Abstract:
A measuring device for measuring nuts, bolt heads, washers and the like that includes a body having a first end, an opposing second end, and a longitudinal reference line extending between the first end and the second end; a first pair of parallel surfaces of equal length, the first pair of opposing parallel surfaces longitudinally between the first end and the second end, the surfaces of the first pair spaced apart by a first distance; a second pair of parallel surfaces of equal length, the second pair of parallel surfaces longitudinally between the first pair of parallel surfaces and the first end, the surfaces of the second pair spaced apart by a second distance that is smaller than the first distance; and a pair of nonparallel surfaces connected at an obtuse angle, the opposing nonparallel surfaces longitudinally between the second pair of opposing parallel surfaces and the first end.
Abstract:
The invention is directed to routing data packets in networks having routers configured as a virtual router using virtual router redundancy protocol (VRRP). Embodiments of the invention adjust route metrics to aid in providing predictable selection of routes into VRRP subnets. Advantageously, providing predictable selection of routes into VRRP subnets enhances a network operator's ability to meet service level agreements for critical or delay sensitive applications.
Abstract:
A system and method for modifying a gas turbine engine in the field to drill a series of cooling holes in a turbine rotor disk made of a superalloy. A portable field repair system includes a stand configured to receive, support, and position a turbine rotor disk, a drill having a self-feeding spindle and configured to automatically drill a predetermined depth through a superalloy and to automatically stop upon completion, a drill guide configured to coordinate the drill with a plurality of radial axes associated with a precise hole pattern to be cut and a drill mount configured to mechanically couple the drill to the drill guide and to position the drill during the modification of the gas turbine engine turbine rotor disk.
Abstract:
The invention is directed to routing data packets in networks having routers configured as a virtual router using virtual router redundancy protocol (VRRP). Embodiments of the invention adjust route metrics to aid in providing predictable selection of routes into VRRP subnets. Advantageously, providing predictable selection of routes into VRRP subnets enhances a network operator's ability to meet service level agreements for critical or delay sensitive applications.
Abstract:
An abstract document management layer service (ADML service/module) operating as a single service enabling retrieval, manipulation and management of documents using various specifications. Documents are accessed from a single point of entry. Multiple-document management systems virtually integratale behind ADML. ADML is accessible over a network-enabled interface and provides document access using specification like JAVA, C, CORBA. ADML is Web accessible using JAVA servlet technology. Service requests can be based on HTTP, and ADML responses can be carried out using XML. Access to the contents of a document is URL-based. URLs enable a client application to download documents without additional interaction. URLs can be stored outside of ADML and used to access a specific document. Users can search for a document across repositories based on criteria, retrieve a document, create a document, commit document changes, request additional meta-data, freezes document content prevent changes/deletion, change document states to support workflow, and sets meta-data.
Abstract:
A power cut detection and recovery system (36) provides for the recovery of an electronic apparatus (20) in response to a momentary interruption in the voltage level of a power supply (46) coupled to that apparatus. The system includes a level detecting circuit (80) coupled to the power supply (46) for monitoring the voltage supplied to the apparatus (20). The system further includes internal reference supply circuits (86) that provide voltage and current references to operate the apparatus (20). A power cut monitor and reference control circuit (84) is coupled to the level detecting circuit (80) and is capable of causing the internal reference supply circuits (86) to remain enabled upon the detection of a momentary cut in the externally supplied power (46). A second level detecting circuit (90), dependent on the internal reference supply circuits (86), and the power cut monitor and reference control circuit (84) are coupled to an under voltage monitor and recovery circuit (88) that can cause the apparatus (20) to restart upon the recovery of the voltage level to a value above a predetermined level. By maintaining the internal reference supply circuits (86) in an enabled state, the apparatus (20) is able to restart in its pre-interruption state if the voltage level remains above a POR level.
Abstract:
A system, e.g. an integrated circuit or part, may include a plurality of pads, e.g. digital I/O pads, each comprising a physical pad and associated pad circuit. In case of an ESD event affecting one or more of the digital I/O pads, PMOS devices configured in an output buffer section between an I/O pad supply rail and the physical output pad—within their respective pad circuits in the affected digital I/O pads—may all be turned on in response to the ESD event. This may allow the capacitance of each pad, in some cases approximately 3 pF capacitance per pad, to charge up, absorbing the energy of the ESD event and reducing the peak voltage the integrated circuit or part experiences as a result of the ESD event. The reduced peak voltage may be directly correlated with improved ESD performance of the product.
Abstract:
An integrated circuit (200, 300, 500) includes a current mirror having high output impedance and also having an output device with a low drain-to-source saturation voltage.
Abstract:
An apparatus and method for reducing particles in reactors. The apparatus includes an enclosure for processing the semiconductor wafers. The enclosure has a wafer handling chamber connected by an isolation gate valve to a processing chamber. Additionally, the apparatus includes pipes for delivering a purge gas into the wafer handling chamber. The purge gas is used to eliminates particles from the enclosure. The apparatus also includes a pilot operated back pressure regulator for regulating the delivery and removal of the purge gas from the enclosure. The apparatus actuates the isolation gate valve in a controlled rate to reduce disturbances from the purge gas entering into the enclosure. The apparatus also includes a Bernoulli wand for lifting and holding a single semiconductor wafer. A dome loaded regulator is used to control the ramp rates of the gas to the Bernoulli wand. The dome loaded regulator is actuated by a pilot gas. The ramp up and ramp down rates of the Bernoulli wand gas can be control by a multitude of restrictions and check valves in the pilot gas line. The apparatus also utilizes ionizers in the purge gas lines entering the wafer handling chamber and load locks. Through the use of an alpha particle emission source in the purge gas line prior to the load lock and wafer handling chamber, the purged gas molecules are ionized. The ionized gas is conductive and therefore discharges all static inside the semiconductor equipment. By removable of the static charge particle and wafers are no longer attracted to each other by electrostatic force. In addition, the apparatus includes means for reducing gas flow turbulence when switching valves within the reactor.