Abstract: Detecting a leak from a site in a sealed system with a source of pressurized gas which is capable of passing through the site, a composition of matter which adheres to the surfaces of the system and which is capable of showing the presence of the gas escaping from the site. The method includes: injecting gas into the system to a pressure in excess of the surrounding pressure, and covering the external surface with the composition to identify the location of the site by the interaction of the escaping gas with the composition. The composition is foam that includes a surfactant which forms a least one bubble in the presence of escaping gas and an indicator which changes color in the presence of the escaping gas. The leak is an opening down to at least the size of a hole 0.001? in diameter. A gas detector may also be used.

Abstract: This invention relates to compositions of matter formulated to work in conjunction with CO2 gas for identifying the exact leak site location of small and large leaks in sealed systems. The leak finding compositions of matter foam, or are in the form of a foam, when applied to the one or more external surfaces of a system, that is closed and pressurized with CO2, where a leak site location is suspected. This foam then changes color from a first color to a second color over the exact leak site.

Abstract: In a threat management platform, a number of endpoints log events in an event data recorder. A local agent filters this data and feeds a filtered data stream to a central threat management facility. The central threat management facility can locally or globally tune filtering by local agents based on the current data stream, and can query local event data recorders for additional information where necessary or helpful in threat detection or forensic analysis. The central threat management facility also stores and deploys a number of security tools such as a web-based user interface supported by machine learning models to identify potential threats requiring human intervention and other models to provide human-readable context for evaluating potential threats.

Abstract: An authentication model dynamically adjusts authentication factors required for access to a remote resource based on changes to a risk score for a user, a device, or some combination of these. For example, the authentication model may conditionally specify the number and type of authentication factors required by a user/device pair, and may dynamically alter authentication requirements based on changes to a current risk assessment for the user/device while the remote resource is in use.

Abstract: Where a single networked security service supports multiple enterprises, this security service can operate as a shared source of trust so that security devices associated with one enterprise can provide authenticated, policy-based management of computing devices associated with another enterprise. For example, an enterprise firewall can advantageously manage network access for a new device based on a shared and authenticated relationship with the networked security service.

Abstract: A method of valuing, marketing and buying a commodity lot is provided in which a particular lot of a commodity is tested to determine an amount of a value-trait present in the particular commodity lot; a trait-premium is assigned to the amount of the value-trait, a base-value of the particular commodity lot is adjusted in relation to the trait-premium. The base-value and the trait-premium are posted electronically as a lot-information to allow a commodity purchaser to determine if the particular commodity lot meets the purchaser's desired criteria.

Abstract: An SCR reactor (50) is disclosed which permits ready removal of a catalyst bed (58) from the SCR reactor and provides an effecting sealing mechanism between the catalyst bed (58) and the frame (52) of the SCR reactor. The frame is provided with side rails (54, 56) which have individual indentations spaced therealong. The catalyst bed is provided with wheels (60A, 60B, 60C) along its length which permit the catalyst bed to be rolled along the side rails until the catalyst bed is moved into its installed position whereupon the wheels descend into the indentations (62), causing the weight of the catalyst bed to form an effective seal between a downwardly face edge (64) on the catalyst bed and the frame (52).

Abstract: An SCR reactor sealing mechanism is disclosed which utilizes a clamping plate (34) to urge a side sealing flange (24) on a member (20) containing the catalyst (22) against a mating sealing surface (32) on the supporting internal frame (12) to prevent exhaust gas from bypassing the catalyst. The sealing mechanism has an advantage in permitting the member and catalyst to be removed from the internal frame by simply loosening the clamping plate (34) and slid out of or into the internal frame.

Abstract: A trash compactor includes a receptacle with a receptacle opening, a closure member, and a collapsible compacting mechanism mounted in the closure member. The closure member is adapted to be secured over the receptacle opening in a compacting position. With the closure member in the compacting position, the compacting mechanism is adapted to be operated, preferably driven by an electric drive motor, so as to extend a compacting head into the receptacle through the receptacle opening to compact trash received therein. The compacting mechanism is also adapted to retract the compacting head substantially from the trash receptacle. A drive motor control system controls the operation of the drive motor in driving the compacting mechanism. Once the compacting head is retracted from the receptacle the closure member is adapted to be released from the compacting position thereby exposing the receptacle opening so that more trash may be deposited into the receptacle for compacting.

Abstract: A trash compactor includes a receptacle with a receptacle opening, a closure member, and a collapsible compacting mechanism mounted in the closure member. The closure member is adapted to be secured over the receptacle opening in a compacting position. With the closure member in the compacting position, the compacting mechanism is adapted to be operated, preferably driven by an electric drive motor, so as to extend a compacting head into the receptacle through the receptacle opening to compact trash received therein. The compacting mechanism is also adapted to retract the compacting head substantially from the trash receptacle. A drive motor control system controls the operation of the drive motor in driving the compacting mechanism. Once the compacting head is retracted from the receptacle the closure member is adapted to be released from the compacting position thereby exposing the receptacle opening so that more trash may be deposited into the receptacle for compacting.

Abstract: A set of titanium guide bars are shaped with inner angular finger shields to isolate designated underside edge areas of a printed circuit board being conveyed across a molten solder bath in a wave solder machine.

Abstract: A modem for a single frequency, modulated RF carrier local data network for a distributed data processing system and a method for line acquisition and contention resolution. The protocol established for line acquisition and contention resolution is implemented by a modem controller. The controller causes the receiver section to listen for foreign carriers to determine when the line is busy. When the client device of the modem desires to send a data packet to another unit, the modem controller causes the receiver to listen for a certain pre-burst period and then causes the transmitter to send a burst of RF carrier out on the line and simultaneously causes the receiver to listen to the line for interference beating, i.e. changes in amplitude on the line which indicates another unit is requesting the line. To insure beat patterns, the frequency of the burst carrier is swept over a range during the burst. If a contention is found, a resolution thereof is made utilizing a random delay and retry protocol.