# US 2021/0276744 A1 · Height adjustable cart for applying reusable wrapping device on palletized materials

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- Number: US 2021/0276744 A1
- Document ID: US20210276744A1
- Status: Published application
- Kind: A1
- Application number: 17/140,382
- Filed: 2021-01-04
- Published: 2021-09-09
- Earliest claimed: 2020-01-03
- Inventors: HUALONG WANG
- Web page: https://patentgrep.com/patent/US20210276744A1

## CPC

- B65B 11/48: Enclosing articles, or quantities of material, by folding a wrapper, e.g. a pocketed wrapper, and securing its opposed free margins to enclose contents
- B65B 59/001: {Arrangements to enable adjustments related to the product to be packaged}
- B65B 67/08: Wrapping of articles
- B65B: MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING (bundling and pressing devices for cigars A24C1/44; devices for tensioning and securing binders adapted to be supported by the article or articles to be bound B25B25/00; applying closure members to bottles, jars or similar containers B67B1/00-B67B6/00; concurrent cleaning, filling and closing of bottles B67C7/00; emptying bottles, jars, cans, casks, barrels or similar containers B67C9/00)

## Abstract

Implementations of the present disclosure generally relate to a height adjustable cart for applying a reusable wrap on palletized materials or for removing a reusable wrap from palletized materials. One embodiment provides an apparatus for applying a pallet wrap comprising a cart having an adjustable frame, and a removable wrap holder attached to the adjustable frame.

## Claims

### Claim 1

An apparatus, comprising:
a frame; and
an adjustable wrap holder attached to the frame, wherein the adjustable wrap holder comprises:
a wrap support; and
an actuator attached between the frame and the wrap support to move the wrap support relative to the frame.

### Claim 2 (depends on 1)

The apparatus of claim 1, wherein the wrap support is vertically movable relative to the frame.

### Claim 3 (depends on 2)

The apparatus of claim 2, wherein the wrap support comprises:
a U-shaped body; and
one or more alignment features for receiving a foldable wrap holder therein.

### Claim 4 (depends on 3)

The apparatus of claim 3, wherein the foldable wrap holder includes three support bars connected by two flexible belts.

### Claim 5 (depends on 4)

The apparatus of claim 4, wherein each support bar includes one or more hanging pegs for hanging one or more reusable wraps thereon.

### Claim 6 (depends on 5)

The apparatus of claim 5, wherein each of the alignment features include a notch for receiving a hanging peg therein.

### Claim 7 (depends on 1)

The apparatus of claim 1, wherein the actuator includes two pistons, each piston has a first end connected to the frame, and a second end connected to the wrap support.

### Claim 8 (depends on 1)

The apparatus of claim 1, wherein the adjustable wrap holder further comprises a guide disposed between the wrap support and the frame.

### Claim 9 (depends on 8)

The apparatus of claim 8, wherein the guide comprises a scissor lift.

### Claim 10 (depends on 8)

The apparatus of claim 8, wherein the adjustable wrap holder further comprises a cover over the actuator.

### Claim 11 (depends on 1)

The apparatus of claim 1, further comprising:
a step ladder assembly attached to the frame.

### Claim 12 (depends on 11)

The apparatus of claim 11, wherein the step ladder assembly comprises:
a first step board having a proximal end connected to the frame by a hinge and a distal end for latching to a support member, and the support member is attached to the frame.

### Claim 13 (depends on 12)

The apparatus of claim 12, wherein the first step board includes two or more pieces arranged in telescope.

### Claim 14 (depends on 12)

The apparatus of claim 12, wherein the step ladder assembly further comprises:
a second step board pivotably attached to the frame, wherein the second step board is shorter than the first step board.

### Claim 15 (depends on 14)

The apparatus of claim 14, wherein the step ladder assembly further comprises:
a link connected between the first step board and the second step board.

### Claim 16 (depends on 1)

The apparatus of claim 1, further comprising:
one or more guide arms attached to the frame, wherein the guide arms are positioned to align with openings of standard pallet blocks.

### Claim 17 (depends on 1)

The apparatus of claim 1, further comprising:
wheels attached to the frame.

### Claim 18 (depends on 17)

The apparatus of claim 17, further comprising:
a handle for steering.

### Claim 19

A foldable wrap holder, comprising:
a first support bar;
a second support bar;
a third support bar;
a first flexible belt connecting the first and second support bars; and
a second flexible belt connecting the second and third support bars.

### Claim 20 (depends on 19)

The foldable wrap holder of claim 19, wherein each of the first, second, and third support bar includes a hanging peg.