Abstract: An edging system is disclosed herein. The edging system includes a set of annular members having a plurality of first engagement portions and a plurality of second engagement portions. In some embodiments, each annular member is modular. Adjacent annular members are configured to join together via engagement of the plurality of first engagement portions and the plurality of second engagement portions thereon. The edging system edging provides a barrier for the plant, protecting the plant whilst providing a tidy and aesthetically pleasing appearance to the plant and the yard/garden as a whole.

Abstract: One embodiment of a downhole jet pump 10 includes an exterior pump housing 12, power fluid jet nozzle 30, mixing tube 32, and a carrier 40 including a plurality of venturi ports 38. A nose piece 48 is provided fluidly downstream from the mixing tube 32. A diffuser 46 is downstream from the nose piece, and preferably forms a unitary body from the lower end of the nose piece to the side port of the pump housing. An inlet valve 100 passes formation fluid into the pump housing and to the venturi ports.

Abstract: One embodiment of a downhole jet pump 10 includes an exterior pump housing 12, power fluid jet nozzle 30, mixing tube 32, and a carrier 40 including a plurality of venturi ports 38. A nose piece 48 is provided fluidly downstream from the mixing tube 32. A diffuser 46 is downstream from the nose piece, and preferably forms a unitary body from the lower end of the nose piece to the side port of the pump housing. An inlet valve 100 passes formation fluid into the pump housing and to the venturi ports.

Abstract: A fluid recovery system 10 for collecting formation fluid at the surface of a well 12 includes a downhole jet pump 20 and a surface diaphragm pump 40 having a plurality of diaphragms 42. The jet pump includes a fluid nozzle 22, an intake 24 directing the formation fluid into a jet 26, a mixing tube 28 for mixing the power fluid and the formation fluid, and a diffuser 30 for converting the velocity of the mixed fluid to pressure. A flow meter 50 and a pressure sensor 52 monitor the quantity and pressure of the power fluid to the jet pump.

Abstract: The restaurant electronic menu, ordering and payment devices and the order processing computer system allows restaurant patrons to review the menu, select food and beverages from the menu and electronically place their orders even before a seating in the restaurant is available. The system provides food and beverage orders to the kitchen staff well ahead of the convention order placing systems and permits patrons to review, print and pay their guest check electronically from their restaurant table, at will, without waiting for service or depending upon the responsiveness and staff levels of the restaurant, thereby providing the best possible service in the shortest possible time and eliminating bottlenecks and headaches of the conventional restaurant order and payment systems.

Abstract: A method of evaluating constraint functions, the evaluation being based at least in part on a control blade movement criteria.