Abstract: A motor and pump assembly for use in a wellbore includes a downhole motor producing a rotary output, a reciprocating plunger for pumping fluid up a tubing string, and a drive linkage supported within the hollow tubular housing having a rotary input in connection with the rotary output of the motor and a reciprocating output which is arranged for longitudinal sliding movement with the reciprocating plunger and which is driven responsive to rotation of the rotary input to drive the plunger. The drive linkage includes a lead screw, a sleeve member having a closed end coupled to the plunger, and a follower supported on an inner side of the sleeve member in operative connection to the lead screw to drive longitudinal sliding movement of the sleeve member responsive to rotation of the lead screw.

Abstract: Methods and apparatus for material handling in an order fulfillment center. An order fulfillment system may include inventory storage, a processing area, and a control system. The inventory storage may in some instances include two storage areas, and in some cases the processing area may be disposed between the two storage areas. The processing area may include a router module that is configured to receive inventory items that have been picked from the inventory storage. Inventory items may be received by the router module via conveyance receptacles (e.g., totes, bins) that are conveyed using a conveyor mechanism. The processing area may also include a plurality of processing modules that may be configured to receive inventory items from the router module. In some instances, the processing modules may receive the inventory items via conveyance receptacles that are conveyed using the conveyor mechanism.

Abstract: Methods and apparatus for material handling in an order fulfillment center. An order fulfillment system may include inventory storage, a processing area, and a control system. The inventory storage may in some instances include two storage areas, and in some cases the processing area may be disposed between the two storage areas. The processing area may include a router module that is configured to receive inventory items that have been picked from the inventory storage. Inventory items may be received by the router module via conveyance receptacles (e.g., totes, bins) that are conveyed using a conveyor mechanism. The processing area may also include a plurality of processing modules that may be configured to receive inventory items from the router module. In some instances, the processing modules may receive the inventory items via conveyance receptacles that are conveyed using the conveyor mechanism.

Abstract: Methods and apparatus for material handling in an order fulfillment center. An order fulfillment system may include inventory storage, a processing area, and a control system. The inventory storage may in some instances include two storage areas, and in some cases the processing area may be disposed between the two storage areas. The processing area may include a router module that is configured to receive inventory items that have been picked from the inventory storage. Inventory items may be received by the router module via conveyance receptacles (e.g., totes, bins) that are conveyed using a conveyor mechanism. The processing area may also include a plurality of processing modules that may be configured to receive inventory items from the router module. In some instances, the processing modules may receive the inventory items via conveyance receptacles that are conveyed using the conveyor mechanism.