IP Library Granted Patent US 8,256,623
Granted Patent B2
US 8,256,623 · App. 12/597,089 · Granted Sep 4, 2012

Vibrating screen panel

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Quick Facts
Patent No.
US 8,256,623
App. No.
12/597,089
Granted
Sep 4, 2012
Kind
B2
Abstract

A screen panel for use in a vibrating screen device. The screen panel has a plurality of in-flow slots and cross-flow slots arranged in a regular pattern to provide enhanced open area for a given slot size.

Claims (19)

1. A screen panel of resiliently deformable material comprising a plurality of longitudinal in-flow slots and transverse cross-flow slots forming a regular pattern, wherein the in-flow slots have side walls that are substantially aligned with an in-flow direction and the cross-flow slots have side walls that are substantially aligned with a cross-flow direction, the cross-flow direction being substantially perpendicular to the in-flow direction, and wherein either of the in-flow slots or cross-flow slots are arranged in a staggered pattern.

2. The screen panel of claim 1 , wherein the either of the in-flow slots or cross-flow slots are arranged in a staggered overlapping pattern.

3. The screen panel of claim 1 , wherein the other of the in-flow slots or cross-flow slots are also arranged in a staggered pattern.

4. The screen panel of claim 1 wherein the in-flow slots and the cross- flow slots form a ‘T’ shape.

5. The screen panel of claim 1 wherein the in-flow slots and the cross- flow slots form a ‘cross’ shape.

6. The screen panel of claim 1 comprising multiple in-flow slots and cross-flow slots forming a compound pattern.

7. The screen panel of any preceding claim having an open area of greater than 15%.

8. The screen panel of claim 1 having a slot width of about 0.5 mm and an open area of greater than 15%.

9. The screen panel of claim 1 having a slot width about 0.75 mm and an open area of greater than 20%.

10. The screen panel of claim 1 having a slot width about 1.0 mm and an open area of greater than 25%.

11. The screen panel of claim 1 having a slot width about 1.25 mm and an open area of greater than 30%.

12. The screen panel of claim 1 comprising at least one engagement side.

13. The screen panel of claim 1 comprising two plain sides and two engagement sides.

14. The screen panel of claim 12 wherein the engagement side includes grooves for engagement with corresponding spigots of a screen deck.

15. The screen panel of claim 1 further comprising ribs dividing the panel into four segments, each segment having the same regular pattern of slots.

16. The screen panel of any of claim 2 having a slot width of about 0.5 mm and an open area of greater than 15%.

17. The screen panel of claim 2 having a slot width about 0.75 mm and an open area of greater than 20%.

18. The screen panel of claim 2 having a slot width about 1.0 mm and an open area of greater than 25%.

19. The screen panel of claim 13 wherein the engagement side includes grooves for engagement with corresponding spigots of a screen deck.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 27, 2016
From: LUDOWICI AUSTRALIA PTY LTD
To: FLSMIDTH A/S
Reel/Frame 039275/0367 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 29, 2016
From: LUDOWICI AUSTRALIA PTY LTD
To: FLSMIDTH A/S
Reel/Frame 038422/0094 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 22, 2009
From: OLSEN, PETER MARTIN; PRYDE, BRADLEY ALAN
To: LUDOWICI AUSTRALIA PTY LTD
Reel/Frame 023410/0434 →