Abstract: Devices used to pressurize, depressurize, or otherwise displace fluid are disclosed. The devices may be configured to displace fluid in order to inflate or deflate a medical device, such as a balloon. The devices further include features and mechanisms for limiting pressure generation so as to avoid damage due to overpressurization.

Abstract: A network identification system for use in a process control system creates and stores a unique network identification tag for input/output networks in the process control system. During the configuration process, each process controller is assigned a unique controller identification tag. In addition, each input/output device installed on each process controller is assigned a device identification tag. The network identification system creates a network identification tag for an input/output network by concatenating and combining the unique controller identification tag and the device identification tag. The network identification system may be configured to periodically transmit the network identification tag or to provide the network identification tag is response to a request for identification.

Abstract: A hand-held communication control device which, when coupled to a process control system communication bus, controls communication occurring on the bus using a communication schedule that dictates when each of the devices coupled to the bus will be permitted to communicate on the bus. The hand-held communication control device further uses a probing algorithm to detect devices, including other communication control devices, that are coupled to the bus. The probing algorithm causes the hand-held communication control device to select an address from one of a set of three address lists to which a probe node message is then transmitted to detect the presence of a device at that address. One of the address lists is reserved for communication control devices and uses only a limited number of maximum possible addresses.

Abstract: A method of and a device for implementing redundancy in a process control network using a pair of redundant devices, such as redundant I/O devices, communicatively connected to a segment of the bus in parallel to each other and in series between the controller and field devices on the segment. The redundant devices are assigned a virtual publishing address, which may be the unique address of one of the redundant devices, that is used in communicating over the bus. At all times, one of the redundant devices is operating in an active mode and communicating with the devices in process control network, and the other redundant device is operating in a backup mode wherein the redundant device maintains a communication connection with the devices and listens for messages transmitted by the devices and intended for the redundant devices, but does not respond to messages from the other devices until the device switches to the active mode.

Abstract: A network identification system for use in a process control system creates and stores a unique network identification tag for input/output networks in the process control system. During the configuration process, each process controller is assigned a unique controller identification tag. In addition, each input/output device installed on each process controller is assigned a device identification tag. The network identification system creates a network identification tag for an input/output network by concatenating and combining the unique controller identification tag and the device identification tag. The network identification system may be configured to periodically transmit the network identification tag or to provide the network identification tag is response to a request for identification.

Abstract: A method of and a device for implementing redundancy in a process control network using a pair of redundant devices, such as redundant I/O devices, communicatively connected to a segment of the bus in parallel to each other and in series between the controller and field devices on the segment. The redundant devices are assigned a virtual publishing address, which may be the unique address of one of the redundant devices, that is used in communicating over the bus. At all times, one of the redundant devices is operating in an active mode and communicating with the devices in process control network, and the other redundant device is operating in a backup mode wherein the redundant device maintains a communication connection with the devices and listens for messages transmitted by the devices and intended for the redundant devices, but does not respond to messages from the other devices until the device switches to the active mode.

Abstract: A system is disclosed for evaluating relevant data across independent test sequences and providing a consumable output to give a tester an accurate account of the test data. A method for reporting the results of the test processes includes several steps. First, repair, trending, characterization, timing and engineering data for two separate test sequences are read. Next, the data is compared. Also, an analytical report of the test data comparisons is assembled and output.

Abstract: A paint roller adapter is disclosed which includes a substantially longitudinal first rod and a second rod. The first rod is suitable for being received by a drill chuck. The second rod, being longer in length than the first rod, is capable of receiving a mini-roller about the longitudinal centroid of the roller. Between the first and second rods may include a handle portion to facilitate a user grasping the adapter. Between the handle and the second rod is a step taper, preferably with annular ribs thereon. This step taper has a gradual increase in diameter from the surface of the second rod increasing in the direction of the handle. This gradual taper provides secure frictional contact between the roller and the taper/second rod combination, thus securably fastening the roller to the adapter. Between the handle and the first rod exists an annular taper that would facilitate the insertion of the first rod into a paint roller spinner, the jaws of the roller securing onto the handle.

Abstract: A system is disclosed for evaluating relevant data across independent test sequences and providing a consumable output to give a tester an accurate account of the test data. A method for reporting the results of the test processes includes several steps. First, repair, trending, characterization, timing and engineering data for two separate test sequences are read. Next, the data is compared. Also, an analytical report of the test data comparisons is assembled and output.