Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 7411136 | Multiple batch system and method for loading railcars of a wide range of capacities and designs Multiple-batch train loading systems and methods, for example for loading coal, which are capable of accommodating railcars of a wide range of capacities and designs. Each railcar is loaded with at least a relatively large initial weighed batch having a weight at le... | 08/12/2008 |
| 7353850 | Dispensing device for drinks A dispensing device dispenses drinks or similar dosable liquid foodstuffs, especially coffee, milk, soft drinks or soups. The dispensing device includes an identification device for identifying a vertical height of a container for receiving the foodstuff and for emi... | 04/08/2008 |
| 6291781 | Combination weighing and counting apparatus A combination weighing and counting apparatus includes a plurality of vibrating feeders (1) arranged and mounted on a support frame and adapted to be electrically powered from an alternating current source to transport articles, a plurality of weighing ho... | 09/18/2001 |
| 6007236 | Weigh scale blender and method A gravimetric blender including a frame, a weigh bin, a device connected to the frame for sensing weight of the bin and any material contained therein, a mix chamber below the bin, connected to the frame, a piston for selectably releasing material in the ... | 12/28/1999 |
| 5895678 | Method for applying materials to substrates A method and apparatus for applying a material to a substrate. A material application station includes a shutter assembly having at least one horizontally extending blade which is rapidly displaceable from a closed configuration in which an outlet path of... | 04/20/1999 |
| 5796052 | Telescopic conveyor for conveying and measuring articles The conveyor (1) includes a telescoping conveyor (2) with a boxlike basic body (9), above which a separating conveyor (3) and a weighing device (4) are located, thereby saving space which would be necessary if the separating conveyor (3) and the weighing ... | 08/18/1998 |
| 5639995 | Apparatus and method for controlling a vibratory feeder in a weighing machine Apparatus and methods are shown for controlling a weighing machine in which product is fed into one end a vibratable pan of a vibratory feeder and is discharged from the other end, for example into a weigh bucket. In a first embodiment, the amplitude of v... | 06/17/1997 |
| 5515888 | Measuring weight by integrating flow The method comprises the steps of: controlling the flow of substance by means of the filler member; measuring, over successive time intervals, the instantaneous flow rate of substance filled into the receptacle; calculating the total weight of substance filled into... | 05/14/1996 |
| 5411174 | Emptying balance having a product flow setting device 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 bloc... | 05/02/1995 |
| 5375634 | Variable mass flow rate fluid dispensing control A liquid dispensing and control system having dispensing nozzles positioned for dispensing into a receptacle on a weight-sensing device, where all dispensing nozzles are respectively coupled to liquid pumps for delivering liquids from different containers... | 12/27/1994 |
| 5285930 | Method of dosing fibres In a method of dosing fibers, such as steel fibers to be mixed in concrete, a supply of fibers (5) is stored in first vibration feeder (2) and is moved from this by means of a second vibration feeder (3). For each dosing operation, a proportioned quantity... | 02/15/1994 |
| 5158238 | Process and apparatus for recovery of lead shot, bullets and slugs from firing ranges This invention relates to process and apparatus for recovering and cleaning lead shot, bullets and slugs of various sizes from shooting range backstops and similar sites. The process involves excavating the site material and delivering same to a surge hop... | 10/27/1992 |
| 5005657 | Powder dispensing and measuring device An inexpensive, reliable, accurate, high speed powder dispensing apparatus is disclosed which includes a barrel for transferring powder from a first retainer to a second retainer. The barrel is vibrated to cause the powder to translate on a surface thereo... | 04/09/1991 |
| 4974646 | Powder flow control valve The disclosure relates to a powder flow control valve comprising a nozzle formed from a material such as high density polythene having an upper frusto-conical section which converges towards the lower end of the nozzle and terminates in a cylindrical sect... | 12/04/1990 |
| 4904154 | Loading system for railroad cars A system for loading coal (particles) into railroad cars 16 wherein a control weight of a railroad car 16 loaded with coal (particles) is established and a maximum permissible weight of a railroad car 16 loaded with coal (particles) is known, the control ... | 02/27/1990 |
| 4832092 | Weight-operated filling system of rotary type A weight-operated filling system of rotary type is disclosed which is adapted to detect the weight of a vessel and content thereof by means of Roberval weigher. In such system, the centrifugal force which is applied to the vessel and the content thereof c... | 05/23/1989 |
| 4703780 | Drum filling apparatus and method Drum filling apparatus and method enabling liquid to be introduced into a container automatically. The apparatus includes a filling lance and a mechanism for gradually raising the filling lance to ensure that only a relatively small portion of the lance r... | 11/03/1987 |
| 4605083 | Method and apparatus for weighing material A method and apparatus for separately weighing, by means of a common scale, contributions of material from multiple streams, such materials typically being printed papers, such as from a printing press. Material that is to be weighed, which is typically w... | 08/12/1986 |
| 4591011 | Balance with clock-like display An optical display is provided to guide the operator during metering of a substance to a desired value. The desired value is entered into a computer and the substance to be metered is applied to a balance. The display is in the form of a clock having a co... | 05/27/1986 |
| 4585148 | Process and apparatus for metering liquid colorant Process and apparatus for metering liquid colorant from a primary color reservoir having a valve for controlling the liquid flow into a collecting container. The process comprises the steps of disposing the valve into required position, operating a drive ... | 04/29/1986 |
| 4580698 | Automatically adjustable continuous feeder system A gate-type feeder control system has level and weight sensors for monitoring the output of the system to a conveyor or other receiver, an electronic control circuit responsive to the sensors, and a hydraulic actuator circuit including a plurality of valv... | 04/08/1986 |
| 4516644 | Apparatus for regulating flow of articles in computer scale An apparatus for controlling the flow of articles in the supply troughs of a combinatorial weighing apparatus. A plurality of flow regulating plates or baffle plates are disposed in respective or selected supply troughs arranged to extend radially from a ... | 05/14/1985 |
| 4515231 | Combinatorial weighing apparatus with serial weighing operations A combinatorial weighing apparatus has a plurality of pool hoppers associated with automatic weighing units, respectively, for weighing batches of articles which have been supplied from a supply unit into the pool hoppers. After the batches of articles ha... | 05/07/1985 |
| 4453575 | Container filling system There is herein disclosed an improved system for rapidly filling containers precisely to prescribed load weights with articles of the so-called pellet/pill/tablet type; employing in combination, a high speed bulk-loading means and supplementary loading me... | 06/12/1984 |
| 4401174 | Weigh scale machine having solid-state controller A weigh scale machine for automatically filling bags/containers including an infeed chute, a weigh bucket, a scale mechanism, and a discharge hopper. Initially, the flow gate located between the infeed chute and the weigh bucket is open and product is per... | 08/30/1983 |
| 4312462 | Weighing and dispensing unit Flowable food is fed by a vibrator unit to a weighing platform which is carried by a weighing support which moves downwardly as the food builds up on the platform, the weighing support and vibrator being temporarily stopped by stops at a location prior to... | 01/26/1982 |
| 4300600 | Method and apparatus for filling sacks with an amount of pourable material determined by their weight Large capacity sacks are successively suspended from holding devices by their mouths and filled with pourable material through a conduit equipped with a dispensing mechanism. During filling, the sack comes to rest on a support which is part of weighing ap... | 11/17/1981 |
| 4222448 | Automatic batch weighing system An improved system and method is disclosed for compounding batches of a plurality of constituents in accordance with a predetermined formula. The individual batch constituents are sequentially fed into a batch receiving hopper. Feeding of each constituent... | 09/16/1980 |
| 4211263 | Dual fill rate liquid filler apparatus having a single control valve A liquid filler apparatus useful in connection with the filling of a container with a predetermined weight of liquid at a first and a second fill rate is characterized by a single control valve having either a ball-type or a butterfly-type valve element i... | 07/08/1980 |
| 4182383 | Fluidized bed powder discharge and metering method and apparatus A metering method and apparatus is provided for the controlled discharge of powder from a fluidized-bed blender to a material container, which gives accurate material weights while separating powder from fluidizing gas. In this method the material contain... | 01/08/1980 |
| 4177621 | Automatic fruit bagging A method and apparatus for bagging bruisable discrete articles, such as apples. The apples are fed single file to a weighing device, and the feed of articles is terminated just before the desired predetermined weight of apples to be bagged. The weighing d... | 12/11/1979 |
| 4103751 | Check weighing apparatus for articles A check-weighing apparatus is provided wherein a conveyor feeds articles in a discrete manner onto a weighing device, the feeding of the articles being terminated, and the articles being removed from the weighing device, when a predetermined weight is att... | 08/01/1978 |
| 4062413 | Feeder unit and method for use in a weighing system An improved feeder unit and method for use in a weighing system is disclosed wherein a bulk and a dribble feeder are positioned in close proximity to each other with both feeders being vibratory feeders. Positioned over the vibratory dribble feeder is a m... | 12/13/1977 |
| 4040496 | Automatic weighing machines The invention provides an automatic weighing machine for weighing out a predetermined quantity of fluid materials into a container. The machine includes a fluid material valve of the downward delivery type comprising a closure member having a plurality of... | 08/09/1977 |
| 3994404 | Portable mixing plant for concrete and the like A mixing plant which is portable and adapted to mix material, such as for on-the-site mixing of concrete and the like, and which mounts on a truck to be readily transported from site to site. This mixing plant includes four transportable units mounted on ... | 11/30/1976 |
| 3974888 | Method of weighing and apparatus therefor A method of weighing and an apparatus therefor, wherein articles varying in unit weight are continuously weighed by a single weighing machine to classify them into three ranks, one for articles having error weights outside the allowable error limits, anot... | 08/17/1976 |
| 3957126 | Feed control system A feed control system, for controlling the operation of a weighing apparatus including two or more conveyors arranged in flow series and arranged to carry product from a feeder to a hopper whereby the product will be separated into batches of predetermine... | 05/18/1976 |
