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| Number | Title | Issue Date |
| 5425484 | Removable insulating jacket for bottle attached to a bar A removable insulating jacket for the body section and funnel section of a bottle carried in a cage affixed to a bar of a bicycle in which the insulation for the body section is formed from foam having skin on at least one surface that is compressed to fo... | 06/20/1995 |
| 4890267 | Switch matrix A switch matrix for a transceiver of ultrasonic waves containing a configuration of electroacoustic transducer elements in which in succession proceeding over the arrangement a group of transducer elements can be activated, contains a number of inputs (K1... | 12/26/1989 |
| 4888701 | Apparatus for measuring vector voltage ratio An apparatus is disclosed for providing the projections of signals supplied to two inputs on mutually perpendicular axises by applying a different combination of the signals respectively at said input terminals and quadrature phases of an AC wave to each ... | 12/19/1989 |
| 4860378 | Text formatting apparatus In text formatting apparatus, means for inputting text, means for restricting formatting each line, means for storing characters to be used in the restriction formatting, and means responsive to a given command for changing the stored characters.... | 08/22/1989 |
| 4854326 | Establishing a zero reference for invasive pressure sensors A catheter for use in apparatus for deriving a signal corresponding to the blood pressure of a patient, said catheter comprising means defining a lumen in said catheter, a transducer mounted at a distal end of said lumen, and a compliance means in said lu... | 08/08/1989 |
| 4841228 | Apparatus for indicating the resistive characteristic of a capacitor Current passing through a capacitor being measured is combined with programmable portions of oppositely phased current, and means are provided for deriving voltages from said combined current that lie within a given range regardless of the capacitance of ... | 06/20/1989 |
| 4838278 | Paced QRS complex classifier Apparatus for classifying QRS complexes as dual chamber paced, atrially paced or ventricularly paced by assigning complexes to groups in accordance with shape, deriving the intervals between pace pulses and their respective QRS complexes, determining if t... | 06/13/1989 |
| 4839651 | Apparatus for measuring the dynamic characteristics of an analog-digital converter Apparatus for measuring the dynamic characteristics of an ADC in which the clock for a generator of digitized words representing a plurality of cycles of an analog wave to be derived from them by a DAC and applied to the ADC being measured is derived from... | 06/13/1989 |
| 4832041 | Pace pulse eliminator Apparatus for effectively eliminating pace pulses from an ECG wave without introducing distortion comprising means for comparing the slope of the ECG wave with a threshold slope derived from the wave that is greater than the maximum slope produced in the ... | 05/23/1989 |
| 4827942 | Flow map apparatus Ultrasonic apparatus for representing the velocities of flow of fluid occurring with an image plane by changing the hue and intensity of the colors with changes in flow rate.... | 05/09/1989 |
| 4825140 | Power tool/vacumm cleaner power control A power controller having first and second power outlets, connections between one side of an A.C. line to one side of each outlet, a current sensing impedance connected between the other side of the A.C. line and the other side of the first power outlet, ... | 04/25/1989 |
| 4816740 | Mode optimized D.C. power supply A D.C. power supply in which the output capacitor used in the CV mode of operation is removed from the output circuit in the CC mode of operation and charged to the voltage between the output terminals so as to prevent transients or switch stressing that ... | 03/28/1989 |
| 4815047 | Synthetic focus annular array transducer Ultrasound imaging apparatus having an array of electro-acoustic transducer rings, means for exciting said transducer rings in sequence so as to cause them to transmit successive pulses of pressure waves along a path at intervals at least equal to the tim... | 03/21/1989 |
| 4804902 | Linear, low EMI/RFE fan control circuit A circuit is described for controlling the speed of an A.C. motor driving a cooling fan in response to the temperature at a point being cooled in which a temperature responsive impedance is used to control the current in an impedance of the output circuit... | 02/14/1989 |
| 4800749 | Transducer calibration circuit A calibration circuit in which low valued resistors are respectively connected in series with transducer outputs and switching means are provided for connecting resistors in the circuit so as to produce a voltage across the low valued resistor that corres... | 01/31/1989 |
| 4794532 | Virtual arrhythmia system A patient arrhythmia monitoring system having a plurality of bedside stations that can derive physiological data for a patient coupled thereto, a central station, a bus for providing communication between said bedside stations and said central station. A ... | 12/27/1988 |
| 4790323 | Flow imaging detector Estimates of the average velocity and turbulence of blood flow are determined by weighting the instantaneous frequencies of a returning Doppler signal. The weighting can be chosen so that the estimates are optimized. The weighting can be chosen so as to d... | 12/13/1988 |
| 4787656 | Capillary tubing coupler A tubing coupling device constructed in accordance with this invention is comprised of a rigid body having cavity therein, an aperture communicating with the smaller end of said cavity and a tapered ferrule having an axial passageway that is aligned with ... | 11/29/1988 |
| 4780284 | Gas chromatography Apparatus for detecting gas in a sample gas in a carrier gas stream and including a windowless ionization detector having a pulsed power supply which is switchable at a rate which provides a pulse period shorter that the transit time of ions to be detecte... | 10/25/1988 |
| 4763649 | Technique for creating a zero reference for an external pressure transducer Apparatus for measuring the blood pressure of a patient, comprising a catheter, a first transducer mounted in an end portion of said catheter so as to produce at an output thereof a signal corresponding to blood pressure variation thereat, means defining ... | 08/16/1988 |
| 4763015 | Appliance/refrigerator power controller A power controller having first and second power outlets, connections between one side of an A.C. line to one side of each outlet, a current sensing impedance connected between the other side of the A.C. line and the other side of the first power outlet, ... | 08/09/1988 |
| 4761740 | Combined color flow map and monochrome image A monochrome image of a cross-section of a body and a color representation of the velocity of blood flow therein are combined so that they are mutually exclusive by causing each pixel of a display to be in monochrome when a signal from which a velocity in... | 08/02/1988 |
| 4750145 | Doppler AGC using overflow counters internal to FFT Apparatus for controlling the amplitude of a signal applied to an FFT system in accordance with the overflows occurring in the various butterfly operations.... | 06/07/1988 |
| 4739770 | Flush device A flush device in which a first passageway extends between a first opening in a body and a first port in said body, a second passageway extends between a second opening in said body and a second port in said body, a capillary pathway provides communicatio... | 04/26/1988 |
| 4738422 | Adjustable tilt/swivel/cable dress A mounting assembly in which a monitor can be mounted to a plate having a downwardly extending spherical wall that rides on an annular ridge around the periphery of a circular opening in a formed based. A radial slot is formed through the spherical wall, ... | 04/19/1988 |
| 4735441 | Non-loosening luer nut An assembly for axially coupling male and female tubes including a nut having internal threads on a polygonally shaped inner surface at one end that can be screwed onto a projection on one of the tubes so as to draw a collar at the other end of the nut in... | 04/05/1988 |
| 4735082 | Pulse modulated thermal conductivity detector A thermal conductivity detector comprised of a Wheatstone bridge having a filament in one arm thereof that is contained within a cavity through which the elutant from a column is passed and means for deriving an output signal from one diagonal of the brid... | 04/05/1988 |
| 4722346 | Stand-off device with special fluid A stand-off device for use with acoustic transducers is described in which a chamber having a diaphragm portion contains liquid, the ratio of the acoustic impedance of said diaphragm to the acoustic impedance of soft body tissue and the ratio of the acous... | 02/02/1988 |
| 4718634 | Physiological pressure monitoring system flush valve A valve assembly in which the ends of a tube having a passageway extending therethrough are respectively mounted in cavities in separate housings each of which has a passageway communicating with its cavity. An elastic sleeve is placed about the adjacent ... | 01/12/1988 |
| 4714909 | Support for transformer windings A support for transformer windings comprised of a first base having a first group of annular walls extending from one side thereof, a second base having a second group of annular walls extending from one side thereof that nest in spaces between said first... | 12/22/1987 |
| 4703759 | Flush valve device A valve assembly for permitting a continuous small flow of fluid to pass through it via a passageway in a valve stem and a fast flow of fluid to pass through it via a path between the valve stem and a housing containing resilient bellows only when the bel... | 11/03/1987 |
| 4700573 | Method to improve accuracy in delay lines The errors in phase produced by differences in the locations of taps on a delay line are compensated by determining the error by transmitting oscillations from a test oscillator through each tap and storing the difference between the actual phase and the ... | 10/20/1987 |
| 4695791 | Auto ranging of a frequency measuring instrument An auto ranging system for causing an instrument for determining the frequency of a wave to be in a frequency mode or a period mode in response to the digits of the frequency of the wave determined in a trial interval. The cycles of the wave during which ... | 09/22/1987 |
| 4679039 | Smoothing discontinuities in the display of serial parallel line segments Apparatus that smoothes the discontinuities between serial parallel straight line segments by adding auxiliary dots of lesser diameter below the larger main dots forming a first line segment in a given row and adding the same size auxiliary dots above the... | 07/07/1987 |
| 4675864 | Serial bus system A serial bus system in which frames are sent from a central station to a plurality of substations over a first conductor and information is sent from the substation to the central station over a second conductor. Each transmitted frame contains bits ident... | 06/23/1987 |
| 4671294 | Pulsed doppler flow mapping apparatus A pulsed Doppler imaging system is shown in which velocity of a fluid is attained by multiplying the quadrature samples of the reflections of one burst with the conjugate of the quadrature samples of the reflections of a previous burst for a number of pai... | 06/09/1987 |
| 4667680 | Apparatus and method for reduction in respiration artifact in pulmonary artery pressure measurement Apparatus is disclosed for deriving weighted values SHD i, DHD i and MHD i to respectively represent the systolic, diastolic and mean blood pressures for each heartbeat of a patient from the values Si, Di and Mi that are t... | 05/26/1987 |
| 4667279 | Transformer coupled pard bucker for DC power supplies A noise reduction circuit for a DC power supply in which the input of a high pass filter is coupled to the output circuit of the supply so as to receive a noise signal, the output of the high pass filter is coupled to the primary winding of a transformer ... | 05/19/1987 |
| 4664116 | Pace pulse identification apparatus A pace pulse identification apparatus in which low frequency signals are rejected by a filter and the pace pulses and high frequency noise are applied to one input of a comparator. A threshold wave having an amplitude that is not significantly affected by... | 05/12/1987 |
| 4654504 | Water-cooled gas discharge detector The radio frequency powered gas discharge tube of an atomic emission detector is cooled with a flow of liquid, and means are provided for grounding points in the flow that are on opposite sides of the radio frequency field so as to reduce the amount of ra... | 03/31/1987 |
