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| Number | Title | Issue Date |
| 8083051 | Bulk material pump feeder with reduced disk jamming A bulk materials pump feeder having a housing and a rotating drive rotor for transferring material from an inlet to an outlet of the housing. The drive rotor has a hub. Drive disks extend away from the hub toward a housing inner wall. Three structural features of th... | 12/27/2011 |
| 7044288 | Bulk material pump feeder with reduced disk jamming A bulk materials pump feeder having a housing and a rotating drive rotor for transferring material from an inlet to an outlet of the housing. The drive rotor has a hub. Drive disks extend away from the hub toward a housing inner wall. Three structural features of th... | 05/16/2006 |
| 6832887 | Bulk material pump feeder A bulk materials pump feeder having a housing and a rotatable drive rotor mounted in the housing for transferring material introduced into the housing through an inlet to an outlet for discharge of the material from the housing. The drive rotor has a hub and a plura... | 12/21/2004 |
| 6702152 | Dosing control for helical dosing equipment A device for the control of dosing of a time dependent mass flow m(t) for a helical dosing equipment (1) with a weighing machine (9) and a method of operation of such a device. The device includes a modulation detector (31), with which the periodic deviat... | 03/09/2004 |
| 6437255 | Conveyor scale The continuous weighing meter [according to the invention has] having a conveyor belt [(1)] driven by a motor [(3)] and running over a guide roller (4), which is loaded with bulk material via an input funnel [(6)] from a feed arrangement [(9)]. In additio... | 08/20/2002 |
| 6216542 | Monolithic force sensor The invention relates to an internal parallel motion force sensor containing a rectangular box load body fixedly connected to a measuring transducer and an electronic evaluation unit in a gas and humidity tight manner. The load body has an axal longitudin... | 04/17/2001 |
| 5947480 | Sealing unit for rotating shaft A sealing unit for sealing an opening through which a rotating part passes. A rotary ring turns within a housing when a pair of flexible rings carried by the rotary ring are turned by engagement with a rotating part. The opposed faces of the rotary rings ... | 09/07/1999 |
| 5834707 | Bulk material scale and flowmeter The bulk material, the amount o which is to be determined through second-integration or time-integration, passes over a top chute onto a bottom chute which is disposed at a tilt angle and defines the velocity of the bulk material. The bottom chute channel... | 11/10/1998 |
| 5599099 | Material blending apparatus having a pivotally mounted hopper A weigh batch blender including a hopper pivotally mounted within a housing and having two compartments between which ingredient materials which have been individually introduced into the hopper are transferred to blend the ingredient materials as the hop... | 02/04/1997 |
| 5454524 | Material feeding apparatus A disc feeder for delivering material in controlled amounts to utilization equipment. The disc which carries material to a material discharge opening is disposed at an angle to the horizontal and the shearing baffle which controls the amount of material c... | 10/03/1995 |
| 5450984 | Material feeding apparatus Material feeding apparatus having, as one aspect, combining the loading, feeding and refilling functions in a single, vertically disposed housing with a feeder hopper portion of the housing below a refill hopper portion of the housing and separated from t... | 09/19/1995 |
| 5379653 | Force measuring device A force measuring device has a cell possessing an axis and a ring. The ring is coaxial with the axis and is elastically deformable by shearing as a result of forces which are parallel to the axis and are input into the inner and outer sides of the ring. T... | 01/10/1995 |
| 5350089 | Feeder for dispensing flowable substances A feeder for dispensing flowable substances and a coupling which causes rotation of the feed screw of the feeder in response to the drive system of the feeder. The feed screw is removable from the feeder, with insertion and removal of the feed screw effec... | 09/27/1994 |
| 5339997 | Mechanical feeder having a hemispherical hopper A feeder for controllably discharging a flowable substance and having a hemispherically shaped hopper for holding a flowable substance, a rotatable agitator for sweeping the hopper and agitating the substance, a trough for receiving the substance from the... | 08/23/1994 |
| 5341307 | Apparatus and method for controlling flow rate in vibratory feeders A method and apparatus for controlling the actuator in a vibratory weigh feeding system, to adjust the discharge rate. The vibratory weigh feeding system has a material containers an actuator for vibrating the container, weighing apparatus for sensing the... | 08/23/1994 |
| 5277535 | Roller clutch driven feeder system A volumetric feeder having a reversible motor, in which the feed screw is driven at a first speed when the motor rotates clockwise, and is driven at a second speed when the motor rotates counterclockwise. The feeder includes a first one-way clutch, having... | 01/11/1994 |
| 5143202 | Screw conveyor A screw conveyor with a slowly rotating feed screw for precision metering by conveying very small amounts of loose material between screw threads, the same amount of loose material being discharged from the end of the conveyor with each turn of the screw.... | 09/01/1992 |
| 5095764 | Force transducer and method of manufacturing same A force transducer includes a force transmitting mechanism comprising a reference member which is stationary during measurement, a force input member and two holders adapted to hold a transducing element and to apply a force thereto at least approximately... | 03/17/1992 |
| 5074368 | Self-calibrating apparatus for article input and removal monitoring system Two embodiments of a low profile weight sensor for a weight sensing system for monitoring article input and removal from article storage apparatus comprises a plate or I-shaped bar support member having first and second sections, an integrally formed link... | 12/24/1991 |
| 5074403 | Apparatus and method for two loop control of vibratory material feeders Control apparatus for a vibratory feeder has two control loops, one for controlling displacement amplitude and one for controlling displacement frequency. The two loops operate independently of each other, and use different feedback signals. The displacem... | 12/24/1991 |
