IP Library Granted Patent US 7,743,887
Granted Patent B2
US 7,743,887 · App. 11/212,944 · Granted Jun 29, 2010

Clip for transportation of ladders and method

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Quick Facts
Patent No.
US 7,743,887
App. No.
11/212,944
Granted
Jun 29, 2010
Kind
B2
Abstract

A clip for maintaining a first side rail of a first ladder adjacent to a second side rail of a second ladder which is in series with the first side rail. The clip includes a first portion connected to a support element and a second portion connected to the support element. The first portion, second portion and support element are one continuous piece. The first portion defines a hooking engagement with the first side rail and the second portion defines a receiving engagement with the second side rail. The first and second portion opening from opposite sides of the support element, respectively, which conform to the portion of the respective side rail that it receives for removably and frictionally holding the respective side rails in a self-gripping and form-fitting manner such that the side rails are maintained adjacent and in series to each other so that no damage is possible to the ladders by relative movement of the side rails under dynamic conditions brought about by motion during transportation. A method for securely transporting a first ladder which defines a first plane for climbing and at least a second ladder which defines a second plane for climbing.

Claims (11)

1. A method for securely transporting a first ladder which defines a first plane for climbing and at least a second ladder which defines a second plane for climbing comprising the steps of:

inserting a first side rail having a flange with a tip of the first ladder into a first portion having a first leg with a hook and a second leg of a clip such that the first side rail of the first ladder is removably held thereby and a second portion of the first clip extends from the first side rail essentially perpendicular to the climbing plane of the first ladder;

inserting a second side rail having a flange with a tip of the second ladder into the second portion having third and fourth legs of the clip such that the second side rail of the second ladder is removably held thereby, said second portion and said first portion of said clip having a common support element, said first portion defines a hooking engagement with the first side rail and said second portion defines a receiving engagement with the second side rail, said first and second portion opening from opposite sides of said support element, respectively, which conform to the outer surface of the flange of the respective side rail that it receives for removably and frictionally holding the respective side rails in a self-gripping and form-fitting manner, the hook has a first part which is curved toward the support element and a second part which extends from the first part essentially perpendicularly towards a center of the first rail, the hook contacts and extends along and holds an inner surface of the first side rail flange, the hook self-gripping, contacting and enveloping the tip and the flange; and

moving the ladders, with the clip holding and maintaining the first and second rails adjacent to each other so that no damage is possible to the ladders by relative movement of the rails and the ladders are maintained adjacent each other while the ladders are being transported.

2. A method as described in claim 1 wherein the first portion and second portion are U shaped.

3. A method as described in claim 2 wherein the first portion includes a first opening for removably receiving the first side rail, and the second portion includes a second opening for removably receiving the second side rail.

4. A method as described in claim 3 including a first element connected to the support element and a second element connected to the support element and maintained in spatial relationship from said first element by said support element.

5. A method as described in claim 4 wherein the support element maintains the first portion in spatial relationship with the second portion.

6. A method as described in claim 5 wherein the support element is disposed essentially perpendicular to the first element and second element.

7. A method as described in claim 6 wherein the first element and the second element are divided into a first, second, third and fourth leg by the support element.

8. A method as described in claim 7 wherein the legs and the support element are one continuous piece formed of molded plastic.

Assignments (2)
RELEASE OF SECURITY INTEREST IN PATENTS AT R/F 043328/0001 Recorded Jun 12, 2023
From: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
To: KNAACK LLC; WERNER CO.; WERNER TECHNOLOGIES, INC.
Reel/Frame 063957/0231 →
SECURITY AGREEMENT Recorded Apr 29, 2011
From: WERNER CO.
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 026200/0981 →