IP Library Granted Patent US 7,448,661
Granted Patent B2
US 7,448,661 · App. 11/707,323 · Granted Nov 11, 2008

Pallet loading and unloading sling

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Quick Facts
Patent No.
US 7,448,661
App. No.
11/707,323
Granted
Nov 11, 2008
Kind
B2
Abstract

Disclosed is a pallet loading and unloading sling, termed a SlingBag device, for efficiently transporting burlap bags and deploying them to secure and protect underwater pipelines. In preferred form, the SlingBag is a T-shaped mat that folds up into a four-sided bag. By using a SlingBag atop a wooden pallet, the process for loading and unloading burlap bags from the pallet may be simplified The SlingBag comprises two rectangular mats that are arranged in a perpendicular cross section, forming a T-shaped mat. When placed upon a pallet for loading, the central panel fits atop the pallet, and the four side flaps extend outward. Burlap bags filled with dry bulk sand or dry sand/cement mix are stacked atop the pallet with the SlingBag. Then, the side flaps are folded up to form a four-sided sling container, and the lifting loops on the side panels are tied in place to secure the sling. In the preferred embodiment, the SlingBag is comprised of polypropylene. This time saving process enables the pallet to be loaded onto a transport using a forklift, and the burlap bags to be picked-up from the pallet and lowered onto the desired location using a crane with a single point pick-up. A diver or remote operated vehicle (ROV) can release the burlap bags from the SlingBag.

Claims (4)

1. A slingbag comprising

a T-shaped flexible mat, comprising four side flaps extending out from a center panel;

four lifting loops, wherein each of said lifting loops durably connects one exterior corner of a side flap of said T-shaped mat to the most proximate exterior corner on another side flap; and

a plurality of ties, wherein two or more of said ties are durably attached to each side flap of said T-shaped flexible mat.

Assignments (9)
RELEASE OF SECURITY INTEREST IN PATENTS (RELEASES RF 031478/0632) Recorded May 4, 2016
From: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS SECOND LIEN AGENT
To: QUIKRETE INTERNATIONAL, INC.
Reel/Frame 038609/0967 →
PATENT SECURITY AGREEMENT Recorded Oct 23, 2013
From: QUIKRETE INTERNATIONAL, INC.
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS SECOND LIEN AGENT
Reel/Frame 031478/0632 →
PATENT SECURITY AGREEMENT Recorded Oct 18, 2013
From: QUIKRETE INTERNATIONAL, INC.
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS FIRST LIEN AGENT
Reel/Frame 031436/0180 →
RELEASE OF SECURITY INTEREST IN PATENTS AT REEL/FRAME NO. 28488/0877 Recorded Oct 14, 2013
From: WELLS FARGO BANK, NATIONAL ASSOCIATION
To: QUIKRETE HOLDINGS, INC.; THE QUIKRETE COMPANIES, INC.; QUIKRETE INTERNATIONAL, INC.; PAVESTONE, LLC; QUIKRETE CANADA HOLDINGS, LIMITED; SPEC/MIX, INC.
Reel/Frame 031408/0472 →
SECURITY AGREEMENT Recorded Oct 2, 2013
From: CUSTOM BUILDING PRODUCTS, INC.; QUIKRETE INTERNATIONAL, INC.; TARGET PRODUCTS LTD.; PAVESTONE, LLC; QUIKRETE HOLDINGS, INC.
To: WELLS FARGO BANK, NATIONAL ASSOCIATION
Reel/Frame 031333/0741 →
SECURITY AGREEMENT Recorded Jul 2, 2012
From: THE QUIKRETE COMPANIES, INC.; QUIKRETE INTERNATIONAL, INC.; QUIKRETE HOLDINGS, INC.; QUIKRETE CANADA HOLDINGS, LIMITED; SPEC/MIX, INC.; PAVESTONE, LLC
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 028488/0877 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 19, 2010
From: DAIGLE, RICHARD A.
To: THE QUIKRETE COMPANIES, INC.
Reel/Frame 024402/0629 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 19, 2010
From: THE QUIKRETE COMPANIES, INC.
To: QUIKRETE INTERNATIONAL, INC.
Reel/Frame 024402/0745 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 1, 2009
From: DAIGLE, RICHARD A.
To: THE QUIKRETE COMPANIES, INC.
Reel/Frame 023304/0906 →