1509results about "Weighing apparatus with automatic feed/discharge" patented technology

In order to provide a combination weighing apparatus having an automatic filter adjusting capability which is effective to secure a weighing accuracy and also to adjust a filter characteristic of a digital filter having a short response time, the filter characteristic is automatically adjusted, based on a result of comparison of respective vibration components U of filtered weight signals FW1 to FWn with a permissible level US of the vibration components, so that the respective vibration components U of the filtered weight signals FW1 to FWn can attain a value approximating to the permissible level US, but not exceeding the permissible level US. In this way, by damping the vibration components U down to a value within the permissible level US, the weighing accuracy can be secured and, on the other hand, by damping the vibration components U down to a value approximating to the permissible level US, the filter characteristic can be obtained quickly in a short time.

A heated water dispensing apparatus has been described. The heated water dispensing apparatus includes a reservoir for retaining a quantity of water, a selector for selecting a temperature of water and a volume of water to be dispensed, and a controllable dispense valve for automatically dispensing water from the reservoir. The heated water dispensing apparatus also includes a weighing assembly which generates a weight control signal relating to the volume of water dispensed through the dispense valve and at least one device outlet valve for providing heated water to a remote device. The heated water dispensing apparatus also includes a controller. The controller operates the dispense valve in accordance with the weight control signal so that a selected volume of water is automatically and accurately dispensed. The controller also operates the dispense valve to prevent dispensing of water through the dispense valve before water of a selected temperature has been produced. The controller operates the device outlet valve so that a predetermined quantity of water at a predetermined flowrate and a predetermined temperature is dispensed to a selected remote device.

A delivery unit for providing aggregate to a worksite, such as a wellsite location. The unit may include a mobile chassis for accommodating a plurality of modular containers which in turn house the aggregate. As such, a weight measurement device may be located between each container and the chassis so as to monitor aggregate levels within each container over time. The units may be particularly well suited for monitoring and controlling aggregate delivery during a fracturing operation at an oilfield. The modular containers may be of an interchangeable nature. Furthermore, a preferably wireless control device may be provided for monitoring and directing aggregate delivery from a relatively remote location.

A gravimetric weigh scale blender having a plurality of hoppers 41, 42 and 43 discharging into a weigh chamber 14. The hoppers are funnel-shaped, each terminating in a discharge opening which permits flow of material from the hopper through a metering device 19 or 38 into a weigh chamber 14. Two of the hoppers are mounted for horizontal sliding displacement in the frame of the blender and a valve is provided at the bottom of each hopper to automatically close the hopper when it is moved horizontally. The valve consists of a shoe 53 slidable on the bottom of the funnel of the hopper to be operated by a saddle 51 on the frame so as to allow flow through the opening when the hopper is in its operating position but is displaced to close the opening when the hopper is moved away from the operating position. An improved metering device is also disclosed which comprises an auger device 70 which includes a trough 71 pivotally mounted under one of the hopper openings for pivotal movement between an operative position adjacent the opening and a clean-out position remote from the opening. An auger is provided in the trough which may be driven at the desired speed to provide a positive metered flow through the trough from the hopper's discharge opening into the weigh chamber.

A method for weight blending of granular materials comprises at a remote site generating a command for desired operation of granular material weight blending apparatus; encoding said command into transportable time-stable machine readable tangible storage media; transporting said media to a bar code reader operatively connected to said granular material weight blending apparatus; scanning the tangible media having the command encoded thereon to read the command; and providing the read command as input to a in microprocessor operatively connected to said granular material weight blending apparatus for regulating operation of the same.

A method for weighing and portioning items utilizing a robot device. The robot device includes a grip, e.g., a suction cup, to remove an item from a delivery station to a receiving area for placement into a particular batch. The method involves placing the items at delivery station according their weight and the weight of items already moved to a receiving area, selecting the items for a batch from the combination of items available for movement to the batch, and selective batching of the items in weight-determined and, optionally, type-determined groups.

A refrigerant charging system for charging a refrigeration system with refrigerant includes a refrigerant source, a storage vessel, input and output lines, and a device for detecting mass of refrigerant within the storage vessel. The input line fluidly connects the refrigerant source to the storage vessel, and the output line extends from the storage vessel and is adapted to connect to the refrigeration system. The system also includes an input control valve disposed between the storage vessel and the refrigerant source, and an output control valve disposed between the storage vessel and the refrigeration system. A heater is connected to the refrigerant source for raising the temperature of refrigerant within the refrigerant source. A method of charging a refrigeration system is also disclosed. The system and method are useful to charging the refrigerant system of an automotive vehicle, among others.

A system for accurately dispensing controlled amounts of viscous material. The system includes a pressurized supply of the viscous material, a dispenser connected with the pressurized supply and a feedback control for ensuring that a discrete dispensed amount corresponds closely to the desired dispensed amount for a particular application. The different methods of feedback control include changing pressure of the pressurized supply after measuring a dispensed amount and comparing the dispensed amount with a stored value representing the desired amount. Another manner of feedback control includes changing an air operating pressure associated with the dispenser. A third type of feedback control includes adjusting the duration that the dispenser is maintained on to dispense the viscous material. Each of these types of feedback control are preferably used in succession, as necessary, to ensure that the desired amount of viscous material is discharged from the dispenser. Methods of controlling an amount of viscous material discharged from a dispenser further include using one or more of the feedback controls described above.

The invention is directed to a dispensing unit suitable to precisely dispense material in powdery and / or granular form. The dispensing device comprises an gate valve opening sealingly closed by a blend. A control unit, which is interconnected to a scaling device, controls the opening of the gate valve opening by the position of the blend. The precise amount of the material is adjusted in relation to the signal of the scaling device.

Method for preparing a mixed powder sample by mixing two or more different powders comprising transferring a quantity of a first powder to a mixing vessel and transferring a quantity of a second powder to the mixing vessel to form a powder bed in the mixing vessel comprising the first and second powders. The quantities of the powders are selected so the mixed sample has a predetermined ratio of first powder to second powder. The powder bed is fluidized to mix the powders and produce a mixed sample. The mixed sample weighs about 5 grams or less. The invention also includes apparatus for preparing mixed powder samples by mixing two or more different powders.

Disclosed is a method for dosing and packaging polysilicon chunks, wherein a product flow of polysilicon chunks is transported via a feed channel, separated by at least one screen into coarse and fine chunks, weighed and dosed to a target weight by a dosing balance, discharged via a discharge channel and transported to a packaging unit where a first plastic bag is filled with the polysilicon chunks and sealed, the plastic bag containing polysilicon chunks being packaged with a further plastic bag which is formed by a shaper and subsequently welded, wherein the at least one screen and the dosing balance at least partially include a hard metal on their surfaces and the shaper for forming the plastic bag includes a wear-resistant coating. Also disclosed are a dosing unit, a packaging unit and a device for dosing and packaging polysilicon chunks, which contains a dosing unit and a packaging unit.

A method and apparatus for dispensing of a product based on weight as a load cell (22) which supports a structure holding the product (20a) to be dispensed. The weight of the product (20a) that is dispensed is determined by use of a controller (23).

This invention is directed to methods, procedures and apparatus for controlling the portioning of flowable materials, particularly soft serve frozen confections, though also including other flowable products. Such other products may include soups, beverages such as milk shakes, soft drinks, and alcoholic beverages such as beers, and so forth.Typically a method for controlling the delivery of a portion of a flowable substance includes the steps of:i) Delivering the flowable substance in a stream; andii) Noting the time for the delivery of a portion of a targeted amount; andiii) Determining the weight of the portion, andiv) Using this information to influence the delivery of further substance to meet a pre-determined target value.A preferred method is characterized by both the weight of the flowable substance being delivered and the time for the delivery of same being repeatedly or continuously assessed to achieve delivery of a pre-determined target weight or volume.

Powder dispensing and sensing apparatus and methods are provided. The powder dispensing and sensing apparatus includes a tray support structure to receive a cartridge tray holding cartridges, a powder dispenser assembly including powder dispenser modules to dispense powder into respective cartridges of a batch of cartridges in the cartridge tray, a powder transport system to deliver powder to the powder dispenser modules, a sensor module including sensor cells to sense respective fill states, such as the weights, of each of the cartridges in the batch of cartridges, and a control system to control the powder dispenser modules in response to the respective sensed fill states of each of the cartridges of the batch of cartridges.

A transportable container apparatus includes an elongate container having a central axis and a base attached to a bottom end of the container. The container and base are substantially symmetrical about the central axis and the container is oriented substantially vertically with the base resting on a ground surface when in a working position. The container having an upper container section with upper walls substantially parallel to the central axis and a lower container section with lower walls substantially parallel to the central axis. The upper container section includes a sloping hopper at a bottom thereof to direct granular material into the lower container section. A floor of the container is sloped toward an outlet port defined in a ported wall of the lower container section such that granular material stored in the container slides down the floor to the outlet port.

The invention is directed to a dispensing unit suitable to precisely dispense material in powdery and / or granular form. The dispensing device comprises an gate valve opening sealingly closed by a blend. A control unit, which is interconnected to a scaling device, controls the opening of the gate valve opening by the position of the blend. The precise amount of the material is adjusted in relation to the signal of the scaling device.

A dispensing system and method is used to dispense a bulk product or to mix and to dispense bulk products on site and to price the products according to the quantity and distribution thereof. The dispensing system preferably provides automated merchandising by providing up-to-date product information and by allowing customers to select and purchase one or more bulk products. The dispensing system can be located indoors or outdoors and is preferably designed for self-service and cash less transactions.

A gravity flow sludge load-out system for rapid and accurate loading-out of large volumes of treated biosolids from a wastewater dewatering plant, said system includes a plurality of hoppers 12, 14 supported by a main structure 16 having a plurality of vertical support members 20, each resting on a load cell 28, a sludge inlet at the tip of each hopper, and hydraulically controlled metering gates 40 at the bottom. A PLC 70 controls delivery of sludge from a dewatering facility, including e.g. a dewatering centrifuge 56, into the hoppers and then controls load-out of the sludge to a container truck by providing real-time monitoring of net sludge load-out and tight control of metering gates.

The present invention is directed to a method and system for transporting and dispensing fibers into an aggregate mix, and more specifically, to a method and system for transporting and dispensing unitized fibrous constructs into a mix without affecting the structural integrity of the unitized construct. The dispensing system will transport and dispense unitized fibrous constructs intact into a cementitious mixture.

There is provided an abnormal device determining means (CPU 51) which reads a tendency of displacement between the combination calculated weight Wc of the contents M and the post-discharge Ws measured value of the same contents M measured after such contents M have been bagged and which, based on the tendency of displacement so read, determines which one of the combination calculated value Wc and the post-discharge measured value Ws is abnormal, and a display device (54) for displaying a result of the determination. Thus, since based on the displacement tendency of the combination calculated value Wc and the post-discharge measured value Ws, which one of the combination calculated value Wc and the post-discharge measured value Ws is abnormal is determined, it can readily and easily grasped which one of the combination weighing apparatus (1) and the weight checker (300) suffers from a trouble.

A method and apparatus of supplying material from a storage hopper (12) to a weighing hopper (16) where the material is fed at a controllable rate by a sliding plate member (104) that acts as a shutter for the storage hopper (12), which includes an aperture (154) for receiving material gravity fed from the storage hopper (12). As the plate (104) is reciprocated horizontally at a preselected frequency, material is conveyed at a controlled rate from the storage hopper (12) to the weighing hopper (16).

A dispensing system for granular materials, in particular agricultural products, capable of dispensing multiple products that comprises a control means for entering a product formula, hoppers that contain material for formulating the product each having a dispensing means controlled by the control means, material is fed from each hopper through a tube and fed into a housing having a rotatable structure that allows the material to be dispensed into a receptacle connected to a weighing means and weighed and feedback means connected to the weighing means and to the control means feeds weight information to the control means which adjusts the dispensing of the material from each of the hoppers as necessary to accurately formulate a product.

A distributor unit (D) includes a stepwise moving conveying line (L) for conveying containers (C) through one filling unit (G), where the containers (C) are filled with a predetermined filling liquid or powder substance. In a weighing station (15,16), associated to the conveying line (L), two weighing groups (11,12) are situated on opposite sides of the conveying line (L) and have one weighing area (14a,14b) for weighing a container (C). One transfer group (30) is associated to the weighing station (15,16) and moves crosswise to the conveying line (L). The transfer group (30) transfers containers (Ci) to be weighed from the conveying line (L) to the weighing area (14b) of one of the weighing groups (12), and transfers at the same time an already weighed containers (C*i-1) from the area (14a) of the other weighing group (11) to the conveying line (L).

This invention relates to a height measurement apparatus for determining volume / density of wood chips on a conveyor. Such structures of this type, generally, employ the use of contacts that ride on top of the pile of wood chips in order to more accurately measure the volume and density of the wood chips.