| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | Heat exchange units | US730868 | 1976-10-08 | US4151399A | 1979-04-24 | David W. B. Beale |
| A heat exchange unit for delivery of moulding sand in foundries. The sand is heated or cooled, as desired, by contact in its fluidized state with a heat exchange surface. The delivery temperature may be thermostatically controlled. The unit is capable of intermittent delivery, fluidization ceasing when delivery ceases so that the sand in direct contact with the heat exchange surface insulates the bulk of the sand therefrom. Delivery temperature on recommencement is therefore substantially the same as before cessation. By-pass means may be provided to ensure delivery of sand in the event of malfunction of the unit or during maintenance. | ||||||
| 162 | Moisture measuring and totalizing system | US38923073 | 1973-08-17 | USRE28422E | 1975-05-20 | |
| 8. A SYSTEM FOR MEASURING AND TOTALIZING THE MOISTURE ENTRAINED IN AGGREGATE MATERIAL DISCHARGED FROM A STORAGE VESSEL TO PERMIT SAID ENTRAINED MOISTURE TO BE COMPENSATED FOR WHEN THE AGGREGATE IS MIXED WITH WATER COMPRISING: A PLURALITY OF ELECTRICAL PROBES ARRANGED IN AN ARRAY WHICH POSITIONS SAID PROBES FOR PROJECTION INTO A PLURALITY OF PORTIONS OF A MOVING AGGREGATAE STREAM DISCHARGED FROM SAID VESSEL; MEANS FOR MOUNTING SAID PROBES SO THAT THE AGGREGATE IN SAID VESSEL FLOWS IN A STREAM OVER SAID PROBES; ELECTRICAL CIRCUIT MEANS INCLUDING AN ENERGY SOURCE CONNECTED TO SAID PROBES AND CREATING AN ELECTRICAL REFERENCE SIGNAL WHICH VARIES IN AMPLITUDE PROPORTIONAL TO THE CONDUCTIVITY AND HENCE THE ENTRAINED MOISTURE CONTENT OF THE STREAM OF AGGREGRATE FLOWING PAST PROBES IN EACH OF SAID PORTIONS OF SAID STREAM; SIGNAL-ACCUMULATING MEANS COMPRISING A VARIABLE SPEED ELECTRICAL SERVOMOTOR WHICH IS QUICKLY RESPONSIVE TO SAID VARIATIONS IN AMPLITUDE OF SAID REFERENCE SIGNAL TO PROPORTIONATELY VARY THE OUTPUT SPEED OF A MOTOR SHAFT, SAID SERVOMOTOR BEING CONNECTED TO SAID CIRCUIT MEANS TO PRODUCE OUTPUT REVOLUTIONS OF SAID MOTOR SHAFT PROPORTIONAL TO BOTH THE TIME INTERVAL OF AGGREGATE FLOW AND TO SAID SIGNAL VARIATIONS PRODUCED BY THE VARIATIONS IN ELECTRICAL CONDUCTIVITY OF SAID FLOWING AGGREGATE STREAM AS SENSED BY SAID PROBES, SO THAT THE REVOLUTION OF SAID MOTOR SHAFT IS THEREBY PROPORTIONAL TO THE TOTAL ENTRAINED MOISTURE IN THE QUANTITY OF AGGREGATE FLOWING PAST SAID PROBES; AND MEANS ACTIVATED BY SAID MOTOR TO PROVIDE A SIGNAL REPRESENTATIVE OF THE TOTAL ENTRAINED MOISTURE IN THE AGGREGATE DISCHARGED FROM SAID VESSEL DURING SAID TIME INTERVAL.
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| 163 | Apparatus for cooling and drying solid material in granular or powder form | US20327471 | 1971-11-30 | US3863656A | 1975-02-04 | RICHARD GERARD YVES |
| An apparatus for the cooling and drying of powdery and/or granular material such as foundry sand is disclosed. The sand to be cooled is conveyed throughout the length of the apparatus over a perforated plate and a flow of air is directed upwardly through the perforations in the plate to suspend the material in a fluidized state. The material is conveyed throughout the length of the apparatus by moving scrapers or blades passing along the plate whereby the material receives a whirling motion during its travel. The material leaving the apparatus is cooled preferably to room temperature and is absolutely dry.
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| 164 | Moisture compensating system | US3778035D | 1971-10-18 | US3778035A | 1973-12-11 | MACKINNEY P |
| A system for measuring the moisture entrained in a batch of aggregate material discharged from a storage hopper and for compensating for said moisutre in a batch mixing apparatus. The system includes a plurality of electrical probes arranged to project into a free-falling stream of aggregate material in a plurality of vertical portions of said stream, as said stream is discharged from the storage hopper. Electrical circuit means connected to said probes create an electrical signal proportional to the conductivity and hence the moisture content of each vertical portion of the aggregate stream. Signal accumulating means is also provided to accumulate and integrate said electrical signals during the time interval of aggregate material flow past said probes to provide a resultant electrical signal which is proportional to the total entrained moisture in the aggregate batch. Data recording means is also provided to provide indicia of said moisture content of said aggregate in response to said resultant signal.
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| 165 | Gravity flow sand reclamation process | US3686034D | 1970-10-14 | US3686034A | 1972-08-22 | ROTHSCHILD JOHN J |
| A GRAVITY FLOW, THERMAL RECLAMATION PROCESS FOR CONTINUOUSLY RECOVERING USED FOUNDRY SAND HAVING A CARBONACEOUS COATING THEREON WHEREIN A SUBSTANTIALLY FREE FLOWING, DOWNWARDLY GRAVITATING DISPERSION OF SAND PARTICLES IS PASSED THROUGH A VERTICALLY DISPOSED FURNACE AND SEQUENTIALLY THROUGH A SERIES OF VERTICALLY DISPLACED SAND DISPERSION GRATES TRANSVERSLY MOUNTED THEREIN WITH OPEN ZONES INTERMEDIATES THE GRATES WHEREBY THE FREE FALLING SAND PARTICLES ARE CONTINUOUSLY INTERCHANGED ALONG THE LENGTH OF THE FURNACE BETWEEN VERTICAL PLANES AND EACH SAND PARTICLE IS EXPOSED TO RADIANT HEAT AND OXYGEN IN AT LEAST ONE OF THE OPEN ZONES DURING ITS PASSAGE THROUGH THE FURNACE TO ACHIEVE RAPID AND SUBSTANTIALLY COMPLETE COMBUSTION OF THE PARTICLE COATING.
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| 166 | Method for handling and cooling foundry sand | US3604493D | 1969-07-07 | US3604493A | 1971-09-14 | SCHUMACHER JOSEPH S |
| The invention disclosed herein relates to a novel method of handling and cooling foundry sand. The method includes the steps of preparing a quantity of the foundry sand, conveying a portion of the sand to a molding machine and forming molds therefrom, casting a metal into the molds, breaking up the molds, and mixing the unused sand with the used sand. Only a portion of the usedunused sand mixture is subsequently mulled, the remainder being retained in a storage tank for subsequent cooling. By using this method, the temperature of the foundry sand can be controlled and the use of costly cooling apparatus can be eliminated.
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| 167 | Method of and structure for conditioning granular material | US3519252D | 1966-09-08 | US3519252A | 1970-07-07 | DIETERT HARRY W; JAMESON HOWARD L |
| 168 | Shell sand treating apparatus and method | US3480265D | 1968-01-04 | US3480265A | 1969-11-25 | DEVE VAGN |
| 169 | Elevator-cooler apparatus for pulverized materials such as foundry sands | US3432940D | 1967-01-19 | US3432940A | 1969-03-18 | RONCERAY ROBERT ANDRE MARCEL; RONCERAY LENA SARAH; RONCERAY ANDREE JACQUELINE LAU; RONCERAY FRANCOISE MONIQUE MAR |
| 170 | Apparatus for conditioning material | US50292365 | 1965-10-23 | US3406950A | 1968-10-22 | MCILVAINE ROBERT L |
| 171 | Method and apparatus for measuring and adjusting the moisture content and therewith the formability of granular material such as foundry sand and the like | US56886466 | 1966-07-29 | US3373753A | 1968-03-19 | HERMANN JACOB |
| 172 | Sand cooler | US54465166 | 1966-03-30 | US3358380A | 1967-12-19 | MURPHY OSCAR V |
| 173 | Apparatus for conditioning particulate material | US41656664 | 1964-12-07 | US3348819A | 1967-10-24 | MCILVAINE ROBERT L |
| 174 | Structure for and method of cooling granular material | US49237565 | 1965-10-04 | US3324566A | 1967-06-13 | DIETERT HARRY W |
| 175 | Process and apparatus for cooling foundry sand on a vibratory conveyor | US28321563 | 1963-05-27 | US3205543A | 1965-09-14 | MORRIS JOHN M; EVANS ROBLEY W |
| 176 | Method and apparatus for cooling and reconditioning molding sand | US14258661 | 1961-10-03 | US3175686A | 1965-03-30 | HANS RIETH |
| 177 | Sand cooling plant | US71827358 | 1958-02-28 | US3161485A | 1964-12-15 | ERWIN BUHRER |
| 178 | End point moisture control for solid granular material | US71014758 | 1958-01-20 | US3000065A | 1961-09-19 | DIETERT HARRY W; DIETERT RANDOLPH L |
| 179 | murphy | US2899070D | US2899070A | 1959-08-11 | ||
| 180 | End point moisture content control apparatus for sand | US67482257 | 1957-07-29 | US2886868A | 1959-05-19 | DIETERT HARRY W; DIETERT RANDOLPH L |
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