IP Library Granted Patent US 7,784,596
Granted Patent B2
US 7,784,596 · App. 12/399,230 · Granted Aug 31, 2010

Hanging chute

Assignee: Durex Products, Inc.
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Quick Facts
Patent No.
US 7,784,596
App. No.
12/399,230
Granted
Aug 31, 2010
Kind
B2
Abstract

A hanging chute with a rib cage is described. In accordance with one embodiment of the invention, a chute constructed from flexible wear material with a rib cage to reinforce the chute. In particular, several ribs are dispersed throughout the length of the flexible sheet for support. A flexible sheet has a reinforced edge with varying thicknesses to accommodate different weight loads and abrasive conditions. Furthermore, the chute has interlocking edges for ease of constructing long lengths from a series of shorter sections. These shorter sections are easier to transport to a processing plant or other site where the chute is to be installed. Preferably the chute is easily maintainable and can incorporate wear inserts for additional wear resistance.

Claims (24)

1. A flexible sheet for use in a hanging chute utilized in moving materials, the flexible sheet comprising:

at least one wall with an inflection point in an area of the at least one wall;

an upper ridge formed along an edge of the at least one wall;

a sloping bottom located adjacent to the inflection point; and

a reinforced edge formed integrally with a portion of the sloping bottom.

2. The flexible sheet of claim 1 further comprising rib channels molded into the sheet and operatively configured for engagement with the at least one rib.

3. The flexible sheet of claim 1 wherein the reinforced edge is thicker than other portions of the flexible sheet for added strength.

4. The flexible sheet of claim 1 further comprising interlocking edges operatively configured to facilitate in construction and transportation of chutes having more than one flexible sheet.

5. The flexible sheet of claim 1 further comprising material molded into the flexible sheet for increased strength over sheets without reinforcement.

6. The flexible sheet of claim 1 further comprising a wear insert formed into the flexible sheet.

7. The flexible sheet of claim 6 wherein the wear insert is composed of a material or composite material selected from a group consisting of: ceramics, carbides, chrome iron, iron, chrome white iron, rubber, and steel.

8. The flexible sheet of claim 1 composed of an elastomer selected from a group consisting of urethane and rubber.

9. The flexible sheet of claim 1 composed of a material or composite material selected from a group consisting of: polyurethane, polyethylene, high density polyethylene, polypropylene, glass reinforced plastics, polyethylene terephthalate, and polyestrene.

10. The flexible sheet of claim 1 comprising a rib channel operatively configured to engage at least one rib within the hanging chute to resist the flexible sheet from moving within the hanging chute along with the material flow.

11. A hanging chute comprising the flexible sheet of claim 1 and at least one rib wherein the at least one rib is operatively configured to engage the flexible sheet.

12. The hanging chute of claim 11 further comprising a feed or discharge end proximate to one end along a length of the flexible sheet.

13. The hanging chute of claim 12 further comprising a chute cap operatively configured for attachment to the feed or discharge end.

14. The hanging chute of claim 12 further comprising a spout operatively configured for attachment to the feed or discharge end.

15. The hanging chute of claim 11 wherein the flexible sheet upper ridge is operatively configured for engagement with a top rib.

16. The hanging chute of claim 15 wherein the flexible sheet further comprises an overhanging edge adjacent to the upper ridge that together form a channel operatively configured for placement of the top rib in the channel.

17. The hanging chute of claim 15 wherein the flexible sheet upper ridge further comprises a snap fit connector operatively configured for engagement with a reciprocal snap fit connector on the top rib.

18. The hanging chute of claim 11 further comprising a lid surface operatively configured to engage the at least one wall of the flexible sheet such that materials are enclosed when moving through the chute.

19. The flexible sheet of claim 1 further comprising a lower ridge spaced apart from the upper ridge and formed in an area of the at least one wall.

20. A hanging chute comprising the flexible sheet of claim 19 and at least one rib wherein the at least one rib is operatively configured to engage the flexible sheet, and wherein the flexible sheet lower ridge is operatively configured for engagement with the at least one rib to act as a latching mechanism to hold the flexible sheet in place.

Assignments (4)
MERGER Recorded May 13, 2016
From: DUREX PRODUCTS, INC.
To: LINATEX CORPORATION OF AMERICA
Reel/Frame 038582/0580 →
MERGER Recorded May 13, 2016
From: LINATEX CORPORATION OF AMERICA, LLC
To: WEIR SLURRY GROUP, INC.
Reel/Frame 038582/0919 →
CHANGE OF NAME Recorded May 13, 2016
From: LINATEX CORPORATION OF AMERICA
To: LINATEX CORPORATION OF AMERICA, LLC
Reel/Frame 038703/0697 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 6, 2010
From: SAWALL, KIRK D.; BERNHOLT, DALE R.; FEUERHELM, GABRIEL G.
To: DUREX PRODUCTS
Reel/Frame 024346/0712 →
Continuity (2)
Continuation 1166833500 · Jan 29, 2007
Related Publication 20090166148A1 · Jul 2, 2009