| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 1 | Apparatus and method for detecting liquid flow from a spray device | US10986580 | 2004-11-12 | US07182271B2 | 2007-02-27 | James Cesak |
| A flow sensor for detecting liquid flow generated by a spray device is non-invasive and capable of responding to rapid changes in the flow. The flow sensor includes a light emitter and a light detector, which may be disposed adjacent the liquid outlet of the spray device and oriented such that a light beam projected by the light emitter is aimed at the spray generated by the spray device and reflected by the spray into the light detector. The light detector senses the reflected light and generates an output indicative of the presence of the flow from the spray device. A deviation of the spray from the intended spray axis may also be detected. | ||||||
| 2 | Apparatus and method for detecting liquid flow from a spray device | US10986580 | 2004-11-12 | US20060102741A1 | 2006-05-18 | James Cesak |
| A flow sensor for detecting liquid flow generated by a spray device is non-invasive and capable of responding to rapid changes in the flow. The flow sensor includes a light emitter and a light detector, which may be disposed adjacent the liquid outlet of the spray device and oriented such that a light beam projected by the light emitter is aimed at the spray generated by the spray device and reflected by the spray into the light detector. The light detector senses the reflected light and generates an output indicative of the presence of the flow from the spray device. A deviation of the spray from the intended spray axis may also be detected. | ||||||
| 3 | Out-of-liquid sensor, and liquid supply device using same | US10320224 | 2002-12-16 | US06819250B2 | 2004-11-16 | Yuji Nishioka |
| The present invention provides a highly universal out-of-liquid sensor that allows an out-of-liquid condition to be accurately detected for a long time, and provides a liquid supply device using the same. The out-of-liquid sensor 1, that is mounted in a liquid supply route for supplying a liquid to a predetermined location and forms a part of the liquid supply route, comprises a light-transmissive tubular body 2, the opening at one end of which is formed into a connecting section 4 capable of communicating with an upstream piping 16 of the liquid supply route, and the opening at the other end of which is formed into a connecting section 5 capable of communicating with a downstream piping 16′ of the liquid supply route, and in which an internal bore section 6 communicating between the two connecting sections 4 and 5 is formed in the liquid-transmitting channel; and also comprises a photosensor 3 mounted on the tubular body 2, the detector 11 of the photosensor 3 being constructed to sense, through the light-transmissive wall surface of the tubular body 2, the presence or absence of a liquid flowing through the internal bore section 6. | ||||||
| 4 | Arterial shunt with blood flow indicator | US925393 | 1992-08-04 | US5374239A | 1994-12-20 | Peter S. Mischenko |
| An arterial shunt is disclosed having means for indicating the flow of blood through the shunt. The shunt comprises a movable indicator element responsive to the flow of blood. Whether or not blood is flowing through the shunt may be quickly and easily ascertained by visual inspection of the indicator element through a transparent window. Alternatively, electromagnetic or optical means may be employed to measure the velocity of the movement of the indicator element which also allows the rate of blood flow through the shunt to be quantified. | ||||||
| 5 | Low volume flow meter | US694176 | 1991-05-01 | US5218346A | 1993-06-08 | Lewis D. Meixler |
| The low flow monitor provides a means for determining if a fluid flow meets a minimum threshold level of flow. The low flow monitor operates with a minimum of intrusion by the flow detection device into the flow. The electrical portion of the monitor is externally located with respect to the fluid stream which allows for repairs to the monitor without disrupting the flow. The electronics provide for the adjustment of the threshold level to meet the required conditions. The apparatus can be modified to provide an upper limit to the flow monitor by providing for a parallel electronic circuit which provides for a bracketing of the desired flow rate. | ||||||
| 6 | Photo-optical bulk stream detector for a conduit | US618376 | 1990-11-27 | US5134279A | 1992-07-28 | Peter Lisec |
| A bulk stream detector for a conduit (4, 5) feeding granular, hygroscopic material to be filled into spacer frames (3) for insulating glass from a storage container to a filling head (1) comprises a punctiform light source (8, 9) connected to the conduit (4, 5), this light source emitting a light beam (11) traversing the conduit. A sensor (10) responding to the light (11) emitted by the light source (8, 9) is arranged in opposition to the light source (8, 9). The sensor (10), under the effect of the light impinging thereon from the light source (8, 9), transmits a signal to a control unit (12, 13) which latter, in turn, transmits a signal if, during a preselected period of time after the last signal transmitted by the sensor (10), no signal has been received from the sensor (10). | ||||||
| 7 | Fertility analyzer | US605092 | 1990-10-31 | US5116125A | 1992-05-26 | Rudolf Rigler |
| A fertility analyzer includes a laser beam impinging on a sperm sample in a capiliary, a first optical system including at least a first lens focusing the laser beam in the sample, and a second optical system including at least a second lens, a first diaphragm determining the volume element of the sample to be monitored, a second diaphragm determining the space angle of scattered light and a light intensity detecter. A signal processing device stores the signals from the light detector during a predetermined time separately for beams outgoing from the sperm sample in at least two chosen directions and computes at least two features having relation to the fertility of the sperm sample. A separator included in the combination of the first and second optical systems sorts out a determinable small section of the beam outgoing from the sperm sample in a direction lying in a plane approximately parallel to a plane including the capillary. | ||||||
| 8 | Two wire flow condition sensing system | US496662 | 1990-03-21 | US5049860A | 1991-09-17 | Jonathon E. Farrell; Mark C. Anthony |
| A flow sensor for detecting the absence of a minimum fluid flow in a sprinkler system. The fluid acts upon a vane positioned in the fluid path. Movement of the vane controls the position of a slider. The slider's surface has reflective and non-reflective ends which, in response to the vane's movement, reflect or absorb light from a light emission and detection means. The voltages from the light emission and detection means are monitored for indications of the fluid flow. The sensor uses a two wire signal transmitting system. | ||||||
| 9 | Augmentor fuel system | US104608 | 1987-10-05 | US4802334A | 1989-02-07 | Matthias Eder; Walter B. Kerr |
| An optical sensor (40) located in the manifold area (20) of an augmentor senses the presence of liquid. The engine control provides a high fuel flow rate from remotely located augmentor fuel control (58) until liquid is sensed. Flow is then reduced to the desired metered rate. | ||||||
| 10 | Emergency refrigerant containment and alarm system apparatus and method | US651062 | 1984-09-14 | US4644755A | 1987-02-24 | Steven L. Esslinger; Donald H. Mohring |
| A refrigeration system leak containment apparatus and method comprises a control circuit and a flow continuity measuring means. The flow measuring means uses an infrared light source and an infrared light detector adjacent a fluid viewing window to detect the continuity of liquid flow as measured by the change in index of refraction through the window. If a test condition is not met, the control circuit activates various peripheral devices which sound an alarm and cause the refrigerant fluid to be contained within a predetermined portion of the refrigeration system. | ||||||
| 11 | Automatic air-in-line fluid detector | US713664 | 1976-08-12 | US4114144A | 1978-09-12 | Oscar E. Hyman |
| An automatic air-in-line detector for either a transparent or an opaque fluid including first detector means for detecting air-in-line in the transparent fluid and second detector means for detecting air-in-line in the opaque fluid, and additionally including control means coupled to the first and second detector means and automatically responsive to the difference between the transparent fluid and the opaque fluid for enabling the first detector means in response to the transparent fluid and for enabling the second detector means in response to the opaque fluid and with an alarm in accordance with the detection of air-in-line in either the transparent or opaque fluid. If any of the detectors fail, the system either automatically alarms or becomes more sensitive. If the control means fail, the system automatically alarms. | ||||||
| 12 | 관성센서 | KR1020100127494 | 2010-12-14 | KR1020120066248A | 2012-06-22 | 이성준 |
| PURPOSE: An inertia sensor is provided to protect both surfaces thereof by using polymer. CONSTITUTION: An inertia sensor(100) comprises a flexible substrate(110), a driver(120), a support unit(130), a top cap(140), and a bottom cap(150). The flexible substrate forms a detecting electrode. The driver is supported in a floating state in order to be displaced on the flexible substrate. The support unit supports the flexible substrate and driver. The top and bottom caps cover the top of the flexible substrate and the bottom of the driver. | ||||||
| 13 | AUTOMATIC DETECTION SYSTEM FOR DETECTING DISRUPTIONS IN THE FLOW TO A DISPENSING APPARATUS | US16136588 | 2018-09-20 | US20190018431A1 | 2019-01-17 | RODNEY LAIBLE |
| An automatic detection system is provided for detecting disruptions in the flow of liquid from a liquid container or containers to a dispensing apparatus. Two embodiments of the system are disclosed. In the first embodiment, a single liquid container is utilized. In the second embodiment, two liquid containers are utilized. In both embodiments, an optical sensor is employed to detect a disruption in the flow of liquid from the liquid containers to the dispensing apparatus. | ||||||
| 14 | METHOD FOR DETECTING THE OCCLUSION OF A TUBING FOR A DEVICE FOR ADMINISTERING PHYSIOLOGICAL LIQUIDS | US12093597 | 2006-11-07 | US20090093786A1 | 2009-04-09 | Serge Renaux; Raymond Louberssac |
| The invention relates to a self-parameterizable method for detecting occlusion and pulling out of a tubing for ad-ministering, by enteral route, physiological liquids and to a device for carrying out said method. The inventive device comprises, in essence: a pump (1); an administering tubing (2, 3); a tri-route tubular structure (4, 5, 7) provided with an occlusion detection area (7); a computer (14) and an electromagnetic detection means (8, 9) for detecting the presence of a fluid in said detection area (7) and for detecting a pulling out of said tri-route structure; an electromagnetic detection means (15, 16) for detecting the presence of air inside the dispensing tubing and the pulling out thereof. The inventive method is characterized, in essence, in that it consists of, in the event of repetitive occlusions, programming the computer (14) for systematically and automatically calculating the intensity of the wave received by the receiver (9) at the time of each occlusion and using this value as a reference value for determining the new detection intensity threshold to use during each starting or restarting. | ||||||
| 15 | Rotational rate sensor | US09419033 | 1999-10-15 | US06382025B1 | 2002-05-07 | Steven L. Hunter |
| A rate sensor for angular/rotational acceleration includes a housing defining a fluid cavity essentially completely filled with an electrolyte fluid. Within the housing, such as a toroid, ions in the fluid are swept during movement from an excitation electrode toward one of two output electrodes to provide a signal for directional rotation. One or more ground electrodes within the housing serve to neutralize ions, thus preventing any effect at the other output electrode. | ||||||
| 16 | Photo detector bending beam flow switch and flow meter | US63706 | 1998-04-21 | US5932814A | 1999-08-03 | Harold D. Hutchinson |
| A photo detecting flow sensing bending beam fluid flow switch and flow meter system having blocking targets that selectively block the optical path from an emission source to a photodetector. The device provides a system which is very sensitive to fluid flow in a pipe, container or duct by providing a shaped flexible flow sensitive bending beam having a blocking target which is bent so that the portion of the blocking target is displaced between the emission source and a photodetector. The shaped blocking target is configured to either interrupt or permit the transmission of emission from the emitter to the photodetector. The presence or absence of the source represents the presence or absence of a fluid flow rate above or below a selected value thus, performing a fluid flow switch function. By modifying the blocking target to provide a reflective control from an emission to a photo detector or an absorption of the emission by a target varying in opacity, the relative light output is continuously modulated to produce a voltage output directly proportional to the rate of fluid flow past the target on a flow sensitive bending beam. In an optional embodiment, flow sensitivity is improved by adding vortex shedding enhancements to the flow sensitive bending beam. This combination of functional elements can provide an analog fluid flow meter transducer for flow metering, totalizing in a flow monitoring system having single or multiple flow switching set points. | ||||||
| 17 | Exhaust/supply direction indicator | US427155 | 1994-12-05 | US5661461A | 1997-08-26 | Brian Wiseman |
| An apparatus for detecting the flow direction of a fluid from an apparatus or between two apparatuses such as a biohoods, fume cabinets, or filters. The device includes a conduit horizontal plane and adapted to receive the fluid. A detecting element is disposed within the conduit and is movable in the direction of fluid flow, the detecting element being in direct contact with the fluid. A sensing element may be coupled to the conduit for determining when the detecting element reaches a predetermined position within the conduit. The circuitry coupled to the sensing element enables selection of a desired flow direction and actuates an alarm when the detected flow direction is other than the one selected. | ||||||
| 18 | Flow switch device for medical applications | US360994 | 1994-12-20 | US5445622A | 1995-08-29 | Eric W. Brown |
| An intravenous system for monitoring the flow of IV fluids to a patient is embodied in a wristwatch sized unit for placement on the patient. The device includes a flow indicator switch capable of detecting when flow starts or stops. In one embodiment, the range of flow rates which may trigger a signal is increased using a plurality of sensor elements. The flow indicator switch uses a conical chamber with a movable flow element which reacts to the motion of the IV fluid. A light emitter-sensor arrangement provides a means for converting physical displacement into an electrical signal indicating displacement of the movable member. | ||||||
| 19 | Apparatus for observing the suction of a sample having an automatic regulation fuction | US918764 | 1992-07-27 | US5400664A | 1995-03-28 | Katsuhiko Kio |
| In an automatic analyzer such as blood analyzer, it is important to observe whether the sample, such as a blood sample, is sucked correctly or not. In an apparatus for observing suction of a sample, comprising a sample suction tube, a luminous element for emitting light toward the sample suction tube being driven by a driving circuit, a photo sensor for receiving the light from the sample suction tube, and a judging circuit for judging the sample suction on the basis of the signal from the photo sensor, a controller is provided in order to drive the luminous element so that the output (Vp) of the photo sensor may be nearly the reference value (Vr) before a sample suction, and to drive the luminous element so as to hold the driving state during the sample suction. Thus, the sensitivity adjustment of the apparatus for observing suction of a sample may be automated, and the observing capability of the apparatus is enhanced. | ||||||
| 20 | Fluid flow sensor having light reflective slider | US123678 | 1987-11-23 | US4945344A | 1990-07-31 | Jonathon E. Farrell; Mark C. Anthony |
| A flow sensor for detecting the absence of a minimum fluid flow in a sprinkler system. The fluid acts upon a vane positioned in the fluid path. Movement of the vane controls the position of a slider. The slider's surface has reflective and nonreflective ends which, in response to the vane's movement reflect or absorb light from a light emission and detection means. The voltages from the light emission and detection means are monitored for indications of the fluid flow. The sensor uses a two wire signal transmitting system. | ||||||
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