子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 61 | Method for assessing the operation of a conveying apparatus | US10798257 | 2004-03-12 | US20050261872A1 | 2005-11-24 | Stephen McIsaac; Ronald Glowe |
| The present invention is directed to an apparatus and method for measuring the weight of material such as rock, earth, wood, pulp, grain, gravel, sand, ore, cement etc. being processed or moved by an apparatus such as a conveyor, apron conveyor or bucket elevator driven by an electrical motor. The apparatus comprises a means for measuring the electrical energy consumed by the motor powering the apparatus during operation of the apparatus and a calibration formula for converting the power consumption of the motor to tonnage per hour of raw material processed by the apparatus. A continual record is kept of all “No-load” and “start-up load” time during the recording process and these figures are totalized along with tonnage for the recording period. In a preferred embodiment of the invention, the apparatus is provided with a temperature sensor to monitor the ambient temperature and apply a temperature calibration factor to adjust the output of the apparatus based upon the ambient temperature. In another embodiment of the invention, the apparatus is provided with a belt speed sensor to monitor the speed of the belt and adjust the output should stalling or slippage of the belt occur. A third embodiment of the invention, the apparatus is provided with a digital inclinometer to monitor change in angle of conveyor frame on a stacker conveyor and adjust the output in tonnage based on new angle of operation. The final embodiment of the invention, the use of No-load testing to re-calibrate the conversion formula by adjusting the formula by the difference in No-load reading compared to the No-load taken at the time of initial calibration of the apparatus. | ||||||
| 62 | Conveyor apparatus and commodity inspecting equipment utilizing the same | US10765162 | 2004-01-28 | US06958452B2 | 2005-10-25 | Atsushi Takahashi |
| A weighing conveyor having an increased weighing accuracy. This conveyor includes a conveyor apparatus 3 for transporting an article X to be weighed, a load detector 5 for detecting the weight of the article X to be weighed, and a housing 7 for accommodating the load detector 5, in which a fixed end 5b of the load detector is connected with the housing 7 and a free end 5c thereof is connected with a support member 120 for supporting the conveyor apparatus 3, and the support member 120 protrudes outwardly of the housing 7 from a bottom surface thereof. | ||||||
| 63 | Center of gravity and dimension measuring device and apparatus | US10776653 | 2004-02-10 | US20040162632A1 | 2004-08-19 | Victor Nicholas Prutu |
| A method and apparatus for measuring and sorting parcels, including the concept of determining at least one component of the gravity center of said parcels. Determination of the gravity center component includes the use of a tilting action in combination with the use of sensors to sense the movement of the parcels as they tilt. Another concept includes the use of sensors to determine whether a parcel is sufficiently rigid to provide a tilting action, or whether the parcel is flexible and thus does not provide a tilting action so much as it provides a flexing action over the pivot point. | ||||||
| 64 | Scale with sideways ramp | US09764727 | 2001-01-19 | US06538216B2 | 2003-03-25 | Alexis Batista; Jonathan Batista; Juan Batista |
| A scale with sideways ramp (10) having a bottom conveyor (12A) which has a bottom conveyor belt (12AA) rotatably mounted on at least one bottom conveyor bottom spindle (12AB) and on at least one bottom conveyor top spindle (12AC). The bottom conveyor (12A) further has a bottom conveyor left support (12ADA) and a bottom conveyor right support (12ADB) each securely connected at a top end thereto. A bottom end of each of the bottom conveyor left support (12ADA) and the bottom conveyor right support (12ADB) are connected to opposite sides of a bottom conveyor (16). A top conveyor (12B) which has a top conveyor belt (12BA) rotatably mounted on at least one top conveyor bottom spindle (12BB) and on at least one top conveyor top spindle (12BC). The at least one top conveyor bottom spindle (12BB) is rotatably connected to the bottom conveyor top spindle (12AC) by a second motor connector (14B). A conveyor flap (12D) is movably securely mounted at opposite top corners to the bottom conveyor left support (12ADA) and the bottom conveyor right support (12ADB). A motor (14) is connected to the top conveyor top spindle (12BC) by a first motor connector (14A). | ||||||
| 65 | Conveyor, and weighing machine and metal detecting machine using the conveyor | US09700758 | 2000-11-20 | US06509533B1 | 2003-01-21 | Osamu Tanaka; Hiroyuki Sekiguchi; Norikazu Murata |
| There is provided a conveyor capable of carrying out attachment and detachment of a portion of carrying an article easily and safely by a simple constitution in cleaning or the like and preventing parts from falling in attaching and detaching thereof. A support unit is provided with a carry unit and a motor unit respectively attachably and detachably. The carry unit is attachable to and detachable from the support unit in an upward direction. An output shaft of the motor unit can be connected to and detached from a drive roller of the carry unit by first and second connecting pieces. When a fixed state of the motor unit is released by releasing clamps, connection between the connecting peices is released and a state of fixing the carry unit to the support unit is released by releasing clamps, so that the carry unit can be removed in the upward direction. | ||||||
| 66 | Weighing apparatus and method | US09511480 | 2000-02-23 | US06479767B1 | 2002-11-12 | Heinz P. Zicher |
| A weighing transducer is secured onto a fixed base. The fixed base is positioned in order to allow the weighing transducer to rest securely over a conveyor belt. An electrically actuated gripper is connected to the weighing transducer allowing the weighing transducer to accurately weigh any item freely suspended from the electrically actuated gripper. The conveyor belt works synchronously with the holding device in order to obtain an accurate weight reading by taking a no load weight reading prior to the weighing of each item to be measured. The conveyor belt delivers an item to be weighed to the electrically actuated gripper which in turn captures the item. When the item is delivered to the electrically actuated gripper, the conveyor belt stops. The item is captured by the electrically actuated gripper and the conveyor belt is lowered to a height sufficient to enable the item to be suspended freely on the electrically actuated gripper. With the item suspended on the electrically actuated gripper, the weighing transducer is now able to acquire an accurate measurement of the weight of the item. Once the item is weighed the conveyor belt rises and the weighed item is then released by the electrically actuated gripper and conveyed away from the electrically actuated gripper while another item is conveyed to the electrically actuated gripper. | ||||||
| 67 | Weighing system of the dynamic type | US09582219 | 2000-07-20 | US06408223B1 | 2002-06-18 | Henrik F. Skyum; Ulrich Carlin Nielsen |
| For a weight controlled building up of batches of foodstuff pieces, the pieces are supplied serially with mutual spacing and are weighed-in on a dynamic weigher using a “single weighing algorithm”. Quite similar weighers are known operating for “summation or flow weighing”, which does not require the supplied pieces to be supplied one by one while making use of a special algorithm. With the invention these technics are combined with the aim of handling an unorderly supply flow, in which there are both separated and non-separated pieces, in that by means of a detector it is determined whether the pieces are sufficiently separated for being “single weighed” for batching purposes, while the pieces will otherwise be flow weighed e.g. for the formation of large batches. One and same weigher may be used in both instances, inasfar as based on the said detection it is currently decided whether the weighing signal should be processed in accordance with one algorithm or the other, all according to what is most suitable in the actual operational situations. | ||||||
| 68 | Flow rate measuring system for crops supported on a conveyor | US09246740 | 1999-02-08 | US06237427B1 | 2001-05-29 | James C. Helfrich; Jeremy A. Helfrich |
| A flow rate measuring system for conveyed material includes a conveyor including a frame and a material supporting surface moveably supported by the frame. The flow rate measuring system utilizes height measurement devices which are responsive to the height of the material supported on the material supporting surface of the conveyor for taking material height measurements. A signal generating device provides an output signal in response to the height measurement device. The height of the material on a conveyor of known width and known speed allows the calculation of volume or mass flow rates. The height measurement device typically comprises a deflection impact surface which is a finger or paddle assembly. The flow rate measuring system for conveyed material additionally may include a signal processing device such as computer for taking and recording height measurements as specific intervals. The signal processing device may calculate an instantaneous flow rate of conveyed material relative to the height measurement of material supported on the material supporting surface of the conveyor. | ||||||
| 69 | Bulk materials loading device | US09367479 | 1999-08-12 | US06199684B1 | 2001-03-13 | Alan Huth |
| Bulk material is fed by a conveyor (10) into a hopper at the upper end of an upright extendible conduit (12). A fractionally opening gate (14) at the lower end of the conduit controls the rate at which the material in the conduit is discharged onto a discharge conveyor (15). Level sensors (13) detect the level of material in the hopper (18). A programmable logic controller (17) has its inputs connected to the sensors (13) and a belt weigher (11) associated with the conveyor (10), and controls the opening of the gate (14) to maintain a substantially full column of material in the conduit (12). The material discharged into the hopper (18) therefore moves slowly down the conduit in a controlled fashion, with minimal dust generation and product degradation. | ||||||
| 70 | Acoustic volume and torque weight sensor | US829211 | 1997-03-31 | US5800262A | 1998-09-01 | David P. Andersen; Michael Farmer |
| A device to measure the volume and weight of a harvested grain crop during the harvesting of the grain crop with a weight measurement member including an elevator for moving grain from a lower elevation to a higher elevation with the elevator having a rotatable belt and a set of paddles thereon for moving grain from the lower elevation to the higher elevation with a torque sensor to determine the increase in torque on the shaft as a result of having to raise the kernels of grain from the lower elevation to the higher elevation and an acoustic volume measurement member to obtain information on the depth of the grain that is correlatable to volume of the harvested crop. | ||||||
| 71 | Computer controlled weighing and labelling apparatus | US373043 | 1995-01-17 | US5684275A | 1997-11-04 | Sidney S. Tolson |
| The present invention provides a conveyorized system for weighing and labeling products in packages and having multiple conveyor sections each of which is driven by an individual variable speed motor. A computer is supplied and connected to each of the variable speed motors. The computer contains data relating speed of operating each motor for a particular package style in the computer memory. An operator inputs a package code to the computer, which locates the package information stored in memory and signals the variable speed motors as to the desired speed for each conveyor. Similar information is maintained in the computer memory for each package as to dimensions, such that the computer signal output includes commands to several servo motors which are connected to adjust spacing between vertical control belts to accommodate the package and the positioning of a label applicator to suit. A further control involves a pair of sensors placed near the exit of the system to detect a blockage of package flow and, through computer programmed analysis, command an input conveyor to adjust operating speed accordingly. | ||||||
| 72 | Dynamic weighing method of determining a load measurment value and the resolution thereof | US157082 | 1993-12-03 | US5585604A | 1996-12-17 | Lauri Holm |
| A method of determining a load measurement value in dynamic weighing of an object passing over a weighing platform supported by load-sensing means generating a load-dependent weighing signal (S) which rises from a basic level to a peak level, to subsequently fall to the basic level. An at least approximative signal peak value (S.sub.peak) is determined as representing the weighed load. The weighing signal is integrated at least during a time interval (t.sub.1 -t.sub.5) about the point where the signal peak value is determined in order to produce a summation result, the time interval being recorded as a measurement time factor (M). Further, a form factor (F) for the weighing signal is calculated in the form of the ratio of the summation result, i.e., the integrated area under the weighing signal (S) for the time interval (t.sub.1 -t.sub.5), to a corresponding rectangular area that would be obtained in static weighing, i.e., the product of a peak value and the above time interval. Finally, the load measurement value is determined as the above-signal peak value with a resolution depending on a quality factor Q=F.multidot.M.multidot.k, wherein k is a factor chosen while taking into consideration the weighing conditions. | ||||||
| 73 | Apparatus for weighing continuously flowing flowable material | US284623 | 1994-10-17 | US5495773A | 1996-03-05 | Henry T. Olesen |
| An apparatus for weighing continuously flowing flowable material, in which the mass flow is determined as a function of measurements of forces exerted on at least one plate (1) in contact with the flowing material. The apparatus is adapted to perform at least two of the measurements in substantial dependence of the distribution of weight, such as between third points (A, B), on a basically rectilinear inclined plate, on which the material flows slidingly. The results of the measurements may be used for creating an expression of the mass flow, the accuracy of which is independent of the flow velocity, density and friction of the material. | ||||||
| 74 | Pipe chain conveyor | US103416 | 1993-08-06 | US5455395A | 1995-10-03 | Hans W. Hafner |
| In order to improve the metering accuracy of a pipe chain conveyor it is proposed that at least one section of a pipe loop, disposed between the filling and discharge openings, is movably resiliently mounted and is supported on at least one force measuring device. The at least one section of the pipe loop supported by the at least one measuring device can be in the form of a pipe bend or a straight pipe section, and can be mounted to a remaining, stationary portion of the pipe loop in yielding manner by means of flexible intermediate elements in order to act on the force measuring device arranged at a distance therefrom. | ||||||
| 75 | Checkweigher | US942647 | 1992-09-09 | US5434366A | 1995-07-18 | David A. Troisi |
| A method and apparatus is disclosed for use in weighing products having circular or oval footprint configuration. A conveyor having a pair of parallel conveyor elements arranged to underengage the footprint only adjacent the periphery thereof transports the products one at a time across a weigh pan or scale device, whose length in the direction of conveyor movement is selected as the lowest value required to achieve a desired settle time for the weigh pan. Preferably, the length of the weigh pan is chosen to be essentially equal to the diameter of products to be weighed. | ||||||
| 76 | Emptying balance having a product flow setting device | US16879 | 1993-02-11 | US5411174A | 1995-05-02 | Thomas Braun; Werner Gwinner |
| An emptying balance contains a product flow setting device, which contains a rotary slide valve. The angle between a rotary slide valve wall and the facing fixed wall is consequently dependent on the opening position of the rotary slide valve. A fine blocking flap is also provided which is opened by means of two pressure cylinders arranged in series, and which are individually controllable. For subsequent metering of small product quantities only one of the two pressure cylinders is operated and this only leads to a limited opening of the fine blocking flap. | ||||||
| 77 | Conveyor belt with combined belt guide and belt drive rollingly engaging belt on horizontal carrying run, between loading station and weighing station | US779283 | 1991-10-18 | US5376950A | 1994-12-27 | Olof Soderholm; Arne Soderholm |
| A metering belt feeder for gravimetrically measuring a flow of material with the aid of an endless belt which includes a loading zone (10), a weighing zone (10) and a belt drive which is located between these two zones. The belt is caused to move in a plane above both the loading zone and the weighing zone. The belt drive means is constructed so as to draw the belt from the loading zone in the absence of belt-slipping and to project the belt over the weighing zone, and also so as to guide the belt against sideways movement. | ||||||
| 78 | Motorized weighing conveyor | US592725 | 1990-10-04 | US5170857A | 1992-12-15 | Howard C. Phillips; Jeffrey Hoffman; Michael B. Henrickson |
| A dynamic check weighing system wherein the drive motor is positioned within the channel members of the frame and spaced from the ends thereof so as to provide a dynamically balanced system resulting in accurate and consistent weighing. The conveyor belt is of an open mesh type which affords positive engagement by a drive sprocket and positive tracking by a guide sprocket. A direct drive arrangement is employed thus eliminating drive components. There is provided a weighing system which employs fewer parts, thus, reducing maintenance and production costs. | ||||||
| 79 | Gravimetric metering apparatus for bulk materials | US570557 | 1990-08-21 | US5125535A | 1992-06-30 | Hans-Armin Ohlman |
| Gravimetric metering apparatus for bulk materials is provided, in which a vertically-compliant horizontal platform is supported above a load cell in an operative relationship therewith for detection of weight on the platform. A thin rotating flexible disk is moveable cyclically from a dispensing location, thence across the upper surface of the platform, and thence to a discharge location. Data logging and processing equipment connected to the load cell tracks and adds periodic signals from the load cell, whereby with appropriate calibration the total mass passing across the load cell may be measured, whereby metering may be effected. | ||||||
| 80 | Weighing device for checkout counters and the like | US479298 | 1990-02-13 | US5046570A | 1991-09-10 | Nils-Erik Emme; Rune Olsson |
| An article transporting and weighing device for use at checkout counters and the like includes a series of successively-disposed conveyors operable for transporting articles thereon and therealong to a collection station, and a weighing device located under a central one of the conveyors. When an article to be weighed is being transported along the conveyors, movement of the central (i.e. scale) conveyor is halted with the article positioned thereon, whereupon the weight of the article is determined by the weighing device, and the scale conveyor is then restarted to continue transport of the article to the collection station. | ||||||
QQ群二维码
意见反馈
意见反馈