| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | Device for determining physical qualities of pressurized container contents | US156367 | 1980-06-04 | US4318227A | 1982-03-09 | William H. Gravert |
| A device is provided for determining the physical qualities, such as amount, ullage, temperature, etc., of liquids, through an operable service hatch, of such tanks containing the liquid and vapors of the liquid and/or an inert gas above the liquid without lowering the pressure or allowing the pressurizing gas or vapors to escape to the atmosphere. | ||||||
| 182 | Drop-weight material level indicator | US36824 | 1979-05-07 | US4255859A | 1981-03-17 | Kenneth J. Klieman |
| A drop-weight type material level indicator apparatus, method and system wherein an optical disc rotationally coupled to an idler pulley in a modular sensor unit mounted at the top of a material storage bin generates counting pulses as a cable trained over the idler pulley lowers a drop weight. The counting pulses are fed in a remote readout unit to an up/down counter selectively for indicating in an up-counting mode of operation the ullage or head space between the sensor and material level, and in a down-counting mode of operation the level of material in the storage bin. Switches are provided for presetting the counter in the down-counting mode of operation to a value corresponding to bin height. Each modular sensor unit is individually connected to the remote readout unit and is capable of rewinding its associated drop weight cable independently of the readout unit so that a subsequent sensor unit may be selected and a material level indication obtained while the previously-selected sensor returns to the rest condition. | ||||||
| 183 | Indication of levels in receptacles | US9944 | 1979-02-06 | US4235423A | 1980-11-25 | Kenneth G. Kemlo |
| One form of the invention discloses an apparatus and a method for positioning the snorkel of a vacuum degassing apparatus beneath the interface of the molten metal and slag in a ladle utilizing means for determining the interface, which means comprises an electrode adapted for positioning within the ladle in electrical contact with the material, indicating means for indicating a first range of voltages produced at said electrode by an electrochemical reaction between the molten metal and the electrode as well as a second range of voltages produced at the electrode by an electrochemical rection between the slag and the electrode, with means for supporting the electrode independently of the ladle and adapted to enable the electrode to be raised or lowered within, and relative to, the ladle, wherein the electrode is moved to a position within the ladle and relative movement is subsequently produced between the electrode and the ladle whereby the position of the interface will be determined by noting a change in the voltage outputs from one range of voltages to the other, and thereafter relative movement between the ladle and the vacuum degassing apparatus is produced to position the lower opening to the snorkel beneath the interface. | ||||||
| 184 | Liquid level measuring apparatus | US755395 | 1976-12-29 | US4065968A | 1978-01-03 | Yoshihiko Sunagawa |
| A liquid level measuring apparatus consisting of a mechanism to convert the change in the liquid level into a rotational movement, a scanning apparatus to successively scan the magnetic-field generating electric conductors provided on a disc by means of a magneto-sensitive head caused to rotate by said mechanism, an electronic circuit to produce measured figures of said electric conductors scanned by said scanning apparatus as pulse signals, and a digital indicator caused to be operated by means of said signals produced by said electronic circuit. | ||||||
| 185 | Apparatus for operating a blast furnace | US3772504D | 1971-12-23 | US3772504A | 1973-11-13 | DEBRAY H |
| The apparatus includes means for comparing the rate of drop in the height of said burden with a predetermined normal rate of drop, means for indicating when the rate of drop in the burden height decreases a predetermined amount below normal, and means for indicating when the rate of drop in the burden height decreases a further predetermined amount below normal. Means are provided for determining when the blast pressure reaches a predetermined amount above normal and also for determining the rate of rise in the blast pressure. The pressure in the furnace is decreased when the blast pressure reaches the predetermined amount above normal, the rate of rise in the blast pressure reaches a predetermined value, and the rate of drop in the height of said burden decreases the first predetermined amount below normal, or when the blast pressure reaches the predetermined amount above normal and the rate of drop in the height of said burden decreases the second predetermined amount below normal.
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| 186 | Precision level measurement and control apparatus | US3729667D | 1971-06-17 | US3729667A | 1973-04-24 | TAYLOR W |
| The present system includes a plummet or weight which moves in response to gravity to come to rest on the top of the material, in the case of a granular or particulate solid, whose level is being measured, or to determine the upper surface, in the case of a liquid, whose level is being monitored. The plummet is connected to a support menas, such as a perforated tape, which in turn is coupled to drive a counter device. When the plummet stops moving downward the level can be read as a function of shaft position such as by a counter device, a shaft motion transmitter, pulser, or shaft encoder. In addition the support means is coupled to a take-up means which lifts the plummet upward in accordance with a periodic energization of the take-up means. The energization of the take-up means is controlled by a logic circuit which determines the period for the take-up action and the gravity probe.
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| 187 | Material level indicator | US3521367D | 1968-08-15 | US3521367A | 1970-07-21 | GRYNOVICH NICK J; LESNIAK STANLEY J |
| 188 | Means for measuring the amount of material in a storage bin | US3492730D | 1969-01-02 | US3492730A | 1970-02-03 | TIBERI JOHN |
| 189 | Radiation sensitive sludge level testing device | US3441737D | 1965-06-10 | US3441737A | 1969-04-29 | TOPOL GEORGE J |
| 190 | Liquid level gauge for frozen earth storage tank | US40513364 | 1964-10-20 | US3240064A | 1966-03-15 | SHARP HOWARD R |
| 191 | Remote bin level-indicating device | US10363961 | 1961-04-17 | US3128557A | 1964-04-14 | CHILDS JOHN E |
| 192 | Apparatus for measuring levels of materials in containers | US16443162 | 1962-01-02 | US3099158A | 1963-07-30 | BARKER JR WILLIAM E |
| 193 | Sounding rod seal for a blast furnace | US79175059 | 1959-02-06 | US2992486A | 1961-07-18 | RUTH HELMER A |
| 194 | Gaging device for oil tanks | US68129757 | 1957-08-30 | US2906471A | 1959-09-29 | HUFF JAMES L |
| 195 | Liquid level gauge | US67447257 | 1957-07-26 | US2856690A | 1958-10-21 | MACDONALD GEORGE H |
| 196 | Magnetized bob operated gauge hatch | US65003457 | 1957-04-01 | US2847762A | 1958-08-19 | QUIST HAROLD A |
| 197 | Gauge line wiper and plumb bob case | US43895854 | 1954-06-24 | US2779045A | 1957-01-29 | HARVEY HUGHIE B |
| 198 | Stock line recorders | US39744653 | 1953-12-10 | US2704401A | 1955-03-22 | MOHR JR ALBERT; GRILLI JOHN P |
| 199 | Apparatus for gauging | US11600649 | 1949-09-16 | US2668358A | 1954-02-09 | MOYER FREDERICK D |
| 200 | Liquid depth measuring device | US14648050 | 1950-02-27 | US2627660A | 1953-02-10 | SMITH PHILIP N |
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