Abstract: An apparatus provides wireless communication between multiple devices within a process control system, such as between field devices, control units, user terminals, controllers, etc., using a wireless bus protocol. In one embodiment, a process control system for use within a process control environment includes a plurality of process control field devices that operate within the process environment, and a control device adapted to receive a sense signal from or to provide a control signal to one or more of the plurality of process control field devices. First and second wireless transceivers are communicatively connected to different ones of the process control field devices and the control device and communicate with one another using a bus protocol, to thereby provide wireless communications within the process control system.

Abstract: This invention relates to S-MNTX, methods of producing S-MNTX, pharmaceutical preparations comprising S-MNTX and methods for their use.

Abstract: An apparatus provides redundant wireless to access field devices in a distributed control system having primary access to the field devices provided by hard-wired media that couples the field devices to the control room. The field devices are coupled to a Fieldbus control network. In a first embodiment, each field device is provided with a wireless Fieldbus port that is accessible by a wireless terminal. In a second embodiment, each Fieldbus control network is provided with a field module having a wireless Fieldbus port that allows all devices connected to the Fieldbus control network to be accessed by a wireless terminal. In a third embodiment, an H2-to-H1 Fieldbus bridge (which may service a plurality of H1 control networks) is provided with a wireless Fieldbus port that allows all Fieldbus devices connected to H1 control networks serviced by the H2-to-H1 bridge to be accessed by a wireless handheld unit of a wireless terminal.

Abstract: A wireless bridge device disposed within a process control system provides wireless communication between multiple devices within the process control system, such as between field devices, control units, user terminals, controllers, etc. In one embodiment, a process control system disposed within an industrial process environment includes a first process control device, a bridge device, a plurality of field devices disposed within the industrial process environment and a hardwired communication link disposed between the bridge device and each of the plurality of field devices.

Abstract: Stable pharmaceutical compositions useful for administering methylnaltrexone are described, as are methods for making the same. Kits, including these pharmaceutical compositions, also are provided.

Abstract: Methods for treating constipation are provided. The methods include administration of peripheral opioid antagonists in combination with laxatives and/or stool softeners. Patients treatable by the invention include those refractory to conventional laxative and stool softener therapy.

Abstract: A card guide apparatus for retaining a PCI or ISA computer add-on card within a computer chassis frame. The card guide includes a bracket fixed to the computer chassis frame and a shuttle that is moveable between a first position disengaged with edges of the card to a second position engaged with the edges of the card for support during transport. The shuttle is slidably retained along at least one track defined within the bracket and includes an upper and lower panel defining a channel therebetween in which the card edge is received.

Abstract: An apparatus provides redundant wireless to access field devices in a distributed control system having primary access to the field devices provided by hard-wired media that couples the field devices to the control room. The field devices are coupled to a Fieldbus control network. In a first embodiment, each field device is provided with a wireless Fieldbus port that is accessible by a wireless terminal. In a second embodiment, each Fieldbus control network is provided with a field module having a wireless Fieldbus port that allows all devices connected to the Fieldbus control network to be accessed by a wireless terminal. In a third embodiment, an H2-to-H1 Fieldbus bridge (which may service a plurality of H1 control networks) is provided with a wireless Fieldbus port that allows all Fieldbus devices connected to H1 control networks serviced by the H2-to-H1 bridge to be accessed by a wireless handheld unit of a wireless terminal.

Abstract: A cooling duct for a computer system with redundant air moving units includes a first inlet that receives a first air flow from a first air moving unit. The cooling duct also includes a second inlet that receives a second air flow from a second air moving unit. A mixing chamber is connected to the first inlet and the second inlet. The mixing chamber receives and mixes the first air flow and the second air flow. A first outlet is connected to the mixing chamber. The first outlet directs the first air flow and the second air flow to a first location. A second outlet is connected to the mixing chamber. The second outlet directs the first air flow and the second air flow to a second location.