公开(公告)号：WO2019051577A1

公开(公告)日：2019-03-21

申请号：PCT/CA2017/051461

申请日：2017-12-04

Applicant: LEONARD, Jeremy

Inventor： LEONARD, Jeremy

IPC: F04D13/08 ,  E21B43/12 ,  F04D13/12 ,  F04D15/00

Abstract: A system for pumping fluid is provided, having two or more submersible pumps, each submersible pump having an inlet, an outlet, a pumping mechanism that pumps fluid from the inlet to the outlet, a fluid level sensor for measuring a fluid level above the inlet, and a controller. The controller is programmed to activate the pumping mechanism when the fluid level sensor senses a minimum fluid level above the inlet and control the speed of the pumping mechanism based on the fluid level sensed by the fluid level sensor above the minimum fluid level between a minimum operating pump speed and a maximum operating pump speed. The submersible pumps are arranged in a vertical stack with the inlets of the submersible pumps spaced vertically. Each controller of each submersible pump operates autonomously relative to controllers of other submersible pumps in the vertical stack.

公开(公告)号：WO2020142827A1

公开(公告)日：2020-07-16

申请号：PCT/CA2019/051399

申请日：2019-09-30

Applicant: LEONARD, Jeremy

Inventor： LEONARD, Jeremy

IPC: B04B1/20 ,  B01D21/26 ,  B04B11/02 ,  B04B7/18

Abstract: A centrifugal separator for separating solids from a liquid stream has a rotating drum with a perforated outer wall, an auger in the rotating drum, and a driver that rotates the drum and the auger. The drum has an inlet at a first end for receiving the liquid stream, and a solids outlet at a second end. The auger has a helical flight with an outer edge that is immediately adjacent to an inner surface of the outer wall. The driver rotates the rotating drum to apply a centrifugal force to fluids within the rotating drum such that liquid exits via the perforated outer wall, and the auger is rotated at a different speed such that the auger removes solids from an inner surface of the rotating drum and conveys the solids toward the solids outlet.

公开(公告)号：WO2019213733A1

公开(公告)日：2019-11-14

申请号：PCT/CA2018/050622

申请日：2018-05-28

Applicant: LEONARD, Jeremy

Inventor： LEONARD, Jeremy

IPC: E02F5/28 ,  E02F3/88

Abstract: A method of dredging a bottom of a body of water is provided. Winching stations are positioned around the perimeter of an area to be dredged and a cable from each winching station is connected to a float. The cables pass through a variable resistance pulley assembly attached to a submersible assembly having a cutter and a submersible pump and are tensioned to suspend the submersible assembly. The cutter and submersible pump are activated and the winches are controlled to move the submersible assembly in a dredging pattern. When an obstacle is encountered the resistance of the pulley assembly is decreased and sufficient tension is applied to the cables to lift the submersible assembly toward the float.