Abstract: A retaining assembly for coupling a fluid end component to a fluid end casing. The retaining assembly includes a pair for clamp members, each of which has a pair of rails that define a wedge-shaped groove therebetween. The groove applying an increasing amount of pre-load force or tension to a flange of the fluid end components and a flange of the fluid end casing to drive them together. The amount of pre-load tension applied can vary and can be determined by the user and amount of tightening of the clamp members.

Abstract: The present invention comprises a multiple-component projectile which remains intact after leaving the barrel of a gun. The projectile comprises a core which includes a leading tip and a cylindrical shaft section which extends aft of the tip. A sabot sleeve surrounds the cylindrical shaft section and has a sufficient diameter to engage the rifling on the interior of a gun barrel. A rear cap connects to the aft end of the shaft section and secures the sabot sleeve to the shaft and tip. Preferred embodiments of the present invention comprise an annular lip and slot on the leading tip configured to receive the leading edge of the sabot sleeve and prevent it from separating from the core while traveling through the gun barrel and thereafter. The rear cap may also comprise an annular lip and slot configured to receive the trailing edge of the sabot sleeve and further lock the sleeve to the core thereby preventing longitudinal movement of the sleeve relative to the core.

Abstract: A scan data flip-flop having improved timing characteristics is provided. A scan flip-flop includes: a first data input coupled with a first latch; a second data input coupled with said first latch; a clock input coupled with said first latch; a data control input; and a data controller operably coupled with said clock input and said data control input and said first latch; said data controller being configured to generate an enable signal responsive to a clock signal from said clock input and a data control signal from said data control input, and said enable signal to control the input of data into said first latch. The normal or first data input signal is preferably directly applied to the first latch within the scan data flip-flop according to the present invention. The data controller of the scan data flip-flop according to the present invention is preferably void of a multiplexer. A method for controlling the entry of data into a scan data flip-flop is also provided.

Abstract: A scan flip-flop includes a data input, a scan input, a mode selection input, a mode control input and a clock input. When the mode selection input is set to a first selection value, and the mode control input is set to a first control value, the scan flip-flop operates as a D flip-flop. When the mode selection input is set to a second selection value, the scan flip-flop shifts in a scan input value on the scan input when one of the mode control input and the clock input is toggled. Also, as long as the mode selection input is set to the first selection value, and the mode control input is set to a second control value, the scan flip-flop holds a current value within the scan flip-flop.

Abstract: A data communications system has a layered communication architecture including network services protocols including a link layer and higher level protocols, and has IBM or IBM-compatible synchronous data link control (SDLC) devices including a host computer and a plurality of end user devices desiring to communicate across an X.25 packet-switching network (PSN) of the communications system. A packet assembler/disassembler (PAD) support X.25 communication across the PSN between the SDLC-utilizing host computer and the SDLC-utilizing end user device. In one embodiment, separate high level data link control (HDLC) PADs are provided at each end of the PSN operationally associated with the host computer and the plurality of end user devices, respectively.