Abstract: A pressureless infeed conveyor table for forming a predetermined spacing between articles on a conveyor in order to create a uniform column for a packaging process comprises reciprocating carriages that are driven directly by a reversible servo-motor. By directly driving the carriages, the weight of the accompanying sprocket assembly is decreased and the speed at which the carriages move is increased to improve efficiency and processing time.

Abstract: A high pressure poppet-type regulating valve for controlling fluids that have been pressurized up to approximately 20,000 psi (1,400 kg/cm.sup.2). In the preferred embodiment the disclosed gas-dampened valve includes a stainless steel tapered poppet which is slidably positioned within a bore of a stainless steel valve body having an integral tapered valve seat. A portion of the poppet has at least one tapered section having a preselected taper angle. The valve seat has a preselected taper as well. Preferably the tapered section of has a taper angle that is up to approximately 10% larger the taper angle of the valve seat to reduce erosion of the poppet and seat thereby allowing the poppet to be made of stainless steel in lieu of a more wear resistant material. The valve body of the preferred embodiment further includes opposed discharge ports for minimizing pressure imbalances thereby reducing cavitation-induced damage to the valve.

Abstract: A rheometer comprises a thin-walled bob having two ends, adjacent at least one of which ends there is disposed a respective flow diverter plate to eliminate adverse end effects caused by swirling fluid in the rheometer.