Abstract: A filter within a filter cartridge design is described that includes a sealing structure on an endplate of an outer filter element. Generally, the sealing structure includes an annular flange on the endplate that can directly seal against an interior surface of a housing when the filter cartridge is assembled for use. During filtration, the annular flange prevents a working fluid from bypassing the outer filter element. The sealing flange can seal with the housing in a press fit engagement.

Abstract: A filter within a filter cartridge design is described that includes a sealing structure on an endplate of an outer filter element. Generally, the sealing structure includes an annular flange on the endplate that can directly seal against an interior surface of a housing when the filter cartridge is assembled for use. During filtration, the annular flange prevents a working fluid from bypassing the outer filter element. The sealing flange can seal with the housing in a press fit engagement.

Abstract: A filter within a filter cartridge design is described that includes a sealing structure on an endplate of an outer filter element. Generally, the sealing structure includes an annular flange on the endplate that can directly seal against an interior surface of a housing when the filter cartridge is assembled for use. During filtration, the annular flange prevents a working fluid from bypassing the outer filter element. The sealing flange can seal with the housing in a press fit engagement.

Abstract: A filter within a filter cartridge design is described that includes a sealing structure on an endplate of an outer filter element. Generally, the sealing structure includes an annular flange on the endplate that can directly seal against an interior surface of a housing when the filter cartridge is assembled for use. During filtration, the annular flange prevents a working fluid from bypassing the outer filter element. The sealing flange can seal with the housing in a press fit engagement.

Abstract: New and unique improvements of prior known M4/M16 firearms are disclosed that comprise (A) a bolt which, in addition to all of the normal M4/M16 features is configured or reconfigured to accept a bridged extractor spring which straddles the firing pin and presses against the bottom of the extractor with the bridging wire, and (B) a bridged extractor spring which is a single part, wound with dual spaced helical coils connected with a bridge wire that maintains the spacing at the top of the spring. The bridge wire preferably crosses diagonally between and is tangent to both coils.

Abstract: New and unique improvements of prior known M4/M16 firearms are disclosed that comprise (A) a bolt which, in addition to all of the normal M4/M16 features is configured or reconfigured to accept a bridged extractor spring which straddles the firing pin and presses against the bottom of the extractor with the bridging wire, and (B) a bridged extractor spring which is a single part, wound with dual spaced helical coils connected with a bridge wire that maintains the spacing at the top of the spring. The bridge wire preferably crosses diagonally between and is tangent to both coils.

Abstract: An NMR system comprises an NMR probe comprising multiple NMR detection sites. Each of the multiple NMR detection sites comprises a sample holding void and an associated NMR microcoil. The NMR system further comprises a controllable fluid router operative to direct fluid sample to the multiple NMR detection sites.

Abstract: An NMR system comprises an NMR probe comprising multiple NMR detection sites. Each of the multiple NMR detection sites comprises a sample holding void and an associated NMR microcoil. The NMR system further comprises a controllable fluid router operative to direct fluid sample to the multiple NMR detection sites.

Abstract: An NMR system comprises an NMR probe comprising multiple NMR detection sites. Each of the multiple NMR detection sites comprises a sample holding void and an associated NMR microcoil. The NMR system further comprises a controllable fluid router operative to direct fluid sample to the multiple NMR detection sites.

Abstract: An NMR system comprises an NMR probe comprising multiple NMR detection sites. Each of the multiple NMR detection sites comprises a sample holding void and an associated NMR microcoil. The NMR system further comprises a controllable fluid router operative to direct fluid sample to the multiple NMR detection sites.

Abstract: An NMR method of analyzing an analyte comprises feeding an analyte sample fluid to an NMR flow cell. The NMR flow cell comprises an RF microcoil operably associated with an enlarged containment region. The mobile phase of the analyte sample flowing through the NMR flow cell has a solvent gradient greater than 10% per minute. The analyte sample fluid can be fed to the NMR flow cell from an analyte extraction chamber, e.g., operative to perform liquid chromatography, capillary electrophoresis, or the like, especially a capillary-based analyte extraction chamber integrated in an NMR probe with the NMR flow cell. A sample volume is held in the NMR flow cell for equilibration less than 1 hour, preferably less than 30 minutes prior to actuating NMR analysis of the observe volume in the microcoil.

Abstract: An NMR system comprises an NMR probe comprising multiple NMR detection sites. Each of the multiple NMR detection sites comprises a sample holding void and an associated NMR microcoil. The NMR system further comprises a controllable fluid router operative to direct fluid sample to the multiple NMR detection sites.

Abstract: An NMR method of analyzing an analyte comprises feeding an analyte sample fluid to an NMR flow cell. The NMR flow cell comprises an RF microcoil operably associated with an enlarged containment region. The mobile phase of the analyte sample flowing through the NMR flow cell has a solvent gradient greater than 10% per minute. The analyte sample fluid can be fed to the NMR flow cell from an analyte extraction chamber, e.g., operative to perform liquid chromatography, capillary electrophoresis, or the like, especially a capillary-based analyte extraction chamber integrated in an NMR probe with the NMR flow cell. A sample volume is held in the NMR flow cell for equilibration less than 1 hour, preferably less than 30 minutes prior to actuating NMR analysis of the observe volume in the microcoil.

Abstract: A backup system is provided for a gate screw assembly of a race car transport trailer. The gate screw assembly includes a pair of screws which are rotated by an electric motor and interconnecting linkage arms so as to raise and lower the gate. The backup system includes rotatable shafts operatively connected to the drive shaft of the motor. Upon failure of the motor, the shafts of the backup system can be rotated by a drill or a wrench, thereby rotating the motor drive shaft, the linkage arms, and the gate screws, so that the gate can be moved between the raised and lowered positions.

Abstract: A tripod universal joint includes a shaft with a forked end or tulip which is held in assembled relationship with a tripod spider by a spring clip having angularly spaced legs adapted to snap releasably into grooves in the tulip. The spider is located in a cup-shaped housing. To facilitate assembly of the tulip with the spider, a resiliently flexible washer is placed on the bottom of the housing and holds the spring clip upwardly in a position permitting the legs of the clip to interlock with the tulip when the tulip is moved axially toward the clip. After assembly of the tulip with the clip has been completed, the spacer washer is removed from the housing by pulling on a flexible retrieval wire which is attached to the washer.

Abstract: A free-plunging constant velocity joint of the tripod type in which rollers are disposed in rolling engagement with the tracks of a tulip member and are rotatably and slidably supported by needles on the trunnions of a tripod. Each roller has an outer bearing surface and an inner bearing surface, the hardness of the outer bearing surface being less than the hardness of the inner bearing surface and less than the hardness of the tracks in order to reduce accelerated wear of the tracks as the roller rolls back and forth on the tracks.

Abstract: Studs are threaded into the end walls of the bearing cups of a universal joint cross and may be adjusted into contact with the outer ends of the trunnions to take up axial end play between the bearings cups and the trunnions while avoiding axial pressure between the cups and the trunnions.

Abstract: The cross includes four angularly spaced and outwardly projecting bearing assemblies each comprising a trunnion, an annular row of elongated rollers, and a bearing cup having a cavity which receives the rollers. The rollers of each bearing assembly are convexly crowned along their lengths so that forces transferred between the bearing cup and the trunnion are transmitted through each roller at a pressure area along the midportion thereof, the pressure area spreading or expanding as the forces increase. In a modified embodiment, the trunnion of each bearing assembly is convexly crowned.