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: An apparatus for the heat-treating of a heat-hardenable steel cruciform article having a weld seam includes a heating element to heat the weld seam to a point that an austenitic transformation occurs, and a quenching chamber to cool the weld seam, causing the formation of Martensite and an associated expansion. The quenching is rapid since slow quenching may allow a crystalline phase other than martensite to form. The apparatus may comprise rollers operable to convey the welded cruciform article through the apparatus at a speed such that the weld seam is subjected to heating for a predetermined heat time sufficient to cause a formation of martensite there within, and such that the heated portion reaches the quenching chamber and is quenched to create a substantial amount of martensite, e.g., an amount sufficient to cause expansion of the part.

Abstract: An apparatus for the heat-treating of a heat-hardenable steel cruciform article having a weld seam includes a heating element to heat the weld seam to a point that an austenitic transformation occurs, and a quenching chamber to cool the weld seam, causing the formation of Martensite and an associated expansion. The quenching is rapid since slow quenching may allow a crystalline phase other than martensite to form. The apparatus may comprise rollers operable to convey the welded cruciform article through the apparatus at a speed such that the weld seam is subjected to heating for a predetermined heat time sufficient to cause a formation of martensite there within, and such that the heated portion reaches the quenching chamber and is quenched to create a substantial amount of martensite, e.g., an amount sufficient to cause expansion of the part.

Abstract: In the present invention, a method is provided for installing and locating a plurality of sensors distributed on a structure as part of a structural health monitoring system. The method includes verifying the proper installation of the plurality of sensors and determining the location of the plurality of sensors. In one aspect of the present invention, the step of verifying the proper installation further comprises verifying that each of the plurality of sensors are properly coupled to a sensor data collector and verifying that each of the plurality of sensors are installed in a proper location. In another aspect of the present invention, the step of determining the location of the plurality of sensors further comprises determining the positioning of each sensor in reference to fixed structures in the structure.

Abstract: An apparatus for the heat-treating of a heat-hardenable steel cruciform article having a weld seam includes a heating element to heat the weld seam to a point that an austenitic transformation occurs, and a quenching chamber to cool the weld seam, causing the formation of Martensite and an associated expansion. The quenching is rapid since slow quenching may allow a crystalline phase other than martensite to form. The apparatus may comprise rollers operable to convey the welded cruciform article through the apparatus at a speed such that the weld seam is subjected to heating for a predetermined heat time sufficient to cause a formation of martensite there within, and such that the heated portion reaches the quenching chamber and is quenched to create a substantial amount of martensite, e.g., an amount sufficient to cause expansion of the part.

Abstract: A method for operating a memory checker in a command monitoring architecture comprising at least two processing lanes comprises a first step of receiving a command to activate a first test mode. The first test mode comprises an initial step of inverting data read from a memory and inverting data written to the memory. Next, it is determined if there is a match between data associated with a first processing lane and retrieved by a second checker logic associated with a second processing lane and with data associated with a second processing lane and retrieved by a first checker logic associated with the first processing lane. A failure in the memory is determined if there is no match.

Abstract: A method for initializing a chain of non-initialized data collectors is disclosed. The chain of non-initialized data collectors are coupled to a controller. In a first step communication between the controller and each data collector in the chain of non-initialized collectors is disabled, except for an active non-initialized data collector, The active non-initialized collector is coupled to the controller and any remaining non-initialized data collectors. Next, the active non-initialized data collector is initialized by assigning an identification number to the active non-initialized data collectors. The active non-initialized collector becomes an initialized data collector. Then, communication is restored between the initialized data collector and a next active non-initialized data collector in the chain of non-initialized data collectors. The method repeats until all non-initialized data collectors are initialized.

Abstract: A method for quenching a metal workpiece having an internal passage with at least one open end, wherein the workpiece has a plurality of bore holes extending between the internal passage and the external surface, the method including the steps of pressurizing the internal passage with a pressurized fluid source to prevent quenchant from entering the internal passage and the plurality of bore holes; flowing quenchant across the external surface to cool and harden the workpiece.

Abstract: A method for determining damage in a structural health monitoring system comprising a plurality of sensors distributed across a structure is disclosed. The method includes decomposing the plurality of sensors into a plurality of sub-arrays. Each sub-array is associated with a current sensor. For each sub-array, data is collected, the data corresponding to electrical signals produced by waves initiated by the current sensor and detected by a receiving sensor. The data is used to calculate a damage measurement for the sub-array. Then, the damage measurement determined for each sub-array is combined to determining an overall damage assessment from the combined damage measurements.

Abstract: A method for coating a substrate is disclosed. The method includes applying a coating to a surface of the substrate and heating the applied coating and a first portion of the substrate. The first portion includes the surface of the substrate and less than the entire substrate. The method further includes cooling the applied coating and the first portion.

Abstract: A method for operating a memory checker in a command monitoring architecture comprising at least two processing lanes comprises a first step of receiving a command to activate a first test mode. The first test mode comprises an initial step of inverting data read from a memory and inverting data written to the memory. Next, it is determined if there is a match between data associated with a first processing lane and retrieved by a second checker logic associated with a second processing lane and with data associated with a second processing lane and retrieved by a first checker logic associated with the first processing lane. A failure in the memory is determined if there is no match.

Abstract: A structural health management system is disclosed. The structural health management system comprises a zone of sensors. A first sensor data collector is coupled to a first subset of the sensors in the zone; and a second sensor data collector coupled to a second subset of the sensors in the zone. In the present invention, loss of a sensor data collector does not result in the loss of ability to perform nondestructive testing in an entire zone.

Abstract: In the present invention, a method is provided for installing and locating a plurality of sensors distributed on a structure as part of a structural health monitoring system. The method includes verifying the proper installation of the plurality of sensors and determining the location of the plurality of sensors. In one aspect of the present invention, the step of verifying the proper installation further comprises verifying that each of the plurality of sensors are properly coupled to a sensor data collector and verifying that each of the plurality of sensors are installed in a proper location. In another aspect of the present invention, the step of determining the location of the plurality of sensors further comprises determining the positioning of each sensor in reference to fixed structures in the structure.

Abstract: A wafer transfer apparatus capable of simultaneously transferring multiple semiconductor wafers to and from a furnace or similar columnar wafer station. The apparatus has a cantilevered extension which extends from a main part. The extension is preferably mounted for pivotal movement. The extension has a distal engagement head mounted thereon. The distal engagement head is moved between a lateral position and an upstanding engaging position. The engagement head has a plurality of wafer support features which support the far edges of a group of wafers. The near edges of the wafers are held by proximal wafer contact heads.

Abstract: A wafer transfer apparatus capable of simultaneously transferring multiple semiconductor wafers to and from a furnace or similar columnar wafer station. The apparatus has a cantilevered extension which extends from a main part. The extension is preferably mounted for pivotal movement. The extension has a distal engagement head mounted thereon. The distal engagement head is moved between a lateral position and an upstanding engaging position. The engagement head has a plurality of wafer support features which support the far edges of a group of wafers. The near edges of the wafers are held by proximal wafer contact heads.

Abstract: A highly reliable data processing system using the pair-spare architecture obviates the need for separate memory arrays for each processor. A single memory is shared between each pair of processors wherein a linear block code error detection scheme is implemented with each shared memory, wherein the effect of random memory faults is sufficiently detected such that the inherent fault tolerance of a pair-spare architecture is not compromised.

Abstract: Apparatus for controlling the operation of drilling or completion fluid pumps and a choke is disclosed. Control over the drilling or completion fluid pump can be independent of control of the choke. Control over the drilling fluid pump can be transferred to the choke control location. Pneumatic and electrical networks suitable for use with engine driven and electrically powered rigs are disclosed.

Abstract: An improved band seal clamp for clamping of tubular members is disclosed which features a band-like clamping member having slots formed in its ends for interaction with bolts held rigidly in holes formed in a spacing member disposed between the ends of the clamp. The ends of the band are shaped to define surfaces at an angle with respect to the surface of the tubular members which coact with force bars having corresponding shapes. Throughbolts fit through the slots in the band, holes in the force bars and the holes in the spacing member, so that upon tightening of the bolts the ends of the band clamp are forced outward, thus exerting a compressive stress on the tubular member.