IP Library Granted Patent US 7,594,290
Granted Patent B2
US 7,594,290 · App. 11/513,202 · Granted Sep 29, 2009

Dock leveler bottom pad

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Quick Facts
Patent No.
US 7,594,290
App. No.
11/513,202
Granted
Sep 29, 2009
Kind
B2
Abstract

A dock leveler sealing system that includes a barrier configured to be attached to a dock leveler and a hinged region located in the barrier and configured to facilitate one portion of the barrier moving with respect to a second portion of the barrier. The dock leveler sealing system also includes a biasing apparatus attached to the barrier and configured to position the first portion of the barrier at a bias relative to the second portion of the barrier. Also, a method of providing a seal between a loading dock and an area outside of the loading dock.

Claims (16)

1. A dock leveler sealing system, comprising:

a barrier configured to be attached to a dock leveler;

hinged region located in the barrier and configured to facilitate one portion of the barrier moving with respect to a second portion of the barrier; and

biasing apparatus attached to the barrier and configured to position the first portion of the barrier at a bias relative to the second portion of the barrier, the biasing apparatus comprising a weight incorporated into a sleeve that is attached to the barrier at a first end of the sleeve and that is detached from the barrier at a second end of the sleeve.

2. The dock leveler sealing system of claim 1 , wherein the barrier comprises a compressible pad.

3. The dock leveler sealing system of claim 2 , wherein the barrier further comprises fabric substantially surrounding the compressible pad and wherein the hinged region comprises stitching through the pad and the fabric.

4. The dock leveler sealing system of claim 1 , wherein the weight extends substantially continuously across an entire dimension of the barrier.

5. The dock leveler sealing system of claim 1 , wherein the barrier comprises a compressible pad and a fabric that substantially surrounds the compressible pad and wherein the weight is substantially surrounded by the fabric.

6. A method of providing a seal between a loading dock and an area outside of the loading dock, the method comprising:

attaching a barrier to a dock leveler;

including a hinged region in the barrier to facilitate one portion of the barrier moving with respect to a second portion of the barrier; and

biasing the first portion of the barrier relative to the second portion of the barrier by attaching a first end of a sleeve to the barrier, having a second end of the sleeve remain detached from the barrier, and incorporating a weight into the sleeve.

7. The method of claim 6 , wherein the including step comprises providing a compressible pad and a fabric substantially surrounding the compressible pad and stitching through the pad and the fabric to locally compress the pad and thereby form the hinged region.

8. The method of claim 6 , wherein the biasing step causes the barrier to fold away from components of the dock leveler that come into contact with a pit floor when the dock leveler is in operation.

9. The dock leveler sealing system of claim 1 , wherein the barrier, hinged region, and biasing apparatus avoid contacting a support leg of the dock leveler and a pit floor when the dock leveler is a lowered position and the barrier is folded on itself.

10. The dock leveler sealing system of claim 9 , wherein the barrier is forced by the biased distal end of the barrier by the biasing apparatus to fold away from the support leg.

Assignments (2)
RELEASE OF SECURITY INTEREST Recorded Jan 30, 2013
From: WELLS FARGO BANK, NATIONAL ASSOCIATION
To: 4FRONT ENGINEERED SOLUTIONS, INC.
Reel/Frame 029720/0286 →
CHANGE OF NAME Recorded Dec 5, 2012
From: SPX DOCK PRODCUTS, INC.
To: 4FRONT ENGINEERED SOLUTIONS, INC.
Reel/Frame 029413/0772 →