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| Number | Title | Issue Date |
| 8047355 | Automatic belt tracking system In an aspect of the present invention, a system and method are provided that detect belt mis-tracking and in response, automatically adjusts. In some implementations, the system and method are implemented in conjunction with a weigh feeder or weigh belt. In other im... | 11/01/2011 |
| 7191919 | Weight-loss weigh feeder with pressure compensation A system is disclosed that minimizes the effect of internal pressure upon weight-loss weighing systems. The system can include a flexible gas purge line that pressurizes the system as well as a pressure compensator that negates the adverse effects of internal pressu... | 03/20/2007 |
| 6926030 | Apparatus for mixing two fluids or keeping them separate A mixing apparatus for mixing two fluids immediately following contact with each other is disclosed. The mixing apparatus includes a spring-loaded ball valve separating a first fluid from a second fluid. The ball valve closes as a result of at least spring force. Th... | 08/09/2005 |
| 6444926 | Rotary pocketed weigh feeder A weigh feeding apparatus has a plurality of compartments to hold a material that is fed into the compartments and a scale for weighing the material held in the compartments. The compartments are configured to revolve about an axis at a substantially cons... | 09/03/2002 |
| 5848728 | Multi-flighted notched metering auger An auger is provided for discharging a uniform flow of material, particularly dry solids, through a feeding system. The auger has a shaft and at least one flight extending outward from the shaft for delivering a flow of material from a first end to a seco... | 12/15/1998 |
| 5709322 | Dry solids metering system with means for self-emptying and quick-emptying/cleanout A sweep arm assembly and cleanout port are provided for a dry bulk materials feeding system. A supply hopper having an outlet is disposed above a chamber such that material may flow from the hopper to the chamber. The chamber has a flat bottom surface. A ... | 01/20/1998 |
| 5423455 | Materials feeding system with level sensing probe and method for automatic bulk density determination An improved system and method for gravimetrically feeding material at a controlled rate. The material to be fed, which can be either a dry solid or a liquid, is maintained in a supply vessel. A probe disposed in the supply vessel detects the level of the ... | 06/13/1995 |
| 5405049 | Isolation pad for a feeding system and a method for feeding material from the system The present invention relates to an isolation pad for mounting a supply vessel to a feeding mechanism, and a system containing such a pad. The isolation pad is made of two plates connected by a flexible elastomer gasket. An aperture extends through both p... | 04/11/1995 |
| 5301844 | Dry solids materials feeder with vibrating mechanism and a method of vibrating various component parts of the feeder A volumetric dry solids materials feeder comprises a supply hopper, a feed trough disposed below the hopper, and an auger disposed in the feed trough to feed out the material. The trough is anchored to a vibration base, on which is mounted a vibratory mec... | 04/12/1994 |
| 5205647 | Fluid mixing apparatus and method of mixing A mixing apparatus for mixing two or more fluids into a homogeneous mixture. A rotor is mounted on a drive shaft coaxially within a cylindrical casing. Bores run the length of the rotor. Mixing conduits lead from the bores to outside the rotor. A cylindri... | 04/27/1993 |
| 4867343 | Wild-flow loss-in-weight weighing system The present invention relates to a continuous weighing system and more specifically to a combination of a "wild-flow" flow of material and a loss-in-weight monitoring system. An uncontrolled flow of material from a wild-flow stream is accurately weighed a... | 09/19/1989 |
| 4804111 | Mechanism for metering solid materials which flow in a manner similar to liquids An improved metering mechanism for metering highly aerated or fluidized solid materials in a controlled manner is disclosed. The mechanism consists of a bin discharger attached above a rotary feeder assembly. The bin discharger has two augers which rotate... | 02/14/1989 |
| 4722456 | With accelerometer for detecting extraneous disturbances weigh feeder The present invention is a loss-in-weight feeding system including an accelerometer for detecting extraneous disturbances impinging on the system and preventing the disturbance from adversely affecting the feed rate. A split-beam weighing assembly senses ... | 02/02/1988 |
| 4643582 | Wetting chamber The present invention provides a new wetting chamber for a metering and wetting system typically for polyelectrolyte polymer. Atmospheric air is used to disperse the polymer fed into the chamber by a suitable feeder and to generate air/water turbulence in... | 02/17/1987 |
| 4485973 | Ingredient spreader An ingredient spreader which may be readily coupled to existing feeder mechanisms so as to provide a uniform output which is dispersed in a sifting or dusting fashion over a defined area. The ingredient spreader includes a housing having an inlet at its t... | 12/04/1984 |
