| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 221 | Apparatus for taking soundings. | US1904198852 | 1904-03-18 | US773887A | 1904-11-01 | O'NEIL PATRICK |
| 222 | Gage for sand-boxes. | US1903171264 | 1903-08-29 | US757947A | 1904-04-19 | MOONEY THOMAS E |
| 223 | Stock-line recorder for blast-furnaces. | US1901043539 | 1901-01-16 | US677665A | 1901-07-02 | JOHNSON JOSEPH ESREY JR |
| 224 | Stock-indicator for blast-furnaces. | US1900031793 | 1900-10-02 | US674112A | 1901-05-14 | BAKER DAVID |
| 225 | Julius mohs | US596172D | US596172A | 1897-12-28 | ||
| 226 | thomson | US352589D | US352589A | 1886-11-16 | ||
| 227 | Febdinand e | US282620D | US282620A | 1883-08-07 | ||
| 228 | Shoal-indicator for ships | US275864D | US275864A | 1883-04-17 | ||
| 229 | Improvement in sounding-machines | US197800D | US197800A | 1877-12-04 | ||
| 230 | Improvement in shoal-indicators | US157930D | US157930A | 1874-12-22 | ||
| 231 | Apparatus attached to vessels for indicating the depth of water | US7826D | US7826A | 1850-12-10 | ||
| 232 | APPARATUS AND METHOD FOR WIRE LENGTH COMPENSATION IN SERVO GAUGE FOR INVENTORY MANAGEMENT APPLICATION | US15254693 | 2016-09-01 | US20180058960A1 | 2018-03-01 | Frank Van Bekkum; Ronald Schrier |
| A method includes measuring tensions on a measuring wire coupled to a displacer of a servo gauge. The servo gauge is configured to raise and lower the displacer using a drum around which the measuring wire is wound. Different measured tensions are associated with different segments of the measuring wire. The method also includes calculating or adjusting a measurement associated with material in a tank using the measured tensions to account for a change in a length of the measuring wire. Calculating or adjusting the measurement could include calculating one or more first length adjustments for one or more segments of the measuring wire that are wound around the drum, calculating one or more second length adjustments for one or more other segments of the measuring wire that are unwound from the drum, and combining the first and second length adjustments to identify a final length adjustment. | ||||||
| 233 | AUTOMATIC PRESSURE CORRECTION FOR LEVEL GAUGES IN STORAGE TANKS | US15207693 | 2016-07-12 | US20170307461A1 | 2017-10-26 | FRANK VAN BEKKUM; MICHIEL ALTHOF; ARD VAN SCHIE |
| A level gauge system for mounting on a roof of a semi-closed storage tank includes an automatic tank level gauge for determining a level reading for a liquid including at least one liquid component in the tank. A processor includes a memory storing pressure correction factors or a pressure correction factor equation for correcting the level reading for a measured gas pressure above the liquid in the tank. The processor is programmed for implementing choosing a selected pressure correction factor from the pressure correction factors or the equation based on a received current gas pressure above, and applying the selected pressure correction factor for automatically correcting the level reading provided by the tank level gauge to generate a corrected level reading which compensates for the current gas pressure above effects on the roof and on the level gauge. | ||||||
| 234 | Calibrating an Electromechanical Fill-Level Measuring Device | US15509577 | 2015-08-19 | US20170254693A1 | 2017-09-07 | Masashi Sano; Andreas Kaiser; Yoichi Kamei |
| An electromechanical fill-level measuring device comprising at least one displacement element, which is connected by means of a measurement wire windably at least with a measurement drum, at least one measuring shaft, with which the measurement drum is mechanically fixedly connected, wherein the shaft is held rotatably in at least one rotary bearing, at least one weight measuring system, which ascertains the effective weight of the displacement element and the measurement wire, and at least one servomotor, which is coupled with the measuring shaft and which rotates the measuring shaft corresponding to an ascertained weight measurement, so that an ascertaining of the relative movement of the measurement drum produced by a change of the liquid level to be measured is provided. The invention provides that a calibration mode of the weight measuring system of the electromechanical fill-level measuring device is provided, in which freely hanging displacement elements with defined mass are provided for ascertaining their weights on the measurement wire, after each change of the freely hanging displacement elements with defined mass a predefined rotational movement of the measurement drum is provided, and their ascertained weights are provided as a calibration values for the weight measuring system. | ||||||
| 235 | Self-contained, buoyant, and water-tight wireless flood detector | US13913934 | 2013-06-10 | US09582987B2 | 2017-02-28 | Kenneth G. Eskildsen; Robert E. Lee; Kevin G. Piel |
| A floatable flood detector has a watertight housing that carries internally a wireless transmitter and a fluid sensor. In the presence of sensed fluid, an alarm message can be transmitted by the transmitter to a displaced monitoring unit. The sensor has a portion exposed to the fluid of interest outside of the housing. The antenna is carried, at least at a fluid level, relative to the floating housing. | ||||||
| 236 | Device for measuring liquid level | US14235357 | 2012-07-26 | US09546893B2 | 2017-01-17 | Ludovic Riviere; Dominique Le Bouquin; Franck Menard; Nicolas Renard; Xavier Michaudet |
| Device (1) for measuring a liquid level, comprising: —a body (2) extending along a longitudinal axis (X) and having at least one open portion (5) in which at least one aperture (A) is formed in the wall of the body (2), —a loop (10) of electric wire positioned at least in the open portion (5) so that it can be in contact with the liquid and run substantially parallel to the longitudinal axis (X) of the body (2), —an electric power supply circuit (15, 16) for powering the loop of wire arranged in the body, the circuit comprising two end fittings (16) positioned in the open portion (5), each end fitting (16) being connected to one of the open ends (11) of the loop (10), the end fittings (16) being arranged in an offset manner along the longitudinal axis (X) of the body (2). | ||||||
| 237 | Liquid level transmitter utilizing low cost, capacitive, absolute encoders | US13483528 | 2012-05-30 | US09513152B1 | 2016-12-06 | Samuel Dirk Holcomb |
| A liquid level monitoring and transmission system includes a mechanical assembly in communication with the liquid in a container and a dual electronic encoder assembly in communication with the mechanical assembly for determining liquid level. The dual electronic encoder assembly includes a first encoder for encoding data indicative of fine level measurements and a second encoder for encoding data indicative of coarse level measurements. The system further includes at least one processor for controlling operation of the first and second encoders and for processing encoded data therefrom and a power control system. | ||||||
| 238 | System for measuring level of dry bulk material in container | US14098430 | 2013-12-05 | US09360360B2 | 2016-06-07 | George R. Eakin |
| A system for measuring a level of dry bulk material within a container has a columnar device supported vertically within the container. The columnar device has a closed lower end and openings through a sidewall thereof for allowing dry bulk material within the container to flow into and out of the columnar device. A load cell is used to measure a weight of the dry bulk material within the columnar device, which is then correlated to the level of dry bulk solids within the container. The columnar device and the sidewall openings therein can be provided in various shapes and configurations. | ||||||
| 239 | EXPLOSION-PROOF DUST OF ELECTROMECHANICAL LEVEL MEASURING DEVICE | US14533102 | 2014-11-05 | US20160123733A1 | 2016-05-05 | Ching-Cheng KUO; Yun-Lung LO; Yi-Liang HOU; Chao-Kai CHENG |
| An explosion-proof dust of electromechanical level measuring device includes: a explosion proof enclosure (100), formed with a safe chamber area (101) and a hazardous chamber area (102) and a power shaft sleeve (120) is provided for communicating the above two; a power unit (200) disposed inside the safe chamber area (101); a control module (300) disposed inside the safe chamber area (101) and electrically connected to the power unit (200); a capstan (400) disposed in the hazardous chamber area (102); a power shaft (500) sleeved in the power shaft sleeve (120) and two ends thereof are respectively connected to the power unit (200) and the capstan (400); and a pair of bearings (610, 620) disposed in the power shaft (120) and spaced with an interval thereby forming a fireproof path (601). | ||||||
| 240 | Electromagnetic pushing and knocking-type object detector | US14000564 | 2012-03-07 | US09109923B2 | 2015-08-18 | Yihua Chen |
| A level sensor, particularly an electromagnetic pushing and knocking-type object detector, comprising: a magnetic swinging rod, an electromagnet that is disposed on one side of the magnetic swinging rod, and an electronic module that controls the electromagnet in driving the magnetic swinging rod to swing, and amplifies, processes, and time-delay outputs the swinging signals of the magnetic swinging rod, which swinging signals are collected by the electromagnet, said magnetic swinging rod is suspended with a suspension device on one side of a main housing, and the electromagnet, which is composed of an electromagnet iron core and an electromagnet coil, is disposed inside the main housing. The electric module comprises a power supply circuit, a pulse generation circuit, a pulse driving circuit, a signal amplification circuit, a signal processing circuit, and a signal time delay output circuit, and the aforementioned circuits are all disposed in the main housing or are isolated from the main housing and enclosed separately. The present invention has the advantages of high sensitivity, accuracy, and reliability; has a wide range of applications; is maintenance-free; and features a long service life. | ||||||
QQ群二维码
意见反馈
意见反馈