John J Rector

US Patent:

57798877, Jul 14, 1998

Filed:

Jan 7, 1997

Appl. No.:

8/778055

Inventors:

John J. Rector - Visalia CA
Thomas Lisy - Clovis CA

Assignee:

Claude Laval Corporation - Fresno CA

International Classification:

B01D 29075
E02B 508

US Classification:

210159

Abstract:

A burden removal system for removing solid burden from a stream of water. A screen has an upper and a lower surface with pores extending between them. The upper surface is substantially horizontal. A drive bar with a wiper bade is cyclically bi-directionally driven with the blade pushing burden along the upper surface in one direction and rising above the burden in the opposite direction. Jet sprays discharge water against the lower surface, preferably just ahead of the wiper blade to assist the blade in moving the burden and cleaning the pores.

US Patent:

54258766, Jun 20, 1995

Filed:

Oct 25, 1993

Appl. No.:

8/142665

Inventors:

John L. Rector - Woodlake CA

Assignee:

Claude Laval Corporation - Fresno CA

International Classification:

B01D 2968
B01D 2992

US Classification:

210354

Abstract:

A self-cleaning gravity screen for removing particulate material from a liquid stream. The screen slopes, and beneath it a rotary wand sweeps against its lower side to keep the screen perforations open and assist movement of retained solids along the screen. The wand is driven by a rotary water wheel.