Abstract: An axial fan assembly includes blades rotatable about a central axis, a hub connecting the blades at radially-inner ends thereof, and a motor connected to a first portion of the hub. A second portion of the hub supporting the plurality of blades is isolated from the first portion of the hub by a plurality of slots. A plurality of ribs interconnect the first and second hub portions, the ribs defining unsupported regions along bordering ones of the slots. Inner and outer attachment portions of the ribs extend radially inward and radially outward, respectively, from the unsupported regions to attach with the first and second hub portions. As viewed along the central axis, a first thickness defined at each of the unsupported rib portions is less than a second thickness defined at one of the inner and outer attachment portions.

Abstract: An axial fan assembly includes blades rotatable about a central axis, a hub connecting the blades at radially-inner ends thereof, and a motor connected to a first portion of the hub. A second portion of the hub supporting the plurality of blades is isolated from the first portion of the hub by a plurality of slots. A plurality of ribs interconnect the first and second hub portions, the ribs defining unsupported regions along bordering ones of the slots. Inner and outer attachment portions of the ribs extend radially inward and radially outward, respectively, from the unsupported regions to attach with the first and second hub portions. As viewed along the central axis, a first thickness defined at each of the unsupported rib portions is less than a second thickness defined at one of the inner and outer attachment portions.

Abstract: A shroud for an axial-flow fan includes an annular barrel. The barrel includes a cylindrical segment and a conical segment downstream of the cylindrical segment. The conical segment is angled radially inwardly from the cylindrical segment at an angle of between 15 and 35 degrees. The shroud also includes an annular outlet bell coupled to the conical segment at an apex defining a transition between the conical segment and the outlet bell. The outlet bell and barrel contain a plurality of leakage stators. A stator pedestal extends from a radially-inner surface of the outlet bell to a stator pedestal tip, and a depth (a) of the outlet bell measured from an end surface of the outlet bell to the apex is less than one-half a depth (b) measured from the end surface of the outlet bell to the stator tip in the direction of axial airflow through the fan shroud.

Abstract: A shroud for an axial-flow fan includes an annular barrel. The barrel includes a cylindrical segment and a conical segment downstream of the cylindrical segment. The conical segment is angled radially inwardly from the cylindrical segment at an angle of between 15 and 35 degrees. The shroud also includes an annular outlet bell coupled to the conical segment at an apex defining a transition between the conical segment and the outlet bell. The outlet bell and barrel contain a plurality of leakage stators. A stator pedestal extends from a radially-inner surface of the outlet bell to a stator pedestal tip, and a depth (a) of the outlet bell measured from an end surface of the outlet bell to the apex is less than one-half a depth (b) measured from the end surface of the outlet bell to the stator tip in the direction of axial airflow through the fan shroud.

Abstract: An airflow assembly includes a fan, a shroud, a plurality of ribs, and a fan support. The fan has a number of fan blades. The shroud includes (i) a plenum defining a plenum opening located adjacent to the number of fan blades, and (ii) a barrel extending from the plenum so as to surround the plenum opening. The plenum further defines at least one airflow opening spaced apart from the plenum opening. Each of the plurality of ribs extends inwardly from the barrel. The fan support is attached to the plurality of ribs and is configured to support the fan. The at least one airflow opening is not an attachment structure or a guiding structure, is not configured to receive a fastening member, and does not function as a water drain.

Abstract: An axial fan assembly includes a hub, a plurality of connection structures, and a plurality of isolated members. The hub is rotatable about an axis of rotation and includes a radially extending face and a cylindrical portion extending axially from the face. The face includes a radially inner face portion and a radially outer face portion. The plurality of connection structures extends radially inwardly from the radially outer face portion and extends radially outward from the radially inner face portion. The plurality of isolated members extends radially outwardly from the radially inner face portion and is isolated from the plurality of connection structures and from the radially outer face portion by a plurality of slots.

Abstract: A method of operation of a call center system includes: providing an operator console having a first interface port and a second interface port; communicating with a local controller, having a primary interface port and a secondary interface port, by the operator console; establishing a redundant communication mode between the operator console and the local controller; and transmitting redundant messages between the operator console and the local controller including transmitting transmission headers having identical content on the first interface port and the second interface port.

Abstract: Providing a network address is disclosed. A communication indicating that a first node desires to communicate via a packet data network with a second node configured to provide access to a private resource is received. A non-publicly advertised packet data network address usable to communicate with the second node via the packet data network is provided to the first node.

Abstract: Mobile communication data received at the sending based transceiver station via a radio frequency transmission is received a packet data network from a sending base transceiver station. The mobile communication data is forwarded to a base station controller via an interface defined at least in part by a third party base station controller vendor.

Abstract: A method of operation of a call center system includes: providing a commissioning terminal in a first locale; providing a hardware device coupled to the commissioning terminal; provisioning a first locale controller from the hardware device by the commissioning terminal; and managing an inter-locale gateway, by the first locale controller, for commissioning a second gateway in a second locale.

Abstract: An axial fan assembly includes a hub, a plurality of connection structures, and a plurality of isolated members. The hub is rotatable about an axis of rotation and includes a radially extending face and a cylindrical portion extending axially from the face. The face includes a radially inner face portion and a radially outer face portion. The plurality of connection structures extends radially inwardly from the radially outer face portion and extends radially outward from the radially inner face portion. The plurality of isolated members extends radially outwardly from the radially inner face portion and is isolated from the plurality of connection structures and from the radially outer face portion by a plurality of slots.

Abstract: An airflow assembly includes a fan, a shroud, a plurality of ribs, and a fan support. The fan has a number of fan blades. The shroud includes (i) a plenum defining a plenum opening located adjacent to the number of fan blades, and (ii) a barrel extending from the plenum so as to surround the plenum opening. The plenum further defines at least one airflow opening spaced apart from the plenum opening. Each of the plurality of ribs extends inwardly from the barrel. The fan support is attached to the plurality of ribs and is configured to support the fan. The at least one airflow opening is not an attachment structure or a guiding structure, is not configured to receive a fastening member, and does not function as a water drain.

Abstract: A method of operation of a call center system includes: providing an operator console having a first interface port and a second interface port; communicating with a local controller, having a primary interface port and a secondary interface port, by the operator console; establishing a redundant communication mode between the operator console and the local controller; and transmitting redundant messages between the operator console and the local controller including transmitting transmission headers having identical content on the first interface port and the second interface port.

Abstract: A method of operation of a call center system includes: providing a commissioning terminal in a first locale; providing a hardware device coupled to the commissioning terminal; provisioning a first locale controller from the hardware device by the commissioning terminal; and managing an inter-locale gateway, by the first locale controller, for commissioning a second gateway in a second locale.

Abstract: Adjusting a local frequency source is disclosed. A local frequency comparison data is compared with a received frequency comparison data, wherein the local frequency comparison data reflects a difference, if any, between a locally measured AC frequency and a frequency generated using the local frequency source. The local frequency source is adjusted based at least in part on a result of the comparison.

Abstract: The present invention comprises a user interface hardware implementation and associated method for providing a means to achieve secure transactions between a human user and a remote computing facility or service, wherein the transaction is performed such that intermediate nodes, including the human user's primary computation device (e.g. personal computer, cellphone, etc.) need not be trustworthy while still preserving the privacy and authenticity of communications between the human user and remote computing facility or service.

Abstract: Providing mobile network security is disclosed. A first mobile network provider equipment registers using a secret data that is known to a registration entity with which the first mobile network provider equipment is configured to register and embodied in a physical device associated with the first mobile network provider equipment in a manner that enables the physical device to be used to perform a cryptographic function using the secret data but prevents the physical device from being used to provide the secret data as output. An encryption data usable to communicate securely with a second mobile network provider equipment over a packet data network is received from the registration entity.

Abstract: The motor of an automotive cooling fan system is attached to a housing by either bayonet mount, screw mount, or axial-snap features on both motor and housing, as well as a cradle structure on the housing.

Abstract: Providing mobile network security is disclosed. A first mobile network provider equipment registers using a secret data that is known to a registration entity with which the first mobile network provider equipment is configured to register and embodied in a physical device associated with the first mobile network provider equipment in a manner that enables the physical device to be used to perform a cryptographic function using the secret data but prevents the physical device from being used to provide the secret data as output. An encryption data usable to communicate securely with a second mobile network provider equipment over a packet data network is received from the registration entity.

Abstract: Providing a network address is disclosed. A communication indicating that a first node desires to communicate via a packet data network with a second node configured to provide access to a private resource is received. A non-publicly advertised packet data network address usable to communicate with the second node via the packet data network is provided to the first node.