Pool cleaner with hydraulic timer assembly

• US 8,990,990 B2
• Filed: 10/03/2011
• Issued: 03/31/2015
• Est. Priority Date: 10/03/2011
• Status: Active Grant

• Current Assignee: Pentair Water Pool And Spa Incorporated (Pentair Plc (Ireland))
• Original Assignee: Pentair Water Pool And Spa Incorporated (Pentair Plc (Ireland))
• Inventors: Gopalan, Suresh, Aggarwal, Nitin, Kaladharan, Jayamurali, King, Brian, Richiuso, Leonard
• Primary Examiner(s): REDDING, DAVID A
• Application Number:
  US13/252,103
• Publication Number:
  US 20130081656A1
• Time in Patent Office: 1,275 Days
• Field of Search: 15/17, 553/74, 180/7.3
• US Class Current: 15/1.7
• CPC Class Codes: A47L 9/1427 Means for mounting or attaching bags or filtering receptacles in suction cleaners; Adapters
• CPC Class Codes: B60K 3/04 of turbine type
• CPC Class Codes: E04H 4/1654 Self-propelled cleaners

Abstract

Embodiments of the invention provide a system and method for operating a pressure-driven pool cleaner. The system includes a hydraulic timer assembly and a venturi vacuum assembly. The method includes directing water to the hydraulic timer assembly and the venturi vacuum assembly, driving the pressure-driven pool cleaner with the hydraulic timer assembly according to a timed movement cycle including a combination of backward movement and forward movement, and suctioning debris with the venturi vacuum assembly. The venturi vacuum assembly is independent of the hydraulic timer assembly so that suctioning occurs during the backward movement and the forward movement.

Claims

1. A pool cleaner comprising:

a housing;

a supply mast;

a distributor manifold in fluid communication with the supply mast;

a timer disc assembly including at least a first outlet port, a second outlet port, and a third outlet port, the timer disc assembly capable of receiving pressurized fluid from the distributor manifold and redirecting the pressurized fluid to at least one of the first outlet port, the second outlet port, and the third outlet port; and

a first thrust jet in fluid communication with the first outlet port, the first thrust jet positioned along the housing to direct pressurized fluid away from the rear of the housing to assist in forward motion of the pool cleaner;

a second thrust jet in fluid communication with the second outlet port, the second thrust jet positioned along the housing to direct pressurized fluid away from the front of the housing to assist in backward motion of the pool cleaner; and

a third thrust jet in fluid communication with the third outlet port, the third thrust jet positioned along the housing to direct pressurized fluid away from the side of the housing to assist in turning motion of the pool cleaner.

2. The pool cleaner of claim 1, wherein the timer disc assembly includes at least one disc positioned adjacent to the first outlet port, the second outlet port, and the third outlet port, the at least one disc including at least one slot there through and capable of rotating within the timer disc assembly so that the at least one slot periodically aligns with at least one of the first outlet port, the second outlet port, and the third outlet port in order to allow the pressurized fluid to exit the timer disc assembly through at least one of the first outlet port, the second outlet port, and the third outlet port.

3. The pool cleaner of claim 2, wherein the at least one disc includes a first disc and a second disc positioned against opposite inner surfaces of the timer disc assembly.

4. The pool cleaner of claim 1, and further comprising a venturi vacuum assembly receiving pressurized fluid from the distributor manifold, the venturi vacuum assembly capable of vacuuming debris from an underside of the housing during forward motion, backward motion, and turning motion of the pool cleaner.

5. The pool cleaner of claim 1, and further comprising a timer valve gear box receiving the pressurized fluid from the distributor manifold, the timer valve gear box includes a paddle wheel rotated by the incoming pressurized fluid, and a gear train rotated by the paddle wheel, the gear train controlling the timer disc assembly to redirect the pressurized fluid to at least one of the first outlet port, the second outlet port, and the third outlet port in a timed manner.

6. The pool cleaner of claim 1, and further comprising at least two drive wheels driven by a turbine assembly, wherein the timer disc assembly includes a fourth outlet port and a fifth outlet port, the turbine assembly includes a first opening in fluid communication with the fourth outlet port, wherein pressurized fluid from the fourth outlet port through the first opening drives the turbine assembly in a first direction to assist in forward motion of the pool cleaner, and the turbine assembly includes a second opening in fluid communication with the fifth outlet port, wherein pressurized fluid from the fifth outlet port through the second opening drives the turbine assembly in a second direction to assist in backward motion of the pool cleaner.