Abstract: A dual mode configurator operates in an off-line mode to configure Fieldbus devices and/or segments in a typical manner and operates in an on-line mode to reconfigure or set certain parameters of a device when the device is connected to a segment controlled by a different host, without interfering with the on-line operation of the segment. The dual mode configurator can be used to configure an entire segment by configuring both network settings and device settings and, alternatively, can be used to configure device settings without effecting or interfering with the on-line system configuration information such as the network settings of a segment when, for example, a different host device or configuration device is connected to the segment to implement process control activities or to make segment changes.

Abstract: A handheld communicator wirelessly interfaces or communicates with individual devices in a process control system, such as field devices, controllers, etc., to wirelessly perform monitoring, maintenance, configuration and control activities with respect to those devices. The wireless handheld communicator includes a housing adapted for handheld operation, a processing unit disposed within the housing, a computer readable memory disposed within the housing and coupled to the processing unit and a display, a keypad and a radio frequency transceiver. The handheld communicator may be adapted to communicate with a host system to receive information needed to communicate with various field devices in the process plant and may then be used to wirelessly communicate with each of the various field devices directly while in close proximity to the field devices to perform monitoring and configuration activities with respect to the field devices.

Abstract: The present invention relates to an apparatus and method for removing material sizing and sorting screens from a materials reducing machine. The invention pertains to providing cut outs in the side of the materials reducing machine and positioning the rotor bearing housing to allow access to and the ability to remove screens from the side of the materials reducing machine. Once outside the machine, the screens can be replaced with new screens, rotated, or interchanged with other screens in the materials reducing machine.

Abstract: A portable computer for use in interfacing to a process control system having a host system includes a housing adapted for hand-held operation, a processing unit disposed within the housing and a computer readable memory disposed within the housing and coupled to the processing unit. The portable computer also includes a display, a keypad and a radio frequency transceiver adapted to communicate with the host system, all of which are disposed within the housing and communicatively coupled to the processing unit. A first software routine stored in the computer readable memory processes a user input received from the keypad and sends a command to the host system via the radio frequency transceiver. Additionally, a second software routine stored in the computer readable memory receives process information sent from the host system in response to the command and displays the received process information via the portable computer display.

Abstract: The present invention relates to an apparatus and method for removing material sizing and sorting screens from a materials reducing machine. The invention pertains to providing cut outs in the side of the materials reducing machine and positioning the rotor bearing housing to allow access to and the ability to remove screens from the side of the materials reducing machine. Once outside the machine, the screens can be replaced with new screens, rotated, or interchanged with other screens in the materials reducing machine.

Abstract: A knife gate valve is provided with peripheral seals which can be removed for cleaning and inspection without having to remove the valve from the duct or other conduit to which the valve is mounted. The longitudinal seals are pressure loaded and seat against the edge rather than the face of the gate. The seals are shielded from the abrasive effects of the material flowing through the valve by peripheral spaced apart beams which project into the valve opening. A series of cutouts in the beams allows the space between the beams to be cleaned of any accumulated material during reciprocation of the gate.

Abstract: A knife gate valve for regulating particular material flow in a pneumatic or vacuum covering system. An actuated, reciprocative gate is mounted within the valve housing on guide bars which define the path of gate movement between open and closed positions. The guide bars seal the side edges of the gate and the adjacent portion of the lower gate surface. A seal plate is loaded by a pair of o-rings to seal against the top gate surface. Transverse seals are accessible for cleaning or replacement through releasable side seal assemblies. Fluid ports allow the transverse seals to be lubricated in place or air purged. The guide bars are cleaned by the gate during closure with the opposed gate surfaces being cleaned by the seal plate and an underlying wiper bar during gate movement. The cleaning actions cooperate with dynamic loading of the various seals to assure a proper seal about the gate upon closure.