympanic thermometer A thermometer system for blowing heated air having a temperature value close to the temperature value of body temperature directly onto the tympanic membrane from tubing apparatus, and measuring the temperature of the air as it returns from the membrane, ... | 03/04/1980 |
| 4179927 | Temperature sensing device A device for sensing temperature changes at an object, specifically within a transformer or the like, is disclosed herein. This device utilizes an electrically non-conductive sensor including a temperature responsive substance having the characteristic of... | 12/25/1979 |
| 4177423 | Bridge circuits A bridge circuit for measuring or use in a temperature-responsive servo-mechanism. A chain of four or alternatively five resistors is connected between power supply rails, an inner two resistors of the chain being shunted by the track of a potentiometer. ... | 12/04/1979 |
| 4075882 | Temperature calibration system A system for calibration of a temperature probe at temperatures both above and below ambient. A dry type heatsink for receiving the temperature probe, with a plurality of thermo-electric modules for selectively heating and cooling the heatsink to a preset... | 02/28/1978 |
| 4022063 | Electromechanical digital thermometer A highly accurate low-cost electronic thermometer with digital readout, intended primarily for clinical use. Temperature sensing is accomplished by a thermistor in a probe assembly which includes a unique disposable probe cover which provides excellent th... | 05/10/1977 |
| 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 |
| 4000454 | Linearization apparatus for a non-linear resistance transducer in a self-balancing bridge connection A linearization apparatus for a non-linear resistance transducer in a self-balancing bridge connection, in which apparatus the non-linear characteristic of the resistance transducer is linearized by changing the voltage impressed on the bridge as the resi... | 12/28/1976 |
| 3992667 | Electro-thermal readout coulometer A method and apparatus are disclosed for reading a coulometer by sensing the temperature of the electrolyte. A preferred embodiment comprises a pair of temperature sensitive elements spaced apart along the coulometer and connected to a bridge circuit.... | 11/16/1976 |
| 3964315 | Apparatus including novel bridge circuit A bridge circuit for measuring the D.C. resistance of a resistive element having an induced A.C. current comprises impedance legs whereby the A.C. component can be balanced out. The invention has particular application to the measurement of high-voltage c... | 06/22/1976 |
| 3939687 | Temperature calibration system A temperature calibration system including a well for receiving a temperature sensor such as a thermometer or thermocouple, and a heater for heating the well to a desired and adjustable temperature. A single well instrument providing a temperature range o... | 02/24/1976 |
